Remote racking of circuit breaker / contactor for operator safety

A safer operating environment for electrical substation personnel through the proven method of adding distance between the operator and arc flash incident energy at the switchgear site.

The process of racking a circuit breaker into and out of the connected position is one of the most frequent exercises that expose an operator to risk. Increased focus on operator safety has caused owners to question the adequacy of prior switchgear designs that require the cell door to be open in order to connect or disconnect the primary circuit and the secondary control circuit. A malfunction during this operation has the potential for catastrophic  consequences to equipment and personnel. Supervised, closed door circuit breaker racking is a fundamental recognized safety practice. Furthermore, older breakers are more complex and vulnerable to mechanical failures that create safety problems.

ABB vacuum circuit breakers can be provided with a fully integrated motor operated racking system for their use in new replacement switchgear / retrofit breaker or as part of the hard-bus and cradle-in-cradle retrofill solutions

ANSI circuit breakers
Type Portable external driver Portable external driver
One per ... Switchgear Switchgear
Cassette Cassette Cassette
Equipment life cycle Active Legacy
Breaker type AMVAC, ADVAC 15HK, 5HK
Switchgear type SafeGear, Advance ITE / ABB HK

IEC circuit breakers

Type Truck mounted driver OneFit Safety Plus TruckMaster
One per ... Breaker Breaker Switchgear
Cassette Cassette Floor rolling
Vertical racking
Equipment life cycle Active Retrofit (OneFit) Retrofit
Breaker type VD4, VM1 VD4, VM1 VD4, VM1, HD4
Contactor type VSC VSC VSC
Switchgear type UniGear Any Any

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