ABB发电机用断路器hec_7_8

Product Brochure Generator Circuit-Breaker Systems HEC 7/8 2 | ABB G Technical Data Generator circuit-breaker system type HEC 7A/8A HEC 7B/8B HEC 7C/8C General Rated maximum voltage kV 30 27.5 25.2 Rated frequency Hz 50/60 50/60 50/60 Rated continuous current 50 Hz HEC 7 natural cooled A rms up to 24000 up to 24000 up to 24000 HEC 8 natural cooled (enhanced convection) A rms up to 28000 up to 28000 up to 28000 Rated continuous current 60 Hz HEC 7 natural cooled A rms up to 22000 up to 22000 up to 22000 HEC 8 natural cooled (enhanced convection) A rms up to 26000 up to 26000 up to 26000 Rated insulation level Rated power frequency withstand voltage to earth and across circuit-breaker/switch contacts kV rms 80 80 80 across isolating distance of disconnector kV rms 88 88 88 Rated lightning impulse withstand voltage to earth and across circuit-breaker/switch contacts kV peak 150 150 150 across isolating distance of disconnector kV peak 165 165 165 Circuit-breaker Rated peak withstand current kA peak 440 521 575 Rated short-time withstand current kA, 3s 160 190 210 Rated short-circuit making current kA peak 440 521 575 Rated short-circuit breaking current kA rms 160 190 210 Rated operating sequence CO - 30min - CO Opening time ms 30 ± 3 30 ± 3 35 ± 3 Rated interrupting time ms 56 56 61 Mechanical endurance life CO 10000 10000 10000 Disconnector Rated peak withstand current kA peak 440 521 575 Rated short-time withstand current kA, 3s 160 190 210 Operating time s 2 2 2 Earthing Switch Rated peak withstand current kA peak 440 521 575 Rated short-time withstand current kA, 1s 160 190 210 Operating time s 2 2 2 The above data are not limiting values. Additional data on request. We reserve the right to alter data and technical details without notice. Equipment Options 1 Generator circuit-breaker 2 Line disconnect switch 3 Earthing switch 4 Manual short-circuiting connection 5 Surge capacitor 6 Current transformers 7 Voltage transformers 8 Surge arrester 6 7 5 3 1 2 6 4 3 5 8 7 (by removal of cover) ABB | 3 Dimension Drawing HEC 7 Ø1250 m in . 29 00 50 00 * ) 1300 *) 32 60 40 00 * ) 1200 *) 2000 N(1650-2100) N(1650-2100) 810 390 *) 4400 + 2N *) Transformer Side Generator Side N = Phase distance *) min. space required for erection and maintenance 16 00 -1 75 0 4 | ABB Dimension Drawing HEC 8 Ø1250 m in . 34 00 50 00 * ) 1300 *) 32 60 40 00 * ) 1200 *) 2000 N(1850-2100) N(1850-2100) 900 300 *) 4400 + 2N *) Transformer Side Generator Side N = Phase distance *) min. space required for erection and maintenance 16 00 -1 75 0 ABB Switzerland Ltd High Voltage Products Brown Boveri Strasse 5 CH-8050 Zurich / Switzerland Phone: +41 58 588 34 24 Fax: +41 58 588 16 44 www.abb.com/gcb Contact us © C op yr ig ht A B B . 1 H C 00 70 73 0 E0 2 / A B 10