When the relative speed between the magnetic fields of stator and rotor does is zero under steady state operation?

0 Answers   HPCL,

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6. A DC AMMETER HAS R=0.1 OHM & CURRENT RANGE IS 0-100 A IF THE RANGE IS TO BE EXTENDED TO 0-500 A THEN METER REQUIRES SHUNT RESISTANCE OF ..........

2 Answers   SSC,

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why there is no current in the rotor body althrough the flux linking with it also get changes. why current only flows in windinds not in rotor

1 Answers   Vedanta,

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why a three phase transformer cant rotate like three phase motor

7 Answers  

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why buchholz relay is kept on inclined position and why it is cover??

1 Answers   GSECL,

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why we use copper earthing for neutral while for body GI.

1 Answers   Chennai Metro Rail Limited CMRL, Valeo Lighting Systems India Private Limited,

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How you take care of a motor from over loading and what are the different overloading ratings of different motors?

4 Answers  

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What happened when we give 2 phase supply to a 1 phase equimpent. It's effect on equipment's efficiency and life?

5 Answers  

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What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side

0 Answers   CEB,

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We have energy meter of ct ratio 200/5amp and installed cut having ct ratio 100/5 amp what is final MF?

2 Answers  

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What is the rating of your capacitor bank at your company.

36 Answers   Ajnara Group, Amara Raja, Amol Electricals, Apollo, ATC, Bhagiradha Chemicals & Industries, Bharat, CBRE, Cisco, Government, JLL, MEIL, Reliance, Sterling, TNEB Tamil Nadu Electricity Board, Torrent Pharma, Victory,

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What is a LBB protection and why it is used?

2 Answers   Gridco,

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