Answer / k.prakashchandra

rho x L /A = R , R x I = voltage drop . Choose the maximum allowable voltage drop and arrive at A

WHY EXCITER PHASE SEQUENCE ARE OPPOSITE THAN STATOR SUPPLY PHASE SEQUENCE IN SYNCHRONOUS MOTOR >

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1) Explain why we don't link the two earthing system ht and mv on a pole mounted transformer sub-station.

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why the generator efficiency is greator than motor?

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Stator of 3-phase IM has 3 slots per pole per phase, calculate number of stator pole pairs. A 1 B 6 C 2 D 3

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Anyone who can recommend an equivalent to Envirotemp FR3 of Cooper?

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How to calculate voltage drop in copper and aluminium cable? I have laid 240Sq.mm Aluminium cable for the length of 600 Mtrs in 1 Mtrs underground. Normal load is 150A. Transformer is 630KVA, 6.KV/433V. But, I am getting only 395 Volts when load. How to calculate voltage drop and what is the permissible voltge drop for this circuit?

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Why we are putting off the APFC(automatic power factor control) panel while the generator is running?

4 Answers   National Steel,

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Which of the following statements is incorrect?(a) 1N = 1 kgm/s2(b) 1V = 1 J/C(c) 30mA = 0.03A(d) 1 J = 1N/m

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why we use to transmit the power in three phases intead of single phase ?

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why current increases when voltage decreases in ac system

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stand by earth fault protection (51G) for transformer rating 2000 kVA,Dyn11,33/0.400 V. LV NCT ratio and necessary resistor and metrosil values how to calculate

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what happen when ac motor is connected with dc current

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