why do motors burn out? I understand why adding parallel loads to a power source means more current moves through the circuit, and can destroy circuit elements by overheating. What about when you have a vaccuum cleaner intake flush against a floor, a room fan sitting directly against a wall, or a power drill trying to drill through something too hard?643
For 300 MW plant what is the distribution voltage6 4985
in alternator what is use of AVR ? how AVR is operating either AC or DC?1 3101
in alternator how we can give power to rotor ? its power is AC or DC ?5 2506
how can u determine size of the conductor by knowing the voltage level2 2955
What will be the output of t/f supplied with DC sourse?2 1886
what is IP55,IP652 6297
what do u mean by starting torque? how it should be for a good motor? what is the relation between starting torque and power factor? What is the relation between efficiency and starting torque?2 1879
please explain me about traction application?2 3089
define differential current and restraining current in relays. how to calculate it by mathematically? post the formulaes.4 24571
why the rating of a transformer in kva not in kw.9 4374
why cu losses called cu losses.6 3757
What is the value of nuetral current in star connected load when DC is supplied to it???1 1679
How to calculate no of EARTH PIT? Describe the formula as per IS standard?
why does the magnetic balance tests at transformer?
How can we convert 11 kv to 440 volt without using transformer ?
Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?
WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING
comparision between ACB and VCB
Control wiring of a dol starter for forward and backward
whati s the sludge current in ups
how to do the ductor test?
explain all the classes with example
Will an earth leakage trip be activated if the component or wiring is faulty on low voltage equipment.Example An electrical Cat Scarer placed in the garden and water gets into the wiring.
what is the use of static frequency converter and static excitation equipment? and where it is employed? for what?
Motor,transformers,capacitor tubelight etc....
some basic standard questions on transformer.
How isolater function when installed inelectrical 440V wiring