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Explain Need of a starter in a dc motor.? Also explain any two starting and speed control method of dc motor?
1720what is the problem when i want to close a circuit breaker by local position it closes well.but when i close it in remote position it trips
1613How relay works, reverse relay, master relay, os relay, earth fault relay and what is its setting point
cpgn,
1804I have 10 amp MCB for my air conditioner of 1.5 ton capacity. When I connect the ac direct it is started running but when connected through stabliser the Mcb Get trip and air conditioner couldn't start.please confirm whether Mcb is required to be upgraded to 20 amp. There is no fault in ac and the stabliser. Please advice the reason of tripping the mcb when connected through the stabliser.
1 3676Post New Electrical Engineering Questions
in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?
During Starter Panel Com missing I Found The Main Incomer 40Amp MCB 10KA Trip When Motor Change Star To Delta Motor Rating 20HP BUT When We Use Same MCB To Other Motor It Does Not trip Or What Is Necessaries for Star Delta Starter MCB SFU MPCB OR MCCB And What are The Breaking Capacity of MCCB in the Motor above 15HP
What is difference is of VSD,VFD,VSDS, are they the same as the direct current to control dc using above mention
Atwhat condition reverse power relay will act?
What is the difference between electrical earthing and electrical grounding?
I AM FROM ELECTRICAL ENGINEERING ? I AM ASPIRING FOR "BHEL".HOW I HAVE TO PREPARE .ON WHICH TOPICS TO BE CONCENTRATE MORE.PLEASE GIVE FULL DETAILS OF WRITTEN EXAM.
Define liftable weight of a transformer? Does the total weight of transformer include oil weight?
why the protection turbo generators is most complex?
Installation method of self treated earth electrode.
Can u Explain about the electronic trivector meter and the use of data converters in them?
we need a ntpc previous papers
how dia of wire and angles are calculated for overhead shielding wire to protect substation equipment from lightening strokes???
What is the tension required for the 25000 CFM AHU belt
Explain few advantages of electric traction system?
for 11KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV UG system what will be typical per KM "R" "L" "C" parameter.
