Answer Posted / kaleem

aroluli which voltage we'll use ? line to line to line to line to ground ?? 230 or 400 this formula to calculate 3 phase current ?? p= 1.73 v i cos@

HELLO SIR, IAM PREPARING HPCL EXAMS. SO PLS SEND MATERIAL OF HPCL ELECTRICAL ENG..TO VIJAY_8888@YMAIL.COM

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What is the difference between type1 and type2 relay protection co-ordination for motor feeders

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WHAT IS LOAD CELL

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What is the name of the winding from which the supply is taken for load connections?

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why a tester wont shock while testing the power in house

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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?

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What is an automatic controller?

1181

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what is the difference b/w absolute encoder and incremental encoder?

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what reactive how to maintain

1848

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Do closed loop systems require manual input?

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along with technical test papers

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at what basis/standard we have to arrive the current density of aluminium/ copper in busbar?

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what is the main difference between power devices and signal devices

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State nyquist stability criterion.

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What are the raitings of Mcb,mccb and Acb in detail ??

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