How to run 1ph motor(230 VOLTS its full load amps is 4.5 ampa))with 480 volts main(we didn hav neutral)Thn we go for step down transformer.Our load 10 amps,so we conisder this amps in primary are secondary side
1 3730how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING) I O (current operating)?
2207why the undervoltage relay's interlock is used in earthswitch closing operation of the 400kV line scheme?
2 5588now a shunt motor is practically a constant speed motor , then how does it meet the increase or decrease in the load ?
1 3429what will happen to the core losses if we perform the open ckt test on high voltage side of a transformer ?
2 4799What will happen if the interpoles in case of a generator have opposite polarities to that behind it in the direction of rotation ?
1 4291if the armature current in a dc generator is ac ( sinusoidal ) why doesnt the sjhape af armature mmf a sinusoidal (ni) ? armature mmf in case of a dc machine is triangular.
19701.what is difference between line,neutral and earth 2.IF single phase voltage is 230v ac and what should be the voltage between line to neutral,neutral to earth and earth to line
1 6232Post New Electrical Engineering Questions
How we calculate the Multiplying Factor of Kwh meter for 3 phase alternator.
How to calculate VCB rating for 33KV ,25 MW Power line?
I'm generating a pulse of 3V with frequency 80Hz (12.5ms time period) and pulse duration 0.125ms and feeding it to a transformer since i want the pulse to get amplified around 60V. At the output amplification s happening but the pulse is changed to a spike, can you tell me what could be the reason? (an ordinary transformer 220V-12V stepdown transformer is reverse connected ie. now it is 12V-220V stepup and voltage amplification happens)
what is thermal resistance of PVC Cable.
how to find number of run cable laying[LT side] for transformer & alternator secondary side? [above condition for getting output power transformer to main panel side] give the example.
can we use ZNyn11 transformer instead of Dyn11 transformer in distribution for effectively eliminating harmonics from the industrial loads.
Why induction motor is widely used in industry
what is the difference between STAR and DELTA connection and application wise how it can be utilizedd
WHAT DO YOU MEAN THE DIFFERENT TYPE OF CURVES OF RELAY LIKE STANDARD INVERSE, VARY INVERSE, NORMAL INVERSE, LONG INVERSE ETC....
What should be the amps for a MV fuses for transformer 630kVA 20(10)/0.4 kV
how to control dc motor?
How the circuit breaker is selected for Induction motor of 100 kW, 415 volt, 0.85 power factor, 0.95 efficiency ?
what is the difference between changer, converter and transformer?
why is control bus bi-directional?
What are the disadvantages of autotransformer?