Answer / vijay

check mpcb rating, it may be under rated else take megger test

Answer / kiran

what will be the motor rating and weather it is connected to load or no loaded...?
if there is no load then check for motor,
if it is loaded then check for mpcb and also check for mpcb is good or bad..then replace new mpcb of proper rating..

Answer / kiran

use megger and test for shorted ground and chech resistance of the winding.

how to calculate percentage impedence at 75 deg C at normal tap

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What is Avg. Power Consumption of 2 TR Split A/C???How v can calc. this???

1 Answers   Emerson,

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how can we know the size of cable cross-section from current rating ?

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in three phase it represented by R-Y-B.what is full form of R-Y-B.

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can any one help me out by posting something related to rvnl interview for site engineer electrical.? what is the procedure? what kinda question they ask us? how long the interview goes? and any tips? and any thing you want to share?

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5 Answers   Bhel,

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The electromagnetic torque developed is proportional to what in a D.C series motor?

0 Answers   HPCL,

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Q. calculate the value of the resistor to be connected in series with a 100W; 230V lamp so that the wattage of the lamp is reduced to 35W

8 Answers  

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