Why should we use the igniter in the sodium vapour lamp.

7 Answers   ABB, Delphi, Mudhra, NTPC, PICT,

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if the 10 hp motor name plate indicates rated current as 13.6 amp the what will be the thermal relay setting? Why? And in how much time relay will trip at the set value?

2 Answers  

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How electrical power is generated by an A.C Generator ?

1 Answers   Hindalco,

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The electromagnetic torque developed is proportional to what in a D.C series motor?

0 Answers   HPCL,

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Power Factor Correction Panel (Manual & Automatic)

0 Answers  

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Can the field winding in synchronous machines be placed on stator?What is the limitation of such arrangement?

2 Answers  

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how to make an earthing certificate

0 Answers  

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use of choke in APFC panels

2 Answers   Kemrock,

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What conditions are required for transformer to operate at low frequencies ?

0 Answers  

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Why the meters sonnected to metering core of CT are not damagedon event of a fault??? Explain the phenomena??

1 Answers   Schneider,

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What is the purpose of stand by earth fault protection for transformer ?

0 Answers  

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What is the lower limit of break-down voltage of converter transformer.

0 Answers   Tata Steel Limited,

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