Indoor 3 Phase Drawout Vcb Vacuum Circuit Breaker in China
Product Description
VSG indoor vacuum circuit breaker is used for indoor 12kv switchgear,it is suitable to control and protect transmission and distribution system such as electric network equipment and industrial&minning industry etc as their protection and control unit.
It can match with KYN28(GBM) type of switchgears.The products meet standards of IEC,this seriesof products include:VCB truck,isolation truck and fuse truck etc.
Application
Used for control and protection of substations and equipment; The connection and disconnection of short-circuit currents in the power grid under various operating conditions.
conforms with :
-IEC56 and similar standards in other main industrialized countries
-IEC62271-100 high voltage switchgear and control gear part 1: AC breaker
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.
Datas
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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