Why the suply frequency in INDIA is 50HZ

5 Answers   HCL,

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why three phase capacitor takes unbalanced current in capacitor bank?

0 Answers   Aggreko,

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what is standard height of an energy meter from ground?

2 Answers  

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AMF (auto mains failure) control for DG sets at home.

1 Answers  

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can any one help me for my ups inter view , list out few basic technical ups question with answer.

1 Answers  

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I do wonder why current is present in neutral wire?i check single phase lead current feeding air conditioner...on its phase its current was 10A while same was 10A in neutral...as we know in neutral voltage is zero so if voltage is zero then how current appears on amp meter? my second observation is (just imagination)when I touch phase wire it give me shock but when i touch neutral nothing happens although as above its carrying current(amps) third but with same logic...as in simple Alternate current sine curve there is + and there is negative peak.means every time phase changing so how come every time same phase and same neutral stand (pardon for english mistakes)

1 Answers  

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what is mean by unity power factor?why are u calling Resistivity load also unity power factor?

2 Answers  

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what is the difference between main meter CT and check meter CT?and what is the difference between main meter PT and check meter PT?

2 Answers   Tesco,

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How o select the electrical fuse?.What are its characteristics.How to select the material od fuse?

0 Answers   BARC,

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The Source internal resitanse Rs , When equal to Load resistance RL, the maximum transfered is of _____ % of input power?

2 Answers  

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What is the diffrence in between Class PS & Class 5P10 for CTs

7 Answers  

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what is the RESTART INHIBIT protection?

1 Answers   Thermax,

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