A

IB 6.2.13.7- 1
Courtesy of NationalSwitchgear.com

Rev. 2, Feb-98

INSTALLATION / MAINTE NANCE INSTRUCTIONS

Medium Voltage
Vacuum Power Circuit Breakers

ADVAC

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Courtesy of NationalSwitchgear.com

IB 6.2. 13.7 1
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TABLE OF CONTENTS
INTRODUCTION 3

SAFE PRACTICES 4

RECEIVING, HANDLING, AND STORAGE 5

Receiving 5

Handling .5

Storage 5

INSERTION AND REMOVAL 6

Insertion 6

Removal 6

Racking 7

Disconnect Through Test 7

Test Through Connect 7

DESCRIPTION AND OPERATION 12

Mechanism Operation 12

Interlocks 14

Manual Operation of Breaker 15

Electrical Operation 17

Control Scheme 18

MAINTENANCE 20

Mechanism . 20
Truck 22

Control 23

Primary Circuit 23

TROUBLE SHOOTING GUIDE 29

POST ORDER SERVICE 30

These instructions do not purport to cover all details or variations nor to provide for every possible contingency to be met
in connection with installation , operation, or maintenance. Should further information be desired or should particular problems arise
which are not covered sufficiently lor the purchaser 's purpose the matter should be referred to the nearest District Office.
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Mill! IB 6.2 . 13.7- 1

B
-
INTRODUCTION
The purpose of this manual is to provide instructions for unpacking, storage, installation, operation and
maintenance for the ADVAC vacuum circuit breakers. This manual should be carefully read and used
as a guide during installation, initial operation, and maintenance.
The specific ratings of each model circuit breaker are listed on the individual nameplates. The ADVAC
breakers are protective devices. As such, they are maximum rated devices. Therefore, they should not
under any circumstances be applied outside of their nameplate ratings.

WARNING WARNING WARNING WARNING

THE CIRCUIT BREAKERS DESCRIBED IN THIS BOOK ARE DESIGNED AND
TESTED TO OPERATE WITHIN THEIR NAMEPLATE RATINGS. OPERATION
OUTSIDE OF THESE RATINGS MAY CAUSE EQUIPMENT TO FAIL , RESULTING IN
PROPERTY DAMAGE , BODILY INJURY AND DEATH.

ALL SAFETY CODES, SAFETY STANDARDS AND/OR REGULATIONS AS THEY

MAY BE APPLIED TO THIS TYPE OF EQUIPMENT MUST BE STRICTLY
ADHERED TO.

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4
IB 6.2. 13.7- 1

SAFE PRACTICES
speed mechanisms. The design
ADVAC circuit breakers are equipped with high energy and high
provide safe and proper operating sequences. To
includes several interlocks and safely features to
and maintenance of these breakers, the
ensure safety of personnel associated with installation, operation
following recommendations must be followed:
Code, who are familiar with the
Only qualified persons, as defined in the National Electric Safety
equipm ent should be permitted to work on
installation and maintenance of medium voltage circuits and
these breakers.
Read these instructions carefully before attempting any installation
, operation or maintenance of these
breakers.
DO NOT work on an energized breaker.
by means of a visible break and
DO NOT work on a breaker unless all components are disconnected
securely grounded.
circuit.
DO NOT work on a breaker with power supplied to the secondary control
and/or equipment damage.
DO NOT defeat safety interlocks. This may result in bodily injury death
,
DO NOT work on a closed breaker.
DO NOT work on a breaker with a charged closing spring.
g a high voltage circuit.
DO NOT use a circuit breaker by itself as the sole means of isolatin
have the breaker in the disconnect,
DO NOT leave a breaker in an intermediate position in a cell. Always
test or connected position.

IMPORTANT NOTICE:
DARD 1910.269
FAILURE TO OBSERVE THE REQUIREMENTS OF OSHA STAN
ENT. THAT
CAN CAUSE DEATH OR SEVERE BURNS AND DISFIGUREM
ESTER ,
STANDARD SPECIFICALLY PROHIBITS THE WEARING OF POLY
WORKING WITH
ACETATE, NYLON , OR RAYON CLOTHING BY EMPLOYEES
EXPOSURE TO ELECTRIC ARCS OR FLAMES

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Mllll IB 6.2.13.7-1
fL
RECEIVING, HANDLING, AND STORAGE
ADVAC circuit breakers are subject to complete factory production tests and inspection prior to
packaging. The shipping package is designed to provide protection during shipment and to provide
convenient handling. Accessories such as charging handles and racking handles are shipped separately
from the circuit breaker.

Receiving
Immediately upon receipt of the circuit breakers, examine the cartons to determine if any damage or loss
was sustained during transit. If injury or rough handling is evident, file a damage claim at once with the
carrier and promptly notify the nearest District Office. ABB is not responsible for damage of goods after
delivery to the carrier. However, we will lend assistance if notified of claims. Use care in unpacking to
avoid damaging any circuit breaker parts.
Unpack circuit breakers as soon as possible after receipt. If unpacking is delayed, difficulty may be
experienced in making a claim for damages not evident upon receipt. Check the contents of each carton
against the packing list before discarding any packing material. If any discrepancy is discovered, promptly
notify the nearest District Office. Information specifying the purchase order number, carton number and
part numbers of damaged or missing parts should accompany the claim.

Handling
.
ADVAC circuit breaker shipping containers are designed to be handled by fork lift If the container
must be skidded for any distance it is preferable to use roller conveyors of individual pipe rollers.

Once removed from the shipping container, the circuit breaker wheels are designed to move the breaker
across a smooth, prepared surface.
Care must be taken not to damage the secondary locking tab (item 9, page 8) when transporting, rolling,
or handling the ADVAC breakers.
DO NOT pull the circuit breaker by the front handles with the breaker in any position other than full
disconnect.

Storage
Circuit breakers should be installed in their permanent location as soon as possible. If the breakers are
not placed in service for some time, it is advisable to provide adequate means of protection. This may be
done by keeping the breaker in its original shipping container and storing in a warm, dry and
uncontaminated atmosphere. The breakers should be stored to minimize condensation. Moisture can
cause deterioration of metal parts and high voltage insulation.
Prior to storage of the breaker, verification should be made that the breaker is free from shipping damage
and is in satisfactory operating condition. See DESCRIPTION AND OPERATION to verify satisfactory
operating condition.

CAUTION CAUTION CAUTION CAUTION

The shipping containers provided are not designed for stacking.

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IB 6.2 . 13.7 - 1 MINI

INSERTION AND REMOVAL

WARNING WARNING WARNING WARNING

DO NOT ATTEMPT TO INSERT THE CIRCUIT BREAKER INTO ANY CIRCUIT
BREAKER COMPARTMENT PRIOR TO INSPECTION OF THE BREAKER .
COMPARE BREAKER NAMEPLATE RATING WITH SWITCHGEAR RATING. VERIFY
SECONDARY VOLTAGES ON THE BREAKER AND IN THE CIRCUIT BREAKER
COMPARTMENT.
DO NOT ATTEMPT TO INSERT A CLOSED CIRCUIT BREAKER .
ALWAYS INSPECT BREAKER COMPARTMENT TO ENSURE THAT IT IS FREE OF
OBSTRUCTIONS, TOOLS, OR OTHER EQUIPMENT.
Insertion (Refer to Fig. 1 & 2)
(from Withdrawn Position)
1. Align breaker and ramp , dolly or lift truck with circuit breaker compartment
2. Pull handles ( 10) to center (this withdraws Cell Interlock Tabs ( 11 ) allowing breaker to be inserted)
3. Push breaker into breaker compartment with handles. Interlocks may restrict insertion. (Ref.
Interlocks )
4. Align Cell Interlock Tabs with Circuit Breaker Compartment Slots (A )
5. Push Handles out to fully engage Cell Interlock Tabs into Circuit Breaker Compartment Slots
A. Visually check that Cell Interlock Tabs are engaged in Circuit Beaker Compartment Slots ( if Cell
Interlock Tabs are not fully extended, racking is prevented)
B. Breaker is now in the Disconnect Position
Removal (Refer to Fig. 1 & 2)
(to Withdrawn Position )

CAUTION CAUTION CAUTION CAUTION

Do not attempt to remove the breaker from the circuit breaker compartment
without the required ramp, dolly or lift truck. Refer to the specific switchgear
Installation and Maintenance manual for details .
1. Visually check to see the Truck (12) is against the Locator Channel
2. Pull Handles to center (this withdraws Cell Interlock Tabs allowing breaker to be removed and
discharges mechanism)
3. Pull the breaker from Circuit Breaker Compartment with the Handles onto the required transportation
device
4. Breaker is now in the Withdrawn Position.
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Mill! IB 6.2. 13.7- 1

Racking
ADVAC circuit breakers are designed with three positive positions. The Disconnect position allows
only manual operation of the breaker without control power and shutters closed. The Test Position
allows manual and electrical operation of the breaker with control power supplied through the secondary
contacts with shutters closed. As the breaker approaches the Connected position, an increase in racking
force is required to lift the shutters and to engage the primary contacts. In the Connected position the
primaries are fully engaged with shutters open, and electrical operation of the breaker through the
secondaries is still enabled.
1. Engage Racking Handle onto Racking Screw (7)
2. Actuate Position Release Lever (9) to begin racking breaker
A. Clockwise (cw) rotation inserts the breaker towards the primaries
B. Counterclockwise (ccw) rotation withdraws the breaker away from the primaries

Disconnect Through Test

1. Breaker MUST BE OPEN and discharged prior to racking (Ref. Manual Operation of Breaker )
A. Verify Close/Open Indicator shows OPEN
B. Verify Charged/Discharged Indicator shows DISCHARGED
C. Verify Motor Disconnect Switch OFF
(The motor will charge when the secondaries engage if the switch is ON)
2. Four (4) revolutions (40mm) will move the breaker between the Disconnect and Test positions
A. The Disconnect Position is indicated by a positive lock
• Actuate Position Release Lever (9) to begin racking from disconnect position
B. The Test Position is indicated by a positive lock
•Closing is prevented between Disconnect and Test positions
•Control power is available in the Test Position, Shutters are closed.
Test Through Connect
.
1 Breaker MUST BE OPEN before racking (see Electrical Operation)
A. Verify Close/Open Indicator shows OPEN
B. Verify Motor Disconnect Switch is ON
C. Breaker Compartment Door is CLOSED
2. 21 revolutions (210mm) will move the breaker between the Test and Connect positions
A. The Test Position is indicated by a positive lock
•Racking is prevented for a CLOSED breaker
•Actuate and hold the Position Release (9) to begin racking from the Test Position
•Closing is prevented between Test and Connect positions
B. The Connect Position is indicated by a position lock
•Racking is prevented for a CLOSED breaker
•Actuated and hold the Position Release to begin withdrawal from the Connect Position

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IB 6.2. 13.7- 1 MINI

# DESCRIPTION # DESCRIPTION

1 FRONT PLATE ASSY 9 POSITION RELEASE

2 CLOSE PUSH BUTTON 10 HANDLE

3 OPEN PUSH BUTTON 11 CELL INTERLOCK TAB

4 CLOSE/OPEN INDICATOR 12 TRUCK

5 CHARGING PAWL 13 WHEEL

6 CHARGED/DISCHARGED INDICATOR 14 POLE ASSEMBLY

7 RACKING SCREW 15 PRIMARY CONTACT

8 COLLAR

Figure 1: Breaker with Front Plate

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MINI IB 6.2 . 13.7 - 1

B

# DESCRIPTION # DESCRIPTION

A COMPARTMENT SLOTS D SECONDARY DISCONNECTS

B GROUND BAR E WHEEL RAILS

C CODE PLATE F SHUTTERS

Figure 2: Breaker Compartment

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IB 6.2.13.7- 1

DISCONNECT TEST CONNECT

0 MM 40 MM 250 MM
Distance from 25 REVOLUTIONS
0 REVOLUTIONS 4 REVOLUTIONS
Disconnect
0 INCHES 1.57 INCHES 9.84 INCHES

Manual Operation YES YES NOT RECOMMENDED

Electrical Operation NO YES YES
Control Power NO YES YES
CLOSED CLOSED OPEN
Shutter
Primary Engaged NO NO YES
Position Indication POSITIVE LOCK & CELL POSITIVE LOCK & CELL POSITIVE LOCK & CELL
DECAL DECAL DECAL
Interlocks INTERFERENCE RELEASE LEVER CLOSING PREVENTED
BLOCKING PREVENTS UNTIL IN FULL
INSERTION CONNECT
RELEASE LEVER RELEASE LEVER
Requirements To BREAKER OPEN BREAKER OPEN BREAKER OPEN
Rack breaker from POSITION RELEASE POSITION RELEASE POSITION RELEASE
Position LEVER ACTUATED LEVER ACTUATED LEVER ACTUATED
A, B A A
Notes
Table 1 : Racking

Notes:
A. Closed door racking is recommended between ALL positions. Racking with the breaker compartment
door open between any position defeats the safety provided by SafeGear design and construction
.

B. Motor Disconnect Switch should be OFF until secondaries are engaged in the Test Position.

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m»ip IB 6.2. 13.7-1

1
1

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IB 6.2.13.7- 1

DESCRIPTION AND OPERATION

Closing Spring (11)
The ADVAC medium voltage circuit breaker uses a spring for stored energy. The
but also assists with
is a toroidal spring. This spring supplies the force necessary to close the breaker
sion type ) are charged along
the opening. During the closing operation, Opening Springs (6) (compres
with Contact Springs (4) (also compression type) in the pole assembl y. During the opening operation, the
interrupte r contacts .
Contact Springs and Opening Springs supply the driving force open
to the

Mechanism Operation (Refer to Fig. 3)

1. Manual or electrical charging rotates the Closing Spring (11) 360° to charge
A. Motor limit switch (17) changes state and removes control power from the motor
B. Closing Spring Charged/Discharged Indicator changes to show CHARGED
C. Close Trigger (20) is set against Half Shaft (19)
2. Manual or electric close rotates half shaft (19) to release Close Trigger
A. Close Trigger releases Stop Disk (9) through a series of linkages

B. The Closing Spring rotates Main Shaft (12) 270°

C. The Cams (8) fixed on Main Shaft actuate Rocker Arms for each pole

•Rocker Arms compress Opening Springs

•Rocker Arms drive interrupter Push Rods (5)
•Push Rods close interrupter Moving Contact (3)
•Push Rods charge Contact Springs (4)
D. Main Shaft actuates Auxiliary Shaft (15) changing Auxiliary Contacts ( 16
)

•52a contacts close

•52b contacts open
3. Manual or electric opening rotates half shaft to release Open Trigger
A . Open Trigger releases Stop Disk through a series of linkages
Main Shaft 90°
B. Opening Springs, Contact Springs and Closing Spring discharge, rotating the
(discharging the 360° charge on the Closing Spring)
er
C. Contact Springs discharge driving Push Rod to begin opening the Interrupt contacts
r Contacts
D. Opening Springs discharge driving the Rocker Arms to fully open the Interrupte
E. Closing Spring discharges rotating the
Cam 90°
F. Main Shaft actuates Auxiliary Shaft changing Auxiliary Contacts (16)
•52a contacts open ; 52b contacts close

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Mllll IB 6.2. 13.7 -1

0
©
©

# DESCRIPTION # DESCRIPTION

1 VACUUM INTERRUPTER 12 MAIN SHAFT

2 STATIONARY CONTACT 13 CHARGING PAWL

3 MOVING CONTACT 14 CHARGING HANDLE

4 CONTACT SPRINGS 15 AUXILIARY SHAFT

5 PUSH ROD 16 AUXILIARY CONTACT

6 OPENING SPRING 17 MOTOR LIMIT SWITCH

7 ROCKER ARM 18 CLOSE PUSHBUTTON

8 CAM 19 HALF SHAFT

9 STOP DISK 20 CLOSING TRIGGER

10 MOTOR DISCONNECT SWITCH 21 OPENING TRIGGER

11 CLOSING SPRING
Figure 3: Breaker

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IB 6.2. 13.7- 1 Mill!

Interlocks
The ADVAC breaker contains a number of interlocks. A description of each interlock follows as
encountered during racking of the breaker into the breaker compartment.

DANGER DANGER DANGER DANGER

MODIFICATION TO INTERLOCKS CAN RESULT IN HAZARDOUS CONDITIONS TO
PERSONNEL AND EQUIPMENT. DO NOT OVERRIDE, BY-PASS OR ADJUST
INTERLOCKS.
INTERFERENCE BLOCKING: A code plate in the breaker compartment prevents under rated breakers from
being inserted into higher rated compartments. The code plate rating includes continuous current,
interrupting current, close and latch capability and maximum voltage. Breakers with the same or higher
code plate rating can be inserted into a compartment of equal or lower value.
POSITIVE POSITION FOR RACKING: The racking mechanism is blocked unless the interlock tabs are fully
extended into the compartment slots.
POSITIVE POSITION FOR REMOVAL: The handle release pin prevents withdrawing the breaker from the
.
compartment by blocking withdrawal of the locking tabs The handle release pin blocks the handles
unless the breaker is in the Disconnect position.

CAUTION CAUTION CAUTION CAUTION

The closing spring may be manually recharged in the disconnect and withdrawn
positions. Verify that the breaker is OPEN and the Closing Spring is DISCHARGED
before removing the front cover.

AUTOMATIC SPRING DISCHARGE (ASD): This maintenance interlock discharges the closing spring and
.
opens the breaker Activation of the ASD occurs when withdrawing the locking tabs in the Disconnect
.
position
POSITION INTERLOCKS: The Position Release Lever must be depressed in order to begin racking the
breaker in any direction from any positive position (Disconnect, Test, or Connect ). The release lever is
blocked from actuation when the breaker is CLOSED. The ability to close the breaker is blocked unless
the breaker is in one of the three positive positions.

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Mllll IB 6.2 . 13.7- 1

B
Manual Operation of Breaker
(Refer to Table 1 & Fig. 1)
The breaker can be operated manually or electrically. The manual Charging Handle is required for
manual operation.
t . Inspect initial state of the breaker to determine the operations available (Refer to Table 1 and Fig.i)
A. Close/Open indicator (4)
B. Closing Spring Charged/Discharged indicator (6)
Closing Spring Indicator (6) Mechanism (4) Operations Available Proceed to
Step
Discharged Open None Available 2

Discharged Closed Open 6

Charged Open Close-Open 5

Charged Closed Open-Close-Open 7

Tabie 2: Operations
2. Insert manual Charge Handle into Charging Pawl (5)
3. Charge breaker by up and down motions (approximately 25 times)
A. Closing Spring completely charged
•Charge handle has free movement
•Closing Spring Charged/Discharged Indicator changes to CHARGE
4. Remove Charging Handle
A. Breaker ready to perform Close-Open (C-O) operation
5. Manual Close breaker via Close Push Button (2)
A. Breaker Closes
•Close/Open Indicator changes to CLOSED
•Closing Spring Charged/Discharged Indicator changes to DISCHARGED
B. Breaker ready to perform Open (O) operation (if O-C-O is desired, see Step 7)
6. Manual open breaker via Open Push Button (3)
A. Breaker opens

•Close/Open Indicator changes to OPEN

•Closing Spring Charged/Discharged Indicator remains DISCHARGED
B. No additional operations available, return to Step 3 if additional operation is desired

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IB 6.2. 13.7- 1 mm
7. If an Open-Close-Open (O-C-O) operation is desired:

A. Recharge the breaker after step 5 (Steps 3,4) .;

B. Breaker now ready to perform (O-C-O) (Steps 6,5,6)

Closing Spring Charged/Discharged Indicator will remain CHARGED after first Open

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MINI IB 6.2.13.7 -1 7

Electrical Operation
To operate the breaker electrically, control power must be available. The sectioh, Racking, describes the
application of control power through the secondary disconnect when the breaker is in the Test and
Connect positions. Optional test jumpers and test cabinets to connect control power to a withdrawn
circuit breaker are available (contact the local ABB sales office for details).
1. Inspect initial state of the breaker to determine the operations available
A. Close/Open Indicator
B. Closing Spring Charged/Discharged Indicator
C. Circuit breaker position Test or Connect (or control power applied externally, if withdrawn)
D. Spring Charging Motor Switch
2. Turn Spring Charging Motor Switch to ON with available control power
A. Charging motor energized
•Charge time approximately 8-10 seconds (nominal voltage)
•Closing Spring Charged/Discharged Indicator shows CHARGED
B. Breaker ready to perform C-0 operation
3. Close breaker using manual close push-button or by electrical signal to the rotary close coil (after close
operation the motor charges unless control power is removed)
A. Close coil rotates half shaft and closes breaker
•Close/Open Indicator changes to CLOSED
•Closing Spring Charged/Discharged Indicator changes to DISCHARGED
•Charging motor energized
•Charge time approximately 8-10 seconds (nominal voltage)
•Closing Spring Charged/Discharged Indicator shows CHARGED
-
B. Breaker ready to perform O C-O operation
4. Open breaker using manual open push-button or by electrical signal to the rotary open coil
A. Open coil rotates half shaft and opens breaker
•Close/Open Indicator changes to OPEN
•Closing Spring Charged/Discharged Indicator remains CHARGED
B. Breaker ready to perform C-0 operation
5. Breaker ready to continue operations returning to step 3 above until the Spring Charging Motor Switch
is turned OFF or control power is removed. Once control power is removed from the charging motor
the Closing Spring will not recharge after a close operation

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1 MINI
8 IB 6.2. 13.7- 1

Control Scheme
ADVAC circuit breakers are available with two control packages. The standard package (Fig 7
)
includes charge, close, and open functions, and 4a and 4b auxiliary contacts for customer use. The
optional package (Fig 8) adds to the standard package 5a and 4b auxiliary contacts for customer use as
well as ah optional second open coil and/or under voltage ( UV) open/trip device if required. Refer
to
Figure 5: Sequence of Operation for a summary of the timing sequence.
1. Initial State
A. Closing Spring Discharged (33Lsa Open/33Lsb Closed)
B. Breaker Open (52a Open/52b Closed)
2. Upon available control power
A. Motor Disconnect Switch ON
B. Secondary engaged
C. Motor charges through 33Lsb
3. Closing spring charged
A. 33Lsa closes
B. 33Lsb opens
(removing control power to motor)
C. Breaker ready to close
4. Electrical control pulse sent to close circuit
A. Current energizes 52x (Close Coil is not rated for continuous duty )
•Coil rotates half shaft and closes breaker
- 52a closes
- 52b opens
•Coil de-energizes with release of signal and as 52b opens and 52Yb opens
B. Current energizes 52 Y
( Y Coil is not rated for continuous duty )

•52Ya closes
•52Yb opens
C. Closing Spring Discharges
•33Lsa closes
•33Lsb opens
D. Closing Spring charged
•33Lsa closes
•33Lsb opens (removing control power to motor)
•Breaker ready to perform O-C-O operation
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MIPII IB 6.2. 13.7 - 1

B
5. Electrical control pulse sent to open circuit
A. Current energizes 52TC (Open Coil is not rated for continuous duty)
•Coil rotates half shaft
- 52a opens
- 52b closes
•Breaker Open
B. Breaker ready to perform C-0 operation

Control voltage available to charging motor 33Lsb

r --
• Main Spring Charged 33Lsb 'open "
: — • Close Signal
/ 4
--- Start of Closing Operation
•• Close operation complete

•• Main spring discharged 33Lsb “closed "

- Opening springs charged
- Compression Springs charged
- - - Main Spring Charged 33lsb "open*
t *

f" •• • Start of Opening Operation

...... Open operation complete
: - - - Opening springs discharged
:- - - - - Compression Springs dischargee
ON
Charging Motor OFF

Charged
Closing Spring Discharged

Charged
Opening Spring / Discharged

Charged
Contact Spring Discharged

ON
Closing Coil 7 \ OFF

Open Coil rx ON

OFF

ON
Circuit Breaker OFF

* * *
Closing Time Opening Time

Figure 4: Sequence of Operation

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MINI
i IB 6.2. 13.7- 1

MAINTENANCE
ADVAC circuit breakers are designed for a minimum amount of mainten
ance. Circuit breakers in a
or corrosive environments require
clean, non-corrosive environment require annual inspection. Dusty
ted fault.
inspection more often. Inspection is required following each interrup
DO NOT work on an energized breaker.
by means of a visible break and
DO NOT work on a breaker unless all components are disconnected
securely grounded.
DO NOT work on a breaker with power supplied to the secondary control
circuit.
and/or equipment damage.
DO NOT defeat safety interlocks. This may result in bodily injury, death
DO NOT work on a closed breaker.
DO NOT work an a breaker with a charged closing spring.
DO NOT use a circuit breaker by itself as the sole means of isolating
a high voltage circuit.
have the breaker in the disconnect,
DO NOT leave a breaker in an intermediate position in a cell . Always
test or connected position.

Mechanism (Refer to Fig. 5a & 5b)

and operation during routine
The mechanism requires visual inspection of hardware, lubrication
inspection.
and then Open the breaker . Verify
Discharge the closing springs by pressing the Manual Close Button
river. Correct loose or missing
springs are discharged. Remove the front cover with a Phillips screwd
hardware.
Linkage (P). Verify lubrication on
Always lubricate the working surface of the Cams (B) and the Motor
ism (See Fig 5b). Remove any
latching surfaces located above the Charging Motor (D) in the mechan
( ABB No . 712994 A , 4 oz. tube). If
grease on the breaker frame. Use Anderol 757 grease for lubrication
reapply lubrication.
the grease becomes caked and dirty , remove with a clean cloth and
and smooth
Verify that the operation of the manual close and trip actuators is free
ism a minimum of 2-5 operations
Replace the front cover before operation. Manually operate the mechan
to exercise the mechanism .

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4 IB 6.2.13.7 -1

Truck (Refer to Fig. 6)

routine maintenance .
The truck requires visual inspection of hardware, lubrication and operations during
(1) and wheels (2) for
With the breaker outside the cell, verify all visible hardware including handles
tightness. Wheels should rotate freely by hand movement. Replace or tighten
any missing or loose
hardware.
breaker to the connect
With the breaker outside the cell, rotate the racking screw as though racking the
truck that need to be inspecte d and lubricated.
position. This process will expose surfaces inside the (5) during the
Screw ( 4) and Position Release Shaft
Lubricate the exposed parts, specifically the Racking
operation. Inspect breaker locking tabs ( and
3) Seconda ry Locking Tab ( 6) for any damage . Return
truck to disconnect position.

Figure 6: Truck

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Control {Secondary Wiring)

The secondary wiring requires visual inspection of hardware, low-frequency withstand voltage test and 2-
5 operations during routine maintenance. Disconnect control power before verifying secondary hardware
and low-frequency withstand voltage testing.
Remove the front cover with a Philips screwdriver. Correct any loose or missing mounting hardware.
Verify the ground wire connection to the frame and the connectors' alignment on the electrical
components. Visually inspect the secondary plug and correct any pins that may have become displaced.

CAUTION CAUTION CAUTION CAUTION

The motor circuit must be isolated , motor disconnect switch OFF during low
frequency withstand voltage testing of the secondary circuit . Damage to the
motor may result from full secondary low -frequency withstand voltage .

To verify the integrity of the secondary insulation, perform the following low-frequency withstand voltage
test:
.
1 Motor Disconnect Switch OFF
2. Connect all pins from the secondary to a test wire
3. Connect test wire to the high potential lead of the test machine
.
4 Ground the breaker frame
5. Start machine with output potential at zero
6. Increase the potential to the required insulation test voltage (1125 VAC RMS)
7. Hold for one minute
.
8 Reduce potential to zero and turn off machine

A successful withstand indicates satisfactory insulation strength of the secondary circuit. Failing
insulation will not sustain the voltage across the secondary. Replace the breaker control wiring if the
insulation fails during low-frequency withstand voltage testing.
Replace the front cover before operation. Verify the electrical operation with 2- 5 operations in the Test
position or with a remote power supply.

Primary Circuit (Pole)

The primary circuit requires visual inspection of hardware, low-frequency withstand voltage test and
lubrication during routine maintenance.
The insulation material should be clean and free of structural cracks. Some minor cracks are inherent in
the insulation material. Inspect for structural cracks and replace damaged parts.
Dirt or dust may create a dielectric path on the insulation. Remove dust and dirt with a clean lint free
cloth. Apply distilled water to the cloth to remove any difficult dirt. DO NOT return the breaker into
service until the insulation surfaces are dry.
Lubrication on the primary contacts should be inspected during routine maintenance. Use NO-OX -ID
special grade- A grease for the lubrication of primary contacts (ABB No. 713222A, 1 Pt. can).

FIELD NOTES
 4k IIII
Courtesy of NationalSwitchgear.com

IB 6.2 . 13.7- 1 MIPII

CAUTION CAUTION CAUTION CAUTION

Applying abnormally high voltage across a pair of contacts in vacuum may
produce X-radiation. The radiation may increase with the increase in voltage
and/or decrease in contact spacing. It is recommended that all operating
personnel stand at least one meter away and in front of the circuit breaker .

To verify the integrity of the primary insulation perform the following low - frequency withstand voltage test:
1. Close the breaker (no control power supplied to breaker)
A. Connect the high potential lead to one pole
B. Ground the remaining poles and breaker frame
2. Start machine with output potential at zero
.
3 Increase the potential to the rated voltage
( see Table 3)
4. Hold for one minute
.
5 Decrease potential and turn off machine
6. Repeat for the remaining poles

A successful withstand indicates satisfactory insulation strength of the primary circuit.

WARNING WARNING WARNINGS WARNING

THE INTERNAL SHIELD OF A VACUUM INTERRUPTER CAN ACQUIRE AN "

ELECTRIC CHARGE WHICH CAN BE RETAINED EVEN AFTER THEVOLTAGE IS

REMOVED. DISCHARGE THE MID-BAND RING WITH A GROUNDING STICK
BEFORE WORKING ON THE DEVICE:.

To verify the integrity of the vacuum interrupters perform the following low-frequency withstand voltage
test:
1. Open the breaker (no control power supplied to breaker)
A. Connect the high potential lead to one terminal
B. Ground the remaining 5 terminals and breaker frame
.
2 Start machine with output potential at zero
3. Increase the potential to the rated voltage
(see Table 3)
4. Hold for one minute
5. Decrease potential and turn off machine
6. Repeat for the remaining 5 terminals

A successful withstand indicates satisfactory vacuum integrity.

FIELD NOTES
Courtesy of NationalSwitchgear.com

i l Bill
Mill!
Replace interrupters that fail to sustain the voltage across the open contacts.
IB 6.2. 13.7 - 1
i
a
Do not let the peak DC voltage exceed the peak of the corresponding AC RMS .test voltage while using
DC high potential machine.

Rated Maximum Voltage Dielectric Test Value

kV, rms 1 Minute Dry rms kV
4.76 15
8.25 27
15 27
Table 3: Primary Low-Frequency Withstand Voltages

FIELD NOTES
 A »1»
Courtesy of NationalSwitchgear.com

i IB 6.2.13.7-1

i
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** " OPTIONAL TRIP COIL MONITOR W!RE.

CARE MUST BEL TAKEN TO AVOID FULL
VCITAGE / CURRENT TO TRIP COIL LONGER
THAN PULSE DURATION .
AUXILIARY

FIGURE 7: SCHEMATIC - STANDARD WIRING

DEVICE FUNCTION

27 Undervoltage

33 Spring Charge Position Switch

52 AC Circuit Breaker

88 Spring Charging Motor

LS Umit Switch

M Motor
TC Open/Trip Coil

UV Undervoltage Coil

X Close Coil

“ a" Contact open when circuit breaker is open and closes when circuit breaker is closed
Mb" Contact closed when circuit breaker is open and opens when circuit breaker is closed

FIELD NOTES
Courtesy of NationalSwitchgear.com

A III! 2
MI9II IB 6.2 . 13.7- 1 7

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FIGURE 8: OPTIONAL WIRING SCHEMATIC

FIELD NOTES
 *

A » 11
Courtesy of NationalSwitchgear.com

8 IB 6.2 .13.7- 1
min

- -
SPRING C ARC E POSITION SWI’CH ( Si ) w»E , wiC[ !
’oI; CLOSE COiL 0= EN CO . I
WOTOR DISCONNECT t LDCATiQ
o ^ -N # 1 0:0 0
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SWITCH
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191 *7 OPE 7 '0
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CIRCUIT 5 = £ AKER CONTACT SWITCH ( S 2 ) *2 9 209 9 1
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C RCUIT 5 EAKER CONTACT SWITCH
' 5
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FIGURE 9: STANDARD WIRING . POINT TO POINT DIAGRAM 1

SPRING CHARGE POSITION SWITCH (Si ) WIRE WIRE T WIRE

PN # LOCATION ^N1 # LOCATION PIN # I LOCATION
CLOSE COIL OPEN CO .
" MOTOR DISCONNECT
SWITCH
' 1
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05
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5 1 9
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3 209 3 ' 03
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4 208 4 4 701
5 9 5 6 5 I gig
& 10 6 9 6 I 816
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9
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CIRCUIT ?;- AKEP CONTACT SWITCH ( S 2)
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"* 303 *2 '3 2ND OPEN 10 208 ID 51 '01 856

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i UNOERVOLTAGE COH RECTIFIER ( PF 3) :
1 OPEN 12 55 2 560
1 *1 rvpj ;y INI 13 OPEN 1 j 56 13 «63
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f WIRE MOTOR 14 OPEN 14 59 14 864

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f 201
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1 W1 . 15
16
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2 i
* 501 ML : 17 7 1 14 17 853
18 18 53 3 I 65
CIRCUIT = = £ AKER CONTACT SWITCH ( S 3)
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3 * 23 6
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' 9 I 857 *
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0 4 TC 4 19
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22
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22
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61
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OPEN -
520
J MO Mb

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* 2* OPEN 24 303 *4 OPEN
f 25 OPEN 25 OPEN
51 Mr 60 » • 2
2 ND OPEN COIL
PLUG 1 PLUG 2

CIRCUIT BREAKER CONTACT SWITCH ( $ )

94 «1 5 85
' 813
i
153 * NOTE: DO NOT USE PIN
1 NOR 25 FOR GROUND.
7
11 : 7«32<
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CIRCUIT BREAKER CONTACT SWITCH ( S 5)
133 85»
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*
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1
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TV»C :»
C 4Rt MUST BE TAKEN TO 4X00 FVU
a
VOLl4 7CuP»CNT TO 7PIP COIL LDN f ®
THAN PULSE DURATION . *
h
52 o
^ 52o *20 S 26
!
i
56 6« 864 «2

FIGURE 10: OPTIONAL WIRING , POINT TO POINT DIAGRAM

FIELD NOTES
Courtesy of NationalSwitchgear.com

it lilt
MINI
TROUBLE SHOOTING GUIDE
i
IB 6.2. 13.7 - 1
-

Symptom Potential Remedy

Breaker will not RACK Tabs are not engaged in cubicle Align breaker with cubicle
Locked in Position Hold Position Release to start
racking
Breaker Closed Breaker must be open to rack
Breaker will not CHARGE Motor switch off Turn Motor Disconnect Switch ON
No control power Breaker in Disconnect Position
Motor wilt not run Replace Motor
Spring charged View Spring Charge Indicator

Breaker will not CLOSE Closing spring not charged Charge Closing spring
Breaker already closed View OPEN/CLOSE Indicator
Breaker is not in positive position Rack into Disconnect, Test or
Connect Position
No electrical close signal Verify control power available
Check close solenoid
Check for loose wiring
Breaker will not OPEN Breaker already open View OPEN/CLOSE Indicator
No electrical open signal Verify control power available
Check open solenoid
Breaker will not DISENGAGE Handles can not disengage tabs Rack breaker into Disconnect
( from Cubicle) Position
Breaker not in Disconnect
Position Rack breaker until handles
disengage tabs from cubicle

FIELD NOTES
 A Iftlft
Courtesy of NationalSwitchgear.com

IB 6.2 . 13.7- 1 Mllll

POST ORDER SERVICE

When requesting service or renewal parts information, please have the breaker identification available.
The breaker rating label contains the serial number, catalog number and wiring diagram number.

Breaker Catalog Number:

Breaker Serial Number:
Wiring Diagram Number:

POST ORDER SERVICE RENEWAL PARTS ABB SERVICE HELP DESK

(8am to 4:30pm M-F EST) (8am to 6pm M-F EST)

Call: 1-800-929-SWGR 1-800-626-4999

1-407-323-8220 Ext. 131

Fax: 1-407-321-2759

ABB Power T&D Company Inc.

Distribution Systems Division

Division Headquarters
Switchgear Systems Circuit Breaker Operations
IEC Products & Systems OEM Components
After -market Components KIRK Interlock Systems Power Distribution Centers

201 Hickman Drive 2300 Mechanicsville Highway 12257A F.M. 529

Sanford, FL 32771
(407) 323-8220
Florence, SC 29501
(803) 665-4144
Houston, TX 77041
(713) 466-1550
Aim
(407) 322 -8934 (Fax) ( 803) 667-5109 (Fax) (713) 466-0016 (Fax) Mllll