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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 3731how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING) I O (current operating)?
2214why the undervoltage relay's interlock is used in earthswitch closing operation of the 400kV line scheme?
2 5591now a shunt motor is practically a constant speed motor , then how does it meet the increase or decrease in the load ?
1 3441what will happen to the core losses if we perform the open ckt test on high voltage side of a transformer ?
2 4807What will happen if the interpoles in case of a generator have opposite polarities to that behind it in the direction of rotation ?
1 4297if 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.
19801.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 6237Post New Electrical Engineering Questions
Batteries used for electrical energy storage are a. Laclanche cells b. Edison cells c. Lead acid cells d.any of the above
we are small scale industry in production of rice & rice bran. Pls let me know how to take contract demand for our industry.. (for information we have total 600.hp)
What are the specifications for getting approval of Substation?
why we can stote dc? why we cant store ac?
What do you mean by phasors?
why we change the direction of winding in rotor ?how we make the north and south pole?
What is the use of Surge Capacitor in LAVT?
Saving in copper achieved by converting a 2 winding transformer in to an auto transformer is determined by A voltage transformation ratio B load on secondary C quality of core material D size of transformer core
What are IR values and what it should be for coil and for insulator
In India the supply voltage is 230 volt A.C. During the negative half cycle phase becomes neutral and neutral become phase? or what will happen during negative half cycle? how the electrons flow during positive and negative half cycle?
how to select diiferent power transformers of same capacity on no load loss and full load loss by economical point of view.?
what is KA rating and how can we choose switchgears on applications
draw the block diagram of fire alarm?
what is per unit calculation?looking for simple and strong explanation thk u
Hoe do calculate the Cable size for Amps rating ?
