What is different bewteen low or high impedance busbar protection scheme

0 Answers  

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I am using submission of two ct in one and half scheme for 67/67N protection. Both CTs star point is grounded separately near ct box.Will two point ground give wrong tripping to 67/67N during fault or no matter.

0 Answers   NCC,

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can SMPS work in DC supply ?

10 Answers   HCL, IBM, Reliance,

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Direction of flow of active power and reactive power with logic?

0 Answers  

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True or false question. 1.The fuse provide phase and neutral 2.power loss in electrical circuit can take place in (resistance or inductance or capacitance). 3.two phase system each phase has separated by a phase difference of (90 or 180 or 270 or 45). 4.3 phase balanced star connected load neutral current shall be (line current or phase current or zero or unity)

0 Answers  

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will a transformer work when pulsating dc id applied to its primary?? what will be the result??

2 Answers   cemp,

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how to can we synchronize different capacity of DG sets.60kva& 250kva?

2 Answers   Power Plant,

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In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.

0 Answers  

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if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .

0 Answers   BSNL,

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tell me about xlpe cable?

1 Answers   IOCL,

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what is the principle of motor

6 Answers  

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How the annunciator works ? How to do its wiring

0 Answers   Ford, MSEB,

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