TP-6835 9/17
55
Section 7 Bypass, Isolation, and Manual Transfer
7.2.2
Isolating the Transfer Switch,
150--600 Amp Models
Isolate the transfer switch before performing any service
work on the automatic transfer switch (ATS). Refer to
Figure 7-15 through Figure 7-18.
1. Bypass the closed automatic transfer switch
contacts. See Section 7.2.1, Bypassing ATS.
2. Turn the Isolation Handle counterclockwise
(approx. 8 turns) until window shows
TEST
. See
Figure 7-15 and Figure 7-16. The
TS Test
amber
light should come on (Figure 7-16). The ATS can
be tested now without load interruption.
Note:
In the TEST position the transfer switch solenoid
operator circuit is energized through secondary
disconnects.
Position
window:
CONN
TEST
ISOLATE
Counterclockwise draws
out the transfer switch
Figure 7-15
Isolation Handle Turned to TEST
Turn crank
counter-
clockwise
until window
shows TEST.
E
L
N
Automatic Transfer Switch
Bypass Switch
TS CONNECTED
Middle amber light
should be on.
TS TEST
TS ISOLATED
Figure 7-16
CONNECTED to TEST position
Summary of Contents for KBC
Page 26: ...TP 6835 9 17 26 Section 2 Installation Notes...
Page 44: ...TP 6835 9 17 44 Section 4 Communication and Accessory Connections Notes...
Page 48: ...TP 6835 9 17 48 Section 5 Functional Tests and Setup Notes...
Page 50: ...TP 6835 9 17 50 Section 6 Scheduled Maintenance Notes...
Page 76: ...TP 6835 9 17 76 Section 7 Bypass Isolation and Manual Transfer Notes...
Page 79: ......
