TDK-Lambda Vega 650 Instrucciones De Uso página 20

Vega 650 Handbook
Cooling Options:
Cooling Option
F & D
(Standard or Ruggedized
Fan – Forward Airflow)
R, E
(Standard or Ruggedized
Fan – Reverse Airflow)
Q
(Quiet Fan – Forward
Airflow)
P
(Quiet Fan – Reverse
Airflow)
C
(Customer Airflow)
Ruggedised fan (Papst 622HH) not for use with PSU's fitted with IEC Inlet.
Customer Air Cooling (option C):
The following method must be used for determining the safe operation of PSUs when C option (Customer Air) is
fitted, ie fan not fitted to PSU.
For PSUs cooled by customer supplied airflow the components listed in the following table must not exceed the
temperatures given. Additionally ratings specified for units with an internal fan must still be complied with, eg mains
input voltage range, maximum output power, ampere turns, module voltage / current ratings and maximum ambient
temperature. To determine the component temperatures the heating tests must be conducted in accordance with
the requirements of the safety standard being considered for the end equipment.
Test requirements include: PSU to be fitted in its end-use equipment and operated under the most adverse
conditions permitted in the end-use equipment handbook/specification and which will result in the highest
temperatures in the PSU. To determine the most adverse conditions consideration should be given to the
end use equipment maximum operating ambient, the PSU loading and input voltage, ventilation, end use equipment
orientation, the position of doors & covers, etc. Temperatures should be monitored using type K fine wire
thermocouples (secured with cyanoacrylate adhesive, or similar) placed on the hottest part of the component (out of
any direct airflow) and the equipment should be run until all temperatures have stabilised.
Circuit Ref.
-
T1, TX101, TX201
XQ1, XT1
XTR1
TX1
L1, L2, XT601
L4, T2
Various
RLY1
C15
Various
Max Dual Width
Ambient Modules
(°C) Fitted
50
Yes
40
Yes
45
Yes
50
Yes
Yes
50
Yes
40
Yes
45
Yes
50
Yes
Rating determined by customer subject to a max power
50
Description
Power transformer primary, secondary and core
Module current transformer windings
D, E, EV, F & FV Primary option transformers
EY, FY, EV & FV Primary option transformers
xEW & xFW Primary option transformers
Choke winding
Choke winding
All other choke & transformer windings
Relay
X capacitor
All other X and electrolytic capacitors
Max
Power (W)
No 650
650
No 530
550
No 500
500
No 440
420
No 550
550
No 650
650
No 440
500
No 400
420
No 350
370
of 650W and 220AT
Page 20 of 35
Module
Max AT Current
(total) Rating (All
Modules)
220 100%
220 100%
212 100%
212 90%
200 100%
212 90%
176 100%
212 90%
180 100%
180 100%
145 100%
145 95%
176 100%
203 85%
160 100%
203 85%
140 100%
184 85%
Max. Temperature (°C)
130
127
90
90
130
110
117
110
100
100
105
17137 issue 37, Sept 2019