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BP35 series is a vacuum circuit breaker for indoor installation. It consists of poles molded of epoxy compound, universal electromagnetic drive and controlled by the electronic control unit positioned in the circuit breaker casing.
Vacuum circuit breaker of series VR35NТ (with a hybrid drive) and VR35NSm (with a spring drive) are applied in outdoor switchgear 35 kV, complete transformer substations KTPBR-110/35/10 (6), KTPBR-М-35/10 (6), and as to replacement of the air and oil circuit breaker by operating substations. BP35NT is intended to operate at temperatures up +50°C to -60°C.
VBNK-35 «TURA» – three-poles outdoor vacuum circuit breaker with silicon-organic insulation and build-in electromagnetic drive. It has heating devices and could be supplied with build-in transformers.
Vacuum circuit breakers of series VR27NS and VBCO-27,5 (with a electromagnetic drive) are applied in blocks of traction substation.
|
BP35 |
BP35NT |
BP35NS |
VBU-35 |
VBC-35 |
VBC27NS |
VBCO-27,5 |
| Rated voltage, kV |
35 |
35 |
35 |
35 |
35 |
27,5 |
27,5 |
| Rated current, A |
630 – 2 000 |
1 600 |
1 600 |
1 600 |
1 600 |
1 600 |
1 600 |
| Rated breaking current, kA |
20 |
25 |
20 |
25 |
20 |
25 |
25 |
| Mechanical resource, cycles |
30 000 |
25 000 |
30 000 |
60 000 |
50 000 |
30 000 |
20 000 |
| Switching resource, cycles |
|
|
|
|
|
|
|
| - at rated currents |
30 000 |
20 000 |
30 000 |
20 000 |
20 000 |
30 000 |
30 000 |
| - at short-circuit current breaking |
55 |
30 |
55 |
70 |
70 |
30 |
30 |
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