S&C Mark VI, Instruction Sheet

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S&C Instruction Sheet 712-501
Circuit-Switcher Position Indication
Circuit-Switcher position can be determined in
one of three ways:
a . Locally, by visually verifying the position of
the integral disconnect . See Figure 1 .
b . Locally, via position-indicating lamps on the
Mark VI CS-1A Switch Operator (if fur-
nished) . See Figure 2 .
c . Remotely, via auxiliary position-indication
contacts furnished with the Circuit-
Switcher .
Circuit-Switchers may be in one of two
positions:
Open: The integral disconnect will be
open
and
the interrupters will be closed .
Closed: The integral disconnect will be closed
and the interrupters will be closed .
See the section titled “Understanding the
Interrupter Indicators” starting on page 7
for details on the function of the interrupter
indi cators .
NOTICE
The interrupter indicators only indicate
the state of the
interrupter contacts , and
DO NOT indicate the state of the entire
Circuit-Switcher . Verify the position of the
discon nect blades to determine the “OPEN”
or “CLOSED” status of the Circuit-Switcher .
Figure 1. Mark VI Circuit-Switcher with blades in the OPEN position.
Disconnect blades
Figure 2. Location of position-indicating lamps.
Position indicating lamps
Indicators