why fault current time duration is calculated for 1 minutes?

1 Answers   Rockfort Engineering,

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method to check earthing

5 Answers   ECC,

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If we have 630kva step down transformer to operation 3 phase motor 150 kva which size of cable is used? at circuit breaker to 3 phase motor or to electrical board

1 Answers  

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my UPS is 600VA with 0.6 p.f and i use it for my computer which has 450W power supply unit, a monitor of 633nW and speakers. Can any one explain this.. because the output of UPS should be 360W (<450W)

2 Answers  

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when we put inducter in neuteral grounding of genrator.

3 Answers  

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what is RR number Abbreviation energy meter

2 Answers   Trimax,

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Is it required to lay 2 runs of GI wires along with armoured cables from one power DB Machines of higher rating?

0 Answers  

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what is the maximum demand how it is defined

1 Answers  

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Which are resistive loads & which one are inductive loads : Refrigerator, Split air conditioner, ceiling fans, well pump, fluoresecent bulbs, T.V, CRT Monitors, Adsl Routers, C.P.U, Printers, Deep Freezers, Speakers, DVD Players, Microwave oven etc. ? Output Power for these Appliances Would be same like this : P = V * A * P.F Or would be changed ? thanks

0 Answers  

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Why do we twist copper to make cable?

3 Answers   Bhel, Integrated, MR Cables,

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State the difference between Three winding transformers and Two winding transformers ? where its used?

8 Answers  

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The MCB circuit breaker have a voltage rating of 440VAC it's possible to supply a voltage of 480Vac

1 Answers  

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