MIL-DTL-38195D
TABLE III. DC transformer-rectifier electrical values and limits. 1/
Minimum
Nominal
Maximum
Units
Rated load 2/
Continuous output at 28 VDC
200
Ampere
Current overload 3/
At 28 VDC for 5 minutes
250
300
350
Ampere
Current limit 4/
Self-limiting. At 28 VDC
250
300
350
Ampere
Output DC voltage
From no-load to full load and full load
0.5
1.0
1.5
Volts
regulation 5/
to no-load
Output ripple 6/
At 28 VDC
5
%
1/
See 3.10.2.
2/
See Table V, Test Number 31 and Table VI.
3/
See Table V, Test Number 32 and Table VI.
4/
See Table V, Test Number 33 and Table VI.
5/
See Table V, Test Number 34 and Table VI.
6/
See Table V, Test Number 35 and Table VI.
TABLE IV. Instruments, controls and other device electrical values and limits. 1/
Minimum
Nominal
Maximum
Units
Short circuit 2/
In the event set output current is short
1.5
Seconds
circuited either single phase or 3 phase
3/
Overload 4/
When the output current is 200
1
5
Seconds
percent of rated current 5/
Over-voltages 6/
When the set output voltage
1.5
Seconds
(line-to-neutral) increases to 134 ± 4
volts 7/
Under-voltages 8/
When the set output voltage
92
97
102
Volts
(line-to-neutral) decreases to 97 ± 5
volts (3 phase average) 9/
Under-frequency 10/
When the frequency of the set output
360
365
370
Volts
voltage decreases to 365 ± 5 Hz 11/
%
0.5
Instrument accuracy
AC Voltmeter
%
0.5
12/ 13/
DC Voltmeter
%
1.0
AC Ammeter
%
1.0
DC Ammeter
%
0.1
Frequency Meter
1/
See 3.10.3.
2/
See Table V, Test Number 16.
3/
This device shall trip the lead contactor as specified herein.
4/
See Table V, Test Number 17.
5/
This device shall trip the load contactor as specified herein.
6/
See Table V, Test Number 18.
7/
This device shall trip the load contactor as specified herein.
8/
See Table V, Test Number 18.
9/
This device shall trip the load contactor as specified herein.
10/
See Table V, Test Number 20.
11/
This device shall trip the load contactor as specified herein.
12/
The maximum allowable error (see 6.3.12) of the metering system.
13/
See Table V, Test Number 19.
18
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