why transformer is conneted to dc for polarity test.it doesnt work in dc?

1 Answers   ABB, KVPY,

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single sphase energy meter measur

7 Answers  

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how did i get the competency certificate as electricle supervisor. iam completed my b.tech.but i dnt have any experince, this certificate is required for applyng ongc mangement trainees. what should i do sir please suggested me

0 Answers   ONGC,

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how you taken aotitude test

0 Answers  

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is there any current flows in our body?

4 Answers  

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what's the requirement of Dy11d0 connection of 3 phase transformer?what's use of it?

0 Answers   Thermal Systems,

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how can we select the rating of Load break switch that is connected to the primary protection of 200 kva 11kv/415v distribution transformer?? step by step calculated answr pls...thnk.u

2 Answers   Maruti Suzuki,

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we use 400/5A ct and 35/roor3KV,/0.1/root3KV,0.1/root3KV pt ratio. What is the multiple factor of this meter.

0 Answers   ABB,

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please anybody help me to find out the BHEL trainee Exam previous year questions papers . if u ve pls. send it to surekhared@gmail.com

0 Answers   Bhel,

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What is the thumb rule for calculating the P.F correction Capacitor?? Say for 100 hp motor how much micro farad Capacitor is needed .... Thumb rule so quick answer wanted

9 Answers   Bhel, Dubai Group,

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what is the basic difference between fan and home motor if both have single phase induction motor?

4 Answers   Engineers India Limited,

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What will happen if we parallel two transformer with different %impedace?

3 Answers  

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