what is protections used for 6.6kv ht motor

Answer Posted / ganeshyeole

1. phase over curtent27.
2. earth fault 27b.
3. unbalance46.
4. 48 locked rotter.
5. start per hour.
6. thermal overload49.
etc.

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What are the classifications of heating element?

1532


new 90kw motor installed so how I purchased cable ,fuse,etc please give me technic for cable selected why always capacitor delta connection

1373


When and where resistance earthing is used ? How to calculate the time constant for earth fault

1343


I Just want do EHS Certified Certification Distance Course From Govt approved,so can any body provide me details.

1702


What descriptive information does the NEC require to be marked on all conductors?

1471






Generator,motor and alternator Working principal Please explain easily

1006


Why need 3phase machine double earthing?

1343


We need to current density & short circuit calculation at 65kA for aluminium & copper busbar.

1264


What is ST and specify its range of voltage.

1518


What is power in wattage of 8.5 TR AC

1199


can we conduct the swineburne's test on a dc series motor? why?

1641


why do we use 25kv supply for traction purpose?

1516


can a 150 kva 3 phase 440v/230V delta-wye step down transformer can be use as step up transfoermer with connected loads at 440v side?

1277


What types of high speed CMOS circuits have you designed?

1643


how to compare with Relay settings for HT< panels, RMU panel, and PSS CSS transformer?? 1) Load amps, 2)Tripping time, 3) CT ratio, 4)Cable size 5) Transformer KVA rating 6) transformer full load amps

744