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?307
For 300 MW plant what is the distribution voltage6 4160
in alternator what is use of AVR ? how AVR is operating either AC or DC?1 2544
in alternator how we can give power to rotor ? its power is AC or DC ?5 2011
how can u determine size of the conductor by knowing the voltage level2 2333
What will be the output of t/f supplied with DC sourse?2 1466
what is IP55,IP652 5652
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 1452
please explain me about traction application?2 2623
define differential current and restraining current in relays. how to calculate it by mathematically? post the formulaes.4 17685
why the rating of a transformer in kva not in kw.9 3507
why cu losses called cu losses.5 2927
What is the value of nuetral current in star connected load when DC is supplied to it???1 1280
can you any one give exact mathematical relation between AC current and DC current?
Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.
can we synchronize star system generators with delta system transmission line ? and how ?
(1)WHAT HAPPENS WHEN SUDDENLY LOAD GIVEN TO THE INDUCTION MOTOR ? (2)CAN WE MAKE WOOD AS MAGNET ? (3)WHAT IS THE VALUE OF MAGNETIC FLUX DENSITY IN TRANSFORMER ? (4)WHY WE ARE USING ELECTROMAGNETI NOT ELECTROSTATIC IN MACHINE ?
define displacement & magnitude ?
In motors how many types of cooling systems were used?
what are doing the duall connetion in tree phase 10hp or etc motor with circuit diagram
How i can calculate current of cable according to ares?
at what basis/standard we have to arrive the current density of aluminium/ copper in busbar?
what is the function of choke in the flourcent tube lights and why the colour is in white mostly in flourcent tube lights
1500Ah VRLA battery,if its weight is designed 125kg during maufacturing its weight is reduced to 85kgs,What will be impact on AH capacity,life & economy?
What happen when neutral point connected to core balance current transformer? (Neutral point of an alternator of a 180KVA DG. Neutral point connected to CBCT means enter to the CBCT)
which network topology offers the greatest level of tolerance?
How to setting the volume of RTCC panel AVR (11kv) controller