Answer / a.p.nanjappa

as you are aware, in electrical engineering power
transformers or motor winding are connected in star-
undrounded or grounded,Delta connected.

Earth fault protection may be due to capacitaive
circulating current,flowing through the body of equipment
to ground. In large generator,motor it may be 5-10A
unbalanced current flowing through Neutral to ground, and
also fault current sigle phase to ground,double phase to
ground,or three phase to ground.these are severe
faluts.damages equipment severly.

what happens if a carbon brush is touching the top end of the commutator

2 Answers  

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ANY ONE TELL ME ABOUT generator synchronization panel panel to synchronise 3 gen of 250kva both automatic and manual. 2 gen output vol 415 3ph, 1 gen output vol 400 3ph SEND THE DETAILS DIAGRAM ON THIS EMAIL ADDRESS ayazleo@hotmail.com as soon as possilble best ragrds electrical engineer ayaz mahmood SAUDI TECH

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after syncnhronistion how generator speed controlled by grid

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How can we calculate the cable size??? plz give the formula !!!!!

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Why different Pressure switch used in marine boiler water circulation system

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11KV AND 22KV NETWORK KW CAPACITY IN RING AND RADIAL?

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What is the main uses of VCB & ACB?

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what should be distance between phase to phase in 415v system?

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why we use the fuse in only one wire? althrough in ac current the current flows in both directions. why the neutral wire can be taken half the magnitude of phase wire while same current returns from neutral wire?

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I have a 25kVA three phase transformer on our property. Will this transformer be large enough to run a large home with swimming pool, spa, 2 off full size reverse cycle air conditioners to service a 100 square house (10,000 square feet or 930 square metres)and the general power consumption of this house without upgrading to a 63kVA transformer.

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DIFFERNCE BETWEEN DCS AND PLC? HOW IT WORKS?

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what will happen if instead of neutral we use earth wire as return conductor?if we can use ,then why we are not using in our day to day appliances?please justify the answer

11 Answers   NTPC, ONGC,

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