Answer Posted / sakthipriya m

Transfomer rating -
KVA rating of the transformer
Voltage rating
Current rating

Is it possible to implement Restricted Earth Fault protection for a transformer without neutral CT?

3382

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what is High resistance grounding and whatis the criteria for the selection of High resistance grounding

1722

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List the advantages of star-delta starter with induction motor?

615

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Brief me about maintenance planning & sheduling of machine tool.

1709

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what is mean by parallel operation of permanent magnet generators

1475

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sir vizag steel ka junior trainee ka paper kitne number ka ayega

1771

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DIFFERENCE BETWEEN NORMAL TRAFO AND THRISTER TRAFO?

2044

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A cylindrical wire is compressed in length by 10%. The percentage decrease in the resistance will be?????

1755

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how to increase senstivity of ct

1928

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We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?

1669

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WHAT IS THE WINDING PROCEDURE OF ELECTRICAL MOTOR

3531

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how to get bearing & winding temperature of an induction motor?

1464

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how external lighting design? please give examples?

1427

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What will be electrical cost per sqft for IT building (basebuild and fitout)and for residential township?

1459

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Maintenance of transformer???

1808

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