what is principle in relay testing kit?3 4856
how we can calculate which capacity capacitor bank we have to add for improve pf?3 10821
what is the difference between LT and HT power supply?26 153201
what is zero sequence curr ent ?4 14594
why we cant use AC supply products in DC supply?21 9341
why 3 phase motors are preferable over single phase motors ?4 3199
how to select cable size?4 7284
what is the purpose of starter in tube light?what is it operation .1 3134
1)Why electric shock is feel ?? n in a Electric Train why we didnt feel that ? 2)What is the reason for transformer Noise ?? 3)What is relation b/w Transmission Lines & Communication Lines ? 4)Which material is used for making Transformer oil & How u measure its dielectric strength & Name the test ?14 15411
To check the earth condition (In plug points); the voltage between earth and Neutral is in below 5 volts. Is it correct6 3864
Whats the difference btwn a latch, port,data bus buffer? Do they all not hold data in d flip flops??1155
How to calulate Locked rotor amper(LRA) for compressor type motors?
what is the calculation formula for motor starting torque,running torque, running torque.
I have a relay contact rated at 220v dc which is supplied with a 24vdc from the panel,for it to trip the dampers(24vdc).What if the application of the relay changes so that it should work at its rated 220vdc then will it work at 24vdc supply given or any other consideration needs to be taken .....
we have two motors 1250kW,6.6kV to be coupled on the same shaft ,so please provide assistance for their synchronisation.
What is value of earth resistance required for substation and equipment earthing and what are the reference guidelines
In hydel power plants, L.A's, S.C's are placed inside the control panel boards. what is the purpose? [already the total body was earthed to ground.]
Where I can get the sample question for post of Junior engineer electrical-II For RRB Bhubaneswar.
how hydrogen cooled alternator undergo maintanence ? that is hydrogen when come in contact with air can result into explosions .
Can we put 3 layers of cable tray while installing tray
What is Control & Relay Panel? And Remote Control Center?
i have applied for junior engineer 2 c&w for Guwahati RRB please send me last five year question paper
How a capacitor discharge weld power supply works? what is the use of a pulse transformer?
what is the difference between pvc & fiber glass cables
the problem faced on star or delta winding connection??