ADVAC Technical Guide 1VAL050501-TG Rev A

8/2/2019 ADVAC Technical Guide 1VAL050501-TG Rev A

1/20

ADVACTM technical guideAdvanced design vacuum circuit breakers


2/202 ADVAC circuit breaker | Technical guide

ADVAC

Universal applications:

Medium voltage motor starting applications

Capacitor switching

Retrofit applications to replace existing circuit breakers in

repetitive duty applications

ADVAC circuit breakers have been fully tested to the most

recent versions of ANSI C37.04, C37.06,and C37.09. Using "k"

factor equals 1 as the test criteria.

Available for 5, 8.25, and 15 kVapplications, in stationary and drawoutforms.


3/20Technical guide | ADVAC circuit breaker

The new ADVAC circuit breaker continues to improve upon pre-

vious designs. Although some aspects remain unchanged, the

differences set this generation of circuit breakers apart from the

rest. The operating mechanism was refreshed with the EL me-

chanism featuring quick and easy accessory installations. New

programmable smart coils provide close, open, and under-

voltage actuation of the breaker. All models feature embedded

poles that attain excellent dielectric and thermal capabilities as

well as provide superior protection against outside influences.

ADVAC. The circuit breaker.



ADVAC

A sturdy metal frame provides the support for the operating me-

chanism and the poles. This frame also allows for the breaker

to be mounted as a fixed version. The operating mechanism

harnesses stored energy and free trip allowing the opening

and closing operations to be independent of the operator. Theoperating mechanism is a simple module containing the electric

motor and gears necessary to provide charging of the closing

spring. This construction allows for simple removal of the me-

chanism as a complete assembly and greatly increases the relia-

bility of the apparatus. The mechanism can also be customized

with various accessories that are quick and easy to install. The

new smart coils integrate all necessary components required for

electrical operation of the breaker. The smart coils are simple to

install due to their modular design.

Smart coils

Auxiliary contacts

Charging motor

Manual charging leverEL mechanism

Summary of benefits:

Manual provisions to charge, close, and open the breaker

Built in charging lever

EL mechanism features extremely limited and simple

maintenance

Mechanical anti-pumping device supplies as standard

Quick and easy smart coil installation



The vacuum interrupter assembly consists of the interrupter and

the current carrying parts completely embedded in a proprietary

epoxy resin. Thermal performance of the interrupter is improved

as the epoxy resin draws heat away from the hot spots for a

more even heat distribution. Moreover, the interrupter pole as-

sembly is fully skirted so that push rod and other moving parts

of the current transfer area are isolated and protected from

external influences. As a result, accumulations of dust, dirt, and

condensation do not increase tracking and partial discharge as

they do in non-embedded designs.

AMVAC. Qualities that convince.

Maintenance free vacuum interrupterand current carrying parts in oneembedded assembly



Smart coils provide electrical control of the mechanical func-

tions of the circuit breaker. One open and one close coil are

installed as standard parts for basic circuit breaker operation.

An additional open coil can be easily installed and wired to a

circuit completely separate from the first open coil. An under-

voltage release can also be easily installed to provide circuit

breaker opening if there is a notable drop in voltage. The coils

can both operate in direct and alternating current. Installationof these coils only involves securing the coil with a couple of

screws and connecting a wire plug. The coils are programmed

at the factory and ready to install upon arrival.

ADVAC. Smart coils.

Open, close, and undervoltage coilsallow remote operation of circuit breakerfunctions.



ADVAC. Stored energy operating mechanism.

ADVAC uses a simple, front-accessible stored energy operating

mechanism designed specifically for use with vacuum technolo-

gy. This provides the benefits of dependable vacuum interrup-

ters with advanced contact design and proven reliability, without

the complexity of mechanisms and linkages found in previous

generation circuit breakers.

The EL mechanism can be charged manually using the spring

charging lever or electrically by the spring charging gear motor

While activating one of the above mentioned methods, the cam

(2) on the rotating operating shaft (1) move the closing lever

assembly (3) to charge the closing spring.

A part of the closing springs force works on the closing hook

through the closing lever assembly and the pin of the cam/tog

le assembly (1). The closing hook remains locked by the closin

shaft (2) and the opening hook reaches its position where it

receives the central hook of the cam/toggle assembly (3). The

breaker signals that it is charged.



Activating the closing push button rotates the closing shaft and

releases the closing hook (1). The stored energy of the closing

spring is transferred to the closing lever assembly (2) which pu-

shes the long levers of the cam/toggle assembly connected by

a pin (3). The long levers move the main shaft counter-clock-

wise (4) which transfers the motion to the push rods connected

to the contacts in the vacuum interrupters. The breaker signals

that it is closed

The long levers reach their settled position (1) once the breaker

is closed and are held by the central hook of the cam/toggle

assembly (3). The contact springs inside the poles and the ope-

ning spring inside the frame are charged. The contact springs

maintain contact pressure while the breaker is in the closedposition. The central hook applies force to the opening hook (4)

which is locked by the opening shaft (5).

The charging motor (if present) automatically rotates the opera-

ting mechanism. The closing spring is now charged again and

ready for the next closing operation.

Activating the opening push button rotates the opening shaft

and releases the opening hook (1). This action releases the

central hook of the cam/toggle assembly (2) allowing the con-

tact and opening springs to transfer their energy to the long

levers (3). The main shaft rotates clockwise (4) and the breaker

signals that it is open.



ADVAC. Technical data.

Table 1. Short circuit ratings

Voltage

Class

FLC

(Amps)

Isc (kA) Type/Rating Max. Wave volta-

ge (kV, rms)

Max. Sym. Inter-

rupt & STC (kA,

rms)

Close & Latch

(kA, rms)

Lightning Impulse

Withstand (BIL) (kV,

Crest)

Low Frequenc

Withstand (H

Pot) (kV, rms

5

1200

25 ADVAC 05.12.25 4.76 25 65 60 19

31.5 ADVAC 05.12.31 4.76 31.5 82 60 19

40 ADVAC 05.12.40 4.76 40 104 60 19

50 ADVAC 05.12.50 4.76 50 130 60 19

2000

25 ADVAC 05.20.25 4.76 25 65 60 19

31.5 ADVAC 05.20.31 4.76 31.5 82 60 19

40 ADVAC 05.20.40 4.76 40 104 60 19

50 ADVAC 05.20.50 4.76 50 130 60 19

3000

25 ADVAC 05.30.25 4.76 25 65 60 19

31.5 ADVAC 05.30.31 4.76 31.5 82 60 19

40 ADVAC 05.30.40 4.76 40 104 60 19

50 ADVAC 05.30.50 4.76 50 130 60 19

8.25

1200

40

ADVAC 08.12.40 8.25 40 104 95 36

2000 ADVAC 08.20.40 8.25 40 104 95 36

3000 ADVAC 08.30.40 8.25 40 104 95 36

15

1200

20 ADVAC 15.12.20 15 20 52 95 36

25 ADVAC 15.12.25 15 25 65 95 36

31.5 ADVAC 15.12.31 15 31.5 82 95 36

40 ADVAC 15.12.40 15 40 104 95 36

50 ADVAC 15.12.50 15 50 130 95 36

2000

20 ADVAC 15.20.20 15 20 52 95 36

25 ADVAC 15.20.25 15 25 65 95 36

31.5 ADVAC 15.20.31 15 31.5 82 95 36

40 ADVAC 15.20.40 15 40 104 95 36

50 ADVAC 15.20.50 15 50 130 95 36

3000

20 ADVAC 15.30.20 15 20 52 95 36

25 ADVAC 15.30.25 15 25 65 95 36

31.5 ADVAC 15.30.31 15 31.5 82 95 36

40 ADVAC 15.30.40 15 40 104 95 36

50 ADVAC 15.30.50 15 50 130 95 36



Table 2. Capacitor bank switching ratings

Voltage

Class

FLC (Amps) Isc (kA) Type/Rating Max. Sym. Interrupt

& STC (kA, rms)

Capacitor Switching Ratings

5

1200

25 ADVAC 05.12.25 25 C2 630A C2 rated 15kA Peak 2.0 Khz

31.5 ADVAC 05.12.31 31.5 C1 Rated cable charging current 10A

40 ADVAC 05.12.40 40 C1 Rated cable charging current 10A


2000





3000


31.5 ADVAC 05.30.31 31.5 C2 1200A C2 rated 15kA Peak 2.0 Khz



8.25

1200

40

ADVAC 08.12.40 40 C2 1200A C2 rated 15kA Peak 2.0 Khz



15

1200






2000



31.5 ADVAC 15.20.31 31.5 C1 Rated cable charging current 25A 40 ADVAC 15.20.40 40 C2 1200A C2 rated 15kA Peak 2.0 Khz


3000



31.5 ADVAC 15.30.31 31.5 C2 1200A C2 rated 15kA Peak 2.0 Khz





Table 3. Timing characteristics

Voltage

Class

FLC

(Amps) Isc (kA) Type/Rating

Max. Sym.

Interrupt & STC

(kA, rms)

Interrupt Time

(cycles)

Opening time

(ms) 3 cycles

Opening time

(ms) 5 cyc les Clos ing time

5

1200

25 ADVAC 05.12.25 25 3 27.5-33 N.A. 30-60

31.5 ADVAC 05.12.31 31.5 3 22.9-34 N.A. 30-60

40 ADVAC 05.12.40 40 5 NA 60-70.9 50-80

50 ADVAC 05.12.50 50 5 NA 57.5-70.3 50-80

2000

25 ADVAC 05.20.25 25 3 22.9-34 N.A. 30-60

31.5 ADVAC 05.20.31 31.5 3 22.9-34 N.A. 30-60

40 ADVAC 05.20.40 40 3 26.4-34.3 N.A. 50-80

50 ADVAC 05.20.50 50 5 NA 57.5-70.3 50-80

3000

25 ADVAC 05.30.25 25 3 26.4-34.3 N.A. 50-80

31.5 ADVAC 05.30.31 31.5 3 26.4-34.3 N.A. 50-80

40 ADVAC 05.30.40 40 3 26.4-34.3 N.A. 50-80

50 ADVAC 05.30.50 50 5 NA 57.5-70.3 50-80

8.25

1200

40

ADVAC 08.12.40 40 3 26.4-34.3 N.A. 50-80

2000 ADVAC 08.20.40 40 3 26.4-34.3 N.A. 50-80

3000 ADVAC 08.30.40 40 3 26.4-34.3 N.A. 50-80

15

1200

20 ADVAC 15.12.20 20 3 27.5-33 N.A. 30-60

25 ADVAC 15.12.25 25 3 27.5-33 N.A. 30-60

31.5 ADVAC 15.12.31 31.5 3 22.9-34 N.A. 30-60

40 ADVAC 15.12.40 40 3 26.4-34.3 N.A. 50-80

50 ADVAC 15.12.50 50 3 26.3-38.6 N.A. 50-80

2000

20 ADVAC 15.20.20 20 3 22.9-34 N.A. 30-60

25 ADVAC 15.20.25 25 3 22.9-34 N.A. 30-6031.5 ADVAC 15.20.31 31.5 3 22.9-34 N.A. 30-60

40 ADVAC 15.20.40 40 3 26.4-34.3 N.A. 50-80

50 ADVAC 15.20.50 50 3 26.3-38.6 N.A. 50-80

3000

20 ADVAC 15.30.20 20 3 26.4-34.3 N.A. 50-80

25 ADVAC 15.30.25 25 3 26.4-34.3 N.A. 50-80

31.5 ADVAC 15.30.31 31.5 3 26.4-34.3 N.A. 50-80

40 ADVAC 15.30.40 40 3 26.4-34.3 N.A. 50-80

50 ADVAC 15.30.50 50 3 26.3-38.6 N.A. 50-80

Table 4: Mechanical details:Parameter 5 kV 7.5 kV 15 kV

No load mechanical operations 5,000-10,000 10,000 5,000-10,000

Operations between servicing 1,000-2,000 2,000 1,000-2,000

Operations at full load current 500-1,000 1,000 500-1,000

Height (draw out) (mm) 27.88 (708) 27.88 (708) 27.88 (708)

Depth (draw out) (mm) 24.17 (614) 24.17 (614) 24.17 (614)

Width (frame) (mm) 27.56 (700) 27.56 (700) 27.56 (700)

29.53 (750) [50 kA] NA 29.53 (750) [50 kA]

Weight (drawout) (min/max) lbs (kg) 132.5 (60.1) 132.5 (60.1) 132.5 (60.1)

218.6 (99.2) 218.6 (99.2) 218.6 (99.2)

*Total interrupting time consists of opening time plus the time required for arc interruption. Total interrupt time is 50 ms or less for 3 cycle breakers and 83 ms or less for 5 cycle breake

Opening time is defined as the time from when the trip signal is received until primary contacts begin to part.



Table 5. Open (MO1, MO2) and Close (MC) coils

Parameter

Un 24-48-125-250 VDC

120-240 VAC

Operating limits 70-110% Un

Power on inrush (Ps) DC: 200 W

AC : 200 VA

Inrush duration approx. 100 ms

Continuous power (Pc) DC: 5 W

AC: 5 VA

Opening time * 40-60 ms

Closing time ** 40-80 ms

Insulation voltage 2000 V 50 Hz (for 1 min)

Table 6. Undervoltage (MU) coil

Parameter

Un 24-48-125-250 VDC

120-240 VAC

Operating limits CB opeining: 35-70% Un

CB closing: 85-110% Un

Power on inrush (Ps) DC: 200 W

AC: 200 VA

Inrush duration approx. 100 ms

Continuous power (Pc) DC: 5 W

AC: 5 VA

Opening time 60-80 ms

Insulation voltage 2000 V 50 Hz (for 1 min)

* Valid for MO1 and MO2

** Valid for MC

Table 7. Gear motors (MS)

Parameter

Un 24-48-125-250 VDC

120-240 VAC

Operating limits 85-110% Un

Power on inrush (Pa)

40 kA 50 kA

DC: 600 W DC: 900 W

AC: 600 VA AC: 900 VA Rated power (Pn) DC: 200 W DC: 350 W

AC: 200 VA AC: 350 VA

Charging time 6-7 s 6-7 s

Insulating voltage 2000 V 50 Hz

(for 1 min)

Table 8. Auxiliary switch ratings

Un Rated current (A) Breaking capacity (A)

220 VAC 2.5 25

24 VDC

1 ms 10 12

15 ms 10 12

50 ms 8 10

200 ms 6 7.7

60 VDC1 ms 8 10

15 ms 6 8

50 ms 5 6

200 ms 4 5.4

110 VDC

1 ms 6 8

15 ms 4 5

50 ms 2 4.6

200 ms 1 2.2

220 VDC

1 ms 1.5 2

15 ms 1 1.4

50 ms 0.75 1.2

200 ms 0.5 1



Table 9. Contact resistance

Voltage

Class

FLC (Amps) Isc (kA) Type/Rating Contact

Resistance



ADVAC. Circuit breaker specifiers guide.

General

The circuit breaker shall be an ABB ADVAC or approved equal

three-pole drawout (or stationary) type breaker, electrically ope-

rated, with manual or electric motor charging of a spring type

stored energy operating mechanism. The breaker is intended

for use as a General Purpose device in accordance with appli-

cable ANSI standards applying to 5, 8.25, or 15 kV applications:

ANSI C37.04, C37.06, and C37.09. The circuit breaker shall

also conform to the general purpose capacitor switching ratings

referenced in the ANSI standards.

Option:

Definite purpose capacitor switching ratings are optionallyoffered for single and back-to-back applications. Details of

these applications are required at the time of quotation to insure

conformance to specific applications.

Drawout circuit breaker racking system and interlocks

The circuit breaker shall be inserted and withdrawn by means of

a racking system, which can be operated with the compartment

door open or closed. The racking system shall provide smooth

consistent racking, and shall secure the breaker from both sides

of the cell in all racking positions. During racking, the breaker

shall automatically open and close cell-mounted safety shutters

to cover stationary primary contacts when the breaker is not inthe Connected position.

The racking system shall have three distinct positions. In addi-

tion to the withdrawn position (free movement): Disconnected

(both primary and secondary contacts disengaged), Test (sec-

ondary contacts engaged, primary contacts disconnected, and

shutter closed), and Connected (shutter open, primary and

secondary contacts engaged). Positive stops shall be provided

for all three positions, with deliberate operator intervention re-

quired to enable continued insertion or withdrawal of the circuit

breaker from any position.

The racking system and all moving parts of the breaker-cell

interface, including the secondary disconnects, shutter actuator

and ground contact, shall be capable of 500 complete rack-in/

rack-out operations without maintenance.

It shall not be possible to insert or withdraw a closed breaker,

and the breaker shall not be allowed to close within a cell un-

less it is in the Connected, Test, or Disconnected position.

Electrical and mechanical blocking means shall be employed

to preclude breaker contact closure in any position other then

Connected, Test, or Disconnected. The springs in the

stored energy device operating mechanism shall be automati-

cally discharged prior to removing a circuit breaker from a com-

partment (other than spring preload charges which do not have

the capacity to operate the circuit breaker).

Controls

Opening and closing speed shall be independent of the opera-

tor or of control voltage within the rated control voltage range.

Circuit breaker charge, close and trip circuits shall be electrically

separate, and control voltages for each circuit shall be indepen-

dently selectable from the full range of ANSI preferred control

voltages. Manual provisions shall be provided for closing,

tripping and charging the breaker. These provisions shall beinstalled and easily accessible at the front of the breaker.

All control components shall be front accessible for quick

inspection after easy removal of the circuit breaker front cover.

Mechanism operated cell switches shall not be allowed; the cir-

cuit breaker shall include eight on-board auxiliary contacts (four

normally open a and four normally closed b) for customer

use, wired through the secondary disconnects. All breaker-

mounted contacts shall operate in both the Connected and

Test positions.

Option:Nine additional contacts (for a total of nine normally open a

and eight normally closed b) shall be installed on the circuit

breaker and wired through the secondary disconnect, for a total

of 17 on-board contacts.

The breaker shall have flags to indicate open or closed posi-

tion, and spring charge status. Only the correct status flag for

any single function shall be visible. Pointer systems shall not be

used to indicate status. Additionally, the breaker shall have a

five-digit, non-resetting operation counter clearly visible from the

front of the breaker. The operation counter shall advance when

the breaker closes.All control devices shall be universal AC/DC, for AC or DC ap-

plication flexibility with standard parts. All control components

shall be front-accessible for inspections and easily removable

for maintenance.

Option:

Dual open coils shall be supplied for breakers as noted on data

sheets, and wired through separate secondary control sources

for complete redundancy.



Option:

A direct-acting undervoltage trip shall be supplied for breakers

as noted on data sheets. The undervoltage trip shall operate

when the control voltage drops to a predetermined value below

the nominal control voltage.

The EL actuator shall have a mechanical anti-pumping device

mounted to prevent a continuous succession of close-open op-

erations. The anti-pumping device allows the breaker to close

if the operating mechanism spring is fully charged, the opening

push button and/or shunt opening release are not activated,

and the circuit breaker is open simultaneously.

Current path

Each primary lead assembly shall consist of a vacuum inter-

rupter completely embedded in an epoxy resin casting. The

epoxy casting shall encapsulate not only the vacuum interrupter,

but also the upper and lower current carrying parts and current

transfer assembly. The epoxy casting shall limit access to any

moving parts, protecting them from dirt and debris. Epoxy en-

capsulation shall be used on all 1200 and 2000 ampere circuit

breakers. The 3000 ampere circuit breakers shall use individual

ventilated pole assemblies that shield and protect the vacuum

interrupters. Connecting directly to the pole pads, silver-plated

copper upper and lower leads shall use tulip type self-aligningprimary disconnects. A dedicated ground contact shall be

provided to engage the stationary ground contact in the circuit

breaker compartment to ground the circuit breaker in all posi-

tions from Disconnected through Connected.

Maintenance and handling

The operating mechanism shall be front accessible, and all

routine maintenance shall be performed with the breaker in

an upright position. Circuit breakers shall have self-contained

wheels designed for easy insertion, removal and transport on

flat indoor surfaces.



ADVAC. Outline drawings.

493.2 [19.42]

27 [1.06]

[11.32]287.6

[14.21]360.9

82.9

12.20

[3.26]

1.00ROLLER

310

25.4

636.2 25.05

587 23.11

10.83275

29.92760

700 27.56

275 10.83

788 31.02

OPEN "0"

CLOSING

OPENINGBUTTON

COUNTER

BUTTON

CLOSE "I"

MANUAL CLOSING

INDICATOR

SPRING CHARGELEVER

SPRINGCHARGE

INDICATOR

27.88708

31.10790

772 30.39

786 30.94

PRIMARYCONTACTSTUD

50.8 2.00

287.6[11.32]

587 23.11

651.7 25.66

760 29.92

788 31.02[1.06]

1.00

360.9 [14.21]

27

25.4

[3.26]82.9

ROLLER

493.2 [19.42]

310 12.20

INDICATOR

SPRING CHARGE LEVER

BUTTONOPENING

BUTTONCLOSING

MECHANICAL CLOSING

CLOSE "I"OPEN "O"INDICATOR

SPRING CHARGECOUNTER

790 31.10

[27.88]708

30.94]786

772 30.39PRIMARYCONTACTSTUD

50.8 2.00 10.83275 275 10.83

FRAME WIDTH

U (kV) Ir (A) Isc (kA)

4.76 1200 25-31.5

15 1200 20-25-31.5


4.76 2000 25-31.5-40

8.25 2000 40

15 2000 20-25-31.5-40

15 2000 50



760 29.92

69.8 2.75PRIMARY CONTACT

STUD10.83275

FRAME WIDTH

275 10.83

788 31.02

12.20

82.9

[27.00]

11.32

[3.26]

ROLLER

287.6

360.9 [14.21]

1.0025.427 [1.06]

686

310

587 23.11

CLOSE "I"

BUTTONOPENING

BUTTON

LEVER

INDICATOR

CLOSING

COUNTER

SPRING CHARGEMANUAL CLOSING

CHARGESPRING

OPEN "O"

INDICATOR

772 30.39

708 27.88

786 30.94

790 31.10

[11.32]287.6

638.4 25.13

760 29.92

PRIMARYCONTACTSTUD50.8 2.00

360.9 [14.21]

23.11

25.4

493.2 [19.42]

1.00

82.9[3.26]

27 [1.06]ROLLER

587

310 12.20

OPENING

BUTTON

COUNTER

SPRINGCHARGEINDICATOR

OPEN "0"CLOSE "I"

CLOSING

BUTTON

LEVER

MANUAL CLOSINGSPRING CHARGE

INDICATOR

30.94786

27.88708

790 31.10

772 30.39

27.56700

31.02788

275 10.83275 10.83


4.76 3000 25-31.5-40

4.76 3000 50

8.25 3000 40

15 3000 20-25-31.5-40

15 3000 50


4.76 1200 40

8.25 1200 40

15 1200 40



644.16 25.36

50.8 2.00PRIMARYCONTACTSTUD

[11.32]287.6

[3.26]82.9

760 29.92

493.2 [19.42]

23.11587

310

ROLLER

360.9 [14.21]

12.20

25.4 1.00

27 [1.06]

10.83275 10.83275

750 29.53

788 31.02

CLOSING

BUTTONOPENING

OPEN "0"INDICATOR

SPRING

CLOSE "I"

BUTTON

CHARGEINDICATOR

MANUAL CLOSINGSPRING CHARGELEVER

COUNTER

30.39772

31.10790

786[30.94]

708.1 27.88

50.8 2.00PRIMARY

CONTACTSTUD

788 31.02

760 29.92

[11.32]287.6

CLOSINGBUTTON

INDICATOR

INDICATOR

COUNTER

LEVERSPRING CHARGEMANUAL CLOSING

CLOSE "I"OPEN "O"

BUTTONOPENING

SPRINGCHARGE

30.39772

27.88

786[30.94]

708

790 31.10

10.83275

750 29.53

275 10.83

493.2 [19.42]

[14.21]360.9

ROLLER

23.11

25.4 1.00

587

310 12.20

27 [1.06]


4.76 1200 50


15 1200-2000 50



760 29.92

[3.26]82.9

685 26.97

287.3 11.31

OPEN "I"

CHARGE

COUNTER

MANUAL CLOSINGSPRING CHARGELEVER

OPENINGBUTTON

CLOSINGBUTTON

SPRING

INDICATOR

INDICATORCLOSE "0"

27.88708

30.39772

786 30.94

790 31.10

10.83275

29.53750

275 10.83

788 31.02

PRIMARYCONTACT

STUD69.9 2.75

23.11587

493.2 [19.42]

310 12.20

360.9 14.21

27 [1.06]


15 3000 50


20/20

Contact us

ABB Inc.

Medium Voltage OEM Apparatus

655 Century Point

Lake Mary, FL 32746

Phone: +1 407 732 2000

Customer service: +1 800 929 7947 ext. 5

+1 407 732 2000 ext. 2510

E-Mail: [email protected]

ABB Inc.

Low and Medium Voltage Service

Florence, South Carolina

Phone: +1 800 HELP 365 (option 7)+1 407 732 2000

www.abb.com/mediumvoltage

www.abb.us/mvservice

Note:

We reserve the right to make technical changes

or modify the contents of this document without

prior notice. With regard to purchase orders, the

agreed particulars shall prevail. ABB does not

accept any responsibility whatsoever for potential

errors or possible lack of information in this docu-

ment. We reserve all rights in this document and

in the subject matter and illustrations contained

therein. Any reproduction in whole or in parts

is forbidden without ABBs prior written consent.

Copyright 2011 ABB.

All rights reserved.

Documents

ADVAC Technical Guide 1VAL050501-TG Rev A