Answer / kj

Most installations are have a PF between 0.8 and Unity
lagging. By rating the DG to 0.8 PF it can operate in most
situations without problems.

In Dyn11 power transformer if any one of the 3 phases connected to earth in star connected side then please explain effect of the current flow in delta connected side of transformer.(In this case if one phase is shorted to ground in star connected side then we observe the current flow in two phases only not three phases in delta connected primary side. Please explain why it is so?)

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what is the preventing maintenance of transformer

1 Answers  

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why always out of the 3 phase(RYB) of supply, in Y phase w.r.t the voltage is higher? on R & B phase the voltage will be lower as compared to Y phase?

1 Answers  

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how do find power factor in practically and what it means?

3 Answers  

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electrical machines

3 Answers  

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THE ROTIO OF VOLTAGE AND CURRENT IN A CLOSED CIRCUIT

12 Answers   APGenco, Constant, Lanco,

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if we have 380 KVA DG. how to calculate Power Factor. With detailed formula

1 Answers  

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What is the purpose of stablization resistor in high impedance bus bar protection

0 Answers   Jindal,

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what happens when a power transformer neutral earthing broken???

11 Answers   MacLellan,

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WHAT ARE THE DATAS REQUIRED FOR PROTECTION AND METERING AND CONTROL AND LOGIC PREPARATION,HOW TO STUDY THE PROTECTION AND METERING?

0 Answers   L&T,

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WE know that for Inductor X=2pifL,In DC f=0,then X=0 so,V=IX=0;But In the DC excitation of rotor of AC generator,DC motor field coil which coils are inductor so why does not applying DC voltage short the rotor coil of AC generator and field coil of motor?If it would then DC source might be damaged but it is not happened. Why does the strand conductor of Electrical power transmission line make twist?

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Which capacitor is used in ceiling fans ?

1 Answers  

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