VSG Vacuum Circuit Breaker
description
VSG/R Vacuum Circuit Breaker with Lateral Operating Mechanism is fixed installation. It is mainly used for fixed switchgear. The circuit breaker can be used alone. It is more suitable for ring network power supply, box transformer or various non-standard power supply systems.
parameters
Technical Information
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Technical Specification |
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Rated voltage |
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kV |
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12 |
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24 |
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Rated current |
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A |
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630,1250,1600,2500,3150 |
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Rated Frequency |
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Hz |
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50 |
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50 |
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| Rated insulation level | 1min power frequency withstand voltage |
kV |
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42/48 |
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65 |
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Lightning impulse withstand voltage |
kV |
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75/85 |
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125 |
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Rated short circuit breaking current |
kA |
20/25 |
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31.5 |
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31.5 |
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4S rated short circuit withstand current |
kA |
20/25 |
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31.5 |
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31.5 |
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Rated peak tolerable current |
kA |
50/63 |
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80 |
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80 |
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Rated short circuit switching current (peak value) |
kA |
50/63 |
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80 |
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80 |
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Operation sequence of automatic reclosure |
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分-0.3s-合分-180s-合分 Score-0.3s-Score-180s-Score |
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Arcing time |
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ms |
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≤15 |
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Rated short circuit breaking current |
Times |
100 |
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50 |
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100 |
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Mechanical life |
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Times |
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20000 |
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20000 |
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Contact opening (according to vacuum tube) |
mm |
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11±1(9±1) |
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13±1 |
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Contact overrun |
mm |
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3.5±0.5 |
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3±1 |
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Contact closing bounce time |
ms |
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≤3 |
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≤2 |
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Different Periods of Three-phase Closing |
ms |
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≤2 |
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≤2 |
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Opening speed |
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m/s |
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0.9~1.5 |
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0.9~1.7 |
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Closing speed |
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m/s |
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0.5~0.9 |
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0.6~1.0 |
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Opening time |
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ms |
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≤50 |
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20~50 |
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Closing time |
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ms |
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≤100 |
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35~70 |
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Rated current: 630 A |
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μΩ |
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≤50 |
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≤45 |
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Main circuit resistance |
Rated current: 1250 A |
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≤40 |
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≤35 |
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Interphase centre distance |
mm |
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210±2 |
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210,270,275 |
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Company profile
Zhejiang Xikai Electric Co., Ltd engineers and manufactures medium- high-voltage electric
equipment, components and systems that deliver reliable electric power to homes, industries,
businesses, and institutions worldwide. We are a leader in providing load break switch, vacuum
circuit breaker, isolating switch that enable customers to increase productivity, improve system
reliability and reduce costs.
Our products, services, and solutions are used worldwide for public, commercial, and industrial
power systems. Our products had passed the test at Ministry of Power Industry of PRC and
Electric Power Research Institute of PRC.
As a global manufacture, Zhejiang Xikai Electric Co., Ltd provides a wide range of
forward-looking solutions including Power Systems Protection, Distribution System Reliability
and Power Quality products and services. Through our commitment to research and development,
we continue to develop smart solutions for safe, reliable, environmentally friendly power
protection.
Our products include indoor high voltage load break switch, vacuum load break switch, circuit
breaker; outdoor high voltage load break switch, circuit breaker; high voltage earthing switch;
high voltage isolating switch and fuse.
We offer our customers integrated protective solutions using innovative products combined with
unrivalled service and reliability world wide
