Answer / hitesh

when Dg set is on, reactive power needed in system is
controlled by the avr system.
when we connect external capaitors then the system will run
on leading power factor hence also reducing active power
supply of alternator.

Answer / arvind kumar

DG sets are used to supply local loads and as per designing
of DG the power factor is consider 0.8, hence in this case
capacitor bank may not required.

Answer / i.m.sayad.

In an AC circuit capacitors are used to improve PF,and in
single phase motor for phase displacement,it charges and
discharges continuously till it is connected in the line,so
it draw some current.DG are designed for certain load,it
generate desired load current.If AC Capacitors connects in
DG supply,DG could not fulfill your connected load
requirement.

What is effect on in zone and out zone fault if CT chosen for phase side is Vk/2<5mA and Neutral side is Vk/2<15mA on REF protection of Transformer

0 Answers   ABB,

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which inert gas is most apt to be used in a fluorescent lamp?? why ??

1 Answers  

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why slipring motor , at full speed run as squirrel cage motor?

1 Answers  

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what is the use of static frequency converter and static excitation equipment? and where it is employed? for what?

0 Answers   Toshiba,

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WHY POLARITY TEST OF CT IS VERY IMPORTANT IN SWITCHGEAR

3 Answers   Birla, Reliance,

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it is clear that volts equal to the current as per ohms law. is it appliable to the AC power or only for DC. if it is appliacable to AC in transformers when voltage increases the voltage decreases ????? why??????????????

13 Answers   Bhel,

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what is the contact resistance of sf6 circuit breaker??

2 Answers  

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How DC to AC convert

2 Answers   Access,

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when is the Ohms law is applicable?

11 Answers   ABB,

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A 50Hz,4-pole,3-phase,star-connected synchronous motor has a synchronous reactance of 12ohmsper phase and negligible armature resistances.the excitation is such as to give an open-circuit voltage of 13.2kilovolt.the motor is connected to 115kilovolt, 50hertz supplying. what maximum load can be the motor torque,line current and power factor?

0 Answers  

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I have installed capacitor bank at secondary transformer. cos phi is increase. but on load (far from transormer), it still poor. Can anybody explain it??

6 Answers  

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How to calculate the slip ring induction motor rotor current and voltage.

1 Answers   Bhel,

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