Current Power Supply In A.C. EMU 100 MCB Circuit Breaker Er User Manual Brochure

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User Manual: EMU-100-MCB-Circuit-Breaker-er-User-Manual-Brochure

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GAMA_EMU EN v2_SMC fichas 17/09/12 15:14 Page 1
EMU RANGE
Current Power Supply in A.C.
DESCRIPTION
The EMU is a completely electronic unit. The following gives more details of this testing unit:
•Complete computer control with its corresponding software and comunication board, RS-485. The program has
the possibility to control up to 20 units at the same time.
•The unit generates a digital wave form, from a oscillating quartz and adjust this wave in 1024 point/cycle which
insures the exact frequency and very low distortion.
•The reference amplitude in d.c. and the selection by a DAC of 12 bits, allows a continued feedback, comparing
the output level with the reference and activates a signal which controls the power amplifier, to insure a perfect
stabilized and accurate output, even though there are variations in the load, power supply, etc.
•The power module is compact, with forced ventilation and contains an auto power switch which gives the
maximum power required in relation to the load. This achieves a very efficient output and low dissipation.
•The transformer load coupled to the power amplifier, allows an galvanic insulation and perfect joining of this
load.
•Computer control of an external element up to 220V (ex. auxiliary contact).
•Synchronizes the output wave in phase and/or frequency with respect to external signals (external
frequency/phase reference).
•The unit contains an output overload, thermal, and auxiliary power supply alarms as well as a connector for an
d.c. measuring instrument, for easy verification.
FEATURES
The EMU-100 can function as a single instrument or can be connected in parallel with others of its kind. When
these units are connected in parallel, the current permitted is multiplied by the number of units connected.
•All tests are made automatically, by software, with serial port RS-485.
EMU-25
EMU-100
EMU-300
CHARACTERISTICS
– Nominal power: 300VA.
– Can be connected in parallel.
– Input for external phase and/or frecuency
reference.
– Computer controled by serial port RS-485.
– Overload, overheating alarm leds.
– Rack mounting 19” (482 mm).
– Accuracy: ±1%.
– Distortion: <1%.
APPLICATIONS
– To test small circuit breakers.
– Calibration of shunts and measurement
instruments.
– To test thermic relays which require a long
duration.
– Overheating test.
TECHNICAL SPECIFICATION
EMU-25 EMU-100 EMU-300
Voltage supply 220V ± 10% 50 Hz 1000VA
Current Output
(3 ranges)
0.4 A - 4 A
4 A - 15 A
15 A - 25 A
1.6 A - 16 A
16 A - 60 A
60 A - 98 A
4 A - 48 A
48 A - 180 A
180 A - 300 A
Nominal power
(3 ranges))
4 A - 81.5 V (325 VA)
15 A - 18.3 V (275 VA)
25 A - 9.0 V (225 VA)
55% / 82% / 100% W MAX.
16 A - 20.3 V (325 VA)
60 A - 4.6 V (275 VA)
98 A - 2.3 V (225 VA)
55% / 82% / 100% W MAX.
48 A - 6.8 V (325 VA)
180 A - 1.5 V (275 VA)
300 A - 0.75 V (225 VA)
55% / 82% / 100% W MAX.
Distortion <1%
Accuracy ±1% of the reading
Stabilizing time <3 s.
Connection/Disconnection
time (electronic) <1 ms.
Measurement Output 0 - 2 V dc
Accuracy Minimum: ±2% of the reading
Auxiliary contact
output (by Triac) 220V / 50 mA
Time measurement Starts with current injection.
Stops with output open.
Resolution 0.25 s
Accuracy minimum: ±0.01% of the reading ±0.25 s
External Frequency Input f in=1024xf out: optocoupled 5V.
f out: 45 - 65 Hz
External Phase Input (optocoupled 5V)
Dimensions Width: 482 mm/19” Height: 175 mm/7” Length: 370 mm/14”
Weight 30 Kg/75 lb.
Polígono industrial P-29, Calle Buril, 69 28400 Collado Villalba. Madrid (Spain).
Tels: +34 91 849 89 80 Fax: +34 91 851 25 53 www.eurosmc.com e-mail: sales@eurosmc.com
EuroSMC, S.A.
DISTRIBUTED BY:
Please note: Due to the continuous research and development by EuroSMC, specifications in this catalog may be changed without previous notice. EMUCCEN - Version 2
GAMA_EMU EN v2_SMC fichas 27/09/12 15:17 Page 2

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