what is numerical relay explain its operation

2 Answers   ABB,

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what use marshalling kishock in power transformer?

2 Answers  

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how ups works ? various parts of ups and working principle

0 Answers   Serco,

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WHAT SHOULD BE THE RATING OF generator required to run a pump motor of 45 Kw.

1 Answers   Jauss Polymers,

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when generator of a power plant is not connected to grid , by increasing the mechanical torque speed of rotor increases but when it's connected to load instead of increase in speed current increases , why?

1 Answers  

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how to calculate full load current of transformer & induction moter ?

2 Answers  

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Dear sir,We have a 7.5hp motor,it was running smoothly and suddenly one winding is carring more current then others(r=6.5,y=6.3,b=10)..whts wrong with tis...?

5 Answers   Hindustan Motors,

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What is the principal of motor?

0 Answers  

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IN TWO WATTMETER METHOD WE GOT W1,W2,WE KNOW V.HOW TO FIND Q????????????

7 Answers   APTransco,

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To have variable speeds we use a. Induction motor b. Traction motor c. Shunt motor

1 Answers  

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WHAT IS THE DIFFERENCE BETWEEN GENERAL INVERTER AND SOLOR INVERTER TELL ME PLZ

0 Answers   Epcon,

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my N-P 230 VAC at 3 wires but i haven't any voltages at phase to phase whither my supply is 3 phase, why i haven't received these line to line voltages ?

2 Answers  

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