First, outline

ZW43-12 outdoors exchange vacuum circuit-breaker rated voltage 12kV, three phase ac 50Hz outdoors high-voltage switch equipment. Mainly uses in to break, the pass gathers the electrical power system the load current, the excess current and the short-circuit current. Is suitable to the transformer substation, the industry and mining enterprise and the city, the agricultural network makes the protection and the control, specially uses in to operate the frequent place and the city net automation power distribution network. The circuit breaker tallies: The GB/T1984 high pressure exchange circuit breaker, the GB/T11022 high-voltage switch equipment and the control device standard altogether uses the specification DL402 a.c. high voltage circuit breaker ordering engineering factor 。

Second, product characteristic

Miniaturized vacuum explosion chamber

•  biggest reliability

•  Shield outside reveals, the volume is small

•  The working life is long

•  Seal in ball oxygen resin

The epoxy resin seal conforms to the environmental

•  protection requirement: Does not have the oil and the SF6 gas

•  Has confirmed outdoors performance;

•  Bears the ozone and the ultraviolet ray;

•  Easy to transport: Firm light not easy embrittlement

Permanent magnetism organization

•  reliable: The movement part are few

•  Does not need the substantive maintenance maintenance;

•  The application bistability leaves the magnetism technology

Manual minute brake gear

1. Enhances the switch the reliability: When the control system appears the breakdown,

2. may use the manual minute The brake gear does the urgent minute to break the operation,

•  reliably opens breaks the fixed load current

Position sensor

•  Approaches the switch to install in, does not want the mechanical part,

•  does not want the mechanical part

•  the swi tch the analysis and synthesis position good inoxidizability

•  struggle casting aluminum alloy which takes shape

Third, main technical parameter

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