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sir i am fresher.can you please tell me how can i get certificate of competency as electrical supervisor.
ONGC,
1 2861Can anybody tell me what the breakdown voltage is for air and what it is for transformer oil please?
4 621275kw drive operated motor current fluctuation from(85-130)ampere.current setting in drive is 130amp.sometimes motor trip when current limit cross 130amps.I change the drive. still current fluctuate between 80-130amps but in this time motor not trip,current setting in drive is 130amps.where is the problem?
1 3742If oil and air can withstand a high MeV when used as an insulator in a transformer, what are the values of how high for each material?
1819we have an energy meter in a capacitor bank panel, So should we consider it's readings as energy consumption on daily basis. (when capacitor bank doesn't have any energy losses)
2349If a 3 phase induction motor is in off condition in the conveyor and rotor of the motor keeps moving with the conveyor than the resistance of windings of motor varies. why is it so ??
1967Post New Electrical Engineering Questions
what are inductive and capacitive voltage transformers.what are their applications
what is the soft starter principle? how is connection diagram? what is the procedure for checking the connection?
I have a current transformer with 1 main reading meter with transformer outside the building and a control panel having 5 CT reading meters with black round coils inside the building. I want to know, A) when current pass through the Transformers, will the current be reduced or be the same and after that B) when current pass through the CT meters with black round coils, will the current be reduced or be the same. C) in the above process will the reading of the main meter be same or different, from the total reading of all the 5 CT meters.
What is the lifetime of a Thyristor? Is there a recommended lifetime for thyristors after which they should be replaced?
detailed procedure how we calculate cost for pcc m10 and rcc m20 including centering and labour excluding steel/ iron
Brushes are placed at magnetically neutral axis,when brushes reach that point,the armature conductor gets shorted,but it can be seen that the dc supply is also shorted,wont that get damage? help me plz
can you any one give exact mathematical relation between AC current and DC current?
i have gear oil pump with single phase motor.some time its motor starts running in reverse direction rather than forward direction...whats the reason behind this issue. 1- either capacitor is week? 2- or winding is week?
Cables Construction hi friends, 0.6/1/1.2 kV LV , DC and Control cables are concentric copper conductor what does its means and what is the use of concentric copper conductor,and are this with copper tape shield or copper screening, ? thanks
plz explain the auot-reclosing circuit in electrical engineeing
Define what is power quality meter ?
Refernce currents are to be generated using refernce cueernts how can this be done??
what is alluminium arm in ab conductors
Pl. brief about break-down maintenance of machine tool.
What is the difference between acs 550 & acs 850
