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?324
For 300 MW plant what is the distribution voltage6 4245
in alternator what is use of AVR ? how AVR is operating either AC or DC?1 2608
in alternator how we can give power to rotor ? its power is AC or DC ?5 2048
how can u determine size of the conductor by knowing the voltage level2 2400
What will be the output of t/f supplied with DC sourse?2 1541
what is IP55,IP652 5764
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 1479
please explain me about traction application?2 2682
define differential current and restraining current in relays. how to calculate it by mathematically? post the formulaes.4 18684
why the rating of a transformer in kva not in kw.9 3575
why cu losses called cu losses.5 3010
What is the value of nuetral current in star connected load when DC is supplied to it???1 1331
how to calculate the distance relay faulty zone?pls explain?
what is meant by IGBT how they differ from tyristor ?
i have a 1500kVA transformer what is the kWH meter i need to use?
Hi all I had applied for the RRB test in the ELECRICAL category. I would be pleased if any of you can sent me previous year question papers. Please forward the question papers to firstname.lastname@example.org Thanks and regards Varsha
Describe Non I.S. Earth System and why is it used?
EXPLAIN THE WORKING OF SERIES REACTOR IN HT CAPACITOR BANKS (FOR VOLTAGES & CURRENTS)
Can any one know what are the symbols at the down (below) the analog ammeter??? there are 4 symbols which are they ?????
we have a 2.5hp Starite electric motor water pump,the elec motor burned out,we need to replace starting capacitor(old capacitor specs erased),what microfarad rating capacitor do we need? 110-125V
why we use four type of phase angle difference between pimary & secondry winding of a transformer & where we use them?
difference between main metering kiosk and check metering kiosk
how to calculate mf when meter and cTPT detail are given
why can we use cosine wave instead of sine in ac supply as both have same rms vale and ripple factor
what are safety measures in /control in diesal engine/ explain them?
Difference between HRG and NGR. Are they both the same thing
What is the size of a 60 watt and 80 watt tubelight?