Sales service hotline: 0532-58517159

Sales service hotline: 0532-58517159

ZW20-12 Outdoor Vacuum Circuit Breaker

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Product name: ZW20-12 Outdoor Vacuum Circuit Breaker

product description

ZW20-12 outdoor pole vacuum circuit breaker is a three-phase AC 50Hz, 10kV outdoor high-voltage switchgear. It is mainly used in medium-voltage overhead line power grids. For overload current and short-circuit current. This product adopts vacuum arc extinguishing and SF6 gas insulation. The inlet and outlet insulation sleeves are integrally cast by epoxy resin and silicone rubber. In order to reduce the switch volume, corner sleeves are used for A and C phases to ensure good external insulation.

Performance characteristics

Can be equipped with spring operating mechanism or permanent magnet operating mechanism

High reliability and maintenance-free for smart grid equipment

Comply with national standard GB1984 and International Electrotechnical Commission standard IEC62271-100

Can cooperate with intelligent controller to form intelligent circuit breakers, breakers, reclosers and other intelligent switches

Main electrical parameters of pole-mounted circuit breaker


project

unit

parameter

Switch model

ZW20-12

Rated voltage

kV

12

1min power frequency withstand voltage

kV

42 (phase to phase, ground) 48 (isolated fracture)

Lightning impulse voltage (full wave)

kV

75 (phase to phase, ground) 85 (isolated fracture)

Rated current

A

630

4s short-time withstand current (effective value)

kA

20, 25

Rated peak withstand current

kA

50, 63

SF6 gas leakage rate

%/year

0.1

Type of mechanism

Spring mechanism, permanent magnet mechanism

Dimensions (W * H * D)

mm

1189 * 775 * 819