| Other Electrical Engineering Interview Questions |
|| Asked @
|how to calculate the input current in singel phase and
3phase supply to 5kva ups
|why we use only sine wave in ac why we do not use other wave
|What are the layers of protection over armoured cables?
|we have consol make 3 phase servo stabilizer for cnc m/c.
while installing the earth neutral voltage is 1.7 volts at
stbilizer off condition and when stabilizer get on en
voltage reaches 4.8 volts (new earthing is done and neutral
is helthy condition all phase to neutral volts 440,442,441
v)why this happen.solution for cause.
|if a 3phase 100kva distribution transformer , 400 v,50
hz, 4-wire system is loaded at 160 k.w mostly 1-phase
Lighting & Airconditioning split a.c load what will be the
net effect on the power system in terms of voltage,
powerfactor, current , efficiency of xformer
|what is the RMU and RMU system in sub-station(11kv,66kv.....)
|why shunt capacitor is connected
|What is EPBX????
|My ups output shows 230 v between phase and neutral,but show
zero between phase and earth.Is the system/installation is
correct.If not what will be the possible reasons
|How the Transformer oil testing is done & Why oil dielectric
goes LOW & what is solution for that ??
|why phase & neutral is use in tv? why earthing not use ?
|Transformer TTR test procedure
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