What is meant by rotor?

0 Answers  

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what is ICU and ICS in breaker ratings

1 Answers   QAFCO,

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can we coorect P.F. OF 320 KVA ALTERNATOR AT LOCAL SITE WITH RATED .8 PF LAGGING.

1 Answers  

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A 3ph load of 10 KW is equal to how many KW of single phase .

1 Answers  

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how long will take to burst/damage for a CT when secondary in open condition? Experienced: During switchgear testing(Primary current injection test) some of the CT are in open condition, but nothing happen's why?

1 Answers  

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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?

0 Answers   Siemens,

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hi friends ,iam working as genset AVR service engineer in electrical field from past 2 yrs throughout india . i plan to shift in some other job without travelling in same field because i con't travel,i dont know what i do for that so please guide me what job is suited for me,how i can serch the job please anybody helpme iam totally confused

0 Answers  

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How the field flux is controlled in DC drive ?

4 Answers   TATA,

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1.dg on load alarm/stop alarm... 2.dg on load. piu alarm alarm kaise chek krte hai

0 Answers   GTL,

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how many types method in earth testing?

3 Answers   ONGC,

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Why the suply frequency in INDIA is 50HZ

2 Answers   HCL,

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What is balance beam relay ?

2 Answers   Roman,

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