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In transformers Which type of connection is preferred for harmonics to be minimum. primary : secondary star without neutral:open delta star with neutral :open delta star without neutral: delta star with neutral : delta explain why
1 5135Why one can experience electrical Shock due to Voltage or Current?? or both voltage or current??
11 15212Which pump set is more suitable and economical for liftingwater from 300Mtr borewell? A. Compressor Pump B. Submersible Pump C. Jet Pumps D. 25HP Centrifugal Pump Q. from PSC Test 22-11-2008 Meter reader
8 24425Post New Electrical Engineering Questions
What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
why actual valve timing diagram is different than ideal valve timing digram of a 4 stroke engine?
A commercial Building is designed with 14th floor levels with indoor substation of three phase transformer with rated capacity of 1000 Kva.The transformer delivered 65% of its rated capacity at 0.67 power factor lagging.Because of low power factor, the power customer was penalized and certain cost was charged accordingly based on every point percentage lower than 85%.This situation may repeatedly happen on the succeding energy bills of power customer.The power customer is desired to improve its historical power factor of 0.67 lagging and no further penalty be impose by the local power company on the next bill. Q: Identify the appropriate solution you want to offer to Client?.Justify SCIENTIFICALLY and MATHEMATICALLY the principles behind the solution.
EXPLAIN THE TERMS "INTEREST AND DEPRECIATION" AS APPLIED TO ECONOMICS OF POWER GENERATION.
what is the relation between knowing of the distance between power transformer and the capacitor feeder in case of parallel operation
Please explain me abt PQ diagaram in the power sector.
tell me some type of questions throught which i can prepare for exam and do my best
Can you explain about pole discrepancy scheme
HOW WE CHOOSE EARTH'S POTENTIAL AS ZERO V?
what is the voltage between earth to neutral in lift.
1. What is maximum permissible distance between smoke detectors ? 2. How do we decide number of smoke detectors required in a large office, warehouse, hall etc ? 3. What should be maximum height of smoke detectors ? 4. Where do we use heat detector, optical smoke detector, temperature sensitive detector ?
mostly the questions were from machines... d.c. machines, transformer, synchronous and induction all theory paper........ few from power system... but the level of paper was easy.....
What is a difference between indoor transformer and outdoor transformer of same rating
what things to be considered when designing UPS
