Answer / vinoth

3P used for residual protection, to protect against fault occur between any phase to ground(or)neutral ...

if the transformer at full load have a iron loss =900w and copper loss = 1600w . what percent of the load will the transformer has a maximum efficiency?

3 Answers  

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what is the difference between ups & inverter

4 Answers   Cushman Wakefield, Dana Group,

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Which type of starter to used which type o motor

0 Answers   Crew pvt ltd,

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A 6.6 KV motor breaker is try to Drack OUT by me while the motor running. What will Happened? a, will Trip. b,Drack Out lever will not access c, will get shock d, noting will happened

4 Answers  

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how unidirectional torque is produced in DC motor?

0 Answers  

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what is p.s impedance measurement test in earthing transformer?

0 Answers   Greenko,

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what is difference b/w CFL and Ordinary lamps? which one is useful for power saving?

5 Answers  

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how can we calculate ct ratings ?its any formula ?

3 Answers  

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what was the function of the auxillary relay?

3 Answers  

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Two electronic energy meters are connected to seperate phase wires, but connected to a looped neutral. Are these going to function correctly?

8 Answers   DRDO,

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What are the types of windings according to the construction?

0 Answers  

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what is XLPE cable?

2 Answers   Essar,

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