Answer / k.prakashchandra

Over load relay is set at 110 to 120 % of full load current

How many types of instrument cables are there?

0 Answers  

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which of the following motors is non-self starting?

3 Answers   SS Solutions,

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What is Phasing out test?

1 Answers  

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what is difference between neutral and ground wire?

2 Answers   TCS,

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in three pin plug point, whats the reason that one plug point is bigger in size

4 Answers  

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Air refrigeration cycle works on the

0 Answers   Caterpillar,

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Waht will happened if reactive power increase in the line? waht about active power increase too?

3 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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how to decide the rating of the ct for 1500 kva transformer

1 Answers  

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What do you mean by screen of power cables?

0 Answers  

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what happens if power factor is maintained at 0.9?give me the answer in technicall way rather than telling the penality n all

5 Answers   NCC,

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how to get electrical supervisor competency certificate in gujarat. i did 3 year diploma in electrical

0 Answers  

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