Answer / Pushpraj Singh

When the transformer secondary is open, no current flows in the primary as there is no load connected to it.

how to detect the presence of underground cable(while digging road)etc. -give the name of instrument

7 Answers   NTPC,

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Why Neutral Busbar CT & transformer neutral CT connected with phase CT in Restricted Earth Fault?

3 Answers  

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What is the Difference Between MCCB & ACB & VCB

58 Answers   Absotherm, Delton, Divine, JLL, Jyoti Ltd, Kirloskar, L&T, RPP, Siemens, TCL, TCS, Teekays, YSJ,

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In CTs tan delta point should be earthed , what is the reason behind it?

1 Answers  

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What is meant by turbo alternators?

1 Answers  

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what are pilot cells

1 Answers   KSEB,

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why rating of motor in HP

2 Answers   MSL,

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What happens when the polarity changes in CT? Explain briefly?

4 Answers  

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how could we know the size of cable by physical view?

1 Answers   Havells, United Engineering,

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why we use battery source for current transformer polarity testing?

2 Answers  

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why we need the starters for motors

1 Answers   L&T,

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What is control system?

1 Answers  

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