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How CT & PT ratings are decided for a 11KV or 33KV
transmission line?
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Answer Posted / balasubramanian
CT PT ratings are decided on
1. Class : Protection, metering (for CT)
2. Burden: The load of relays, cabling, etc.
3. Fault level: The thermal capacity of CT for bearing the
fault current for required time 1 sec, 3 sec etc.
4. The voltage level of the system
| Is This Answer Correct ? | 19 Yes | 1 No |
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