S&C ELECTRIC COMPANY
716-600
INSTRUCTION SHEET
Page 14 of 24
February 11, 2002
S&C Series 2000 Circuit-Switchers
Interrupter Replacement
Outdoor Transmission (69 kV through 230 kV)
INTERRUPTER REPLACEMENT ON MODELS 2010, 2015, AND 2040 — Continued
Step 23
With a moderate strain on the lifting slings, carefully slide
the interrupter away from the transition box and lower it
to the ground.
Use care to avoid damaging the exposed
operating rod.
Step 24
Remove the three
¹⁄₂
—13
1
¹⁄₄
hex-head stainless-steel
cap screws and Belleville washers which are used to
attach the terminal pad to the interrupter. Retain the
terminal pad and hardware for re-use in Step 27.
Step 25
Open the replacement interrupter shipping crate. Attach
two suitable lifting slings to the replacement interrupter
(the center of gravity is at approximately the center of the
unit). See Figure 6. Then carefully remove the interrupter
from the shipping crate and place it on the ground. Retain
the shipping crate.
Step 26
Remove the interrupter lifting bracket and associated
¹⁄₂
-inch stainless-steel hardware from the end of the
replacement interrupter. (This bracket is not used in the
interrupter replacement procedure for Model 2010, Model
2015, or Model 2040 Circuit-Switchers.) Attach the
remaining shield for the interrupter pressure-relief device
and low-gas-pressure indicator to the replacement
interrupter, using two of the
¹⁄₂
—13
1
¹⁄₄
hex-head
stainless-steel cap screws which were just removed.
Discard the remaining screws.
Ç
CAUTION
Do not remove the replacement interrupter bolted-on
container until the installation has been completed.
Figure 11. Removing interrupter from Model 2010 or Model 2015 Series 2000 Circuit-Switcher. Model 2040 is similar.
69 kV:
¹⁄₂
—13
1
¹⁄₄
hex-head galvanized steel
cap screws and flat washers
115 kV thru 230 kV:
¹⁄₂
—13
1
¹⁄₄
hex-head galvanized steel
cap screws and flat washers
¹⁄₂
—13
1
¹⁄₄
hex-head stainless-steel
cap screws
Shield
for pressure-
relief device and
low-gas-pressure
indicator
¹⁄₂
—13
1
¹⁄₄
hex-head stainless-steel
cap screws and Belleville washers
Interrupter
Terminal pad
Support insulator
Transition box
¹⁄₂
—13 stainless-steel hex
nuts and Belleville washers
