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  • VBI-24 series of indoor high voltage vacuum circuit breaker
  • VBI-24 series of indoor high voltage vacuum circuit breaker

VBI-24 series of indoor high voltage vacuum circuit breaker

Description:

VBI-24 series of indoor high voltage vacuum circuit breaker with embedded poles is three phrase A.C.50 Hz indoor power distribution equipment with the rated voltage of 24 KV.It’s used for protecting and controlling the electrical equipment in the fields of industry and mining enterprise, power plants and substation.

  • Product Description

VBI-24kV vacuum circuit breaker

Summary

VBI-24 series of indoor high voltage vacuum circuit breaker with embedded poles is three phrase A.C.50 Hz indoor power distribution equipment with the rated voltage of 24 KV.It’s used for protecting and controlling the electrical equipment in the fields of industry and mining enterprise, power plants and substation.

The main conductive circuit of this type vacuum circuit breaker with spring mechanism is embedded pole,that can greatly improve the reliability of insulation, mechanical and breaking performance and really realize the free-maintenance and longer mechanical and electrical life.This type vacuum circuit breaker conforms to national standards and the stipulations of IEC standard. The capability reaches grade of M-E2-C2.

The product is used for many kinds of switchgear like KYN28-24(GZS1) and can be fixed installation.

Main Technical Specification

Sequence number name unit data
1 Rated voltage KV 24
2 Rated current A 630 1250 1600 2000 2500 3150
3 Rated frequency Hz 50
4 Rated short circuit breaking current KA 20 25 31.5
5 Rated short circuit making current KA 50 63 80
6 Rated short time withstand current KA 20 25 31.5
7 Rated peak withstand current KA 50 63 80
8 Rated power frequency withstand voltage 1min KV 65
9 Rated lightning impulse withstand voltage KV 125
10 Rated short-circuit duration s 4
11 Rated operating sequence   O-0.3S-CO-180s-CO
12 maximum DC component   50%
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