TM 55-1730-229-12
TO 35C2-3-473-1
Indication
Fault Lamp
Fault
(latched)
Indication
Protective
Voltage/
Current for CURRENT LIMIT SELECTOR
After
During
Action
Switch Settings
Fault
Fault
Voltage
>50
>110
>170
None (see
None
None
Normal
<191
<191
<191
note)
(108-118
UNDER
Field
vrms)
VOLTAGE
excitation
after 5
OVER
removed
>191
>191
>191
>191
second
CURRENT
after 30
delay
seconds
AC
= or<50
= or<110
= or<170
=or<259
Voltage
contactor
None
>50
>110
>170
<108 vrms
UNDER
opened
<191
<191
<191
VOLTAGE
after 4-7
OVER
>191
>191
>191
>191
seconds
CURRENT
Voltage
AC
OVER
>108 vrms
None
contactor
VOLTAGE
opened
UNDER
AC
<375 Hz
None
FREQUENCY
contactor
opened
Note: When voltage is within normal limits and output power is less than 66 KVA,
the generator will continue to operate regardless of the CURRENT LIMIT SELECTOR
switch setting. The GCU will reduce field excitation to reduce generator voltage
as current increases above the selected limit. The voltage will drop below the
normal limit (104 4 vac) and the GCU will open the AC contactor when current
exceeds the values listed.
Note:
> indicates greater than, < indicates less than.
Change 8
4-212.1/(4-212.2 blank)
