.橡.PDP006v2 Display Power Consumption

PDP006-Ver02 to the manual 8e569427-e2b3-49fb-931d-b2af21bdc185

User Manual: - Display Power Consumption

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PDP SE Referencece
No.PDP006-Ver02
*Plasma Display Panel Division
*TV System Products Division
*Overseas Solution Business Dept.

POWER CONSUMPTION
OVERVIEW
Power Consumption-related items are described for installation of a plasma display.

RUSH CURRENT

HEAT COOLING
* PDP operation conditions
Temperature: 0 deg – 40 deg Humidity : 20% - 80%(not dewing)

TH-42PWD5 for example:
Input resistance 3.4 ohm in US model

* Method of choosing a cooling fan

Soft start relay

● Operating airflow rate needed for cooling (Q’)

TH-42PWD5 US model I=120Vx1.41/3.4 ohm= 49.8 [A]
If power is ON where a sine wave voltage is 0V, a rush current is
0 to maximum 49.8[A].
* TH-42PWD5 except US I=240Vx1.41/6.8 ohm= 49.8 [A]
* TH-50PHD5 US model I=120Vx1.41/6.8 ohm= 24.9 [A]
l

A rush current is an instantaneous large current flowing at a time of
Power ON and depends on an input resistance of power supply circuit
(in parallel with a soft start relay).

MAXIMUM POWER CONSUMPTION & CURRENT
* Maximum Power Consumption
The power Consumption values described on the catalog resulted from
the measurement of power Consumption for a certain sound and
image for European models. The PDP must make every pixel
discharge light repetitively on a not-constant base, thus resulting in a
huge value of power Consumption.(US models)

* Maximum Current
Current can be normally found by the formula: Current A = Power P ÷
Voltage V, but it depends heavily on the power factor of a power
circuit.

*Values of the existing models
TH-50PHD5
TH-42PHD5
TH-42PWD5
TH-37PWD5

Power
Consumption
495W
375W
295W
225W

Max. Power
Consumption
Approx. 550W
Approx. 450W
Approx. 395W
Approx. 325W

Power
Factor
100％
100％
75％
70％

Max. Current (Approx.)

AC100v
5.5A
5.0A
5.3A
4.4A

AC200v
2.8A
2.5A
2.7A
2.2A

20x [Temp inside the housing case - Housing case ambient Temp）

NOTICE:※ The formula is based on the assumption that heat eradication is
done by a cooling airflow of a fan.
● Choice of a fan
Since the operating airflow is generally 1/2 to 2/3 the maximum
airflow, it is recommended that you choose the fan 1.5 to 2.0 times
the calculated airflow Q’.
Assuming that an operating airflow is 2/3 the maximum airflow, the
maximum airflow Q[m3/min]=Q’ x 3/2.
: Calculation example for placing TH-42PWD4 inside the housing:
* Power Consumption
：295W
*Temp inside Housing

：Need to be below 40 deg

*Ambient Temp

：35 deg (example)

*Operating airflow

：2/3 the maximum airflow

Q’ = 295 / [ 20x(40-35) ) = 2.95 [m 3/min]
Q = 2.95 x 3/2 = 4.425 [m3/min]
Heat tends to focus on the upper part. A fan had better be placed to
ventilate this area.
Example) Two fans whose maximum airflow is 2.3[m 3/min]
or 3 fans whose maximum airflow is 1.5[m 3/min.]

Ambient temp. =30 deg: Q’ = 1.48m3/min.
１J=0.24cal

Calorific value per hour[Kcal/H] = 0.24xPowerConsumptionx3600
=Power Consumptionx0.864
* TH-42PWD5UY = 295Wx0.864 = 255[Kcal/H]

British Thermal Units VALUE
British Thermal Units = Power Consumption [W] × 3.41 = [BTU/h]
* TH-42PWD5UY = 295 W × 3.41 = 1,006 BTU/h

PDP Power Consumptio n

Q’ [m3/min] =

(Example) Ambient temp. =25 deg: Q’ = 0.98m3/min.

CALORIFIC VALUE
Calorific Value[J]=Power Consumption[W]xTime[S]

NOTICE: When it exceeds the above range, you have to consider cooling.

* Other cautions
* Never fail to attach the fan the PDP inside.
* The values mentioned above are the theoretical ones. You
are required to make enough tolerance in actual design and
to perform a mounting experiment at the time of studying.
* When you study the outdoor use, you have to take into
account the heat inflow from outside such as solar heat.
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