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Porcelain Clad Vacuum Circuit Breakers
With our profound knowledge in this electrical industry, we are renowned in this market for manufacturing and supplying excellent gamut of Porcelain Clad Vacuum Circuit Breakers. These vacuum circuit breakers are offered in variety of capacities ranging from 3.3 KV to 33KV. Widely used in rapid auto-reclosing applications, transmission and distribution networks, switching duties for capacitors & transformers and industrial distribution networks, these circuit breakers have excellent insulation and are safe to use. Our offered Porcelain Clad Vacuum Circuit Breakers have durable electrical and mechanical life.
Salient Features
- Maintenance free and high reliability
- Long electrical and mechanical life
- Compact and rugged design for outdoor applications
- Adequate ground clearance and ease in installation
- Suitable for rapid Auto-Reclosing duty
- Series/Shunt Tripping options
- Type tested at CPRI/ERDA as per IEC 62271-100/IS 13118
- Tested for capacitor bank switching
- Conforms to the Indian Electricity Regulations
- Compatible for remote & SCADA operations
Accessories
Stelmec Outdoor Porcelain Clad Vacuum Circuit Breaker along with the outdoor CTs & PTs. Isolators and Control & Relay panel, as a whole unit is an ideal solution for electical networks in the field of Transmission and Distribution.
Optional
- Outdoor Current Transformer
- Outdoor Potential Transformer
- Isolators & Lightning arrestors
- Control & Relay Panel
Technical Specifications
|
Details |
Unit |
parameters |
|
|
Rating |
kV |
11 KV |
33 KV |
|
Circuit Breaker Type |
- |
SPCV12-VC32 |
SPC33 –VC53 |
|
Rated Voltage |
kV |
12 |
36 |
|
Rated Normal current |
Amps |
630/800/1250/1600 |
1250/1600/2000 |
|
Rated insulation level |
kV/kVrms/kVP |
12/28/75 |
36/70/170 |
|
Rated Frequency |
Hz |
50 |
50 |
|
Rated short circuit breaking current |
kA |
13.1/20/26.3 |
20/26 .3 |
|
Duration of rated short circuit current |
Seconds |
3 |
3 |
|
Rated short circuit making current |
kA |
32.75/50/62.50 |
50/65.75 |
|
Rated operating sequence |
- |
O-0.3sec-co-3min-co |
O-0.3sec-co-3min-co |
|
Opening time ( +/- 5 m.sec ) |
m.sec |
35 |
40 |
|
Closing time ( +/- 10m.sec) |
m.sec |
50 |
65 |
|
Dimensions |
mm |
As per G.A Drawing |
As per G.A Drawing |
|
Trip/ close coil |
V DC/AC |
24/30/48/110/220 |
24/30/48/110/220 |
|
Operating mechanism |
- |
Spring charge motor wound |
Spring charge motor wound |
