why dc source used for HV breakers and Relays operation?
Answer Posted / kannan
While we will use ac supply for HV and Relays following
disadvantages are available.
1.Tripping feedback can not see.
2.ac source is variable source.
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
Why the earth to phase voltage is high 250 compare to other two phases
we use 400/5A ct and 35/roor3KV,/0.1/root3KV,0.1/root3KV pt ratio. What is the multiple factor of this meter.
Why we are use dol starter up to 10 hp
What is meant by analogous system?
What happened when capacitor connect series in ac circuit?
what questions are asked in the interview for the post of an electrical maintenance engineer in FMCG companies?
why we use circuit breakers for switching instead of normal switching device?
As we know induction squirrel cage motor torque Directly praprortinal to applied voltage in star connection & delta also. If I connect 55KW Motor to DOL starter in load condition does motor withstand the load & what will be the current withdrawn ? motor will not fail ?
a battery is having capacity 100AH and 25% charging .if a load taking 10A & connected 6 hour .what is the final condition of the battery.
Define demand factor?
1.ZEBRA conductor(large size) 2.KUNDHA conductor( small size ) 3.panther conductor(very small ) 4.lepard conductor (very very small)
how to calculate percentage impedence at 75 deg C at normal tap
Define ampere
what is effect of length of air gap on performance of dc motor and generator?
WHAT IS MEANT BY SHEATH VOLTAGE IN 132Kv cable?