33
PowlVac
®
Electrically-Operated Ground and Test Device
IB-65060
D. PROCEDURE FOR REMOVING GROUNDS
The CON EDISON and CUSTOMER ground and
test devices are supplied with similar interlock
functions. However, the CON EDISON device
uses key KU for key lock K1, and the CUSTOMER
device uses key KCF for key lock K1. Key KU and
Key KCF are NOT INTERCHANGEABLE.
Although these operating procedures contain illustra-
tions of the CON EDISON device, these procedures
also apply to the CUSTOMER device. For proce-
dures that refer to key KU for the CON EDISON
device, the same procedures apply to key KCF for
the CUSTOMER device.
Perform the following steps:
1.
Obtain key KB from the Con Edison lock box on
premises.
2.
Insert key KB to key lock K1 and rotate (Figure
90). The ground and test device control circuit is
now enabled. Key KB is captive and key KU is
available (Figure 91).
3.
Verify that the Control Selector Switch is in the
OFF position (Figure 92).
4.
Connect the umbilical cord of the Remote Oper-
ating Station to the ground and test device
(Figure 93). Turn the plug clockwise to lock.
5.
Connect the compartment secondary disconnect
to the receptacle on the ground and test device
umbilical cord (Figure 94).
6.
Move the Control Selector Switch to the OPEN
position (Figure 95).
7.
Turn the Remote Operating Station ON and
depress the OPEN push button switch on the
Remote Operating Station to open the ground
and test device (Figure 96).
8.
Move the Control Selector Switch to the OFF
position (Figure 97).
9.
Turn the Remote Operating Station OFF and
disconnect the Remote Operating Station umbili-
cal cord from the ground and test device (Figure
98).
10. Rotate key KU in key lock K1; the ground and
test device is now electrically disabled (Figure
99). Key KU is captive and key KB is available.
11. Insert key KB into key lock K2 and rotate key KC
(Figure 100). The ground and test device is now
mechanically locked in the OPEN position. Key
KB is captive and key KC is available.
12. Transfer key KC to key lock K3 and rotate. Pull
the racking access interlock handle fully out
(Figure 101). The ground and test device
racking slot is now unlocked.
13. Depress the manual trip operator on the
switchgear compartment front panel and open
the racking access shutter (no figure provided).
14. Install the racking handle into the compartment,
and rotate the handle counterclockwise to move
the ground and test device into the DISCON-
NECT position as indicated on the position
indicator. Remove racking handle (no figure
provided).
15. Push the racking access interlock handle in fully.
Rotate key KC to lock the ground and test device
in the DISCONNECT position. Key KC is now
available (Figure 102).
16. Transfer key KC to key lock K2 and rotate. The
key KC is now captive and key KB is available
(Figure 103).
17. Transfer key KB to key lock K1 and rotate
(Figure 104). Key KB is captive and key KU key
is available.
18. Remove the ground and test device from the
compartment (no figure provided).
19. Remove key KU from key lock K1 (Figure 105).
20. Secure key KU in the Con Edison lock box.
