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24KV Vacuum Circuit Breaker

Each vacuum interrupter is embedded in a solid-insulated pole made of weather-proof cyclo aliphatic epoxy resin. This enables a small design as well as resistance against environmental effects. The breaker switch unit is comprised of three poles, the operating mechanism, and the operating mechanism housing. The sequence of the poles is A -B – C or 1 – 2 - 3 (sequence left to right when viewed from the lower terminal side of the recloser switch unit.

Breaker principle and design of 24KV Vacuum Circuit Breaker

ZW32 series Breakers are used in distribution systems. Circuit breakers are used to make and break normal and fault currents. Breakers are fully equipped with sensors and a controller to provide a means of protection and control. In case of a line fault, breakers can break and make currents several times, thus avoiding longer network interruptions due to temporary faults. The manufacture, design, and testing of the vacuum recloser is based on current standards IEC 62271-111:2019

Technical parameters of 24KV Vacuum Circuit Breaker

Products Type

ZW32-24

Maximum System Voltage

24kV

Rated Continuous Current

630A

Rated Frequency

50/60Hz

Short Time Withstand Current

20kA/1sec

Mainly Active Load Current

630A

Number of Load-break Operations

30

Short-circuit Making Current (peak)

50kA

Number of Making Operations

5 times

Cable Charging Current

25A

Line Charging Current

Closed Loop Circuit Current

630A

Transformer Magnetizing Current

22A

Wet Condition-10sec Ph- Ph-Eth, Across Interrupters

50kV

DryCondition-1min,Ph- Ph, Phase to Earth

65kV

Dry Condition - 1 min AcrossInterrupter

79kV

Phase to Phase, Phase to Earth

125kV

Across Interrupter

145kV

Internal Arc Test

20kA /0.1 sec

Arc Extinction Medium

vacuum

Insulation Medium

vacuum

Creepage Distance (Silicon)

960mm

Dry arcing distance

200mm≥

IP Level

67

Closing/Opening Time

<1sec

Mechanical Operations (Guaranteed)

10000times

Operating Temperature (*Manual Type)

-25~+70℃

Zhuhai GopowerSmart Grid Co., Ltd. is one of the earliest electric power equipment company. We provide 11kv load break switch, load break switch 11kvand etc. Want to know more? Please contact us.



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