2.問題:10KV饋線發生短路故障,母線電壓降低,發生甩負荷的現象。哪位高人有解決的好辦法?
答案:發生甩負荷的現象,是因為10KV饋線發生短路故障后,母線電壓降低,使其它10KV饋線的低電壓保護動作造成的;要解決這個問題,可采取下面的方法:
1、在10KV饋線上加裝限流電抗器,以限流短路電流數值;
2、合理調整10KV饋線開關保護定值的時限,在饋線發生短路時,快速切斷事故源,防止母線電壓“繼續”降低;
3、適當降低10KV饋線開關低電壓保護動作定值,使其能在低電壓幅值上避開其它回路短路故障后的電壓降低;
4、適當延長10KV饋線開關低電壓保護動作時限定值,使其能在其它回路短路故障掉閘時間內不動作,使保護在時限上有選擇性。
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FUJI SHARP VME BUS VISION SERVO MODULE VM1911
FUJI SHARP VME BUS VISION CAMERA MODULE VM1710
FUJI SHARP VME BUS VISION MEMORY MODULE VM1220
FUJI SHARP VME BUS VISION MEMORY MODULE VM1931
Lens Hood for Fuji FinePix S5800,Sharp VL-H870
FUJI SHARP VME BUS VISION POWER SUPPLY MODULE VM1911
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Fuji Sharp SMT VME VM1530 Circuit Board
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Fuji Sharp SMT VME VM1530 Circuit Board
FUJI SHARP VME BUS VISION VIDEO MODULE VM1610
Fuji Sharp SMT VME VM1530 Circuit Board
Fuji Sharp SMT VME VM1110T Circuit Board
Fuji Sharp SMT VME VM1530 Circuit Board
Fuji Sharp SMT VME VM1220 Circuit Board
Fuji Sharp SMT VME VM1110T Circuit Board
Fuji Sharp SMT VME VM1510 Circuit Board
Fuji Sharp SMT VME VM1520 Circuit Board
Sharp Fuji VM1540 X0018PA-1 SMT BOARD CARD
Fuji Sharp SMT VME VM1220 Circuit Board
Fuji Sharp SMT VME VM1520 Circuit Board
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2-prong canon Sharp Kodak Fuji Printer Power cord cable
2-prong canon Sharp Kodak Fuji Printer Power cord cable
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Sharp Fuji VM1530 X0012PA-1 Servo Card Assembly
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資訊來源:漳州鼎晟達自動化設備有限公司
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