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126kV Intelligent Combination Electrical Appliance

ZW32-12 Outdoor Post Mounted Vacuum Circuit Breaker

Overview

? The ZW32-12/T outdoor column mounted vacuum circuit breaker is an outdoor distribution equipment with a rated voltage of 12kV and three-phase AC 50Hz. The circuit breaker adopts a spring operated mechanism, mainly used for breaking and closing load current, overload current, and short circuit current in the power system.

Performance Characteristics

The product is mainly used for the protection and control of power distribution systems in substations and industrial and mining enterprises. Can be used in rural power grids and frequently operated places. It can cooperate with the controller to achieve measurement

protection

control

and communication functions. Meet the requirements of distribution automation systems. Equipped with a knife switch with obvious disconnection points for easy and safe maintenance.

Main electrical parameters of column mounted circuit breaker

 

Project

Unit

Parameter

Switch model

 

ZW32-12

Rated voltage

kV

24

1min power frequency withstand voltage

kV

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

Lightning impulse voltage (full wave)

kV

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

Rated current

A

630

Short time withstand current for 4 seconds (effective value)

kA

20、25

Rated peak withstand current

kA

50、63

SF6 gas leakage rate

%/year

/

Institutional type

 

Spring mechanism, permanent magnet mechanism

Overall dimensions (width * height * depth)

mm

1120*703*750