S&C 2000 series User manual

S&C Series 2000 Circuit-Switchers
Interrupter Replacement
Outdoor Transmission (69 kV through 230 kV)
S&C ELECTRIC COMPANY
Supersedes Instruction Sheet 716-600 dated 9-13-93 c 2002
INSTRUCTION SHEET
716-600
Page 1 of 24
February 11, 2002
INSTRUCTIONS
For Field Replacement
Section Page Number
INTRODUCTION
Qualified Persons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Read this Instruction Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Retain this Instruction Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Proper Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SAFETY INFORMATION
Understanding Safety-Alert Messages . . . . . . . . . . . . . . . . . . . 3
Following Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . 3
Replacement Instructions and Labels . . . . . . . . . . . . . . . . . . . 3
INSPECTION AND PACKING
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Section Page Number
BEFORE STARTING INTERRUPTER
REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INTERRUPTER REPLACEMENT
ON MODELS 2020, 2025, AND 2030 . . . . . . . . . . . . . . . . . . . . . . 5
INTERRUPTER REPLACEMENT
ON MODELS 2010, 2015, and 2040 . . . . . . . . . . . . . . . . . . . . . . 12
INTERRUPTERS WITH THE REMOTE GAS-DENSITY
MONITOR OPTION
Installing the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Programming the Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
INSPECTION SCHEDULE AND PROCEDURES . . . . . . . . . . . . 24
TABLE OF CONTENTS
INTRODUCTION
The following instructions are for field replacement of
interrupters for S&C Series 2000 Circuit-Switchers rated
69 kV through 230 kV.
The Series 2000 Circuit-Switcher interrupter is a porce-
lain-enclosed, hermetically sealed device containing
sulfur-hexafluoride (SF
6
) gas under pressure. It employs
an operating rod which is driven to the open position at
high speed, by means of a power train connected to the
Series 2000 Circuit-Switcher Operator, to effect circuit
interruption. This operating rod is also driven to the
closed position at high speed to effect circuit closing
within the interrupter.
Qualified Persons
Ç
WARNING
The equipment covered by this publication must be
installed, operated, and maintained by qualified per-
sons who are knowledgeable in the installation, oper-
ation, and maintenance of electric power distribution
equipment along with the associated hazards. A quali-
fied person is one who is trained and competent in:
•
The skills and techniques necessary to distinguish
exposed live parts from non-live parts of electrical
equipment.
•
The skills and techniques necessary to determine
the proper approach distances corresponding to
the voltages to which the qualified person will be
exposed.
•
The proper use of the special precautionary tech-
niques, personal protective equipment, insulating
and shielding materials, and insulated tools for
working on or near exposed energized parts of
electrical equipment.
These instructions are intended only for such qual-
ified persons. They are
not intended to be a substitute
for adequate training and experience in safety proce-
dures for this type of equipment.

S&C ELECTRIC COMPANY
716-600
INSTRUCTION SHEET
Page 2 of 24
February 11, 2002
S&C Series 2000 Circuit-Switchers
Interrupter Replacement
Outdoor Transmission (69 kV through 230 kV)
INTRODUCTION —Continued
Read this Instruction Sheet
Read this instruction sheet thoroughly and carefully
before installing or operating your S&C Series 2000 Cir-
cuit-Switcher. Familiarize yourself with “SAFETY INFOR-
MATION” on page 3.
Retain this Instruction Sheet
This instruction sheet is a permanent part of your S&C
Series 2000 Circuit-Switcher. These instructions should
be stored in the operator cabinet of the circuit-switcher,
using the instruction manual holder.
Proper Application
Warranty
The standard warranty contained in S&C’s standard con-
ditions of sale, as set forth in Price Sheet 150, is applica-
ble to the S&C Series 2000 Circuit-Switcher covered in
this instruction sheet. Warranty of Series 2000 Circuit-
Switcher is contingent upon the installation of Series
2000 Circuit-Switcher in accordance with S&C’s applica-
ble instruction sheets, data sheets, and/or data bulletins.
Ç
CAUTION
The replacement interrupter(s) and associated equip-
ment in this publication is (are) only intended for use
with an S&C Series 2000 Circuit-Switcher. Series 2000
replacement parts are not interchangeable with the
interrupter(s) and equipment designed for other S&C
Circuit-Switcher models.

INSTRUCTION SHEET
716-600
Page 3 of 24
February 11, 2002
S&C ELECTRIC COMPANY
SAFETY INFORMATION
Understanding Safety-Alert Messages
There are several types of safety-alert messages which
may appear throughout this instruction sheet as well as
on labels attached to the Series 2000 Circuit-Switcher.
Familiarize yourself with these types of messages and the
importance of the various signal words, as explained
below.
Following Safety Instructions
If you do not understand any portion of this instruction
sheet and need assistance, contact your nearest S&C
Sales Office or S&C Authorized Distributor, or call S&C
Headquarters at [phone], Monday through Friday
between 8:30 AM and 5:00 PM Central Standard Time. (In
Canada, call S&C Electric Canada Ltd. at [phone],
Monday through Friday between 8:00 AM and 5:00 PM
Eastern Standard Time.)
Replacement Instructions and Labels
If you need additional copies of this instruction sheet,
contact your nearest S&C Sales Office, S&C Authorized
Distributor, S&C Headquarters, or S&C Electric Canada
Ltd.
It is important that any missing, damaged, or faded
labels on the equipment be replaced immediately.
Replacement labels are available by contacting your near-
est S&C Sales Office, S&C Authorized Distributor, S&C
Headquarters, or S&C Electric Canada Ltd.
Ç
DANGER
“DANGER” identifies the most serious and immediate
hazards which
will likely result in serious personal
injury or death if instructions, including recom-
mended precautions, are not followed.
Ç
WARNING
“WARNING” identifies hazards or unsafe practices
which
can result in serious personal injury or death if
instructions, including recommended precautions, are
not followed.
Ç
CAUTION
“CAUTION” identifies hazards or unsafe practices
which
can result in minor personal injury or product or
property damage if instructions, including recom-
mended precautions, are not followed.
NOTICE
“NOTICE” identifies important procedures or require-
ments that
can result in product or property damage if
instructions are not followed.
NOTICE
Read this instruction sheet
thoroughly and carefully
before installing or operat-
ing your S&C Series 2000
Circuit-Switcher

S&C ELECTRIC COMPANY
716-600
INSTRUCTION SHEET
Page 4 of 24
February 11, 2002
S&C Series 2000 Circuit-Switchers
Interrupter Replacement
Outdoor Transmission (69 kV through 230 kV)
INSPECTION AND PACKING
Inspection
Examine the shipment for external evidence of damage as
soon after receipt as possible, preferably before removal
from the carrier’s conveyance. Check the bill of lading to
make sure that all shipping skids, crates, and containers
listed thereon are present.
If there is visible loss and/or damage:
1. Notify the delivering carrier immediately.
2. Ask for a carrier inspection.
3. Note condition of shipment on all copies of the delivery
receipt.
4. File a claim with the carrier.
If concealed damaged is discovered:
1. Notify the delivering carrier within 15 days of receipt of
shipment.
2. Ask for a carrier inspection.
3. File a claim with the carrier.
Also notify S&C Electric Company in all instances of
loss and/or damage.
Packing
The Series 2000 Circuit-Switcher interrupter is a porce-
lain-enclosed, hermetically sealed device containing
sulfur-hexafluoride (SF
6
) gas under pressure (75 PSI). To
guard against breakage and possible hazard to person-
nel, the Series 2000 Circuit-Switcher interrupter is
shipped in a bolted-on container. Replacement interrupt-
ers are shipped with this container in place. Do not
remove the interrupter container until so directed in the
following instructions. A separate interrupter container
and associated hardware is shipped with the replace-
ment interrupter for use during replacement.
BEFORE STARTING INTERRUPTER REPLACEMENT
For Series 2000 Circuit-Switchers with vertical
interrupters—Models 2020, 2025, and 2030—proceed to
page 5. For Series 2000 Circuit-Switchers with
horizon-
tal
interrupters—Models 2010, 2015, and 2040—proceed
to page 12.
Ç
DANGER
Make sure that the Circuit-Switcher is de-energized,
isolated from all power sources, and grounded at all
six terminals before starting.
Working on an ener-
gized Circuit-Switcher can result in severe per-
sonal injury or death.

INSTRUCTION SHEET
716-600
Page 5 of 24
February 11, 2002
S&C ELECTRIC COMPANY
INTERRUPTER REPLACEMENT ON MODELS 2020, 2025, AND 2030
Step 1
After following the user’s standard procedures for clearing
and tagging equipment on which work is to be performed,
close the Circuit-Switcher by pressing the “CLOSE” push
button on the operator.d
Then remove the trip-circuit and
control-circuit fuseholders or—on newer operators—open
the control-source disconnect switch and remove the
motor-and-closing circuit fuseholder from the operator.
Push the manual trip lever counterclockwise to trip the
interrupters. Do not replace the fuseholder(s) until so
directed.
Do not open the disconnect on Model 2020 Circuit-
Switchers by means of the manual charging handle. The
Series 2000 Circuit-Switcher Operator must remain dis-
charged during the interrupter replacement procedure.
Step 2
Install the spare interrupter container, furnished with the
replacement interrupter, around the interrupter to be
replaced, using the following procedure:
(a) Remove the two container-halves from the shipping
crate. Note that one of the container-halves is fur-
nished with a loosely attached
³⁄₈  —16  2  carriage bolt
at each end. Position this container-half so that the car-
riage-bolt threads protrude through the holes at the
ends of the other container-half as shown in Figure 1.
(b) Thread a
³⁄₈  —16 zinc-plated serrated hex nut on each
of the two
³⁄₈  —16  2  carriage bolts. Tighten each hex
nut just a few turns. See Figure 1.
(c) Attach suitable lifting slings to the lifting rings at one
end of the container-half assembly. See Figure 2. Raise
the container into position around the interrupter.
d Trip-close push buttons are not included on operators specified with
catalog number suffix “-J.” In such instances, momentarily jumper termi-
nals 1 and 3 to close the Circuit-Switcher.
Figure 1. Assembling spare interrupter container. Figure 2. Raising spare interrupter container into position
on interrupter being replaced. Model 2030 Circuit-Switcher
illustrated; Models 2020 and 2025 are similar.
Lifting rings (4)
³⁄₈—162carriage bolts (2)
³⁄₈—16 zinc-plated serrated hex nuts (2)

S&C ELECTRIC COMPANY
716-600
INSTRUCTION SHEET
Page 6 of 24
February 11, 2002
S&C Series 2000 Circuit-Switchers Interrupter Replacement
Outdoor Transmission (69 kV through 230 kV)
Coupling End Indicator End
³⁄₈—16 zinc-plated serrated hex nut
Clamps
Cable
INTERRUPTER REPLACEMENT ON MODELS 2020, 2025, AND 2030 — Continued
(d) Using a screwdriver as necessary to spread the edges,
snap the two halves together as shown in Figure 3.
Place a ³⁄₈—16 zinc-plated serrated hex nut on each of
the captive ³⁄₈—16³⁄₄carriage bolts that run the
length of the container-halves.
(e) Attach the container-halves at the indicator end of the
interrupter using one of the cables furnished. See
Figure 3 (right). Thread the cable through adjacent
holes in the container-halves, as shown. Position the
cable around the indicator end casting, then thread the
cable through adjacent holes in the container-halves,
on the other side. Do not attach clamps to the cable at
this time.
(f) Attach the container-halves at the coupling end of the
interrupter in a similar manner, using the other cable
furnished. See Figure 3 (left). Slide the container-
halves back or forth as necessary to allow the cable to
be threaded through the holes.
(g) Pull the cable taut at the indicator end of the inter-
rupter and attach two of the clamps furnished. See
Figure 3 (right). Securely tighten the clamp nuts.
(h) Pull the cable taut at the coupling end of the inter-
rupter and attach the other two clamps furnished. See
Figure 3 (left). Securely tighten the clamp nuts.
(i) Securely tighten the ³⁄₈—16 zinc-plated serrated hex
nuts that run the length of the container-halves.
Step 3
For Model 2020 and Model 2025 Circuit-Switchers:
Remove the high-voltage conductor from the upper
terminal pad. For Model 2030 Circuit-Switchers:
Remove the high-voltage conductors from the upper and
lower terminal pads. Then remove the three ¹⁄₂—131¹⁄₄
hex-head stainless-steel cap screws and Belleville washers
which are used to attach the upper terminal pad to the
interrupter. Retain the upper terminal pad for re-use in
Step 12. Now attach the spare interrupter lifting bracket,
furnished with the replacement interrupter (in a separate
box), using the hardware just removed. See Figure 4.
Securely tighten the cap screws.
Figure 3. Attaching spare interrupter container on interrupter being replaced. Model 2030 Circuit-Switcher illustrated; Models
2020 and 2025 are similar. Model 2010, 2015, and 2040 interrupter is horizontal.

INSTRUCTION SHEET 716-600
Page 7 of 24
February 11, 2002
S&C ELECTRIC COMPANY
Interrupter
lifting bracket
¹⁄₂—131¹⁄₄
hex-head
stainless-steel
cap screws and
Belleville
washers
Four ¹⁄₂—13
stainless-steel
hex nuts and
Belleville
washers
Four ⁵⁄₁₆—18³⁄₄
hex-head
stainless-steel
cap screws
Access cover Transition box
Insulating support
column
INTERRUPTER REPLACEMENT ON MODELS 2020, 2025, AND 2030 — Continued
Step 4
Remove the four ⁵⁄₁₆—18³⁄₄hex-head stainless-steel
cap screws used to attach the access cover to the side of
the transition box on the insulating support column. See
Figure 4. Remove the cover and place it and the hardware
on a clean surface. They will be re-used in Step 11(f).
Step 5
Prepare the interrupter for removal from the insulating
support column as follows. For Circuit-Switchers rated 69
kV through 138 kV, refer to Figure 5 (top); for Circuit-
Switchers rated 161 kV and 230 kV, refer to Figure 5
(bottom).
(a) Attach the spare stop bracket (marked with a
black/yellow striped label) and spacer (marked with a
black/yellow striped label) to the interrupter using the
⁵⁄₁₆—182¹⁄₄hex-head stainless-steel screw fur-
nished. (These items are included with the replace-
ment interrupter, in a separate box.) Hand-tighten the
screw.
(b) Remove the pin retaining clip and connecting pin
which attach the coupling to the operating rod link.
Discard the connecting pin and pin retaining clip.
(c) Now securely tighten the ⁵⁄₁₆—182¹⁄₄hex-head
stainless-steel screw.
Step 6
Attach a suitable lifting sling to the interrupter lifting
bracket. Then remove the four ¹⁄₂—13 stainless-steel hex
nuts and Belleville washers which attach the interrupter
to the transition box on the insulating support column.
See Figure 4. Retain this hardware for re-use in
Step 11(c).
Step 7
Carefully lift the interrupter from atop the transition box
of its associated insulating support column and lower it
to the ground. Place the interrupter on the ground
horizontally. Use care to avoid damaging the exposed
coupling.
ÇCAUTION
Do not lift interrupter vertically by the lifting rings on
the container.
Figure 4. Removing access cover from transition box.

S&C ELECTRIC COMPANY
716-600 INSTRUCTION SHEET
Page 8 of 24
February 11, 2002
S&C Series 2000 Circuit-Switchers Interrupter Replacement
Outdoor Transmission (69 kV through 230 kV)
Connecting pin
(with cross-hole)
INTERRUPTER REPLACEMENT ON MODELS 2020, 2025, AND 2030 — Continued
Figure 5. Disconnecting interrupter from operating rod link.
Circuit-Switchers rated 69 kV through 138 kV
Circuit-Switchers rated 161 kV and 230 kV
Connecting pin (with groove)
Spacer (marked with a
black/yellow striped label)
Stop bracket (marked
with a black/yellow striped
label)
Coupling
Operating rod link
Pin retaining clip
⁵⁄₁₆—182¹⁄₄
hex-head stain-
less-steel screw
Stop bracket
(marked with a
black/yellow
striped label)
⁵⁄₁₆—182¹⁄₄
hex-head stain-
less-steel screw
Coupling
Slot (coincides
with cross-hole)
Spacer (marked with a
black/yellow striped label)
Pin retaining clip
Operating rod link
Step 8
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.
ÇCAUTION
Do not remove the replacement interrupter bolted-on
container until the installation has been completed.
Figure 6. Removing replacement interrupter from shipping
crate.

INSTRUCTION SHEET 716-600
Page 9 of 24
February 11, 2002
S&C ELECTRIC COMPANY
INTERRUPTER REPLACEMENT ON MODELS 2020, 2025, AND 2030 — Continued
Operating-rod holding
bracket (marked with a
black/yellow striped label)
Operating rod in shipping position Operating rod in fully open position
#10–32 screws
Coupling
Connecting pin
Figure 7. Preparing replacement interrupter for attachment to insulating support column.
Step 9
Attach a lifting sling to the lifting bracket on the
replacement interrupter. Then carefully lift the interrupter
somewhat higher than the top of the transition box on the
insulating support column. Use care to avoid damaging
the exposed coupling.
Step 10
Prepare the replacement interrupter for attachment to the
insulating support column as follows:
(a) Remove and discard the two #10–32 screws which
connect the operating-rod holding bracket (marked
with a black/yellow striped label) for shipment. See
Figure 7 (left).
(b) Pull the holding bracket to move the operating rod to
its fully open position. See Figure 7 (right).
(c) Remove the connecting pin and pin retaining clip used
to attach the holding bracket to the coupling. Retain
the connecting pin and pin retaining clip for re-use in
Step 11(d), but discard the holding bracket.
NOTICE
The operating rod is under pressure; when the two
screws are removed, the holding bracket may move
about ¹⁄₂ inch.

S&C ELECTRIC COMPANY
716-600 INSTRUCTION SHEET
Page 10 of 24
February 11, 2002
S&C Series 2000 Circuit-Switchers Interrupter Replacement
Outdoor Transmission (69 kV through 230 kV)
INTERRUPTER REPLACEMENT ON MODELS 2020, 2025, AND 2030 — Continued
Step 11
For interrupters with the remote gas-density monitor
option, see “Installing the Transmitter” on page 18.
Attach the replacement interrupter to the insulating
support column as follows. See Figure 8.
(a) Thoroughly wire-brush the top of the transition box
and the mating surface on the interrupter, and immedi-
ately apply a liberal coating of Penetrox®A (available
from Burndy Corporation) or other suitable aluminum
connector compound to the brushed surfaces.
(b) Make certain that the positioning mark on the
bottom of the interrupter is aligned with the posi-
tioning mark on the top of the transition box. Then
carefully lower the interrupter on top of the transition
box. Note that one of the ¹⁄₂—13 stainless-steel studs
on the interrupter is longer than the other three, to aid
in assembly.
(c) Reattach a ¹⁄₂-inch Belleville washer and a ¹⁄₂—13
stainless-steel hex nut, as retained from Step 6, to
each of the four studs. Tighten each nut securely.
(d) For Circuit-Switchers rated 69 kV through 138
kV: Insert the connecting pin retained from Step 10(c)
into the coupling and operating rod link. See Figure 5
(top). It will be necessary to loosen the
⁵⁄₁₆ —18  2 ¹⁄₄
hex-head stainless-steel screw indicated in Figure 5
(top) and withdraw it approximately
¹⁄₈ inch, so that
the connecting pin can be inserted. Do not remove
the screw at this time. Now insert the pin retaining
clip retained from Step 10(c) as indicated in Figure 5
(top). Make sure that the clip is positioned as shown.
For Circuit-Switchers rated 161 kV and 230 kV:
Insert the connecting pin retained from Step 10(c) into
the coupling and operating rod link. See Figure 5 (bot-
tom). It will be necessary to loosen the
⁵⁄₁₆ —18  2 ¹⁄₄
hex-head stainless-steel screw indicated in Figure 5
(bottom) and withdraw it approximately ¹⁄₈ inch, so
that the connecting pin can be inserted. Do not
remove the screw at this time. Use a screwdriver
blade in the slot at the end of the connecting pin to
align the cross-hole in the connecting pin with the
cross-hole in the operating rod link. Now insert the pin
retaining clip retained from Step 10(c) as indicated in
Figure 5 (bottom). Make sure that the clip is posi-
tioned as shown.
Interrupter lifting
bracket
¹⁄₂—13 stainless-steel
studs, Belleville
washers, and stainless-
steel hex nuts
Positioning mark
Transition box
Access cover
(removed)
Figure 8. Attaching replacement interrupter to insulating support column. Model 2030 illustrated; Models 2020 and 2025 are
similar.

INSTRUCTION SHEET 716-600
Page 11 of 24
February 11, 2002
S&C ELECTRIC COMPANY
INTERRUPTER REPLACEMENT ON MODELS 2020, 2025, AND 2030 — Continued
(e) Now remove and discard the ⁵⁄₁₆—182¹⁄₄hex-head
stainless-steel screw, stop bracket (marked with a
black/yellow striped label), and spacer (marked with a
black/yellow striped label) illustrated in Figure 5.
(f) Replace the access cover retained from Step 4 and
securely tighten the associated ⁵⁄₁₆—18³⁄₄hex-head
stainless-steel cap screws.
Step 12
Remove the interrupter lifting bracket and associated
¹⁄₂-inch stainless-steel hardware from atop the interrupter.
Discard the lifting bracket but retain the hardware.
Thoroughly wire-brush the indicator end casting where
the terminal pad is to be attached, as well as the mating
surface on the upper terminal pad, and immediately apply
a liberal coating of Penetrox A or other suitable
aluminum connector compound to the brushed surfaces.
Then attach the upper terminal pad using three
¹⁄₂—131¹⁄₄hex-head stainless-steel cap screws and
Belleville washers. Reconnect the high-voltage
conductor(s).
Step 13
Remove the container from the replacement interrupter
as follows:
(a) Remove and discard the ³⁄₈—16 zinc-plated serrated
hex nuts which run the length of the container.
(b) Remove and discard the two ³⁄₈—161and two
³⁄₈—16⁷⁄₈zinc-plated hex-head cap screws and flat
washers which attach the two container-halves to the
coupling end casting of the interrupter.
(c) Remove and discard the two ³⁄₈—161and one
³⁄₈—16⁷⁄₈zinc-plated hex-head cap screws and flat
washers which attach one of the container-halves to
the indicator end casting of the interrupter. Don’t
remove the remaining ³⁄₈—16⁷⁄₈cap screw—it’s
needed to temporarily retain the other container-half.
(d) Pry the container-halves apart with a screwdriver. One
of the container-halves can now be removed and dis-
carded—slotted holes are provided so that a rope or
lifting sling can be attached and the container-half
more conveniently lowered to the ground.
(e) Now remove and discard the remaining ³⁄₈—16⁷⁄₈
hex-head cap screw and flat washer which attach the
other container-half. Then discard this container-half.
(f) Finally, remove and discard the foam-core inner liner
wrapped around the interrupter.
Step 14
Replace the trip-circuit and control-circuit fuseholders in
the operator or—on newer operators—close the control-
source disconnect switch and replace the motor-and-
closing circuit fuseholder.
Step 15
Attach lifting slings to the four lifting rings on the
replaced interrupter container. Do not loop slings from
one end of the container to the other. Carefully lift the
interrupter into the replacement interrupter shipping
crate. Secure the interrupter and close the lid.
Step 16
Ship the replaced interrupter, transportation charges
prepaid, to S&C Electric Company, Repair Center, 1800
Devon Avenue, Chicago, Illinois 60660-1010. To ensure
proper handling, purchasers are asked to obtain from the
nearest S&C Sales Office a special serially numbered
label to place on the shipping crate. Please enclose a
packing slip showing purchase order or requisition
number covering the exchange.

S&C ELECTRIC COMPANY
716-600 INSTRUCTION SHEET
Page 12 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
Step 17
After following the user’s standard procedures for
clearing and tagging equipment on which work is to be
performed, close the Circuit-Switcher by pressing the
“CLOSE” push button on the operator.dThen remove the
trip-circuit and control-circuit fuseholders or—on newer
operators—open the control-source disconnect switch
and remove the motor-and-closing circuit fuseholder
from the operator. Push the manual trip lever
counterclockwise to trip the interrupters. Do not replace
the fuseholder(s) until so directed.
Step 18
Install the spare interrupter container, furnished with the
replacement interrupter, around the interrupter to be
replaced, using the following procedure:
NOTICE
Do not open the disconnect on Model 2010 Circuit-
Switchers by means of the manual charging handle.
The Series 2000 Circuit-Switcher Operator must
remain discharged during the interrupter replace-
ment procedure.
(a) Remove the two container-halves from the shipping
crate. Note that one of the container-halves is fur-
nished with a loosely attached ³⁄₈—162carriage
bolt at each end. Position this container-half so that
the carriage-bolt threads protrude through the holes at
the ends of the other container-half as shown in
Figure 1.
(b) Thread a ³⁄₈—16 zinc-plated serrated hex nut on each
of the two ³⁄₈—162carriage bolts. Tighten each hex
nut just a few turns. See Figure 1.
(c) Attach suitable lifting slings to the four lifting rings at
the ends of the container-half assembly. See Figure 9.
Do not loop slings from one end of the container to the
other. Raise the container into position around the
interrupter.
(d) Using a screwdriver as necessary to spread the edges,
snap the two halves together as shown in Figure 3.
Place a ³⁄₈—16 zinc-plated serrated hex nut on each of
the captive ³⁄₈—16³⁄₄carriage bolts that run the
length of the container-halves. Do not remove the lift-
ing slings until the interrupter has been removed
and lowered to the ground, as directed in Step 7.
(e) Attach the container-halves at the indicator end of the
interrupter using one of the cables furnished. See
Figure 3 (right). Thread the cable through adjacent
holes in the container-halves, as shown. Position the
cable around the indicator end casting, then thread
the cable through adjacent holes in the container-
halves, on the other side. Do not attach clamps to the
cable at this time.
(f) Attach the container-halves at the coupling end of the
interrupter in a similar manner, using the other cable
furnished. See Figure 3 (left). Slide the container-
halves back or forth as necessary to allow the cable to
be threaded through the holes.
(g) Pull the cable taut at the indicator end of the inter-
rupter and attach two of the clamps furnished. See
Figure 3 (right). Securely tighten the clamp nuts.
(h) Pull the cable taut at the coupling end of the inter-
rupter and attach the other two clamps furnished. See
Figure 3 (left). Securely tighten the clamp nuts.
(i) Securely tighten the ³⁄₈—16 zinc-plated serrated hex
nuts that run the length of the container-halves.
Step 19
Remove the high-voltage conductor from the interrupter-
end terminal pad and, on Model 2040 only, from the
transition-box-end terminal pad. Then attach one of the
dTrip-close push buttons are not included on operators specified with
catalog number suffix “-J.” In such instances, momentarily jumper termi-
nals 1 and 3 to close the Circuit-Switcher.
Figure 9. Raising spare interrupter container into position
on interrupter being replaced. Model 2010 Circuit-Switcher
illustrated; Models 2015 and 2040 are similar.

INSTRUCTION SHEET 716-600
Page 13 of 24
February 11, 2002
S&C ELECTRIC COMPANY
Transition box
INTERRUPTER REPLACEMENT ON MODELS 2010, 2015, AND 2040 — Continued
Pin
retaining
clip
Operating rod link
Stop bracket (marked with a
black/yellow striped label)
Six ⁵⁄₁₆—18³⁄₄hex-head
stainless-steel cap screws for
access cover (removed)
Spacer (marked with a black/yellow
striped label)
Circuit-Switchers rated
161 kV and 230 kV
Connecting pin
Coupling
Pin retaining clip
Circuit-Switchers rated 69 kV through 138 kV
⁵⁄₁₆—182¹⁄₄hex-head
stainless-steel screw
Figure 10. Transition box on Model 2010 and Model 2015 Series 2000 Circuit-Switchers rated 69 kV through 138 kV. Model
2040 is similar. Inset illustrates pin retaining clip used on Circuit-Switchers rated 161 kV and 230 kV.
shields for the interrupter pressure-relief device and low-
gas-pressure indicator, furnished with the replacement
interrupter (in a separate box), using two ¹⁄₂—131¹⁄₄
hex-head stainless-steel cap screws furnished. See
Figure 11.
Step 20
Remove the six ⁵⁄₁₆—18³⁄₄hex-head stainless-steel cap
screws used to attach the access cover to the side of the
transition box on the insulating support column. See
Figure 10. Remove the cover and place it and the
hardware on a clean surface. They will be re-used in
Step 31.
Step 21
Prepare the interrupter for removal as follows. See
Figure 10.
(a) Attach the spare stop bracket (marked with a
black/yellow striped label) and spacer (marked with a
black/yellow striped label) to the interrupter using the
⁵⁄₁₆—182¹⁄₄hex-head stainless-steel screw fur-
nished. (These items are included with the replace-
ment interrupter, in a separate box.) Hand-tighten the
screw.
(b) Remove the pin retaining clip and connecting pin
which attach the coupling to the operating rod link.
Discard the connecting pin and pin retaining clip.
(c) Now securely tighten the ⁵⁄₁₆—182¹⁄₄hex-head
stainless-steel screw.
Step 22
Remove the four ¹⁄₂—13 stainless-steel hex nuts and
Belleville washers which attach the interrupter to the
transition box. Also remove the four ¹⁄₂—131¹⁄₄hex-
head galvanized steel cap screws and flat washers (for
Circuit-Switchers rated 69 kV) or the four ⁵⁄₈—111¹⁄₄
hex-head galvanized steel cap screws and flat washers
(for Circuit-Switchers rated 115 kV through 230 kV)
which are used to attach the terminal pad to the support
insulator. See Figure 11. Retain the hardware for re-use in
Step 29.

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1¹⁄₄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1¹⁄₄hex-head
stainless-steel cap screws which were just removed.
Discard the remaining screws.
ÇCAUTION
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1¹⁄₄hex-head galvanized steel
cap screws and flat washers
115 kV thru 230 kV: ¹⁄₂—131¹⁄₄ hex-head galvanized steel
cap screws and flat washers
¹⁄₂—131¹⁄₄hex-head stainless-steel
cap screws Shield for pressure-
relief device and
low-gas-pressure
indicator
¹⁄₂—131¹⁄₄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


INSTRUCTION SHEET 716-600
Page 15 of 24
February 11, 2002
S&C ELECTRIC COMPANY
INTERRUPTER REPLACEMENT ON MODELS 2010, 2015, AND 2040 — Continued
Step 27
Thoroughly wire-brush the indicator end casting of the
replacement interrupter where the terminal pad is to be
attached, as well as the mating surface on the terminal
pad, and immediately apply a liberal coating of Penetrox
A or other suitable aluminum connector compound to the
brushed surfaces. Then loosely attach the terminal pad to
the replacement interrupter using the three ¹⁄₂—131¹⁄₄
hex-head stainless-steel cap screws and Belleville wash-
ers retained from Step 24.
Step 28
Remove and discard the two #10–32 screws which con-
nect the operating-rod holding bracket (marked with a
black/yellow striped label) for shipment. See Figure 12
(left).
Pull the holding bracket to move the operating rod to
its fully open position. See Figure 12 (right). Then remove
the connecting pin and pin retaining clip used to attach
the holding bracket to the coupling. Retain the connecting
pin and pin retaining clip for re-use in Step 30, but discard
the holding bracket.
Step 29
Attach two suitable lifting slings to the replacement inter-
rupter and carefully lift and slide the interrupter into posi-
tion. Use care to avoid damaging the exposed operating
rod.
Thoroughly wire-brush the mating surfaces on the tran-
sition box and replacement interrupter, and immediately
apply a liberal coating of Penetrox A or other suitable alu-
minum connector compound to the brushed surfaces.
Now attach the replacement interrupter to the transition
box using the four ¹⁄₂—13 stainless-steel hex nuts and
Belleville washers retained from Step 22. Then attach the
terminal pad to the support insulator using the four
¹⁄₂—131¹⁄₄hex-head galvanized steel cap screws and
flat washers (for Circuit-Switchers rated 69 kV) or the
four ⁵⁄₈—111¹⁄₄hex-head galvanized steel cap screws
and flat washers (for Circuit-Switchers rated 115 kV
through 230 kV) retained from Step 22. Securely tighten
all the hardware, including the cap screws used to attach
the terminal pad to the replacement interrupter.
NOTICE
The operating rod is under pressure; when the two
screws are removed, the holding bracket may move
about ¹⁄₂ inch.
Figure 12. Preparing replacement interrupter for attachment to transition box.
Operating rod in fully open position
Operating rod in shipping position
Connecting pin
Operating-rod holding
bracket (marked with a
black/yellow striped label)
#10–32 screws
Coupling

S&C ELECTRIC COMPANY
716-600 INSTRUCTION SHEET
Page 16 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
Connecting pin
(with groove)
Pin retaining
clip
Operating
rod link
Stop bracket (marked
with a black/yellow
striped label)
⁵⁄₁₆—182¹⁄₄ 
hex-head stainless-steel screw Spacer (marked with
a black/yellow striped
label)
Connecting pin
(with cross-hole)
Operating
rod link
Stop bracket (marked
with a black/yellow
striped label)
⁵⁄₁₆—182¹⁄₄ 
hex-head stainless-steel
screw
Spacer (marked with
a black/yellow striped
label)
Slot
(coincides with
cross-hole)
Circuit-Switchers rated 69 kV through 138 kV Circuit-Switchers rated 161 kV and 230 kV
Pin retaining clip
Coupling
Coupling
Step 30
For interrupters with the remote gas-density monitor
option, see “Installing the Transmitter” on page 18.
For Circuit-Switchers rated 69 kV through 138 kV:
Insert the connecting pin retained from Step 28 into the
coupling and operating rod link. See Figure 13 (left). It
will be necessary to loosen the
⁵⁄₁₆ —18  2 ¹⁄₄ hex-head
stainless-steel screw indicated in Figure 13 (left) and
withdraw it approximately
¹⁄₈ inch, so that the connect-
ing pin can be inserted. Do not remove the screw at this
time. Now insert the pin retaining clip retained from Step
28 as indicated in Figure 13 (left). Make sure that the clip
is positioned as shown. Finally, remove and discard the
⁵⁄₁₆—182¹⁄₄hex-head stainless-steel screw, stop bracket
(marked with a black/yellow striped label), and spacer
(marked with a black/yellow striped label) illustrated in
Figure 13 (left).
For Circuit-Switchers rated 161 kV and 230 kV:
Insert the connecting pin retained from Step 28 into the
coupling and operating rod link. See Figure 13 (right). It
will be necessary to loosen the
⁵⁄₁₆ —18  2 ¹⁄₄ hex-head
stainless-steel screw indicated in Figure 13 (right) and
withdraw it approximately
¹⁄₈ inch, so that the connect-
ing pin can be inserted. Do not remove the screw at this
time. Use a screwdriver blade in the slot at the end of the
connecting pin to align the cross-hole in the connecting
pin with the cross-hole in the operating rod link. Now
insert the pin retaining clip retained from Step 28 as indi-
cated in Figure 13 (right). Make sure that the clip is posi-
tioned as shown. Finally, remove and discard the
⁵⁄₁₆—182¹⁄₄hex-head stainless-steel screw, stop
bracket (marked with a black/yellow striped label), and
spacer (marked with a black/yellow striped label) illus-
trated in Figure 13 (right).
Figure 13. Coupling replacement interrupter.

INSTRUCTION SHEET 716-600
Page 17 of 24
February 11, 2002
S&C ELECTRIC COMPANY
INTERRUPTER REPLACEMENT ON MODELS 2010, 2015, AND 2040 — Continued
Step 31
Replace the access cover retained from Step 20 and
securely tighten the associated ⁵⁄₁₆—18³⁄₄hex-head
stainless-steel cap screws.
Step 32
Remove the shield for the pressure-relief device and low-
gas-pressure indicator from the replacement interrupter.
Discard the shield and its hardware. Reconnect the high-
voltage conductor to the interrupter-end terminal pad
and, on Model 2040, to the transition-box-end terminal
pad.
Step 33
Remove the container from the replacement interrupter
as follows:
(a) Remove and discard the ³⁄₈—16 zinc-plated serrated
hex nuts which run the length of the container.
(b) Remove and discard the ³⁄₈—16⁷⁄₈and two
³⁄₈—161zinc-plated hex-head cap screws and flat
washers which attach the upper container-half to the
coupling end casting of the interrupter. Also remove
and discard the ³⁄₈—16⁷⁄₈and two ³⁄₈—161zinc-
plated hex-head cap screws and flat washers which
attach the upper container-half to the indicator end
casting of the interrupter.
(c) Pry the container-halves apart with a screwdriver. The
upper container-half can now be removed and dis-
carded—slotted holes are provided so that a rope or
lifting sling can be attached and the container-half
more conveniently lowered to the ground.
(d) Now remove and discard the ³⁄₈—16⁷⁄₈hex-head
cap screw and flat washer which attach the lower con-
tainer-half to the coupling end casting of the inter-
rupter, and the ³⁄₈—16⁷⁄₈hex-head cap screw and
flat washer which attach the lower container-half to
the indicator end casting of the interrupter. Then dis-
card this container-half.
(e) Finally, remove and discard the foam-core inner liner
wrapped around the interrupter.
Step 34
Replace the trip-circuit and control-circuit fuseholders in
the operator or—on newer operators—close the control-
source disconnect switch and replace the motor-and-
closing circuit fuseholder.
Step 35
Attach lifting slings to the four lifting rings on the
replaced interrupter container. Do not loop slings from
one end of the container to the other. Carefully lift the
interrupter into the replacement interrupter shipping
crate. Secure the interrupter and close the lid.
Step 36
Ship the replaced interrupter, transportation charges
prepaid, to S&C Electric Company, Repair Center, 1800
Devon Avenue, Chicago, Illinois 60660-1010. To ensure
proper handling, purchasers are asked to obtain from the
nearest S&C Sales Office a special serially numbered
label to place on the shipping crate. Please enclose a
packing slip showing purchase order or requisition
number covering the exchange.

S&C ELECTRIC COMPANY
716-600 INSTRUCTION SHEET
Page 18 of 24
February 11, 2002
S&C Series 2000 Circuit-Switchers Interrupter Replacement
Outdoor Transmission (69 kV through 230 kV)
Installing the Transmitter
When replacing an interrupter on Series 2000 Circuit-
Switchers with the remote gas-density monitor option, the
transmitter must also be replaced. Following are the
replacement and setup instructions for the remote gas-
density monitor transmitter. For installation and operat-
ing instructions for remote gas-density monitors in new
Circuit-Switcher installations, refer to Instruction Sheet
716-530, “S&C Series 2000 Circuit-Switchers: Remote Gas-
Density Monitor.”
Step 37
Before mounting the replacement interrupter to its associ-
ated transition box, locate the red sensor cable on the
base of the interrupter. Cut and remove the wire ties and
the wire tie mounts securing the sensor cable, taking care
not to damage the cable. Do not remove the shorting plug
from the end of the green 6-pin connector at this time. See
Figure 14.
Step 38
On Circuit-Switchers with vertical interrupters (Model
2020, Model 2025, and Model 2030), the transmitter is
mounted in place of the transition box access cover.
Remove the four ⁵⁄₁₆—18³⁄₄ socket-head cap screws
and flat washers that secure the transmitter to the transi-
tion box. Reserve the mounting hardware and set the
replaced transmitter aside in a protected area. See
Figure 15.
ÇCAUTION
Exercise care when mounting the interrupter to the
transition box. The sensor cable is factory-installed on
the interrupter and cannot be replaced in the field if
damaged. Damage to the cable will necessitate
returning the interrupter and transmitter to the
factory for replacement and recalibration.
INTERRUPTERS WITH THE REMOTE GAS-DENSITY MONITOR OPTION
Green
6-pin
connector
Wire ties
Sensor cable
Transmitter antenna
Figure 14. Location of sensor cable.
Cap screws (4)
Figure 15. Transmitter mounted on transition box with
antenna facing the ground. Remove the existing transmit-
ter, and return it with the replaced interrupter.

INSTRUCTION SHEET 716-600
Page 19 of 24
February 11, 2002
S&C ELECTRIC COMPANY
On Circuit-Switchers with horizontal interrupters
(Model 2010, Model 2015, and Model 2040), the transmit-
ter is mounted on an adapter panel. The adapter panel is
mounted in place of the transition box access cover.
Remove the six stainless-steel ⁵⁄₁₆—18³⁄₄hex-head cap
screws that secure the adapter panel to the transition box.
Then remove the four ⁵⁄₁₆—18³⁄₄ cap screws and ESNA
nuts that secure the transmitter to the adapter panel.
Install the replacement transmitter into the adapter panel.
Save the adapter panel mounting hardware and set the
replacement transmitter aside in a protected area. Save
the replaced transmitter and return it to S&C Electric
Company with the replaced interrupter. See Step 36 on
page 11 for details.
Step 39
Before coupling the replacment interrupter to the operat-
ing rod, feed the sensor cable into the top of the transition
box. Make sure the cable is fed through the transition box
on the side of the operating rod that is towards the access
opening. Feeding the sensor cable from behind the operat-
ing rod may cause the cable to catch on the rod during
switch operation. See Figure 16.
Step 40
Mount the replacement interrupter and couple it to the
operating rod, as directed in the instructions for your
model of Circuit-Switcher.
NOTICE
Each transmitter is factory-calibrated to the inter-
rupter with which it is shipped, and must be installed
on its associated interrupter. The serial number asso-
ciated with the interrupter matches the serial number
stamped on the transmitter. Failure to keep trans-
mitters with their associated interrupters can
cause the remote gas-density monitoring system
to malfunction.
NOTICE
Make sure the sensor cable is not caught on the Cir-
cuit-Switcher operating rod. Failure to do so can
cause the remote gas-density monitoring system
to malfunction.
INTERRUPTERS WITH THE REMOTE GAS-DENSITY MONITOR OPTION — Continued
Figure 16. Inside of transition box showing sensor cable.
Feed the cable through the transition box towards the front,
to avoid snagging on the operating rod.
Green
6-pin
connector
Operating
rod
Sensor cable
Sensor cable

S&C ELECTRIC COMPANY
716-600 INSTRUCTION SHEET
Page 20 of 24
February 11, 2002
S&C Series 2000 Circuit-Switchers Interrupter Replacement
Outdoor Transmission (69 kV through 230 kV)
Step 41
Ground the transmitter to the transition box with the sup-
plied grounding strap. Clamp one end of the grounding
strap to the bottom of the transmitter housing, and the
other to the transition box. See Figure 17.
Step 42
With the transmitter and transition box grounded, firmly
plug the black, 2-pin connector from the battery into the
black 2-pin socket on the transmitter circuit board. When
properly installed, the locking tab on the connector will
face away from the battery. See Figure 18.
Step 43
Remove the shorting plug from the green 6-pin connector
located on the red sensor cable. Remove the shorting plug
from the 6-pin socket on the transmitter circuit board.
Firmly plug the green 6-pin connector from the inter-
rupter into the green 6-pin socket on the transmitter cir-
cuit board. See Figure 18.
NOTICE
Make sure the transmitter is fully grounded before
connecting the battery or sensor cables. Static and/or
electrical discharge from the interrupter can
damage the transmitter circuit board and sensor
cable.
INTERRUPTERS WITH THE REMOTE GAS-DENSITY MONITOR OPTION — Continued
Figure 17. Attach one end of the grounding strap to the
transmitter housing, and the other end to the transition
box.
Figure 18. Plug the black 2-pin connector from the battery
into the black 2-pin socket on the transmitter circuit board.
Plug the green 6-pin connector from the interrupter into the
green 6-pin socket on the circuit board.
Green
6-pin
socket
Black 2-pin connector
Grounding strap