What is the difference between short circuit and overload
currents?
Answer Posted / sennapparajan
shart circuit current-if happens only pahase to pahse short
or phase to earth.
over laod current- it happens only when machainary or
motors take current beyond the ratings.
Is This Answer Correct ? | 34 Yes | 15 No |
Post New Answer View All Answers
Why open circuit test of transformers is conducted at rated voltage??Why not any other voltage??
why does the magnetic balance tests at transformer?
How do we calculate over and under frequency tolerance from generator data?
If a surge divertor is required to be protected by 32 amp C Curve Circuit breaker does this limit the amount of protection from surges that you will acheive
During Testing of Maintenance Free Earthing, How deep should be the Spikes of Earth Test Meter should be inserted in the soil(one spike is 15 Meter & Other spike is 30 Mtrs away from the Main Earth Electrode. Because, recently, we observed that when spike is inserted 3-4 Inch in the earth- results are better, If spike is inserted 1 feet deep than results are increasing.
what is a pulse transformer? how rise time of pulse changes when ever the voltage changes?
critically criticize the application of ring main unit in power system
A 50Hz,4-pole,3-phase,star-connected synchronous motor has a synchronous reactance of 12ohmsper phase and negligible armature resistances.the excitation is such as to give an open-circuit voltage of 13.2kilovolt.the motor is connected to 115kilovolt, 50hertz supplying. what maximum load can be the motor torque,line current and power factor?
how will calculate the safe starting current of 3-phase squirrel cage induction motor?
why current is constant on d.c?
3- What is the target from Zero Impedance, Single Phase Imp., S/C Imp. and magnetic balance tests?
Why HT 11 KV Slipring Motors are connected in star ?
what is LSR?
how to find motors H.P. whout any rating? (only give you a motor and multimeter)
1 “earthing” for bonding of equipment and circuits to common plant earth electrode potential, 2 “protective earthing (PE)” when this bonding is required for personal safety provisions 3 “grounding” for interference suppressing bonding of screens, sys-tems with ground level 4. low-impedance earthing ? 5.primary earthing system and secondary earthing system what is that? 6.earthing electrode or mesh net earthing electrode ? very confusing , simple but very informative help required ? i will be very very thankful to you guys.