Answer / k.prakashchandra

This also applies to stator earth fault in generators . 100 % protection means the whole winding is protected i.e. even the slightest stator earth fault will result in tripping . In 95% , 5% fault is allowed

why we r fixing harmonic filter

3 Answers   Siemens,

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Squirrel cage induction motor has constant A slip B stator current C rotor resistance D speed at all load

1 Answers  

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Explain with example of functional requirements of protection relay in terms reliability, selectivity, sensitivity

0 Answers   NCC,

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when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??

0 Answers  

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What is system earthing?what are the types?

1 Answers   ABB,

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if ELCB and RCCB connected in series,what wiil be the result

2 Answers   BEC,

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Why high voltage lines (overhead ) are called high tension lines?

8 Answers  

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In protection core of a C.T. why Knee pont voltage is greater than SLV and in metering its viceversa?

2 Answers  

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How much current flow in no load condition of a motor?

8 Answers  

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A 3-PHASE TRANSFORMER IS USED TO STEP-DOWN THE VOLTAGE OF A 3-PHASE, 11KV FEEDER LINE. PER-PHASE TURNS RATIO IS 12.FOR A PRIMARY LINE CURRENT OF 20A, CALCULATE THE SECOUNDRY LINE VOLTAGE, LINE CURRENT AND OUTPUT KVA FOR FOLLOWING.A)STAR- DELTA.B)DELTA-DELTA.

0 Answers   Ispat, Red Bull,

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What the capacitor Current formula?, For 1 KVAr how amps its required? for using the KVAr for boosting the PF Design Calculation.( Eg: for 30 KVAr required how many KW?)

17 Answers   Alstom, Call Centre, EDC, HCL, Procon Engineers,

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What happens if a +vely charged particle is placed in the centre of a room and assume that the north side wall is having magnetised with north polarity and south side wall is magnetised with south polarity. In which direction the particle will move

5 Answers   BSNL,

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