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ZW32-12 Outdoor Vacuum Circuit Breaker

ZW32-12 outdoor vacuum circuit breaker (hereinafter referred to as circuit breaker) is an outdoor distribution equipment with rated voltage of 12kV and three-phase AC of 50Hz. It is mainly used to break and close the load current, overload current and short circuit current in the power system.

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Product Overview

Overview

ZW32-12 outdoor vacuum circuit breaker (hereinafter referred to as circuit breaker) is an outdoor distribution equipment with rated voltage of 12kV and three-phase AC of 50Hz. It is mainly used to break and close the load current, overload current and short circuit current in the power system. It is suitable for protection and control in power distribution systems of substations and industrial and mining enterprises, and places where rural power grids are frequently operated.

The circuit breaker has the characteristics of small volume, light weight, anti-condensation, maintenance-free, etc., and can adapt to harsh climatic conditions and dirty environment.

 

Model Meaning

ZW 32 12 / T 630 20 G
Outdoor
Vacuum
Circuit
Breaker
Design
sequence
number
Rated
voltage(kV)
Ammunition handling mechanism Rated
current(A)
Rated
short circuit
breaking
current(kA)
Tape
isolation
S hand
exercise
D electric
exercise

 

Meet The Standard

• GB1984 AC High Voltage Circuit Breaker;

• GB11022 “Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards”;

• GB31.1-6 “High voltage transmission and transformation equipment insulation cooperation”;

• GB763 “Heating of AC high voltage electrical appliances during long-term work”;

• GB2706 “AC high voltage electrical equipment dynamic, thermal stability test method”;

• GB3309 “Mechanical Test of High voltage Switchgear at normal temperature”;

• DL/T593 “High voltage switchgear joint order technical conditions”.

 

Main Technical Parameters

Item Units Argument
Rated voltage kV 12
Rated frequency Hz 50
Rated current A 630
Rated short-circuit breaking current kA 20
Rated peak withstand current(peak) kA 50
Rated short-time withstand current kA 20
Rated short circuit closing current(peak) kA 50
Mechanical life time 10000
Rated short circuit breaking current breaking times time 30
Power frequency withstand voltage(1min):(wet)(dry)phase to phase,ground/fracture kV 42/48
Lightning impulse withstand voltage(peak)phase to phase,ground/fracture kV 75/85
Secondary circuit 1min power frequency voltage kV 2

 

Dimensions And Mounting Dimensions (mm)

 

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