High Voltage Indoor Fixed or Withdrawable Vacuum Circuit Breaker (VCB)
Product Description
VSG indoor vacuum circuit breakers are suitable for three-phase AC power systems with a rated voltage of 12-24kV and a frequency of 50/60Hz. They are widely used in power plants, substations, petrochemicals, metallurgy, manufacturing, airports, residential areas, and other fields to control and protect electrical equipment. They are particularly suitable for situations that require infrequent operation or multiple interruptions of short-circuit currents under rated current. They can be installed in indoor air insulated switchgear such as KYN28 or AMS, ABB ZS1 series, etc.
Features
1. Embedded pole can greatly improve the reliability of insulation, mechanical and breaking performance and really realize the free-maintenance and longer mechanical and electrical life.The embedded poles saves more accessories like fasteners and conduct joints comparing with traditional assembled poles.
2. Mechanism could be manual or motorized.
3.The product is suitable for many kinds of withdrawable metal-clad switchgears and can be fixed installation.
Environment condition
Environmental temperature: -40 °C~+40 °C (below 35°C within 24 hours)
Relative humidity: ≤ 95% (daily average) or ≤ 90% (monthly average)
Altitude: ≤ 1000m
Technical Satisfaction
| NO. |
Name |
Unit |
VSG |
|
| 1 |
Rated Voltage Un |
kV |
12 |
| 2 |
Rated Frequency |
Hz |
50 |
| 3 |
Rated Current |
A |
630 |
| 4 |
Rated Short-circuit Breaking Current |
kA |
31.5 |
| 5 |
Rated Short-circuit Making Current (Peak Value) |
kA |
80 |
| 6 |
Rated Short Time withstand Current(rms) |
kA |
31.5 |
| 7 |
Rated shor-circuit endurance |
s |
4 |
| 8 |
Rated peak withstand current |
kA |
80 |
| 9 |
Rated Cable Charging Breaking Current |
A |
25 |
| 10 |
Electrical Endurance Class |
Class |
E2 |
| 11 |
Capacitive Current Breaking and Making Capacity |
Cass |
C2 |
| 12 |
Mechanical Endurance |
Times |
10000 |
| 13 |
SF6 gas anual leakage rate |
|
|
|
| 14 |
Rated insulation level |
Unit |
|
| 1min power frequency withstand voltage (rms) |
On isolating distance |
kV |
48 |
| Phase to phase |
kV |
42 |
| Phase to earth |
kV |
42 |
| Lightning Impulse Withstand Voltage(peak) |
On isolating distance |
kV |
85 |
| Phase to phase |
kV |
75 |
| Phase to earth |
kV |
75 |
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FAQ
1. How long is the warranty period?
Normally 12 months warranty period.
1. What payment term do you accept?
T/T,west union and others upon request.
4.How to place order?
Please send us your detailed requirements.
3.How about type test?
Our client passed type test in Europe, and we also type tested in China.
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