Kohler KEP User Manual

TP-6745 7/10 15Section 1 Scheduled Maintenance
1.6 Service Disconnect Switch
Hazardous voltage.
Will cause severe injury or death.
Only authorized personnel should
open the enclosure.
DANGER
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
Servicing the transfer switch. Hazardous voltage can
cause severe injury or death. Deenergize all power sources
before servicing. Turn off the main circuit breakers of all
transfer switch power sources and disable all generator sets
as follows: (1) Move all generator set master controller
switches to the OFF position. (2) Disconnect power to all
battery chargers. (3) Disconnect all battery cables, negative
(--) leads first. Reconnect negative (--) leads last when
reconnecting the battery cables after servicing. Follow these
precautions to prevent the starting of generator sets by an
automatic transfer switch, remote start/stop switch, or engine
start command from a remote computer. Before servicing any
components inside the enclosure: (1) Remove all jewelry. (2)
Stand on a dry, approved electrically insulated mat. (3) Test
circuits with a voltmeter to verify that they are deenergized.
The two-position service disconnect switch disconnects
the normal source from the load, transfers to
emergency, and inhibits further transfer.
The service disconnect switch and utility disconnected
lamp are located on the enclosure door. See Figure 1-2
for the typical service disconnect switch location.
When the switch is in the SERVICE DISCONNECT
position, the controller display shows SERVICE
DISCONNECT and the utility disconnected lamp on the
enclosure door illuminates.
Important notes about service disconnect
operation:
D Service disconnect transfers to the emergency
source, disconnecting the load from the utility source
ONLY.
D On service entrance transfer switches, the line side
lugs are active at all times.
D The engine start signal is activated. The operator
must open the generator set circuit breaker and/or
disable the generator set to remove power from the
load.
D Further transfer is inhibited after transfer to
emergency.
D Moving the switch to the SERVICE DISCONNECT
position during a test or exercise sequence ends the
test or exercise sequence.
D Moving the switch to the SERVICE DISCONNECT
position during a prime power sequence ends the
sequence and designates the connected generator
set as the preferred source.
D Controller power is not disconnected. The service
disconnect procedure does not remove power from
the controller. To remove the controller for
maintenance or service, perform the service
disconnect procedure and then see Section 1.7 for
instructions to use the control circuit isolation switch
to remove power from the controller.
1
adv7708
1. Utility Disconnected lamp
2. Service disconnect switch
2
Figure 1-2 Service Disconnect Switch Location
(typical)

Kohler KEP Specifications

General

Brand	Kohler
Model	KEP
Category	Switch
Language	English