Circuit Breaker Ratings: 550KV
Power circuit breaker preferred ratings per IEEE C37.06. Covers 15.5kV through 800kV. PK = voltage class, SK = interrupting rating (kA, Number type). Fields include continuous current, close-and-latch, TRV, and interrupting time.
| voltage class | interrupting kA | close latch current kA crest (kA) | continuous current A (A) | interrupting time cycles (cycles) | rated max voltage kV (kV) | rated trv kV peak (kV) | short circuit current kA (kA) | standard |
|---|---|---|---|---|---|---|---|---|
| 550KV | 40 | 104 | 3,000 | 3 | 550 | 1,100 | 40 | IEEE C37.06-2009 |
| 550KV | 63 | 163.8 | 4,000 | 3 | 550 | 1,100 | 63 | IEEE C37.06-2009 |
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