Answer / sivakrishna

by adding capacitive and inductive loads ,we can increase kvah rating

what is the MNA in case of d.c. machin? whaty is the importance of it? hoe it affect the brush position?

2 Answers   TATA,

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When induction motor is started,we see all other electrial appliances connected on the same supply are dimmed out for some moment why?

4 Answers  

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what is power factor ? why is it so important?

2 Answers   Telco,

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State the difference between Surge Arrester and Lightning arrester,Both are same or not?

7 Answers  

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how to select a cap,when a fan is required 2.5 micro ferad cap,then how we know about 1 hp motor?

1 Answers  

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Why compensation is necessary in feedback control system?

1 Answers  

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power factor is max for which welding a.arc b.resistance c.gas

2 Answers   Bhel, HCL,

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In batteries after completion of charging which colour gas is emitted from it?

2 Answers   Essar,

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what is direct dischage of power transformer

1 Answers  

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how can we select the type of wire.what factors we have to look on it , do we have some formula to calculate it. please guide me on it

1 Answers  

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Ohm's law applicable for semi-conductors?

4 Answers  

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1.After synchronising the alternator to the grid,how we r delivering power to the grid?if the i/p increases does the speed hence frequency increases? 2.y the power factor is changing when exitation changes?what is the relation with p.f and flux?

4 Answers   BSNL,

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