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CPC 100
Multi-functional primary test system for
substation commissioning and maintenance

CPC 100 – The revolutionary all-in-one test system
The patented test system replaces numerous individual
testing devices and offers new, innovative testing
methods. This makes testing with the CPC 100 a timesaving and cost-effective alternative for conventional
testing methods. Despite its expansive capabilities, the
CPC 100 is very simple to use.

Turns ratio meter for transformers,
CTs and VTs

The powerful testing device provides up to 800 A or 2 kV
(2 kA or 12 kV with accessories) with up to 5 kVA over a
frequency range of 15 Hz to 400 Hz or 400 ADC.
Its compact design (29 kg / 64 lbs) makes it easy to
transport and ideal for on-site testing.

High-current injection
transformer

Using the CPC 100, electrical tests on various assets
can be performed:

>> Current transformers
>> Voltage transformers
>> Power transformers
Power meter (P, Q, S)

>> Power lines
>> High-voltage (HV) cables
>> Grounding systems
>> Rotating machines
>> GIS systems
>> Switchgear and circuit breakers
>> IEC 61850 installations

Excitation
curve tester

>> Protection relays

2 kV
12 kV (with booster)

Quality & Experience
The usage of high-quality components & intensive routine
testing in our factory have made the CPC 100 a reliable
companion for for our customers worldwide.
Phase angle
meter

The CPC 100 is being improved continuously in close
cooperation with our customers. Its new accessories and
continuous updates guarantee a future proof concept.

Line impedance and
cable measurement

On load tap changer
test equipment

Ground
resistance meter

Micro ohmmeter
400 ADC
Tester for Rogowski coils and other
unconventional CTs / VTs (IEC 61850)

29 kg / 64 lbs

single phase wall outlet
Winding resistance meter

Protection relay tester
(one phase V, I, f)

400 A DC

Multimeter
(V, I, R, Z, ...)

800 AAC
2 kA (with booster)
Step up transformer
2 000 V

Complex impedance meter
(burdens, cables, lines and
transformers)

15 Hz - 400 Hz

Vector group verification system
for power transformers
Polarity
checker

Power / dissipation factor
measurement set
3

9 good reasons for one system

>> Test several assets
(e.g. CT, VT, CB, power transformer)

>> Test different parts of an asset
(e.g. core, windings, bushing, insulation)

>> Perform numerous tests

>> Voltage and current injection with variable frequency

(e.g. ratio, polarity, burden,
excitation current)

>> Suppression of mains-related interference and
disturbances

>> Test results at different frequencies provide more
detailed information about an asset

>> Variable frequency testing is necessary for some
standardized and advanced diagnostic tests

>> Offline test preparation possibilities
(time-saving and less error-prone)

>> CPC 100 software automatically guides
the user through the test

>> Automated report generation

>> Light-weight (29 kg / 64 lbs)

>> Customizable test reports

>> Compact design

(e.g. different languages, customer logo)

>> Save costs on:
> Transport
> Handling
> Storage

>> CPC 100 fulfills highest safety requirements
>> CPC 100 is CE tested
>> CPC 100 tests according to IEEE and IEC standards
>> Measurements with the CPC 100 deliver reliable
and repeatable results due to high signal and
measurement accuracy
4

>> Durable case design for rough environments with
test field accuracy

>> Long lifetime due to high quality components
>> Premium quality cables and clamps
>> Comprehensive documentation (e.g. user manual
with connection diagrams, software help function,
videos, application notes)

>> Further applications can be covered by
adding additional hardware accessories

>> By upgrading the software:
> Additional tests can be performed
> Additional assets can be tested

>> Emergency switch-off button
>> Ground connection check
>> Overload detection
>> Multiple isolated outputs
>> Safety key lock
>> Discharge circuit to de-energize DC
test objects

>> Strobe light
>> 3-position safety switch
>> Grounding box

>> Unconventional assets can be tested
(e.g. Rogowski coils, low power CTs)

>> Testing according to IEC 61850-9-2
(e.g. Sample Values, Merging Unit testing)

>> Future applications areas will be covered
by newly developed accessories and software

CPC 100 product family – Extended range of applications
The CPC 100 covers a lot of different applications in and around substations as well as at the manufacturer’s production site.
Extended by a high number of valuable accessories the application range of the CPC 100 is further expanded.
Thus it is the ideal instrument for all major applications in the area of primary testing.

CPC 100
Applications
Current transformer testing
(page 8 – 9)

Voltage transformer testing
(page 10 – 11)

Power and distribution
transformer diagnosis (page 12 – 13)

Grounding system analysis
(page 16 – 17)

Switchgear / circuit breaker testing
(page 22 – 23)

Primary test system

Commissioning protection systems
(page 24 – 25)

Sampled Values testing
(page 26 – 27)

Extended range
with accessories
HV cable and power line analysis
(page 14 – 15)
Grounding box
Grounding system analysis
(page 16 – 17)

Coupling unit

Handheld grounding tester

HV-source

Remote control

Power and distribution transformer
diagnosis (page 12 – 13)

Switchgear / circuit breaker testing
(page 22 – 23)

Switch box

Rotating machine diagnosis
(page 18 – 19)
Compensation reactor
Voltage transformer testing
(page 10 – 11)

Tan Delta test set
(power factor)

Current transformer testing
(page 8 – 9)

Sampled Values testing
(page 26 – 27)

Current booster

Gas Insulated Switchgear testing
(page 20 – 21)
Resonance circuit

M/G

Current transformer (CT) testing
Why testing CTs?

CT testing with the CPC 100

Testing current transformers helps to detect installation
related and in-service related problems, such as:

Supplied from a single phase wall outlet, the CPC 100
can generate up to 800 A AC (2 000 A with CP CB2 current
booster) for injecting into the CT‘s primary side and
testing its ratio, polarity and burden.

Installation related

>> Transportation damages

Excitation curve measurement

>> Wiring errors

For excitation curve measurement, the CPC 100‘s output
is connected to the secondary terminals of the core. Within
an automatic test run, the CPC 100 measures the excitation
curve and displays the knee point voltage and knee point
current at rated frequency (according to the relevant IEC
or IEEE / ANSI standard). The CPC 100 also automatically
demagnetizes the CT core after the test.

>> Manufacturing defects
In-service related

>> Degradation of accuracy class
>> Shorted turns
>> Magnetized core
>> Burden failures in secondary circuit
>> Insulation material failures
With the CPC 100 many standard electrical tests for CTs
can be performed with one single device saving testing
time and labor costs. Additionally, unconventional CTs, like
Rogowski coils and IEC 61850 integrated systems, can also
be tested.

+ CPOL2
The CPOL2 can check the correct
polarity along the different
connection points in the secondary
wiring by analyzing the sawtooth
signal injected into the CT’s primary
side using the CPC 100.

Your benefits
>> Mulifunctional CT tests
>> Primary injection up to 2 kA
>> Simple wiring test with handheld
polarity checker (CPOL2)

>> Voltage withstand test up to 2 kV

Winding resistance measurment

Current transformer testing

Using the winding resistance measurement function also
allows the user to calculate the accuracy limiting factor (ALF)
for protection circuits and the instrument security factor (FS)
for metering circuits.

>> CT ratio (with burden)
up to 800 A or 2 000 A with CP CB2, 5 kVA output power

>> CT burden
up to 6 A AC | secondary

Power/dissipation factor (PF/DF) measurement

>> CT excitation curve

When combined with the CP TD1, the CPC 100 is also
capable of performing PF/DF measurements. This helps
to assess the insulation condition of the CT.

(knee point) up to 2 kVAC

>> Polarity check with CPOL2
up to 800 A or up to 2 000 A with CP CB2

>> Accuracy limiting factor (ALF) test
>> CT ratio with voltage
up to 130 VAC | bushing CTs

> CT winding resistance
up to 6 ADC

>> CT demagnetisation and remanence
>> CT voltage withstand test
up to 2 kVAC

>> CT ratio Rogowski and CT ratio low power
up to 800 A or up to 2 000 A with CP CB2, 5 kVA output power

>> Power/dissipation factor test
up to 12 kV, 300 mA | with CP TD1

>> IEC 61850 Sampled Values testing

+ CP CB2

+ CP TD1

With the CP CB2 primary injection of
current up to 2 kA can be realized for
CT testing.

For high-voltage CTs, insulation material
tests are very important and can be easily
done with the CP TD1 accessory.

Voltage transformer (VT) / potential transformer testing
Why testing VTs?

VT testing with the CPC 100

The majority of VT failures occur due to electrical stresses
or manufacturing and installation errors. Typically electrical
stresses are caused by:

With a voltage output of up to 2 000 VAC the CPC 100 can
be used to test VT ratio, polarity and burden.
By injecting voltage into the primary side, ratio can be measured. Thereby the phase angles of high-voltage output and
voltage measurement input are also measured. Thus the
correct VT polarity can be verified.

>> Thunderstorms
>> Ferro-resonances effects
>> Over-voltages

Applying voltage to the secondary VT circuits and measuring
the load current in amplitude and phase allows the actual
burden to be measured, ensuring that it is within the VT´s
specification data.

Especially in high-voltage and extra high-voltage
installations supervision of the VT insulation system is
important to ensure that its dielectric characteristics have
not degraded over time.
In case of (re-)commissioning of substations VT circuits
should also be checked. Verifying the VT´s nameplate data
helps to identify damages of the VT or wrong connections.

Your benefits
>> Ratio testing from 15 Hz - 400 Hz
>> Multi-functional VT testing
>> Simple wiring check with handheld
polarity checker (CPOL2)

Disturbance-free measurement
Voltage/potential transformer testing

The VT‘s secondary signal may be difficult to measure if it
is small in amplitude – especially if neighboring parts of the
substation are in operation. In case of strong disturbances,
the user can select a frequency different to that of the
power system and utilizes the “frequency selective measurement” function. Thus only the VT‘s output signal with
this particular frequency is measured while all other signals
are filtered out.

>> VT ratio
up to 2 kVAC | polarity and burden

>> VT burden
up to 130 VAC | secondary

>> VT secondary voltage withstand test
up to 2 kVAC

>> Polarity check with CPOL2
up to 2 kVAC

>> VT electronics
up to 2 kVAC

>> IEC 61850 Sampled Values testing
>> Power/dissipation factor test
up to 12 kV, 300 mA | with CP TD1

+ CPOL2

+ CP TD1

The CPOL2 can check the correct polarity
along the different connection points in
the secondary wiring by analyzing the
sawtooth signal injected into the VT’s
primary side using the CPC 100.

For high-voltage VTs, insulation material
tests are very important and can be easily
done with the CP TD1 accessory.

Power transformer testing
Testing power transformers – Most common
electrical tests with one device

Winding resistance measurement
The CPC 100 provides an easy and accurate (4-wire connection)
winding resistance measurement. Automatic measurement
for tapped windings (by using CP SB1 with the on load
tap changer) speeds up the measurement. The CPC 100
automatically discharges the inductive energy, which makes
the measurement safe.

Testing to assess the health of power transformers and
to diagnose problems is of utmost importance to ensure
the long-term and safe operation of these very expensive
power assets.
With the CPC 100 power transformers and their ancillary
components can be tested:

Demagnetisation

>> Windings

After switching off a transformer or after applying DC signals
to a transformer, the core remains magnetized. This can cause
problems for further diagnostic measurements or can lead
to higher inrush currents. By using the CP SB1 switch box the
integrated algorithm in the CPC 100 completely demagnetizes
the transformer core.

>> Tap changer
>> Bushings
>> Insulation
>> Core
>> Connection leads
>> Surge arrestors

Ratio & excitation current measurement
For measuring ratio and excitation current, the CPC 100
provides a 2 kV output, delivering 2500 VA. The test voltage
is generated digitally and the current is automatically
measured within the CPC 100. This makes the measurement
highly accurate, easy to set up, fast and safe.

Your benefits
>> Most common power transformer
tests with one device

>> Fully automated testing with
switchbox CP SB1

>> Advanced tap changer diagnostics
using OLTC scan (DRM)

>> Effective core demagnetization

Power/dissipation factor (PF/DF) measurement
Power transformer testing

For PF/DF measurement on power transformers and
bushings, the CPC 100 is combined with the CP TD1.
Measuring this factor over a broad frequency range – in
addition to mains frequency – helps to better assess the
insulation condition, for example detect whether the
cellulose or the oil is contaminated by moisture.

>> DC winding resistance (up to 100 ADC)
>> Transformer demagnetization (with CP SB1)
>> Dynamic load tap changer diagnostics
(on load tap changer test) (up to 100 ADC | optionally with CP SB1)

>> Transformer turns ratio (TTR) per tap
up to 2 kVAC | including polarity and excitation current |

Dynamic resistance measurement (DRM)

IEC 61387-1 support for transformer with unconventional vector groups

The DRM can be performed as a supplementary
measurement in order to analyze the OLTC’s switching
process. The CPC 100 + CP SB1 injects a DC current in
the same way that it does for static winding resistance
measurements with the the addition of recording the
dynamic behaviour of the diverter switch. Based on this
non-invasive testing method, failures can be detected
without opening the OLTC compartment.

>> Automatically determination of the transformer’s
vector group (with CP SB1)

>> Leakage reactance / short circuit impedance (up to 6 A AC)
>> Transformer, bushing: power/dissipation factor
+ insulation capacitance
up to 12 kV, 300 mA | frequency from 15 Hz to 400 Hz | with CP TD1

>> Insulating fluids: power/dissipation factor
up to 12 kV, 300 mA | with CP TD1 and CP TC12

>> Excitation current per tap (up to 12 kV, 300 mA | with CP TD1)
>> Frequency response of stray losses (FRSL)
>> Surge arrestors: leakage current and watt losses
up to 12 kV, 300 mA | with CP TD1

>> HV source for voltage withstand test
up to 15 kVA | with 3 CPCs + TRC1

>> HV source for PD measurements
up to 15 kVA | with 3 CPCs + TRC1

+ CP SB1

+ TRC1

+ CP TD1

The switchbox CP SB1
reduces wiring work at power
transformers. Thereby, the
time needed for testing
can be reduced and, at the
same time, safety can be
significantly increased.

The triple remote control
TRC1 allows three CPCs to be
synchronized safely. This allows
the CPC 100 to be used as a
powerful HV source. Matching
transformers are provided in
order to match the rated voltage
on the LV side.

Insulation condition assessment
of transformers, bushings and
insulation fluids (with the CP TC12).

HV-source

Line impedance measurement
X in Ω

Line parameters for distance protection

Zone under- and overreach

L in e
im p
Ph
e da
Fau ase -t
n ce
o
Z
im l t : C - gr
L
p e alc o u
da
n
u
n c e l a te d
d

e 1,
Zo n

Zo n

e 2,

These parameters are often calculated from software
tools, which do not provide actual line parameters due to
unknown soil properties, such as different soil resistivities,
pipelines or other unknown conductors. This leads to
under- or overreach of your distance protection relay
resulting in outage and loss of grid stability.

t1 =
0

t =
2
30 0
m

Correct line parameters are crucial for reliable and selective
distance protection. The set of parameters contains the
positive and the zero sequence impedance (Z1, Z0) as well
as the k-factor (kL, RE/RL and XE/XL, k0).

100 % of
Line length

R in Ω

The most frequent faults on power lines are ground faults.
In particular, inaccuracies from software calculation effect
this kind of fault. The example on the right shows a zone
overreach for a ground fault due to an incorrect k-factor
setting. In this case the assumed k-factor is higher than the
actual one. Therefore, a ground fault at the remote end of
the line is seen incorrectly in the first zone.
Incorrect k-factor (tendancy to overreach)

Mutual coupling
With this unique testing equipment, the mutual coupling
impedance between parallel lines can also be determined
to consider coupling effects for correct parameterization.

Your benefits
>> Accurate distance protection relay
settings by performing a line impedance
measurement

>> Safe and quick determination of Z1, Z0
and k-factors

>> Mutual coupling impedance
measurement between parallel lines
Ground grid

Testing with the CPC 100
Cable and transmission line diagnosis

The main unit CPC 100 generates the frequency variable
test current and measures current and voltage by applying
digital filtering for high accuracy. The complex loop
impedance is then calculated accordingly.

>> Line impedance and k-factor
up to 100 A | with CP CU1

>> Mutual coupling

The CP CU1 provides galvanic isolation between the line
under test and the CPC 100 as well as impedance matching
for short and long lines.

up to 100 A | with CP CU1

>> Positive or zero sequence impedance

The CP GB1 protects the test equipment and the user
from any unexpected overvoltage on the line under test.
Furthermore it allows a direct connection to the power line
for a convenient execution of the test.
A dedicated test template provides the positive and
the zero sequence impedance as well as the k-factor in
commonly used formats. Furthermore it shows the actual
zone reach for each fault type based on the measured
values and relay parameters that are currently being used.

+ CP CU1
The CP CU1 allows the safe connection
of the CPC 100 to a power line or
HV cable. The impedance matching
transformer within the CP CU1 ensures
optimum power transfer from the
CPC 100 to the power line.

Ground grid

CP GB1

Grounding system testing
Personnel safety

Fall-of-potential measurement (3-point test)

In the event of a ground fault hazardous step and touch
voltage can occur inside and outside of a substation.
Ground tests prove the effectiveness of grounding systems
and guarantee safety of people inside and outside the
substation.

The fall-of-potential measurement with the CPC 100
is performed according to EN 50522 or IEEE 81.
For the fall-of-potential measurement the voltage
between the ground grid and ground electrodes in
different distances to the ground grid is measured
until reference ground is reached. Dedicated software
transforms the test results into a voltage and impedance
chart which allows the ground potential rise and the
ground impedance to be determined.

A fall-of-potential measurement is usually performed to
determine the condition of the entire ground grid. On top
of that, step and touch voltages are measured at exposed
locations in order to ensure human safety in select areas.

Your benefits
>> Determine true test values by
power line injection

Ground grid

>> Simple and accurate step and touch
voltage measurements with handheld
HGT1 device
>> Reduction factor measurement on
ground wires and cable shields

Step and touch voltage measurement
Ground system analysis

Step and touch voltage measurements according to
EN 50522 and IEEE 81 are performed with the HGT1.
This handheld device employs frequency selective
measurements for effective noise suppression.

>> Ground grid impedance for large systems
up to 100 A | with CP CU1

>> Step and touch voltage

Furthermore, tests can be executed quickly and easily since
long test cables for connecting to the main device are no
longer necessary.

up to 100 A | with CP CU1 and HGT1

>> Ground grid impedance for small systems
up to 6 A AC

>> Soil resistivity

Dedicated test templates assess measured step and touch
voltages according to EN 50522 and IEEE 80 automatically.

up to 6 A AC

>> Integrity check of grounding connection
up to 400 ADC

>> Reduction factor / current split factor
>> Measure multiple current paths with Rogowski coil

+ HGT1
Primary Test Manager (PTM) and
HGT1 enable you to quickly, simply
and conveniently measure ground
impedance as well as step and touch
voltage. Due to a new approach there
is no operational personal required at
the CPC 100 anymore. Together, the
test director and assistants perform all
measurements out in the field in order to
avoid miscommunication and selection of
inadequate test points.

Ground grid

CP GB1

When testing large ground grids the potential of the ground grid under test and
the counter electrode must not overlap. This is done in order to ensure human
safety in a worst case scenario, which is always crucial. The CPC 100 + CP CU1
overcomes this problem by injecting the test current into a remote substation via
an existing power line.
17

Rotating machines diagnosis
Why test rotating machines?

PF/DF measurement and PF/DF tip-up test

Rotating machines, such as motors and generators, are
highly important components in power generation and
industrial applications. Therefore machine reliability and
availability are in high demand. Motors and generators are
exposed to high thermal, mechanical and electrical stress
that influences their reliability and life expectancy.

The PF/DF measurement is used as a maintenance tool for
entire windings. The portable solution CPC 100 + CP TD1 +
CP CR500 allows PF/DF measurements to be carried out at
nominal frequency.
The measurement results can be compared with previous
measurements, factory acceptance tests or a phase-tophase comparison can be made. An acceptable
PF/DF offers assurance that the insulation condition allows
reliable operation.

Premature failure may lead to significant economical
losses, due to unexpected outages and possible damage to
the asset itself. In order to plan maintenance effectively, it
is essential to have accurate condition information about
when components need to be repaired or replaced.

Furthermore, a parallel partial discharge measurement
allows for a more detailed diagnosis of the type of fault.
The CPC 100 + CP TD1 can be used as HV source for the
partial discharge measurement.

A variety of electrical tests can be performed with the
CPC 100 over the complete life cycle of machines to
increase their reliability, prevent premature failures and to
extend reliable service life.

The measurement complies with international standards
such as IEC 60894 and IEEE 286.

Your benefits
>> Portable HV source
>> High accurate PF/DF measurement
with reference capacitance for
maximum usability
>> Defined voltage steps for a combined
partial discharge and PF/DF
measurement enable reproducible
test conditions

DC winding resistance measurement
Rotating machines diagnosis

A DC resistance measurement is performed to detect
possible contact problems in the stator and rotor winding
of a machine.

>> Power/dissipation factor tip-up test
at 50 Hz / 60 Hz
up to 12 kV | 5 A| with CP TD1 and CP CR500

The CPC 100 offers an integrated micro ohmmeter with
a maximum output of 400 A. The 4-wire method is used
to detect connection problems in the stator winding (bad
soldering contacts) as well as contact problems on the pole
connectors of the rotor winding.

>> Power/dissipation factor test with variable frequency
up to 12 kV | frequency from 15 Hz to 400 Hz | with CP TD1

>> HV source for testing rotating machines
up to 12 kV | max. 2 µF | with CP TD1 and CP CR500

Both failures can be the root cause of a local hotspot and
potentially damage the machine.

>> DC winding resistance measurement
up to 400 A DC and 5 kVA down to the microohm range.

>> Pole drop test

Pole drop test
Mechanical stress in rotor windings cause inter turn faults
(short circuits), which can lead to a magnetic imbalance.
This causes higher shaft vibrations which puts more stress
on the bearings and can potentially damage them. The
CPC 100 provides the AC source and the accurate voltage
inputs nedded to perform the pole drop test.

+ CP CR500

+ CP TD1

The CP CR500 compensator
reactor enables the CP TD1 to be
used with test objects with large
capacitance such as large motors
and generators.

Insulation condition assessment of
motors and generators. The CPC 100
+ CP TD1 can provide up to 12 kV. It
can be be used as HV source and
PF/DF measurement system at the
same time.

Gas-insulated switchgear testing
Testing gas-insulated switchgear to date

Innovative GIS testing

Gas-insulated switchgears (GIS) are compact and are,
therefore, used in applications where space is limited. For
commissioning of GIS a high-voltage (HV) withstand test is
required in accordance with standards (IEC 62271-203).

With the CPC 100 + CP RC it is possible to perform GIS tests
without the need of a big HV transformer. This is possible
because the system directly makes use of a specially
designed “Power VT” for testing.

To date the test voltage needed for a withstand test has
been produced by a resonance circuit. This test system
consists of an HV test transformer, a coupling capacitor
and a power control unit. The HV test transformer and the
coupling capacitor have to be connected directly to the GIS.

This Power VT is an integral part of the GIS and generates
the required test voltage. CPC 100 injects power at the
LV side of the VT, producing the necessary voltage on the
HV side. A direct connection of the measuring system to
the integrated VT of the GIS system eliminates the need
for draining and refilling any SF6 gas.

Weak points of this testing principle:

The CPC 100 + CP RC system comprises several small and
light-weight components (< 21 kg / 46 lbs) which can
be transported by one person. With its modular design
GIS tests can even be accomplished at test sites with
limited space.

>> The complete test system is difficult to transport,
because it consists of very heavy and large
components.

>> It is difficult to use it at test sites with limited space,
such as wind turbines.

>> The HV test lead must be connected to, and
disconnected from, the GIS system for testing. This
normally includes a time-consuming venting and
refilling process of the SF6 gas.

Your benefits
>> Small and light-weight test system
with high output power
>> Testing without gas venting and
refilling procedure
>> Automatic frequency tuning for
ideal load compensation

Powerful voltage withstand testing
GIS testing

When combined with the CP RC1, the CPC 100 allows
withstand tests with a maximum test voltage of 200 kV
to be carried out on GIS systems up to a rated voltage of
123 kV. The CPC 100 + CP RC2 is appropriate for testing
GIS systems with a rated voltage of up to 145 kV and a
maximum test voltage of 235 kV. This package is supplied
with the additional CP AT1 auto-transformer to guarantee
the necessary output power of the CPC 100 for higher loads.

>> Withstand test
up to 235 kV | max 1.6 nF | with CP RC2

>> HV source for partial discharge measurements
up to 235 kV | max 1.6 nF | with CP RC2

HV source for partial discharge measurements
During production or maintenance, impurities can occur
in GIS. These can cause major problems in operation.
Therefore, it is recommended to perform a partial discharge
measurement during commissioning (acceptance tests).
While performing these measurements with our MPD series
the CPC 100 + CP RC can be used as the HV source.

+ CP CR

+ CP TR

+ CP AT1

With the compensating reactor
4 mH CP CR4 or 6 mH CP CR6
the CP CR compensates the
capacitance in a modular fashion.

The isolation transformer CP TR
provides a potential-free output
signal and compensates the
capacitive load.

The auto-transformer CP AT1
allows to connect the mains
supply of the CPC 100 to a
three-phase 16 A power outlet,
and delivers the required power
for the test setup.

Switchgear and circuit breaker testing
Why test switchgear and circuit breaker?

Contact resistance measurement

Switchgear consists of busbars, circuit breakers (CB),
disconnectors and earthing switches. There are various
connections and contacts within the switchgear. Poorly
maintained or damaged contacts can cause arcing, single
phasing or even fire which can lead to the total loss of
the asset.

The CPC 100 can measure contact resistance by injecting a
current of up to 400 ADC into the contacts and measuring
the voltage drop (using the 4-wire method). The resistance
value can be compared to the value given by the manufacturer as well as to previous records.

Therefore, it is common practice to conduct contact resistance measurements to ensure that the connections have
been made with the appropriate contact pressure.
Additionally, the insulation of CBs within the switchgear
has to be tested. These assets are frequently exposed to
HV stresses, switching currents and very high fault currents,
which heat up the circuit breakers and impact on the insulation material.

Your benefits
>> Contact resistance testing with up to
400 A DC
>> Power/dissipation factor measurement
>> Testing of entire chain from the CT to
the CB's main contacts

Insulation testing of circuit breakers
Switchgear / circuit breaker testing

For power/dissipation factor measurements on CBs, the
CPC 100 is combined with the CP TD1. Measuring this
factor over a wide frequency range – in addition to mains
frequency – helps to better assess the insulation condition.

>> Contact resistance
up to 400 ADC

>> Bushing: power/dissipation factor (tan δ)
+ insulation capacitance
12 kV, 300 mA | frequency from 15 Hz to 400 Hz | with CP TD1

>> Circuit breaker: power/dissipation factor (tan δ)
up to 12 kV, 300 mA | frequency from 15 Hz to 400 Hz | with CP TD1

>> Insulating fluids: power/dissipation factor (tan δ)
up to 12 kV, 300 mA | with CP TD1 and CP TC12

+ CP TD1

CPC 100

Insulation condition assessment of
circuit breakers and insulation fluids
(with CP TC12).

μΩ measurement with the CPC 100‘s
400 ADC capabilities enables accurate
contact resistance measurements on
circuit breakers.

Commissioning and trouble shooting of protection systems
Commissioning protection systems

CT & VT performance check

In order to work properly, protection and control systems
have to be correctly integrated into the substation or
power plant. Quantities from the primary system are transformed at the VTs and CTs – using their different cores
– and so the voltage and current signals must be correctly
connected to the protection relays, automation units and
meters.

The CPC 100 allows the verification of the ratio and polarity of CTs and VTs – preventing wrong connections, especially in the case of tapped CTs. Injecting current or voltage
into individual CTs / VTs and checking the reading at the
relay ensures that phases are not mixed up and that the
CT and VT ratio setting in the relay is correct.
The CPC 100 can also measure the burden on the CTs
and VTs and, by determining the CT’s excitation curve, it
ensures that the protection circuits are connected to the
appropriate CT cores.

From these protection and control units, the trip signals
are routed back to the primary apparatus, for example,
the circuit breakers. A fault in any part of this system may
result in a system failure – false tripping or a failure to trip.

Wiring check

To prevent such a failure, the system’s functionality can be
verified by injecting into the primary side of the CT or VT
and checking the measured values at the relay or automation unit. Finally, injecting current at the magnitude of
a fault should result in the tripping of the circuit breaker,
which allows the verification of the complete chain.

The CPC 100 can help to verify that the secondary wiring
is correct. By injecting a sawtooth signal into the CT or VT,
the operator verifies with a handheld device that the signal
has the correct polarity at the connection points of the secondary systems.

Busbar

Your benefits
>> Testing of entire chain from the CT
to the CB's main contacts
>> Versatile due to high-current and
high-voltage outputs

Relay

>> Wide range of applications covered

Control room

Wiring
terminal
Wires

Timing of CBs with overcurrent elements
Protection installation testing

For testing of CBs or load breaker switches with integrated
overcurrent elements, the CPC 100 can inject AC primary
currents up to 800 A (or 2000 A together with the current
booster CP CB2), and measure the time from the start of
the injection to the interruption of the current.

>> CT ratio (with burden)
up to 800 A or 2000 A with the CP CB2, 5 kVA output power

>> CT burden
up to 6 A AC | secondary

>> CT excitation curve (knee point)

Primary injection

up to 2 kVAC

With the CPC 100 primary faults can be simulated to check
if overcurrent, differential or distance relays operate correctly. The total trip time including the CB operating time
can also be measured in this test.

>> VT ratio
up to 2 kVAC | polarity and burden

>> VT burden
up to 130 VAC | secondary

>> Overcurrent relays with primary injection (MV)
up to 800 A or 2000 A with the CP CB2, 5 kVA output power

>> Polarity check with CPOL2
up to 800 A or 2 kVAC , 5 kVA output power

>> Testing of the entire protection chain
by primary fault current injection and live CB tripping

CT
+ CPOL2

CPC 100

The CPOL2 can check the correct polarity
along the different connection points
in the secondary wiring by analyzing the
sawtooth signal injected into the VT’s
and CT´s primary side using the CPC 100.

The CPC 100 can inject up to 800 A (2 000 A
with the CP CB2) or up to 2 kV as well as a
sawtooth polarity check signal into CTs or
VTs in the HV yard, hence performing testing
on the whole system.

Wiring
terminal

HV yard

IEC 61850-9-2 Sampled Values testing
IEC 61850

Sampled Values

The standard for “Communication Networks and Systems
for Power Utility Automation”, IEC 61850, utilizes network
technologies for all types of information exchange.

A merging unit (MU) collects the measured current and
voltage values from the current and voltage sensors. Then
it merges the digitized values, which are called “Sampled
Values” (SV), into a data stream published to the substation
network.

Within IEC 61850, protocols for the transmission of
instantaneous voltage and current values are specified.
The sensors used in the transmission process can be
conventional CTs and VTs as well as unconventional
current and voltage sensors.

Using this method, measured values (for example, the
bus voltage for a busbar protection scheme) can easily be
distributed to multiple bay devices.

0111000

Your benefits

800 A
2 kV

>> Ready for applications in digital
substations
>> Closed loop testing of merging units
>> Primary injection works independently
of the sensor technology used

Sampled Values testing with the CPC 100
Sampled Values testing

The CPC 100 test system performs closed-loop testing
whereby a test signal is injected on the primary side
of the current / voltage sensors. The MU converts the
sensor output into a SV stream which is published to the
substation network. The CPC 100 then reads the data
back from the network in order to perform a variety of
different tests.

>> SV CT ratio test and polarity check
up to 800 A or up to 2 000 A , 5 kVA output power | with the CP CB2

>> SV VT ratio test and polarity check
up to 2 kVAC

>> Automatic MU detection
>> Automatic voltage / current channel detection

Automatic MU and channel detection is achieved by
injecting a test signal with a specific wave form. An
optimized and time-effective algorithm searches for the
unique test pattern within all the available MUs on the
network to identify the correct channel for testing.

>> Frequency selective voltage / current meter
>> Noise level measurement
>> Amplitude response of the signal processing chain
up to 800 A or up to 2 kVAC | frequency from 15 Hz to 400 Hz

The CPC 100’s SV test card operates according to the
“Implementation Guideline for Digital Interface to
Instrumental Transformers using IEC 61850-9-2” published
by the UCA International User Group.

CPC 100

0001

The CPC 100 injects a sinusoidal test
signal to perform tests such as the ratio
test. Additionally, the CPC 100 generates
specific periodic wave shapes to identify
the correct MU and corresponding test
channel.

Closed-loop testing

0111000001

MU
VT

Substation
Network

CTs, VTs and
unconventional
sensors

Operation of CPC 100: front panel
Operating from the front panel
Selecting test cards directly

The test template can be seen as a test plan. It tells the user
which measurements to make and provides the basis for
the overall test report.

Operating the CPC 100 manually provides the quickest
results with minimal training and preparation – perfect for
users who only operate the device occasionally. The user just
selects the test card to be used, connects the CPC 100 to the
asset and performs the test by pressing the start button.

Test templates can be prepared in advance in the office on
the PC – without the CPC 100 connected – and can then be
executed on site, step by step. Users can also create their
own test templates and define, which test cards they want
to include.

Using pre-defined test templates

The settings and results of all manual tests can be stored
on a flash memory and transfered to a PC using a USB
memory stick or ethernet connection.

Additionally, pre-defined test templates help the user to
perform frequently used tests conveniently and efficiently.
A number of test cards (for example, power/dissipation
factor, winding resistance, ratio measurement, etc.) are
combined into one test template. An example is the
template containing all the recommended measurements
for testing a current transformer.

CPC 100 test card

Customized reporting: Microsoft Excel™
Different ways to operate

After transferring the test results to a PC, report templates
in numerical and graphical form are available.

The CPC 100 offers different operating modes, to meet
the personal preferences of the user:

The measurement data – including settings and results as
well as administrative information such as date and time,
filename, etc. – can also be imported to these templates
for customized reporting, graphical result evaluation and
further analyses.

>> From the front panel:

Selecting test cards directly
>> From the front panel:

Using pre-defined test templates

Microsoft Excel™ reports provide the basis for clientspecific reporting and allow test reports to be adapted to
utility or manufacturer specific formats. Further content,
such as company logos, can also be added.

>> Fully automated:

Using Primary Test Manager™ (see next page)

Test reports can then be printed in a variety of languages.

Test template with test cards

Test report
29

Step by step through the test procedure with Primary Test ManagerTM
Managing location, asset and test data
The Primary Test Manager (PTM) software
solution makes it possible to perform a multitude
of tests on power transformers, circuit breakers,
and current transformers. It provides active
guidance for the user during the process of testing
with the CPC 100, making tests faster, easier, and
safer.

PTM provides a well-structured database for managing
test results and getting a comprehensive overview of the
asset's condition. Locations, assets, jobs and reports can
be defined and managed quickly and easily.

Import and export functionality
PTM supports data exchange between different test
systems. Data can be imported easily in the PTM database.
In addition, they can be filtered or exported in common
formats (XML, PDF, Microsoft Word™, Microsoft Excel™).
Data synchronization and back-up
During on-site testing, data is often generated by multiple
testing teams. With the ‘PTM DataSync’ module all data
can be synchronized to a central database hosted on
premises or in the cloud. In doing so, data synchronization
and storage becomes safer and more convenient. The
relevant locations can be selected in order to keep the
local database small.

Easy management of location, asset and test data due to a structured database,
implemented search and filter functions and automatic data synchronization.

PTM supports in the best possible
wiring diagrams and asset-specific

Executing diagnostic tests

Result analysis and reporting

PTM helps to define the test asset with specific nameplate
views. It indicates mandatory and recommended
parameters, making data entry fast and easy.

A real-time overview of the test results is given during the
measurement and an instant “pass/fail” assessment of
the test results is displayed based on specified limit values.

Based on the nameplate values, PTM generates a
customized test plan according to current standards and
guidelines for each asset. This way PTM is able to provide
you with a comprehensive test plan for assessing the
condition of your asset thoroughly.

PTM automatically generates reports including all assetrelated information and the tests that have been performed.
This gives a comprehensive overview of the test object, test
results and assessment.
Comparison tools for detailed analysis

Easy connection due to wiring diagrams

For a detailed analysis, different test results can be
compared side-by-side or trended over time. Users can
choose between a time- and type-based comparison
as well as a phase-based comparison.

Pre-configured wiring diagrams based on selected assets
help to set up the CPC 100 correctly. This minimizes the
likelihood of measurement errors and speeds up the
testing process.

Customized, individual reports
User can adapt reports to their needs in PTM. Reports can
be generated in Microsoft Word™, Microsoft Excel™ and
as a PDF file.
They can be further adapted by e.g. compiling the included
parts, providing comments or incorporating a company logo.

way during execution of diagnostic tests via
test plans according to international standards.

For a comprehensive analysis, PTM offers automatic result assessment
and comparison as well as customized reporting.

Front panel and connection possibilities

19
12

3
6

14
18

1. Grounding terminal

9. 6 A or 130 V output

2. High AC voltage output 2 kV AC

10.

3. External booster output

11. Current measuring input 10 A AC or DC

4. High DC current output 400 A DC

12. Voltage measuring input 300 V AC

5. High AC current output 800 A AC

13. Low level voltage measuring input 3 V AC

6. Mains power supply

14.

7. Overcurrent protection

15. Binary input for potential-free contacts or

Current output 6 A DC

Voltage measuring input 10 V DC
voltages up to 300 V DC

8. Power switch

16.

Safety key lock

17.

Signal lights

18.

Emergency stop button

28
30

23
25

19. Keys for the quick selection of applications

29.

20.

Keys for the quick selection of the desired view

30. Plug to connect external safety functions

21.

LCD monitor

31. Socket for the connection of the CPC 100

22.

Soft-touch keys which change their function
according to the selected application

to a network or direct connection to a
PC’s network connector

32.

23. Keys for selecting stacked test cards
24.

Numerical keyboard

25.

Advanced jog-dial hand wheel with “click”
(Enter) function

26.

Up / down keys for navigation and entering values

Serial interface for devices such as CP TD1

27. Test start / stop button
28. User manual

USB memory stick connection

Technical data CPC 100
CPC 100
Generator / Outputs

Inputs

Current outputs

Measuring inputs (Accuracy6)
Vmax

Powermax

Range

Amplitude t

800 A AC 3

0 ... 800 A

25 s

6.0 V

4 800 VA

15 Hz ... 400 Hz

0 ... 400 A

8 min.

6.4 V

2 560 VA

15 Hz ... 400 Hz

0 ... 200 A

>2h

6.5 V

1 300 VA

15 Hz ... 400 Hz

1
max

Input

Imped.

I AC / DC4, 7 < 0.1 Ω

Amplitude Amplitude

Phase

Reading
Error

Full scale
Error

10 A AC

< 0.05 %

< 0.10°

< 0.05 %

< 0.15°

Range

6 A AC

0 ... 6 A

>2h

55 V

330 VA

15 Hz ... 400 Hz

1 A AC

3 A AC10

0 ... 3 A

>2h

110 V

330 VA

15 Hz ... 400 Hz

10 A DC

< 0.03 %

< 0.08 %

–

1 A DC

< 0.03 %

< 0.08 %

–

300 V

< 0.05 %

< 0.10°

< 0.05 %

< 0.10°

400 A DC

0 ... 400 A
0 ... 300 A

6 A DC

4, 10

2 min.
3 min.

6.5 V
6.5 V

2 600 VA
1 950 VA

V1 AC

500 kΩ

0 ... 200 A

>2h

6.5 V

1 300 VA

30 V

0 ... 6 A

>2h

60 V

360 VA

< 0.10 %

< 0.05 %

< 0.10°

300 mV

< 0.15 %

< 0.05 %

< 0.10°

< 0.03 %

< 0.08 %

< 0.10°

2 000 A AC 3 with an optional current booster (CP CB2)
V2 AC

8, 11

10 MΩ

Voltage outputs

300 mV

< 0.08 %

< 0.10°

30 mV

< 0.10 %

< 0.25 %

< 0.15°

10 V

< 0.03 %

< 0.08 %

–

Range

Amplitude5 tmax

Imax

Powermax5 f

2 kV AC 3

0 ... 2 kV

1.25 A

2 500 VA 15 Hz ... 400 Hz

0 ... 2 kV

>2h

0.5 A

1 000 VA 15 Hz ... 400 Hz

< 0.03 %

< 0.08 %

–

1 kV AC 3

0 ... 1 kV

1 min.

2.5 A

2 500 VA 15 Hz ... 400 Hz

100 mV

< 0.05 %

< 0.10 %

–

0 ... 1 kV

>2h

1.0 A

1 000 VA 15 Hz ... 400 Hz

10 mV

< 0.05 %

< 0.15 %

–

0 ... 500 V

1 min.

5.0 A

2 500 VA 15 Hz ... 400 Hz

0 ... 500 V

>2h

2.0 A

1 000 VA 15 Hz ... 400 Hz

0 ... 130 V

>2h

3.0 A

390 VA

500 V AC 3

130 V AC10

1 min.

V DC4, 7

Additional features of the measuring inputs
Automatic range switching (except Amplifier test card)
Galvanically separated potential groups: I AC/DC ; V1 & V2 ; V DC
AC frequency range: 15 Hz to 400 Hz (except Amplifier test card)
Protection of I AC/DC input: 10 A very fast acting (FF) fuse 4

15 Hz ... 400 Hz

Internal measurement of outputs (Accuracy6)
Amplitude

Amplitude

Phase

Output

Range

Reading
Error

Full scale
Error

800 A AC

–

< 0.10 %

< 0.10°

400 A DC

–

< 0.20 %

< 0.05 %

–

2 kV AC

2 000 V

< 0.05 %

< 0.10°

1 000 V

< 0.05 %

< 0.15°

500 V

< 0.05 %

< 0.20°

< 0.20 %

< 0.05 %

< 0.10°

500 mA

< 0.05 %

< 0.10°

Binary input for dry contacts or voltages up to 300 V DC7
Trigger criteria:
Toggling with potential-free contacts or

voltages of up to 300 V
Input impedance:
> 100 kΩ
Response time:
1 ms

Output to input synchronization
Test cards Quick,
Sequencer, Ramping

Amplifier test card

Frequency range 48 Hz ... 62 Hz

48 Hz ... 62 Hz

Synchronization
inputs

V1 AC, V2 AC, I AC
(fixed to maximum range)

V1 AC
(automatic range switch)

Input
magnitude

10 % of input range full scale

Output
magnitude

5 % of output range full scale

Settling time

100 ms after 5 % of
output range full scale
is reached

1 000 ms after 5 % of
output range full scale
is reached

Signal changes

All quantities must be
ramped within 20 signal
periods

No changes of frequency
and phase. Magnitude
changes without limitation.
Output follows within
250 ms

Phase tolerance

0.5 ° within the limits as specified above

Resistance measurement
4-wire measurement with 400 A DC output and 10 V DC input
Current

Resistance

Voltage

Accuracy (full scale)

400 A

10 μΩ

4 mV

Error < 0.70 %

400 A

100 μΩ

40 mV

Error < 0.55 %

All input / output values are guaranteed for one year within an
ambient temperature of 23 °C ± 5 °C / 73 °F ± 10 °F, a warm-up time
longer than 25 min. and in a frequency range of 45 Hz to 60 Hz or DC.
Accuracy values indicate that the error is smaller than ± (value read x
reading error + full scale of the range x full scale error).

400 A

1 mΩ

400 mV

Error < 0.50 %

400 A

10 mΩ

Error < 0.50 %

With a mains voltage of 230 V using a 2 × 6 m high-current cable
at an ambient temperature of 23 °C ± 5 °C / 73 °F ± 10 °F.

The power and maximum voltage may be reduced above 60 Hz
or below 50 Hz.

Output can be synchronized with V1 AC in Quick, Sequencer,
Ramping and Amplifier test cards.

The inputs and outputs are protected with lightning arrestors
between the connector and against the protective earth. In the
event of application of energy exceeding a few hundred Joule the
lightning arrestors apply a permanent short-circuit to the input /
output.

The power and amplitude may be reduced above 200 Hz or
below 50 Hz.

4-wire measurement with 6 A DC output and 10 V VDC input
Current

Resistance

Voltage

Accuracy (full scale)

100 mΩ

0.6 V

Error < 0.35 %

1Ω

Error < 0.35 %

10 Ω

10 V

Error < 0.25 %

2-wire measurement with 10 V VDC input
Current

Resistance

> 5 mA

100 Ω

Error < 0.60 %

> 5 mA

1 kΩ

Error < 0.51 %

98 % of all units have an accuracy better than specified as “typical”.

Error < 0.50 %

This input is galvanically separated from all other inputs.

V1 and V2 are galvanically coupled but separated from all other
inputs.

There are power restrictions for mains voltages below 190 VAC.

10.

Fuse-protected.

11.

When using the CTRogowski test card, the 3 V V2 AC input uses
an additional software based integration method. In the range of
50 Hz < f < 60 Hz, this results in a phase shift of 90 ° as well as an
additional phase error of ± 0.1 ° and an additional amplitude error of ± 0.01 %. For frequencies in the range of 15 Hz < f < 400 Hz,
the phase error is not specified, and the amplitude error can be
up to ± 0.50 % higher.

> 5 mA

Voltage

10 kΩ

Accuracy (full scale)

Power supply and mechanical data
Single-phase,
nominal9

100 VAC ... 240 VAC, 16 A

Single-phase,
permissible

85 VAC ... 264 VAC (L-N or L-L)

Frequency, nominal

50 Hz / 60 Hz

Power consumption < 3 500 VA (< 7 000 VA for a time < 10 s)
Connection

IEC 320 / C20

Weight

29 kg / 64 lbs (case without protection cover)

Dimensions
(W × H × D)

468 × 394 × 233 mm (18.4 × 15.5 × 9.2 in),
cover, without handles.

Equipment reliability
Shock

IEC / EN 60068-2-27, 15 g / 11 ms,
half-sinusoid, each axis

Vibration

IEC / EN 60068-2-6, frequency range from
10 Hz to 150 Hz, continuous acceleration 2 g
(20 m /s2 / 65 ft /s2), 10 cycles per axis

Environmental conditions for CPC 100 and CPC 100 accessories
Operating temperature -10 °C ... +55 °C /+14 °F ... +131 °F
Storage temperature

-20 °C ... +70 °C / -4 °F ... +158 °F

Humidity range

5 % ... 95 % relative humidity, no condensation

Technical data CPC 100 accessories
CP TD1 – Tan-delta unit
Combined with the CPC 100, the CP TD1 measures the capacitance and dissipation factor (power factor)
with laboratory precision.
Impedance

High-voltage output
S

tmax

Range

Resolution Typical accuracy

Conditions

0 ...12 kV AC 300 mA

3 600 VA

> 2 min.

15 Hz ... 400 Hz

6 digits

0 ...12 kV AC 100 mA

1 200 VA

> 60 min.

15 Hz ... 400 Hz

1 kΩ ...
1, 200 MΩ

V test =
300 V ... 10 kV

U/f

Error < 0.5 %
of reading

Internal measurement of voltage output / current inputs

Phase angle

Range

Resolution

Typical accuracy

Conditions

Range

Resolution Typical accuracy

Conditions

0 ... 12 000 VAC

Error < 0.3 % of
reading + 1 V

V > 2 000 V

-90° ... +90°

4 digits

V test = 300 V ... 10 kV

0 ... 5 A AC

5 digits

Error < 0.3 % of
reading + 100 nA

Ix < 8 mA

Quality factor
Range

Resolution Typical accuracy

5 digits

Error < 0.5 % of
reading

Ix > 8 mA

0 ... 1 000

5 digits

Error < 0.5 % of reading + 0.2 %

> 1 000

5 digits

Error < 5 % of reading

Capacitance Cp (equivalent parallel circuit)

Error < 0.01 °

Inductance

Range

Resolution

Typical accuracy

Conditions

Range

Resolution

Typical accuracy

1 pF ... 3 μF

6 digits

Error < 0.05 % of
reading + 0.1 pF

Ix < 8 mA, V test =
300 V ... 10 kV

1 H ... 1 000 kH

6 digits

Error < 0.3 % of reading

1 pF ... 3 μF

6 digits

Error < 0.2 % of
reading

Ix > 8 mA, V test =
300 V ... 10 kV

Watts / power (P, Q, S)

Power factor PF / dissipation factor DF
Range

Resolution

Typical accuracy

Conditions

0 ... 10 %
(capacitive)

5 digits

Error < 0.1 % of
reading + 0.005 %

f = 45 Hz ... 70 Hz,
I < 8 mA, V test =
300 V ... 10 kV

0 ... 100 % (PF) 5 digits
0 ... 10 000 % (DF)

Error < 0.5 % of
reading + 0.02 %

Range

Resolution

0 ... 3.6 kVA

5 digits

0 ... 3.6 kW/kVAr 6 digits

Typical accuracy
Error < 0.5 % reading + 1 mVA
Error < 0.5 % reading + 1 mW / mVAr

Mechanical data

V test =
300 V ... 10 kV

Dimensions (W × H × D)

450 × 330 × 220 mm / 17.7 × 13 × 8.7 in

Weight

25 kg / 55.2 lbs

CP SB1 – Switch box

CP TC12 – 12 kV oil test cell

The CP SB1 switch box enables fully automatic
testing of three-phase power transformers.

The CP TC12 oil test cell precisely determines the dielectric
constant, the dissipation factor (tan delta) and the power
factor of insulating liquids such as transformer oil.

AC input / V1 AC output

Max. 300 Vrms

DC input

Max. 6 ADC

Cell type

Transformer high and
Max. 300 Vrms between all connectors
low voltage connections and ground

Three-electrode design
with guard

Test gap

11 mm / 0.43 in

Supply

Via serial interface from CPC 100 (+15 V)

Capacitance of empty cell (air)

Approx. 65 pF ± 10 %

Dimensions (W × H × D)

357 × 235 × 111 mm / 14.1 × 9.2 × 4.4 in

Sample volume

1.2 liters ... 2 liters / 41 ... 68 fl.oz.

Weight

3.5 kg / 7.7 lbs

Max. RMS test voltage

12 kV

Inner dimensions (diameter × height) 172 mm × 180.8 mm / 6.8 × 7.1 in

Outer dimensions (W × H × D)

220 × 235.5 × 220 mm /
8.7 × 9.3 × 8.7 in

Weight

Approx. 9.2 kg / 20 lbs

CP CU1 – Coupling unit
In combination with the CPC 100 the CP CU1 is used for line parameter measurements and ground testing.

Output ranges

Inputs

Range

Current

Compliance voltage at > 45 Hz

10 A

0 ... 10 A rms

500 Vrms

20 A

0 ... 20 A rms

250 Vrms

50 A

0 ... 50 A rms

100 Vrms

100 A

0 ... 100 A rms 50 Vrms

Characteristic

Rating

V SENSE

Overvoltage
category

CAT III (IEC 61010-1)

Voltage range

0 ... 600 Vrms

BOOSTER

Overvoltage
category

CAT I

Output power

Voltage range

0 ... 200 Vrms

Characteristic

Rating

Current range

0 ... 30 Arms

Maximum
power

5 000 VA (45 Hz ... 70 Hz), cos φ < 1.0 for 8 s at 230 VAC
5 000 VA (45 Hz ... 70 Hz), cos φ < 0.4 for 8 s at 115 VAC

Frequency range

15 Hz ... 400 Hz

Fuse

Continuous
power

0 ... 1 600 VA

30 A fast acting,
automatic circuit breaker

Accuracy

Measuring transformers
Transformer

Ratio

Accuracy at 50 Hz / 60 Hz

600 V : 30 V

Class 0.1

100 A : 2.5 A

Class 0.1

Range

Mechanical data
Dimensions (W × H × D)

450 × 220 × 220 mm / 17.7 × 8.7 × 8.7 in

Weight

28.5 kg / 62.78 lbs

Accuracy
of absolute
value

Accuracy
of phase
angle

V SENSE
voltage

I OUT
current

Current
range
100 A

0.05 ... 0.2 Ω 1.0 ... 0.5 %

1.5 ... 0.8° 5 ... 20 V

100 A

0.2 ... 2 Ω

0.5 ...0.3 %

0.8 ...0.5°

20 ... 50 V

100 ... 25 A 100 A

2 ... 5 Ω

0.3 %

0.5°

100 V

50 ... 20 A

50 A

5 ... 25 Ω

0.3 %

0.5°

100 ... 250 V 20 ... 10 A

20 A

25 ... 300 Ω

0.3 ... 1.0 %

0.5 ... 1.5° 250 ... 500 V 10 ... 1,5 A

10 A

CP GB1 – Grounding box

HGT1 – Handheld grounding tester

The CP GB1 grounding box features high current
surge arrestors to protect the CP CU1 and the CPC 100
from unexpected overvoltages on the line under test.

The HGT1 handheld grounding tester can be combined with
the CPC 100 and CP CU1 to measure step and touch voltages.

Nominal ac spark-over voltage

< 1 000 Vrms

Impulse spark-over voltage

< 2 000 Vpeak

Short circuit proof with:

16 mm cylindrical or 20 mm ball studs 26.5 kA (< 100 ms) / 67 kApeak
25 mm ball studs

30 kA (< 100 ms) / 75 kApeak

Torsional moment for changing
arrestors

> 15 Nm

Dimensions (Ø × H)

200 × 190 mm / 7.9 × 7.5 in

Weight

6.8 kg / 13.2 lbs
(including grounding cable)

Voltage input

Max. 25 Vrms

Power supply

1 × 3.7 V lithium polymer
(Li-Po) battery

Dimensions (W × H × D)

90 × 180 × 45 mm /
3.5 × 7.1 × 1.8 in

Weight (including battery)

0.48 kg / 1 lb

Technical data CPC 100 accessories
CP DB1 – Discharge box

CP CR500 – Compensation reactor

The CP DB1 transformer discharge box facilitates
fast discharging of power transformers during the test process.

The CP CR500 compensating reactor allows to test the
insulation quality of generators, motors, cables and other
systems with large capacitance.

6 A path

Switch closed

6 A continuous

Switch open

The discharge process is faster by a
factor of 4 compared to the CPC 100
6 Apeak
Overtemperature protection:
85 ºC / 185 ºF
Overvoltage protection: 150 V / 5 kA
between connectors

100 A path Switch closed
Switch open

Inductors

2 × 40 H

2 × 80 H

1 × 40 H and 1 × 80 H

Current compensation
50 Hz

2×1A

2 × 0.5 A

1 × 1 A + 1 × 0.5 A

60 Hz

2 × 0.8 A

2 × 0.4 A

1 × 0.8 A + 1 x 0.4 A

Capacitance compensation

100 A continuous

50 Hz

2 × 250 nF

2 × 125 nF

1 × 250 nF + 1 × 125 nF

60 Hz

2 × 180 nF

2 × 90 nF

1 × 180 nF + 1 × 90 nF

On/off times at 25 °C

The discharge process is faster by a
factor of 10 compared to the CPC 100
100 Apeak
2 500 Jmax
Overvoltage protection: 200 V / 30 kA
between connectors

Mechanical data
Dimensions (W × H × D)

357 × 235 × 147 mm / 14.0 × 9.2 × 5.8 in

Weight

4 kg / 8.8 lbs

0.5 A

on/off times:
6 min/6 min

on/off times:
2 min/6 min

Maximum test voltage

12 kVrms (≥ 50 Hz)

Dimensions (W × H × D)

455 × 275 × 220 mm /
17.9 × 10.8 × 8.7 in

Weight

36 kg / 79.4 lbs

CP CB2 – Current booster

CPOL2 – Polarity checker

The CP CB2 is an current booster for applications
requiring currents up to 2000 A.

The CPOL2 can check the correct polarity along the
different connection points in an instrument transformer's
secondary wiring.

Output current

up to 2 000 A

Output power at 2 000 A

5 kVA

Measuring range

250 μVrms ... 300 Vrms

Accuracy of current at 50 Hz / 60 Hz Error < ± 0.13 % (rd) ± 0.13 % (fs)

Evaluated signal form

Polarity test signal with slope ratio ≥ 3:1

Phase tolerance at full scale

Error < ± 0.25 %

Nominal frequency

52.6 Hz

Dimensions (W × H × D)

186 × 166 × 220 mm
7.3 × 6.5 × 8.7 in

Power consumption

Measurement active: < 100mW
Standby: < 50 μW

Weight

16.0 kg / 35.3 lbs

Input impedance

> 300 kΩ

Batteries

Type and number:
2 × 1,5 V Mignon LR6 AA AM4 MN1500

Dimensions (W × H × D)

180 × 55 × 35 mm / 7.1 × 2.2 × 1.4 in

Weight

150 g / 0.33 lb

CP RC – Compensating reactor
The CP RC resonance circuit units in combination with
the CPC 100 can be used for voltage withstand testing
of gas-insulated switchgears (GIS).
CP TR7 / CP TR8

CP CR4 /CP CR6

CP AT1

Voltage output

180 V1/ 220 V

220 V

254 V - 278 V

Current output

60 A

150 A

16 A

Apparent power on 13.2 kVAr
secondary side

33 kVAr

4.4 kVAr

Frequency

80 Hz ... 120 Hz

50 Hz / 60 Hz

Insulation class

Weight

19 kg / 42 lbs

20.5 kg / 45 lbs

15.5 kg / 34 lbs

Dimensions
(W × H × D)

262 × 277.5 × 222 mm / 10.31 × 10.9 × 8.74 in

Ordering information
CPC 100 Packages
Package

Description

Ordering No.

CPC 100 Basic Package

Package including CPC 100 and all accessories to perform basic
checks on primary assets.

VE000601

CPC 100 Standard Package

Package including CPC 100 and all accessories to perform
VE000611
common electrical tests on instrument and power transformers.

includes CPC 100 Basic Package

In addition to the standard package powerful tools for
substation comissioning are provided.

VE000621

CPC 100 Transformer Test System

Package including CPC 100, CP TD1 and all accessories to
perform common electrical tests and power/dissipation factor
measurements on power transformers.

VE000645

CPC 100 Line Impedance Test System

Package including CPC 100, CP CU1, CP GB1 and all accessories
to perform impedance measurements for determination of
distance protection relay settings.

VE000602

CPC 100 Rotating Machines
Test System

Package including CPC 100, CP TD1, CP CR500 and all
accessories to perform common electrical tests and power/
dissipation factor measurements on rotating machines.

VE000648

CPC 100 PF/DF Test System

Package including CPC 100, CP TD1 and all accessories to
perform power/dissipation factor measurements on all assets.

VE000640

CPC 100 Enhanced Package
includes CPC 100 Standard Package

CPC 100 Standard Package

Ordering information
CPC 100 Upgrade Options
Package

Description

Ordering No.

CP TD1 Upgrade Option

Upgrade option to expand your existing CPC 100
to a power/dissipation factor test system.

VE000641

CP CB2 Upgrade Option

Upgrade option allowing test currents of up to 2000 A
in conjunction with the CPC 100.

VEHZ0630

CP SB1 Upgrade Option

Upgrade option to expand your existing CPC 100 standard
package to a fully automated transformer test system.

VEHZ0692

CP CU1 and CP GB1 Upgrade Option

Upgrade option to expand your existing CPC 100
to a line impedance measurent test system.
Note: CP sequencer test card has to be ordered separately
(order no. VESM0635)

VEHZ0671

Ground Impedance and
Step & Touch Voltage Set

Package to measure ground impedance and step and touch
voltages of substations. Including handheld grounding tester
HGT1 and accessories.

VEHZ0708

CPC Sync Upgrade Option

Upgrade option including the TRC1 which allows
synchronizing up to three CPC in order to create
a powerful source for HV applications.

VEHO0648

Upgrade option including the TRC1 which allows
synchronizing up to three CPC in order to create
a powerful source for HV applications.

VEHO0649

for existing CPC

CPC Sync Upgrade Option
for new CPC

CPC 80

Slave unit including accessories for synchronization of CPCs.
Note: Only CPC 100 can be used as master and slave unit.

VE000649

CP RC1 Upgrade Option

Upgrade option for high voltage testing on gas-insulated
switchgear (GIS) up to 123 kV rated voltage.

VEHZ0760

CP RC2 Upgrade Option

Upgrade option for high voltage testing on gas-insulated
switchgear (GIS) up to 145 kV rated voltage.

VEHZ0770

CPC 100 Upgrade Options
Package

Description

Ordering No.

CPOL2 Upgrade Option

Upgrade option to check polarity of a CT's or VT's
secondary wiring.

VESM0645

CP TC12 Upgrade Option

Upgrade option for determination of power/dissipation factor
and permittivity of insulaton liquids, e.g. transformer oil.
It is used in conjuction with the CPC 100 and the CP TD1.

VEHZ0601

CP DB1 Upgrade Option

Upgrade option for faster discharging after a winding
resistance measurement on a power transformer.

VEHZ0695

CP CR500 Upgrade Option

Upgrade option for power/dissipation factor measurements
on rotating machines in conjuction with the CPC 100 and
the CP TD1.

VEHZ0604

PTM advanced Upgrade Option

Upgrade option to operate your CPC using the guided
workflow, depending on available software licences.

VESM0671

PTM advanced for HGT1
Upgrade Option

Upgrade option for the Ground Impedance and Step & Touch
Voltage Set to use the guided PTM workflow with your HGT1.

VESM0626

PTM DataSync "OnPremises"
Upgrade Option

Separate module for data synchronization and back-up:
For up to 3 users
For up to 10 users
For up to 25 users
Upgrade for 1 user

VESM0677
VESM0678
VESM0679
VESM0680

PTM DataSync "Cloud"
Upgrade Option

Separate module for data synchronization and back-up:
For up to 3 users
For up to 10 users
For up to 25 users
Upgrade for 1 user

VESM0681
VESM0682
VESM0683
VESM0684

A strong and safe connection
Welcome to the team
At OMICRON you can always depend on an experienced team that actively
supports you and an infrastructure that you can rely on. We always listen
attentively in order to understand your needs so that we can offer you the best
possible solutions. We strive for lasting partnerships and ensure that you can
continue to rely on your product long after you've purchased it. In order to
do this, we focus on quality, the transfer of knowledge and unique customer
support.
Don, Wenyu and Christoph are able to tell you about the services we have
available for you and why it pays to be part of the team.

Don Platts
Application Specialist

Solutions you can rely on...
... developed with experience, passion and an innovative approach that we use to
continually set groundbreaking standards in our industry sector.
We invest more than 15 % of the total turnover in research and development so
that we can even guarantee the reliable use of the latest technology and methods
in the future.
Our comprehensive product care concept also guarantees that your investment in
our solutions – like free software updates – pays off in the long term.

Wenyu Guo
OMICRON Academy

We share our knowledge...
… by maintaining a constant dialogue with users and experts. Some examples
of this are our customer events and conferences that take place all over the
world and our collaboration with numerous standardization committees.
We also make our knowledge available to you in the customer section of our
website in the form of application reports, specialized articles and articles in
the discussion forum. With the OMICRON Academy, we also provide a wide
spectrum of training possibilities and assist you with Start-up training and free
webinars.

Christoph Engelen
Technical Support

When rapid assistance is required...
… our excellent level of support is always appreciated. You can reach the highlyqualified and committed technicians in our customer support department 24 hours
a day, seven days a week – and it's completely free. We deal with repair services and
service features in a fair and non-bureaucratic manner.
We can help minimize your downtime by lending you equipment from a readily
available plant at one of our service centers in your area. A comprehensive offer of
services for consulting, testing and diagnostics completes our range of services.

OMICRON is an international company serving the electrical power industry with
innovative testing and diagnostic solutions. The application of OMICRON products
allows users to assess the condition of the primary and secondary equipment on
their systems with complete confidence. Services offered in the area of consulting,
commissioning, testing, diagnosis and training make the product range complete.
Customers in more than 140 countries rely on the company’s ability to supply leadingedge technology of excellent quality. Service centers on all continents provide a broad
base of knowledge and extraordinary customer support. All of this together with our
strong network of sales partners is what has made our company a market leader in the
electrical power industry.

The following publications provide further information on the solutions described in this
brochure:

Diagnostic Testing

CP CU1

Primary Test Manager™ (PTM)

Coupling unit for line and ground testing

Testing and management software for primary assets

CP CU1 Brochure

Solutions for Power

Primary Test Manager™
(PTM) Brochure

Transformers Brochure

For more information, additional literature, and detailed contact information of our
worldwide offices please visit our website.

www.omicronenergy.com

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CPC 100 Manual Brochure ENU 1

CPC-100-Manual-Brochure-ENU CPC-100-Manual-Brochure-ENU