Kohler 1250-2250 kW, Операция

Страница: 43 / 76

TP-6161 1/12 43 Section 5 Generator Set Reconnection
Section 5 Generator Set Reconnection
To change the voltage of 10- or 12-lead generator sets,
use the following voltage reconnection procedure.
Adjust the governor and voltage regulator for frequency
changes. Consult the generator set service manual for
frequency adjustment information.
Voltage reconnection. Affix a notice to the generator set
after reconnecting the set to a voltage different from the
voltage on the nameplate. Order voltage reconnection
decal 246242 from an authorized service distributor/
dealer
.
Equipment damage. Verify that the voltage ratings of
the transfer switch, line circuit breakers, and other
accessories match the selected line voltage.
Accidental starting.
Can cause severe injury or death.
Disconnect the battery cables before
working
on the generator set.
Remove the negative (--) lead first
when
disconnecting the battery.
Reconnect the negative (--) lead last
when reconnecting the battery.
WARNING
Disabling the generator set. Accidental starting can
cause severe injury or death. Before working on the
generator set or equipment connected to the set, disable the
generator set as follows: (1) Turn the generator set master
switch and switchgear engine control switch to the OFF
position. (2) Disconnect the power to the battery charger.
(3) Remove the battery cables, negative (--) lead first.
Reconnect the negative (--) lead last when reconnecting the
battery. Follow these precautions to prevent the starting of the
generator set by an automatic transfer switch or a remote
start/stop switch.
Disabling the generator set. Accidental starting can
cause severe injury or death. Before working on the
generator set or connected equipment, disable the generator
set as follows: (1) Move the generator set master switch to the
OFF position. (2) Disconnect the power to the battery charger.
(3) Remove the battery cables, negative (--) lead first.
Reconnect the negative (--) lead last when reconnecting the
battery. Follow these precautions to prevent starting of the
generator set by an automatic transfer switch, remote
start/stop switch, or engine start command from a remote
computer.
Hazardous voltage.
Can cause severe injury or death.
Operate the generator set only when
all guards and electrical enclosures
are in place.
Moving parts.
WARNING
Short circuits. Hazardous voltage/current can cause
severe injury or death. Short circuits can cause bodily injury
and/or equipment damage . Do not contact electrical
connections with tools or jewelry while making adjustments or
repairs. Remove all jewelry before servicing the equipment.
Reconnect the generator set stator leads to change the
output phase or voltage.
Refer to the following
procedure and the connection schematics shown in
Figure 5-1, Figure 5-2, Figure 5-3, and Figure 5-4
Follow the safety precautions at the front of this manual
and in the text and observe National Electrical Code
(NEC) guidelines.
Voltage Reconnection Procedure
1. Place the generator set master switch in the
OFF/RESET position.
2. Disconnect the generator set engine starting
battery, negative (--) lead first. Disconnect power to
the battery charger (if equipped).
3. Use Figure 5-1, Figure 5-2, Figure 5-3, and
Figure 5-4 to determine the generator set voltage
configuration.
Note the original voltage and
reconnect as needed. Route leads through current
transformers (CTs) and connect them according to
the diagram for desired phase and voltage.
Note: Position current transformers CT1, CT2,
and CT3 with the dot or HI side toward the
generator set.