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®
15
Operation
IB-50022A
Ch 5 Operation
A. G
ENERAL
I
NFORMATION
The Con Edison ground and test device is
supplied with Key #1. Key #1 is used in either
Key Lock “A” or Key Lock “B” as specified.
The PowlVac® 15GT36ASADE-23 Electrically
Operated Ground and Test Device allows
selective testing of one, two, or all three phases
simultaneously.
To eliminate the testing of any phase, remove
the three (3) 5/16” - 18” x 3-1/2” Hex-Head
cap screws that attach the chosen primary
disconnect fingers to the phase support block
(Figure 2, e).
The disconnect finger assembly will slide off
the block and may be set aside for reassembly
upon completion of the required circuit testing.
B. O
PERATION
OF
THE
G
ROUND
AND
T
EST
D
EVICE
1) Procedures for Applying Ground Con Edison
Feeder
a. Verify the Con Edison ground and
test device is being inserted in the
compartment of the feeder to be
grounded.
b. Insert the ground and test device in
to the compartment until a “stop” is
encountered.
c. Open the transparent guard
(Figure 1, aa) and depress the manual
trip operator (Figure 1, o) and pull down
on the racking access handle
(Figure 1, m) exposing the racking input
shaft.
PowlVac
®
racking handles incorporate a
built-in torque limiting feature in the design
that prevents excessive force from being
applied to the PowlVac racking mechanism.
Use only PowlVac racking handles to connect
or disconnect the ground and test device.
CAUTION
CAUTION
!
d. Insert a PowlVac racking handle into the
racking input shaft (Figures 5 & 6).
e. Rack the G&T device into the
CONNECTED position. Rotate the
racking handle (Figure 6) clockwise
until a positive stop is felt or the torque
limiter of the racking handle operates.
f. Follow Con Edison safety procedures
to ensure that the lower high voltage
connections in the compartment are
deenergized.
g. Close the G&T device using the remote
control switch.
h. Rotate the key in Lock “A” electrically
disabling the G&T device (Figure 1, t).
Remove the key from Lock “A”. The G&T
is now electrically and mechanically
locked in the CLOSED position.
i. Secure the key in the Con Edison lock
box.
