Answer / deepak ocl

yes

Answer / kj

Alternators can work on slight leading power factor. If the
leading power factor is too great the AVR will lose control
of the voltage and the voltage will rise above the normal
voltage. The further the PF is from unity the higher the
voltage.

what is phase angle ? and also tells me why my phase-phase voltages are 390 rather then my single phase voltages are 221 and 223 respectivly?

2 Answers  

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How do we measure earth fault current in Generator Transformer(20/420kv),Station Transformer(20/11 kv) and Unit Transformers(20/11kv) for our plant system, since these don't have any Neutral earth Fault relay connected to their Neutral Earth? But for Unit Service transformers(11/.433 Kv) we have an Earth Fault Relay connected to its neutral earth.Why is such so?

1 Answers   NTPC,

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A 3 phase motor operating off 415V system is developing 20Kw at an efficiency of 0.77 and power factor of 0.73. determine:- a)the line current. b)the phase current if winding are delta connected. c)the phase voltage if winding are star connected.

1 Answers  

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why the autotransformer burnt while stating the pumpmotor?, In starter and motor there was no abnormality.

4 Answers  

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What is oil temprature with A/T contacts in Transformer ?

1 Answers  

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What is meant by Active and reactive power?

23 Answers   College School Exams Tests, Schneider, Torrent Power,

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What are protection of power transformer?

1 Answers  

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How stabilizer works??

0 Answers  

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what is RTD? what is THERMOCOUPLE? What is difference between it?

2 Answers   Bhel,

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How many homes can a 500kva transformer supply in S.A

1 Answers  

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expansion of rccb

3 Answers  

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if i have one capacitor=80 micro farad which correct the unity power factor,but i want to make capacitor bank who correct the power factor.so,how to split this capacitance value?

2 Answers  

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