Transcription of 69kV二次系統過電流電驛保護協調實務
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69kV二次系統過電流電驛保護協調實務
31. 69kv .. Protective Relay . CT PT (345kV/161kV) . (161kV/ 69kv ) . (161 ) .. 1. P/S . 69kv . 69 .. DC .. 36 69kv . 32. 1 .. ( ) ( ) . 1. ( ) 1. ANSI/IEEE Std 242-1986 . ( ) . (42 ) . 2.. Normal Inverse Type 2.. 3. GPT . 4. 10 MVA 3.. 87T 161KV ; .. 4.. 5.. 51Z . 6. 345kV 161kV 69kv GIS 5.. 87B 6 . 6.. 7. 69kv . CT CT . 20 . 10% . 69kv 36 . 33. ( ) .. ( ) . 51 15 .. 51N .. ( ) . 51 25 .. 51N .. 1.. 51 35 kV .. 51N . 2. 69 kV. 51:42 .. 51 . 69kv . 51N 51N:10 .. 55 . 51Z .. ; .. 3 4 . 3 . 4 T . ( ) . 1.. 2 (1) .. (2) CTI.. ( ) .. (Magniude Relay) . 36 69kv . 34. (3) CTI TRy2= TRy3+ . TRy1= TRy2+ .. 2. (Coordination Time Interval CTI) . (1) . (2) . (3) . (4) .. (5) ~ 6 .. (6) ANSI CTI ~.
69kV二次系統過電流電驛保護協調實務 電驛協會會刊36期 32 四、保護電驛標置原則
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