What is the deffirant between EARTH, GROUND AND NUTRAL

4 Answers  

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in transformer the unit of power is in kva why?

4 Answers   Videocon,

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it is in our knowledge tht right plug of supply of residential suppy system is phase n other is neutral...howevr the battery charger of mobile works in both ways...i mean it is not restricted in only one direction.ny of the holder of charger can hav phase .so y is it not lik tht phase of supply must b connected 2 phase of charger...?

0 Answers   TATA,

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why the excitation is necessary to produce the reactive power

2 Answers  

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We use MCCB not MCB for motor starters because MCCBs has capablity to drawout the motor starting current which is 5-6 times the full load current of motor for 1sec. Then why we use SDF in starter panel means MCC panels. Pls reply if any one knows this answer.

1 Answers  

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Which test will be more severe for VCB?

0 Answers   CPRI, Reliance,

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How to Calculate Stc Rating of an indoor type VCB Panel? What is a full form of STC?

1 Answers   ABB,

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i have flexible wire. size of conductors is 0.190 mm & no.of conductors are 48. then size of wire comes 1.37 sqmm instead of 1.5 sqmm . the what is tolerance for this size.

0 Answers  

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During underground cabling in landscape area what did we cover the cable with to prevent the electric shock & protect the cable?

0 Answers  

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BSNL TTA EXAM QUESTION

0 Answers   BSNL,

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WHY IN AC DRIVES,INPUT PHASE CURRENT SHOW UNBALANCE?

0 Answers   Adhunik,

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why in america the supply frequency is applied as 60 HZ. but in india we use 50 HZ.

1 Answers   Elcom International, HCL, NTPC, OMC,

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