TM 5-6115-465-34
TO 35C2-3-446-2
NAVFAC P-8-625-34
TM 06858B/06859D-34
CHAPTER 5
GENERATOR REPAIR INSTRUCTIONS
Section I. CONVENIENCE AND PARALLELING RECEPTACLES AND WIRING HARNESS
5-3.
5-1. G E N E R A L .
CONVENIENCE AND PARALLELING
RECEPTACLES WIRING HARNESS.
All models of the generator set are equipped
a.
Refer to the Operator and Organizational
with a 125 volt, 15 amp convenience receptacle. The
a.
Maintenance Manual for convenience and paralleling
receptacles equipped with a spring loaded weather
receptacles wiring removal, cleaning, inspection,
cover and protected by a 15 amp circuit breaker,
and repair instructions.
b. The paralleling receptacles permit intercon-
nection of the voltage regulator assemblies of two or
b. If the wiring harness has sustained damage
more generator sets for parallel operation. They
and requires repair or rebuild, refer to figure 5-1
are part of the convenience and paralleling recept-
for layout, identification, and material requirements
acles wiring harness.
and Appendix A for detailed soldering and replace-
ment procedures.
5-2. CONVENIENCE RECEPTACLE AND
CIRCUIT BREAKER.
Refer to the Operator and Organizational Main-
c. Refer to the Operator and Organizational
tenance Manual for convenience receptacle and cir-
Maintenance Manual for installation instructions for
the wiring harness.
cuit breaker maintenance instructions.
LOAD CONNECTION GROUP
Section II.
5-4.
phase pass through a three-window current trans-
GENERAL.
former. The proportional current induced in the
transformer is used by the static exciter and voltage
a. The load connection group consists of the
voltage reconnection board, the main load contactor,
regulator assembly as a current boost. The leads
the load terminal board, and the current trans-
then pass through a second three-window transformer.
formers.
The proportional current induced in this transformer
is used in the load measuring unit and the ammeter
b. The voltage reconnection board consists of
and watt-meter circuit of the control cubicle. The
a stationary terminal board and a movable link-type
leads of two of the generator phases then pass through
a single-window crosscurrent transformer. The cur-
board. It provides a means of connecting the two
coils of each phase of the generator assembly to pro-
rent induced in the crosscurrent transformer is used
vide all specified output voltages. Simultaneously, it
for reactive power compensation during parallel
reconnects all other circuits necessary to convert
operation. Local voltage sensing and adjustment are
accomplished across a single coil of the remaining
the generator set from 120/208 to 240/416 Vac
operation.
phase.
c. The voltage reconnection board is connected
5-5.
VOLTAGE RECONNECTION BOARD ASSEMBLY
to the load terminal board through a three-pole
three-phase main load contactor. This contactor is
controlled by the circuit breaker switch of the con-
Refer to the Operator and Organizational Mainten-
trol cubicle assembly. The main load contacts will
ance Manual for voltage reconnection board assembly
automatically open when any of the protective de-
removal, maintenance, and installation procedures.
vices actuate or when the START-RUN-STOP switch
is placed in the STOP position.
5-6. MAIN LOAD CONTACTOR.
a. Removal.
d. One lead of each of the two coils of each gen-
erator phase is connected directly to the voltage re-
(1) Remove screws (1, figure 5-2), lockwashers
connection board. The remaining two leads of each
(2), and flat washers (3) to remove terminal covers (4).
5-1
