Answer / ramprasad sharma

We can check any transformer with meggar for ground fault
it means resistance value between winding and body. we can
check insulation value between primary winding and
secondary winding.

our company have 750 kva oil transformer.still we have facing a problem that is when voltage is 11.5 kv coming from HT side then LT-side voltage is 420v or above at tape 1.please give me best solution to decrease the voltage.

3 Answers  

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How much DC or AC Current that a Human Body withstand for Electrical Shocks?

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DG cranking voltage?

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what is the ka rating of mccb. and how it is decided .

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WHY KVAR IMPORTANT WHEN ANY PLANT IS RUNNING ON IT'S OWN POWER PLANT?

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what is laser diodes?

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1.Why use in ups in software's,reason,and pls explain. 2.what is the isolation transformer and main use it's functioning and partes.

5 Answers   TATA, Wipro,

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What is it mean Transformer 100/133MVA Power Transformer, significance of 100/133 MVA and 230/115KV please

3 Answers  

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63MVA,220KV/6.9KV Transformer LV side neutral is connected to Earth pit through NGR. Whether this earth pit required to connect with near by below grouding earth mat or it is to be kept separate?

0 Answers   GSECL, L&T,

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how we test a 3 phase motor on single phase supply....? HOW WE RUN A 3 PHASE MOTOR ON SNIGLE PHASE. supply for testing..? how we verify of a 3 phase motors 6 wire & name thame a1/a2/a3..b1/b2/b3 and c1/c2/c3 for connecting star delta starter ........i have only 1 phase supply ? help forum..........

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what is power?

1 Answers  

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