why neutral of 6.6 kv star connected sq. cage induction
motor does not get earthed, though for earth fault
protection it is must.
- 7 Answers
- 11140 Views
- I also Faced
- E-Mail Answers
Answer Posted / budhaa lal
because we use the CBCT both side(feeder side and in motor
winding R,Y,B.)and for earth fault protection we give the
both ct's output to the motor protectio relay. and when
earthfault ocurres in motor there is unbalance in core
respectively and sensing by motpro relay and it gives
tripping as per setting.
| Is This Answer Correct ? | 2 Yes | 4 No |
Post New Answer View All Answers
how you configure motorvision relay (L&T make)from DCS
how braking & making capacity of circuit breaker is calculated?
How the PF control while running DG set with load
How to do cable earhing? whether by grounding Armour to ground or by running extra G.I wire along with cable? which one is preferred mostly amoung them? If the second one is more preferable how many GI wires to be run along with cable (1 or 2)?
how is the cable tray designed & how its total length is calculated for an Industrial plant Say for Ex. (500KW Motor Load)
how to interlock 3 nos MCCBs using under voltage coil. please provide me circuit diagram?
is it possible to start a motor in felid connected to a remote mcc
WHY TERTIARY OF POWER TRANSFORMERS IS LOADED WITH EQUIPMENTS LIKE CT,PT,ISOLATOR AND CB
How to calculate energy stored in a capacitance
in an electronic tri vector meter when the current and voltage sequence changes ? what is the effect of phase sequence on recording of meter
Why are the laminations insulated from each other?
what are pilot cells
A 1F capacitor is charged to 100V initially. A 1H inductor is connected accros the capacitor througha a switch. The current in the circiut when the switch is closed is____
State any two nuclear power stations in India, with their generating capacity.
Define Electrical Insulation and examples of Solid,Liquid and Gaseous insulating materials?
