69kV二次系統過電流電驛保護協調 ... - relay.org.tw

1 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.

2 (6) ANSI CTI ~ .. TBack-up TMain+ . TBack-up .. TMain .. Tap . Level .. ( ) #750(#1 MTR) #760. (#2 MTR) . 1. CTR . 5 . IFL1 25 MVA / 69 kV .. = = 3. 400/5---Y . (1) CB6 2. CTR . 6 IFL2 25 MVA / kV . A. : Ry3 = B. : Ry2 Ry1 = . 2000/5--- . (2) CB4 CB5 . 6 . A. : Ry2 (1)51 Tap . B. : Ry1 51 (400/5)= (3) * ~ = 51 Tap 4 . 69kv 36 . 35. (2)51 Level . 51 1173/(400/5) /4 = M= IL/IH - TL/TH / S * 100%. SPAJ140C ABB IH , IL . Level = . 51 SPAJ140C T/L = TH ,TL . 4 . (3)50 S IL/IH TL/TH . 50 (400/5) 10~15 M% = / * 100%=. = 30A M%+ . 50 SPAJ140C 30A 6In %=35% . 4. 87T ( ) kV . (1) CA ABB 1. 51Z . (2) 51Z . a. 7000A . 400/5---Y 1000/5 51Z . b. 55 51Z Level 2000/5--- 7000A (1000/5) 2=.

3 (3) 55 . IH = / 400/5 = CO-8(ABB) Level=5 50 . IL = / 2000/5 = . 2. 51 . IL / IH = / = (1)51 Tap . (4) 51 1208/2000/5= TL / TH = 10 / 5 = 2 * ~ = CA ABB Tap 5 51 Tap 4 . 8 9 10 (2)51/51N Level . Tap 51 6613/2000/5 /4 = . 5, TH=5 SEL351 SEL . Tap Level = ( ). 10, TL=10 51 SEL351 T/L = 4 87T CA ABB 5/10, 51N 7000/2000/5 /4 = Level = . (5) Mismatch SEL351 SEL . Level = ( ). 51 SEL351 T/L = 4 50/50N .. 36 69kv . 36. ( ) 69kv #750-#1 MTR #760-#2 MTR . 1(Power Fuse 1) 200 Tie . 7 PF1 . #750-#1 MTR 200 Tie F#11 #760 . 8 PF1 . 69kv 36 . 37. (Power Fuse2) 200 Tie . 9 PF2 . #760-#2 MTR 200 Tie F#12 #750 . 10 PF2 . 36 69kv . 38. ( ) 69kv P/S #1S/S #2S/S #3S/S #750-#1 MTR .. 1. #750-51N 200 Tie.

4 11 #3S/S #750-#1 MTR . 2. #750-51N 200 Tie . 12 #3S/S #750-#1 MTR . 69kv 36 . 39. 3. P/S #620-51N . 13 P/S #620-51N . 4. P/S #620-51N P/S # #750 N-1 . 14 P/S #620-51N . 36 69kv . 40. 5. P/S #620-51N P/S # #760 N-1 . 15 P/S #620-51N . ( ) 69kv P/S #4S/S #5S/S #760-#2 MTr.. 1.#5S/S #760-51N 200 Tie . 16 #5S/S #760-51N . 69kv 36 . 41. 2. #4S/S #610-51N P/S #640 N-1 . 17 #4S/S #610-51N . 3.#4S/S #610-51N P/S #630 N-1 . 18 #4S/S #610-51N . 36 69kv . 42. 4. P/S #630 51N . 19 P/S #630 51N . 5. P/S #630 51N P/S #750 N-1 . 20 P/S #630 . 69kv 36 . 43. 6. P/S #630 51N P/S #760 N-1 . 21 P/S #630 . ( ) 69kv #750-#1 MTR #760-#2 MTR . (Power Fuse 1) 200 Tie . 22 PF1 . 36 69kv . 44. 2.

5 PF1 #3S/S #750-#1 MTR N-1 F#11 200 Tie . 23 PF1 . (Power Fuse2) 200 Tie . 24 PF2 . 69kv 36 . 45. #5S/S #760-#2 MTR N-1 F#12 200 Tie . 25 PF2 . ( ) 69kv P/S #1S/S #2S/S #3S/S #750-#1 MTR . 1. #750-51 200 Tie . 26 #3S/S #750-#1 MTR . 36 69kv . 46. 2.#2S/S #630-51 . 27 #2S/S #630 . 3.#1S/S #620-51 . 28 #1S/S #620 . 69kv 36 . 47. 4. P/S #620-51 . 29 P/S #620 . 5. P/S #620-51 P/S # #760 N-1 . 30 P/S #620 . 36 69kv . 48. 6. P/S #620-51 P/S # #750 N-1 . 31 P/S #620 . ( ) 69kv P/S #4S/S #5S/S #760-#2 MTR . 1. #760-51 200 Tie . 32 #5S/S #760-#2 MTR . 69kv 36 . 49. 2.#4S/S #610-51 P/S #640 N-1 . 33 #4S/S #610 . 3.#4S/S #610-51 P/S #630 N-1 . 34 #4S/S #610 . 36 69kv . 50. 4. P/S #630 -51.

6 35 P/S #630 . 5. P/S #630 -51 P/S# #760 N-1 . 36 P/S #630 . 69kv 36 . 51. 6. P/S #630 51 P/S# #750 N-1 . 37. P/S #630 . ( ) ( ) . 69kv .. Tap Level IIT. P/S#1 MTr. 50/51 NI. 1 161/69/11kV CO-8 ABB 0~12A 2000/5. #750 50N/51N 2 NI. P/S#2 MTr. 50/51 NI. 2 161/69/11kV CO-8 ABB 0~12A 2000/5. #760 50N/51N 2 NI. # P/S 50/51 4 NI. 3 #600 Tie CO-8 ABB 0~12A 2000/5. 50N/51N 4 NI. P/S#1 MTr. 4 161/69/11kV 51NT CO-8 ABB 0~12A 1200/5 NI. #1750~#750. P/S#2 MTr. 5 161/69/11kV 51NT CO-8 ABB 0~12A 1200/5 NI. #1760~#760. # P/S 50/51 SEL- 5=1In NI. 6 #620 311L. SEL 0~12A 2000/5. 50N/51N 1= NI. #1S/S 50/51 SEL- 5=1In NI. 7 #610 311L. SEL 0~12A 1200/5. 50N/51N NI. #1S/S 50/51 GRL- 5=1In NI.

7 8 #620 711P. TOSHIBA 0~12A 1000/5. 50N/51N NI. #2S/S 50/51 GRL- 5=1In NI. 9 #620 711P. TOSHIBA 0~12A 1000/5. 50N/51N NI. #2S/S 50/51 GRL- 5=1In NI. 10 #630 711P. TOSHIBA 0~12A 1000/5. 50N/51N NI. #3S/S 50/51 GRL- 5=1In NI. 11 #630 711P. TOSHIBA 0~12A 1000/5. 50N/51N NI. #3S/S 50/51 4= 30 NI. 12 #750-#1 MTR. SPAJ140C ABB 0~12A 400/5. 50N/51N 10 NI. # P/S 50/51 SEL- 5=1In NI. 13 #630 311L. SEL 0~12A 2000/5. 50N/51N 1= NI. # P/S 50/51 SEL- 5=1In NI. 14 #640 311L. SEL 0~12A 2000/5. 50N/51N 1= NI. #4S/S 67 SEL- 5=1In NI. 15 #630 311L. SEL 0~12A 1200/5. 67N 1= NI. #4S/S 67 SEL- 5=1In NI. 16 #640 311L. SEL 0~12A 1200/5. 67N 1= NI. #4S/S 50/51 5=1In NI. 17 #610. GRL-711P TOSHIBA 0~12A 800/5.

8 50N/51N NI. #5S/S 50/51 5=1In NI. 38 18 GRL-711P TOSHIBA 0~12A 800/5. #620. 50N/51N NI. #5S/S 50/51 4= 30 NI. 19 #760-#2 MTR. SPAJ140C ABB 0~12A 400/5. 50N/51N 10 NI. 36 69kv . 52.. Tap Level IIT. #3S/S 1 #750 #110 51Z CO 7 ABB 0~12A 1000/5 2 5 NI . #1 MTR 2. #5S/S #760 #120 51Z CO 7 ABB 0~12A 1000/5 2 5 NI.. #2 MTR #750 50/51 4= VI . 3 SEL 351 SEL 0~12A 2000/5 #110 50N/51N In VI.. #760 50/51 4= VI. 4. #120 50N/51N SEL 351 SEL 0~12A 2000/5 In VI . 5. #110~#120 BUS . 50/51 SEL 351 SEL 0~12A 2000/5 5=1In VI.. 200 Tie 50N/51N VI. In . F#11 50/51 5=1In 14In EI. 6. #110 kV 50N/51N SEL 351 SEL 0~12A 600/5 In 5 EI .. 7. F#12 50/51 SEL 351 SEL 0~12A 600/5 5=1In 14In EI.. #120 kV 50N/51N 5 EI.

9 In . POWER 8 PF1 PF125E . FUSE . POWER 9 PF2 PF125E . FUSE . [1] . Applied Protective Relaying . [2] . 88 . [3]ASPEN .. 69kv 36.