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How to test the vector group of a Yd11 transformer? what are the relations to be checked between various vectors to confirm this vector group?
4471how rating of transformer is selected for any new plant/what kind of load is cosidered/what kind of fadtors are considered/ pz give standard procedure
2 4742What happen if you keep open the Neutral Grounding Switch in open condition of the HT Generator at starting and again on load if it open then?
1 4963by what factor the starting current is used when comparing star and delta connection for motor starting?
2068In oil transformer which oil is used & what should be the insulation resistance & heating capacity.
2 5013hi.. i am krishna. i've complide my diploma engg.in electrical.i applied many places for jobs.but i am always fear from written test.ican't get success in it. i think my basic engg. is weak..show me some idea please..!
5 8369Post New Electrical Engineering Questions
diff. between tension mode & speed mode
what are the effects when a salient pole alternator is run at high speed like 3000 r.p.m?
Q.1:What protection will be used on HT and LT side of 33/0.4 KV, MVA transformer. Indicate capacities of protective device to be used. Q.2:Which types of back-up protections are used in the power transformers? What do you understand by the term over travel in the relay? Q.3:How star and delta connected winding transformer are provided from earth fault
Can anyone tell me some hints about what type of questions are asked by the interviewer by an Electronics engineer when company is installing an IPP and wants a team of engineers?
In a carnot engine with an efficiency of 40%, the heat rejected to the sink at 27 C is 60 kJ, then the heat supplied in kJ to the engine by the sources is
What is the lifetime of a Thyristor? Is there a recommended lifetime for thyristors after which they should be replaced?
how we do Vector group ,magnetic balance and tap changer test in Transformer?
what is the difference between "Rotary bypass isolation switch and Normal bypass switch" pls share indepth techs?
I want the details about BHEL company examination.Can anyone able to help me please.
How impulse levels are calculated that for 11kV impulse is 75kvp, for 24kV impulse is 125kvp ?
What is a feedback in control system?
How to calculate no of Lighning arrestors are required for protecting 50mX 50m*20m cubical building and locations of LA?
If the Brush of DC motor is shifted by 90 deg, then what happens to voltage and torque? Both voltage and torque are zero. how to justify the answer?
how ups works ? various parts of ups and working principle
in dc suppy frequency is zero why? if dc frequency is zero how to exist dc transients and ac transients
