In 400KV Switchyard, we have used Circuit Breaker With PIR,
what is the significance of PIR & why they'r used?
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Answer Posted / t r sastry
PIR - Pre-insertion resistor
PIR is used for safe handling of the transients in EHV
switching operations. PIR will be active only for few milli
seconds during switching after which it will be out of
circuit
| Is This Answer Correct ? | 7 Yes | 3 No |
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