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What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side
CEB,
1418The efficiency of a 100kva transformer is 0.98 at full load as well as half load , for this transformer what is the Copper loss at full load ?
2293explain which quantities change in the starting and the and the running condition in induction motor
1392what is a composite error in current transformers, why occurs & in which it will occur i.e, either metering ct/ protection ct
1800Why open circuit test of transformers is conducted at rated voltage??Why not any other voltage??
1627Post New Electrical Engineering Questions
Explain bypass capacitor?
any one guide me to reduce the power factor of diesel Generator from 0.97 Leg to 0.8 Leg.with out any change in my load.
why need to be maintain power factor for industrial customer?
How to discuss the phase shift of transformer considering open delta?
I need the list of Universities who have summer intake for BS degree in Electrical Engineering.?
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what is the advantages og idmt relay over magnetic relay??
how to find ratio of CT & PT in 66/11kv 12 mva supply system ? explain with calculation.
What are the disadvantages of thermal power plant?
what are the parameters plays a major role in Potential transformer Burden calculation??
Mention the disadvantages of low power factor?
WTA used cb?
An ISP is granted a block of addresses starting with 150.80.0.0/16. The ISP wants to distribute these blocks to 2600 customers as follows. a) 200 medium size businesses; each needs 16 addresses b) 400 small businesses; each needs 8 addresses c) 2000 households; each needs 4 addresses Design the subblocks and give the slash notation for each subblock. Find out how many addresses are still available after these allocations.
What are the conditions to be satisfied for parallel operation of dc generators?
How energy is generated in hydroelectric power plant?
