Answer / benedict

In PHASE SEGREGATED Distribution Boards Outgoings are three compartments.so phase are difference and Neutral and earth are looping.In outgoings are going to loads all are separated.suppose neutral and earth wires are short the mcb was tripped.so checking is the main problem.

Why the brushes used in dc machines are made of carbon not from other metal?

2 Answers  

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when the size of the cable used for the ht voltage is 300sqmm then what is the size of the conductor of each phase

2 Answers  

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WHAT IS LIGHTNING,HOW TO CALCULATE LIGHTNING DESIGN CALCULATION?

2 Answers   L&T,

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how to calculate diesel consumption of a D.G.Set?

4 Answers  

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How to calculate flow of water delivered by pump when pressure & size of pipe line is given

0 Answers   Knight Frank,

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If the supply voltage is same (say 440V) whether a system designed for 60 Hz frequency will work with 50 Hz frequency or not , if so pl. give clarification.

11 Answers   ABB,

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How do you maintain the batteries for generators, what is the daily maintenance of a generator?

2 Answers   Jindal,

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How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?

0 Answers   ABB,

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What is the difference between sensitive earth fault and restricted earth fault in power transformers?

4 Answers  

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Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . y d.c series motor in train.train wheels r driven by D.C shunt motor ,at what voltage,and at what speed. please reply..............

0 Answers  

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How much load with stand the copper cable by sq mm apro..

1 Answers   L&T, Taj Group,

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Define steady state error.

0 Answers  

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