Answer / achal

Transmission Line is a bare conductor while cable on the other hand has layers of insulation around the conductor.
To cross a Water channel we can use Cable but considering the "Cost" of Cable, Transmission lines are cheaper. Another reason for it is fault finding is easier in over head line than in cable.

when current lags behind voltage how does it affect the circuit.In other words what is the significance of lagging current?

3 Answers  

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what happens when current(ac or dc)flowing through a boucket of water?please describe it.

3 Answers  

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How do i perform grounding of star point of Genset (400V) for making connection with step up transformer of DELTA-DELTA (400V to 20KV) ? while Genset itself has its own neutral and grounding bus bar inside genset breaker box whereas we have another neutral and grounding busbar in synchronizing panel next to genset at maximum distance of 6meter, would someone pls advice if we can only perform neutral grounding in synchronizing panel or should we ground neutral on both places inside genset breaker box and synchronizing panel.

0 Answers   Allied Group,

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why trasformer rated in kva why should have to maintain pf in our site 0.9

3 Answers   Dalkia,

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Why lose 1 phase voltage in 33kv to 415v stepdown transformer

0 Answers  

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how to find 5 kilo meter long under ground 33 kv cable fault location if IR VALUE shows 0.05 M ohm @5000 volt.and cable fault locator shows some time fault distance 3 kilo meter ,3.7 kilo meter and some time 1 kilo meter? now how to find the fault location that where is leakage. note--it is tested with 5000 kv megger and insulation resistance is 0.05 M ohm. and some time 0.03 M ohm comes.

0 Answers   OPS,

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What is UJT PNP, NPN transistor & working principles?

1 Answers   TATA,

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What is dc current source?

0 Answers  

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if a motor has 1500rpm then what will its HP?

3 Answers   Willdale,

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why diesel tank is earthed

1 Answers   ABB, NTPC,

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If a generator of generating station produces 100MW rated output then what will be the rating of the step-up transformer connected to it?

5 Answers  

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which of the folowing has negative temperature coefficient of resistance? a. mercury b. copper c. lead d. carbon

2 Answers  

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