DIVAC Vacuum Circuit Breaker

DIVAC® is a three-pole circuit breaker that uses vacuum interrupting technology. The Divac vacuum circuit breakers are suitable as Withdrawable units for air-insulated Metalclad switchgear, as well as “open air” or “doghouse” confi gurations.

Due to their vacuum switching capability and simple, robust construction, Divac circuit breakers are highly reliable and have a long life expectancy.

The Divac series uses a stored energy spring operating mechanism. The basic version is fi tted with a manual spring charging device or with an optional charging motor, making the breaker suitable for auto-reclosing and multi-shot auto-reclosing fast cycles.

Trip-free feature

The Divac operating mechanism will always initiate an opening command prior to a closing one (trip-free feature). If an open command is initiated during the closing process, latch #2 will be opened (using the contact pressure stored, energy free), which will, in turn, open the breaker.

General Characteristics

Safe and reliable

Compact design

Excellent dielectric and arc extinguishing properties

Complete and self-extinguishing properties

Easy installation

User-friendly operation

Extended electrical and mechanical life

Maintenance-free

Optional equipment is available

Construction Philosophy

Sheet steel base frame that supports the poles and houses the operating mechanism

Circuit breaker made up of three cylindrical poles

All circuit breaker live parts are housed inside an epoxy resin en-velope, which eliminates ground arc fault possibility

Applications

The Divac circuit breaker product line can be used for:

Open space substations

Assembly in compartment cubicles

Assembly in Metalclad cubicles

Retrofi tting breakers

Product Sheet

Technical Specifi cations

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Available Ratings

15kV

25kA 1200A / 2000A / 3000A

40kA 1200A / 2000A / 3000A

Technical Data

Making current (kA peak) 2.5 times breaking current for all the range

Short withstand current Equal to the breaking current held for 1 or 3 seconds

Operating cycles O - 3min - CO - 3min - CO/O - 0.3s - CO - 15s - CO - (15s - CO)

Spring charging time <15s

Applicable standards IEEE C .37, .04, .06, .09

Composition

1 - Upper connector 4 - Spring charging level

2 - Vacuum interrupter pole 5 - Operating mechanism

3 - Lower connector

1

2

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Efacec USA, INC2755 Northwoods Parkway l Norcross, GA 30071 l e-mail: usa.mail@efacec.com l web: www.efacecusa.com