what is meant by motor protection relay & its working
principle ?k
Answer / vinoth
its for Protecting motor in overload,earthfault,underload and single phasing.
it need CT inputs / Some of the relay will works without CT by direct insert the power cable in Power-hole of relay.
Is This Answer Correct ? | 0 Yes | 0 No |
What are the commonly used schemes for the bus zone protection?
Is reverse power relay of generator operate due to voltage variation problem? please clearify.
what is the principle of switch gear? where its function ?
The sodium vapor lamp is not glows when it is connected a distance of 5 meters above from gearbox, why ?
what is meant by leakage current of a capacitor?
why distribution transformer are of DY11 type?
define ac reactor? thier application;
i am BSEE student, my project study is to synchronize the generator of an hospital, it have a one 313KVA standby-power diesel gen.,and three 100kva transformer.The generator system is operated manually and no ATS or UPS. one more new building is being build so the transformer will be upgrade to a higher vale. 1)how i can connect the new gen. to the old gen. and to the synchronize panel? 2)what is the new gen. to be buy?(rating, etc.) These is my title: To synchronize the generator system of the ____ Hospital. Anyone have a good title? Thanks.
why the neutral point is zero in star connection?
what is the defination of 'Mass' & 'Weight'
why we step up voltage for reducing the loss, even if voltage and current are proportional anr resistance remains same
After taking shutdown of 11kv feeder, if you see 5kv by phasing stick in the cable side, is it possible to close earth switch in cable.