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When both contractor star & delta is hold in star delta motor ?? So what happen in this case ??
1 2344if flux and load static in dc motor and supply voltage increases 20% then what happened in speed
1865Shall we use Dyn1 transformer in place of Dyn11 for motor application as a distribution transformer
1 2841From reading, Under voltage relay used also as phase sequence relay now, Why I use under voltage and phase sequence relay in the same circuit (ATS)?
1736What is the permissible limit of shaft voltage for 6.6 KV motors ? Why? Is there any standard is available?
2605In what situations relays are used in Circuit breaker? In Above what rating of Circuit breaker the relays are used? Why relays are not used for CB like MCB?
1684How relay coordination has to be done? what are the inputs are required for this? Please explain this with calculation method?
1754Now I inject 1kv DC supply r&y=??? R&Y=?? Y&B=?? B&R=???? RYB&N=??? RYBN&E=????? Minimum value====???????
1 3024What will happen if the rotor circuit of a slipring I.M. is kept open & electric supply is given to its stator winding.
2 7256Post New Electrical Engineering Questions
why does make gain margin and phase margin on same plot.?
what is effect of leading power facter on the system and billing
Post possible questions for Power Factor Panel FAT / SAT
what material is the electrical housing wire made of? is there any difference for the telephone lines?
what is the effect of higher value of GD???
Define load factor?
I need a formula to calculate the size of cable as per load but in the terms of length. Please Reply me as i search lot of sites but i did not get the answer.
If a 3 phase induction motor is in off condition in the conveyor and rotor of the motor keeps moving with the conveyor than the resistance of windings of motor varies. why is it so ??
Phase control and integral control are used for?
where we use the SFU & FSU?
Briefly describe means used by electricity suppliers to influence the flow of active and reactive power in power networks (one for each type)?
Apparent power is expressed as V * I(Conjugate). Why not in V * I ?
why burdens of VTs is more than CTs?
Name the component u would expect to find in a switchgear assembly?
Why High voltage are generate noise ?
