Answer / pawan

by change the connection of the trasformer

Answer / k.m.mustafa

it can if we use secondary
winding as primary windings
it will work as step up
transformer.

If not maintained 3 phase clearance,what happened ?

2 Answers  

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What is mean by INRUSH CURRENT?

8 Answers  

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What is different bewteen low or high impedance busbar protection scheme

0 Answers  

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want happens when a dc is given to a commutator

2 Answers  

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how much watts the computer will takes

2 Answers  

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how to find impedance , mutual indatnce in transmission lines

0 Answers   NTPC,

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what is KA rating and how can we choose switchgears on applications

0 Answers  

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All the voltage drops and the source voltage added together in a series circuit is equal to

2 Answers  

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How can i calculate knee point voltage of 800/5A Current transformer?please explain me with suitable calculation?

2 Answers  

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difference between ac and dc generators

4 Answers  

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basic princple of induction and synchronous motor

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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