Interested to Buy Any Domain ? << Click Here >> for more details...
1)Why potential transformer primary site grounded?
2)can be loop between neutral & body for grounding?
3)What is the difference between ELCB &RCCB?
4)Why we use iron core in transformer insted of wooden core?
5)what is the principle of excitation?
6)Why we test the core balance test for transformer?
7)what is creepage?What is the creepage length for
insulators at different voltages?
8)How much type of relays used for differential protection
of generator,transformer & busbar protection?
- 5 Answers
- 13190 Views
- I also Faced
- E-Mail Answers
Answer Posted / neeraj pati
1. Here the HV or LV of THE TRANSFORMER is not concerned.
The star side of the transformer is grounded. i.e the
neutral of the star side is grounded for detecting the
earth fault current in case of earth fault in the protected
zone of the transformer.
2. No the body and the neutral should be grounded
separately . because huge fault current can flow in the
body and other auxilliary protection in case of a earth
fault.
8. Differential protection relays are used. eg ABB
SPAD346C1,c2,c3, Siemens 7ut612 etc .
| Is This Answer Correct ? | 3 Yes | 2 No |
Post New Answer View All Answers
Why the standard of ambient teperature mentioned as 40 degree celcius in machines.
What is big transformer parts and their function ? Ty
How to decide the size of the capacitor for a single phase induction motor say 2 HP ??
how to select electrical equipment such as fuse,dg,transformer,motor,msb,wire,cable as per the connecting load..please mention any books to design,take licence
What should be the protection scheme for a 15kw, 3-phase motor working in a lathe machine.
how can get electrical c licence.now i am working in spining mill , transformer capacity 2750KVA. SANCTION DEMAND 2250KVA. PLEASE ADVISE ME . MY CONTACT NO 09944226823
what is the minimum winding resistance of 30hp compressor, to run or to switch on
How to calculate the phase to phase clearness of HT /// LT bus bar?????
What is the end effect of linear induction motor ??
which motor have relatively high power factor and what is reason for have high pf? 1.capacitor run motor 2.shaded pole motor 3.capacitor start motor 4.split phase motor
What is CCM in Electrical ? where can we use this material?
If the line voltage is reduced to 75% of its rated value then by what percentage current will reduce ?? 75% 25% 50% no change and why ?
can we use trip light with bus coupler?
why +24 v and -48 v give to BTS? If -48v protect from surge then why we not use -24 v?
What is the different types of cable & current capacity of cable
