S&C PureWave Operation And Maintenance page 24

Operation
24 S&C Instruction Sheet 658-500
Non-standard Bypass Procedure: The following procedure will cause an outage to
the end user. The proceeding steps should be done only when the voltage readings of
Steps 2 or 3 of the Normal Bypass Procedure reads higher than 10 volts.
1. On the control panel, turn the selector switch fully clockwise to the "REMOVE FROM
SERVICE" position. With the selector switch in that position, the AC breaker and DC
breaker should both be open.
2. De-energize the source to the PureWave CES, typically by removing the fuse (or open-
ing the fuse cutout) from the associated transformer.
3. Confirm that there is no voltage on the source or load side of the unit by measuring
the voltages between
a. "Source Line 1" to neutral,
b. "Source Line 2" to neutral,
c. "Load Line 1" to neutral, and
d. "Load Line 2" to neutral.
4. Install discharge jumper and wait until the voltage is zero.
5. Take the "Source Line 1" cable and the "Load Line 1" cable and bolt them together.
Insulate the bolted cables.
6. Take the "Source Line 2" cable and the "Load Line 2" cable and bolt them together.
Insulate the bolted cables.
7. Re-energize the source typically by replacing the fuse to the associated transformer.
This restores service to the interrupted end-users.
8. Proceed with the work planned.