1. December, 2010
Vmax – Indoor vacuum circuit-breakers for Primary Distribution Product presentation
1VCP – Rev. D, en – Presentation –
© ABB Group
April 16, 2017 | Slide 1

2. Available versions acc. to IEC STDs
Vmax
Available versions acc. to IEC STDs
Compliance to IEC
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
April 16, 2017 | Slide 2 2

3. Available versions acc. to ANSI STDs
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)
© ABB Group
April 16, 2017 | Slide 3 3

4. 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

5. 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

6. Vmax Overview

7. 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

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

9. Vmax Features 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

10. 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)

11. 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

12. 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)

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

14. © ABB Group
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