Design
All metal units and parts of cubicles are made of steel sheets with thickness of 2, 3 and 4 mm, and have corrosion-resistant coating of powder type MX.S.RAL or electroplated coating. All parts are fixed with M8 type bolts and nuts.
Switching Apparatus
Switchgears series KU35 are equipped with BP35 vacuum circuit-breakers with cast epoxy poles. Circuit-breakers are designed for rated currents of up to 3150 A and rated breaking currents of up to 31.5 kA. They have the commutation life of 30000 ON/OFF cycles at rated currents and 50 cycles at breaking currents.
Specifications:
Parameter Description
|
Ratings
|
| Rated voltage, kV |
35 |
| Maximum operating voltage, kV |
40,5 |
| Rated main circuit current, A |
630; 1 000; 1 600; 2 500; 3 150 |
| Rated busbar current, A |
1 000; 1 600; 3 150 |
| Rated breaking capacity, kA |
20; 25; 31,5 |
| Rated peak withstand current, kA |
51; 81 |
| Overall dimensions, mm |
|
| |
width |
1 500 |
| |
depth |
2 800; 3 150* |
| |
height |
2 532 |
| Weight, kg |
no more than 2000 |
10 kV Vacuum Circuit-Breakers
