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In a 11000/440 V transformer, when any one phase of 11 KV supply fails (ie., single phasing), what happens to the secondary voltage and why?
3 20666Why HT motor of 3.3 kw or 6.6 KV, one side foundation ( mostly non drive end ) keep insulated from ground ?
2 47021KVA transformer of different frequencies of 50hz,100hz,500hz&1000hz. which one of these transformer has big size? Give reason
16 38529what is the difference in inductance and resistance.both oppose the flow of current but how.resistance having + ve power in both cycle while inductance having both power.
5 18232From, which load current range ( upper - lower limit current)can Air circuit breaker used for in electrical circuit.
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4 7832Post New Electrical Engineering Questions
How to select a transformer group to connect a 0,433 KV generation with 33 KV grid in bi directional flow of current
why can we use cosine wave instead of sine in ac supply as both have same rms vale and ripple factor
7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?
What will be the current if the resistance total in a series circuit doubles?
I need bhel previous year quetion papers for electrical engineering department.I searched but i could not find out
What is stepper motor?
HOW TO SET THE EARTH FAULT SETTINGS IN ACB????????????
what do you mean by every IC 74 first digit.why are you using this no.why not using another no.
i m electrical diploma holder i want to do plc $ Scada some body tell me which insitute is best for me near chandigarh
explanation of mesh bus bars
Electromagnetic torque developed by the motor is compared to shaft torque. A less B same C depends on motor design D more
Please provided formula for calculate the cable size from step up transformer to M.V panel, run overhead aluminum cables, total load is 5mega watt, total length 900 feet.
Swg formulae
I need the recommended size for a 3 phase transformer at 13.8 KV Primary and connected loads of 3000 kVA at 4200 volts and 2375 kVA @ 480 volts AC.
Use of switch mode power converter in real-time basis?
