Understanding VCB.pptx

1VCP000181 – Rev. D, en – Presentation – 2010.12
© ABB Group
August 22, 2023 | Slide 1
Vmax – Indoor vacuum circuit-breakers
for Primary Distribution
Product presentation
December, 2010

© ABB Group
Vmax
Available versions acc. to IEC STDs
 Compliance to IEC 62271-100
 12 kV … 17.5 kV ; 630 … 1250 A ; 16 … 31.5 kA
 Fixed for freestanding installation
 Withdrawable for ABB UniGear ZS1 switchgear (width 550 mm)
 Withdrawable for ABB PowerCube module (width 600 mm)
 Fixed for ABB UniGear 500R switchgear (width 500 mm)

© ABB Group
Vmax
Available versions acc. to ANSI STDs
 Compliance to C37.54 – C37.09 – C37.04 – C37.55
 UL listed type L (sticker on request)
 15 kV ; 1200 A ; 25 … 31.5 kA (3 cycles)
 Fixed for freestanding installation
 Withdrawable for ABB PowerCube module (width 600 mm)

Vmax
ANSI version versus IEC version:
 Shunt tripping releases suitable for “3 cycles” interruption
 Wiring with UL certified cables (& AWG cross-section)
 Nameplate with ANSI parameters
 Mechanical indicators according to ANSI STDs (symbol &
colour)
 Specific Manual Booklet

Vmax
Overview
Open/close aux. contacts
(standard set of ten aux.c.)
Additional opening release
Locking magnet in the actuator
Opening pushbutton
Closing pushbutton
Shunt tripping release
Built-in lever for closing spring
manual charging
Undervoltage release (missing in
the picture)
Shunt closing release
Signalling device for closing
springs charged/discharged
Mechanical operation counter
Geared motor for closing spring
charging

Vmax
Fields of application
 Power distribution
 Cable control and protection
 Overhead control and protection
 Transformation and distribution substations
 Motor and transformer control and protection
 Generator control and protection
 Capacitor bank control and protection

Vmax
Strenghts
 Application where space saving is a premium
 Compact dimensions compared to existing VD4
 Freestanding vacuum interrupters
 Moulded case design

 Vacuum interruption technique
 Contacts in vacuum protected against oxidation
and contamination
 Sealed for life vacuum interrupters
 Vacuum interrupters and EL mechanical actuator
already used and tested in new VD4 series
 Limited switching energy
 10,000 mechanical operations
 Stored energy operating mechanism with built-in
anti-pumping device and closing spring charging
lever
 Insulating monobloc
 Operating mechanism and monobloc fixed to a
sturdy metal frame
 Easy customization with a complete range of
accessories
 Locks to prevent incorrect and hazardous
operations
Vmax
Features

Vmax
Standard equipment
 Mechanical signalling device for CB open/closed
 Mechanical signalling device for closing spring
charged/discharged
 Opening and closing pushbuttons
 Mechanical operation counter
 Built-in lever for manually charging of closing spring
 Anti-pumping mechanical built-in function
 5 + 5 auxiliary contacts
 Connection terminals and terminal board for auxiliary circuits (for
fixed CB)
 Isolating contacts, cord with connector (plug only), racking-in/out
lever (for withdrawable CB)

Vmax
Other accessories, on request
 Shunt tripping release
 Additional shunt tripping release
 Shunt closing release
 Opening solenoid (for self-supplied overcurrent relay ABB PR family)
 Undervoltage release
 Electronic time delay (which must be mounted externally in relation to the
circuit breaker) for undervoltage release
 Mechanical override for undervoltage release
 Opening and closing pushbuttons protection
 Opening and closing pushbuttons padlock
 Key-lock in open position
 5 extra auxiliary contacts

Vmax
Other accessories, on request
 Motorgear for closing spring charging
 Signalling contact closing spring charged or signalling contact
closing spring discharged
 Locking magnet in the truck to prevent racking-in with auxiliary
circuits disconnected (for withdrawable CB only)
 Transmitted contacts in the truck for signalling inserted or
isolated circuit breaker (for withdrawable CB only)
 Interlock for fixed circuit breaker which is converted in
withdrawable ones by the customer (to prevent racking-out/in
with the circuit breaker closed and to prevent closing operation
during the translation)

Vmax
Compared to VD4, Vmax cannot be fitted with:
 Transient contact with momentary closing during circuit
breaker opening
 Motorized truck

Understanding VCB.pptx

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