Answer / srinualn117

purpose of checking IR value is to find,the insulation
resistance between the phases of winding and with
respective to body also.
Minimum IR value required is for 2megaohms/1KV

Answer / deena

it is check for insulation of windiig between the ground

Answer / prasang

IR is tested to check the soundness of insulation resistance & freedom from earth leakage faults between phase to phase, phase to neutral, phase to earth and earth to neutral...

Answer / bsoni

to chake the winding insulaions & likage of winding

Answer / udaya17

is it to check open or closing circuit of the motor windings

what is PWM in IGBT and how it works for drive.?

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Define magnetic centre in a motor?

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What will be the change in its efficiency and other parameters of a ONAN transformer if it changed to ONAF transformer ?

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