why do transformer humm ??????????

2 Answers  

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why the India electrical supply transmission loss is high when compare to us

0 Answers  

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While connecting bulb in Series/Parallel,there is any difference in glowing

3 Answers  

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7. A resistance of 30 ohm is connected across 240v supply. If a resistance R ohm is connected in parallel with 30ohm resistor across the same supply, the current drawn becomes triple of original one The unknown resistor R is

2 Answers  

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iam preparing for rrb section engineer post in electrical branch.suggest the right textbook for my reference.fromwhere i will get the previous q.papers?

0 Answers   RRB,

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what is parellel power factor correction?

2 Answers   HCL,

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how can we save enegry by using VFD for Resiprocating Air compressor which is having more unloading running hours

0 Answers   MRF,

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Latching current is slightly less than ?

2 Answers  

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How cable from Kit-Kat to main switch, from starter to motor are designed?

0 Answers  

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Tell the details of the precommissioning tests that are performed on distribution transformer, power cable and switchgear (11kv).

1 Answers   Reliance,

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how to calculate the change over time for star delta starter for different KW motor?

0 Answers  

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refrigeration cycle?

1 Answers   MAHINDRA, Shapoorji Pallonji Group(SPCL),

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