T O 35C2-3-442-2
Section VIII. RECONNECTION BOARD ASSEMBLY, LOAD CONTACTOR, MOTOR
OPERATED CIRCUIT BREAKER ASSEMBLY, LOAD BOARD ASSEMBLY,
AND TRANSFORMER ASSEMBLY
or circuit breaker assembly are connected to
the load terminal board where the load is el-
e ctrically tonne cted. The load terminal board
The reconnection board assembly,
has four terminals which are marked L1, L2,
load contactor, load bus bars, load board
L3, and LO, respectively. Terminals L1, L2,
and L3 are connected through cable, bus bars,
located on the right side of the generator.
and the load contactor or circuit breaker
The motor operated circuit breaker assembly,
assembly to generator output leads T1, T2,
used in place of the load contactor on 400
and T3, respectively. The load contactor also
hertz generator sets, is located on the left
contains auxiliary dc contacts and a connector
side of the generator.
for connection of these auxiliary contacts in
the generator set electrical system.
a . The voltage reconnection system per-
mits reconnection of the generator phase wind-
6-137. RECONNECTION BOARD
ings to provide 120/208 or 240/460 output
voltages. One end of each coil of each phase
winding runs from the generator through an
remove reconnection board assembly as
assures current sensing in each phase re-
a . Remove protective cover (3) by re-
gardless of voltage connection at the recon-
moving loosening studs (1).
nection board assembly. The reconnection
board assembly is equipped with a voltage
b . Remove brackets (6 and 7) by re-
change board to permit easy conversion to
moving screws (4) and nuts (5).
12 0/208 or 240/416 generator output voltage.
Positioning of the voltage change board con-
c . Remove support bracket (8) by re-
nects two coils of each phase in series or
moving screws (28), lock washers (29),
parallel. In parallel the output is 120/208,
and washers (30).
in series the output is 240/416 VAC. The
terminals on the reconnection board assembly
for connection to the generator loads are
Tag electrical leads with loca-
numbered according to the particular coil end
tion to insure proper installation.
of each phase of the generator to ensure pro-
d. Remove nuts (9), washers (10), elec-
trical leads (11), and bus bars (12) from
b. The output terminals at the recon-
reconnection board assembly (13).
nection board assembly are connected to the
load contactor through bus bars or to the
circuit breaker with cable assemblies. The
6 - 1 3 9 . DISASSEMBLY. Refer to figure
Ioad contactor and circuit breaker have
6-37 and disassemble reconnection board
three main contacts within it which serve to
assembly in the order of index numbers
connect or disconnect the load from the
assigned. Pay particular attention to the
generator 3 phase, 4 wire, Y connected
output . Three cables from the load contactor