S&C Instruction Sheet 766-540 11
Operating Levers and Indicators
Figure 8. The Hot Line Tag mode manually applied and “tagged.”
The
Ground Trip Block
mode can be set locally with the GROUND TRIP BLOCK lever
or remotely using a SCADA or IntelliLink software command. The
Ground Trip Block
mode can only be removed by the method used to set it and (unlike the
Hot Line Tag
mode) the manual lever cannot remove the
Ground Trip Block
mode set by SCADA or
IntelliLink software.
To locally apply the
Ground Trip Block
mode, pull down on the GROUND TRIP
BLOCK lever. It can be tagged using conventional procedures. To remove a locally applied
Ground Trip Block
mode, push up on the GROUND TRIP BLOCK lever. When the
Ground
Trip Block
is either set or removed, the STATUS indicator will light at 100% brightness for
10 seconds to indicate the GROUND TRIP BLOCK lever command has been received.
See Figure 9 on page 13.
Manual Ground Trip
Block (if furnished)
Clearing a Manually Applied Hot Line Tag
Follow these steps to clear a manually applied
Hot Line Tag
mode:
STEP 1.
Remove the tag or lock on the HOT LINE TAG lever, if applicable.
STEP 2.
Insert the hookstick into the ring on the HOT LINE TAG lever and push up on
the lever.
STEP 3.
Observe the amber HOT LINE TAG indicator. When the
Hot Line Tag
mode is
cleared, the HOT LINE TAG indicator will be off.
