what is the purpose finding power factor?

3 Answers  

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WHAT IS B & C CLASS SURGE PROTECTION AND WHAT IS DIFFERENCE BETWEEN B & c CLASS SP

2 Answers   Bharti,

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how can motor both beasrings insulation resistance can be check?

0 Answers   GE,

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At the starting of dc motor and syn.motor and induction motor high current flowing through the winding. Due to this the windings burnt out. To avoid this different types of starters are used. But incase of transformer what Will be used (At starting no emf is induced in the primary winding)?

0 Answers  

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What is meant by rotor?

0 Answers  

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Determine the minimum cable size for a 28A single phase final sub circuit originating from the distribution board supplied by three phase submain. The route length of the final sub circuit is 54 m. Assume 1% voltage drop in the consumer's mains. Submain specification: Cable: 50mm2 4 core V75 copper; Route length 42m; Maximum demand 135A per phase

1 Answers  

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How to desaturate a saturated CT of PS Class?

4 Answers   Electrical,

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Name the instruments which run on DC?

2 Answers  

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ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]

0 Answers  

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How we Use DC Power in Transformers? is it possible ?

6 Answers  

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What are marginally stable systems?

0 Answers  

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what is the higest transmission voltage and generated voltage in india

14 Answers  

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