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Disconnector/Circuit Breaker
Imported from China
Manufacturer: Pinggao Group Co., Ltd.
Contractor/Distributor:
Supplied To: Sunkoshi Hydropower Station
Technical Specifications for 11KV Vacuum Circuit Breaker
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S.N. |
Name |
Spec. |
1 |
Type |
VSI 1/25 or equivalent |
2 |
Applicable Standard |
IS 13118/IEC 56/BS 5311 |
3 |
Rated Voltage |
11 KV |
4 |
Maximum System Voltage |
12 KV |
5 |
Lightning Impulse withstand voltage |
75 KV |
6 |
One Minute Power Frequency withstand voltage |
28 KV |
7 |
Rated Frequency |
50 Hz |
8 |
Rated Continuous Current |
800A |
9 |
Short Circuit Breaking Current |
25 kA for 1 sec |
10 |
Rated Making Current |
62-65 kA |
11 |
Total Interrupting Time |
Less than 80 ms |
12 |
Total Making Time |
Less than 100 ms |
13 |
Operating Voltage for closing and tripping coils |
110 V DC |
14 |
Operating Mechanism |
AC/DC Motor operated |
15 |
Additional Spring Charging |
Manual |
16 |
Supply voltage of auxiliary circuit |
1-Φ, 240 V AC |
17 |
Operating Sequence |
0-0.3sec-CO-3min-CO |
News Posting(s) for Disconnector/Circuit Breaker
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२०७५ कार्तिक
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2018 Oct-Nov
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