母线故障 meaning in English
bus-bar fault
Examples
- At present the special protective devices for busbars in middle and low voltage distribution networks are still not common . only appended to original busbar protections , so the faults occurred in middle and low voltage busbars have to be cleared by back - up relaying with long time delay . thus , some kind of faults may spread which originally could be cleared and tremendous economy loss may appear
在电力系统中35kv及以下电压等级的母线由于没有稳定问题，一般未装设专门母线保护，母线故障要由较长延时的后备保护来切除，使不少本可以得到控制的故障被发展和扩大，造成了巨大的经济损失。 - The mutual inductor of electric current and voltage mutual inductor play an important role in relay protection . prevent from ct differential to protect and miss movement an important subject that the generatrix is protected on the saturation , put forward two electric current pass zero hour linear to spread person who become put into differential to protect in ct in recent years , avoid ct saturation district , can judge the bus bar trouble correctly
但是在母线区外发生短路故障(特别是故障电流含有大量非周期分量)时， ct会出现饱和现象， ct饱和后，不能正确地传变一次侧电流，从而使二次电流发生严重畸变，产生很大的差电流，这样就容易引起误动作。防止ct饱和时差动保护误动作一直是母线保护的一个重要课题，近年来提出的在ct二次电流过零时的线性传变区投入差动保护，避开ct饱和区，能对母线故障做出正确判断。