Answer Posted / bhagya

A transformer tap is a connection point along a transformer
winding that allows a certain number of turns to be
selected. By this means, a transformer with a variable
turns ratio is produced, enabling voltage regulation of the
output. The tap selection is made via a tap changer
mechanism

what are the application of over current relay?

5260

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why the arc welding machines require parallel earthing systems? ie why each machines are connected to earth pit by separate wires during earthing? wats it adavantages?

2214

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what happen ehen synchronisation is done at below rated speed

2151

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State how to produce a constant rotating field by application of alternating currents to stator armature of a three-phase squirrel-cage induction motor

2498

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How to calculate the size of earth cable to earth the neutral of UPS ?

1947

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

4236

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How will you utilise electrical power? You can start from the generating station.

1918

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What is PEC??Applications........

1984

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HI SIR, AM PREPARING FOR RRB FOR SECTION ENGINEER POST. PLZ SEND ME THE PREVIOUS QUESTION PAPERS AND HELP ME. I HAVE NO ENOUGH TIME MY EXAM DATE IS 22ND JUNE.... MY EMAIL ID IS nalla.amarnath@gmail.com

1946

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how to put cable sizing and cable glands size for respective cable & Cable Lug size in a DB sectors???

2172

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Can any one know what are the symbols at the down (below) the analog ammeter??? there are 4 symbols which are they ?????

1910

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how electrical earthing maintenance done in industry?

1630

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Inductor and capacitor........power in one phase and ...... in it another phase.

2146

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how to interlock 3 nos MCCBs using under voltage coil. please provide me circuit diagram?

2609

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pls tell me about ups internal connection & we have given only 3 phase supply to ups system how get 4 wire (R Y B N )

2765

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