S&C Vista Series, Instruction Sheet

Page: 15 / 27

S&C Instruction Sheet 681-510 15
Operation
Resetting a Fault Interrupter After a Trip
Operation
WARNING
Make sure to complete pre-operational checks shown
on pages 9 and 10 prior to operation. Failure to do so
can result in equipment damage and personal injury.
STEP 1.
Make sure Steps 1 through 3 on pages 9 and 10
are completed.
STEP 2. Insert the manual operating handle into the
notch of the operating mechanism.
STEP 3.
Rotate the manual operating handle in the
counterclockwise direction to the
Open
position to move the blade to the Open position
and reset the operating mechanism. See Figures
23 and 24. When operating from the
Closed to
the Open position, the operating handle must
be rotated all the way to the Stop position, as
shown on the label, to recharge the mechanism.
See Figure 25. For three-pole fault interrupters,
the operating handle cannot be removed until
the mechanism is fully charged.
STEP 4.
Open the viewing window cover again and
confi rm the position of the load-interrupter
switch or fault interrupter by visually observing
the position of the blades.
STEP 5. To operate the fault interrupter to the
Grounded or Closed positions, follow the
corresponding procedures on page 12 or
page 14.
Figure 23. Rotate operating handle counterclockwise to the
Open position.
Figure 25. The fault interrupter in the Open position.
Figure 24. Rotate all the way to the Stop position.
Stop position