what is smart grid? why we use it? explain in detals bcoz i want give presentatin from it....

0 Answers  

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Write a note on materials used as a fuse element.

0 Answers   Bhel,

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What are the safety equipments you should use while you are in a hvac switch yard

1 Answers   GPSC Gujarat Public Service Commission,

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What is the difference between Isolator & Load Break Switch?

7 Answers   Infotech,

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In Power transformer oil temperature or winding temperature will be high

3 Answers  

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Differentiate between induced emf and self inductance?

0 Answers  

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What is the different between Insulator & Di-electrict?

2 Answers  

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How do you convert the lt amps on a transformer to the ht amps?

2 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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why power dissipation is due to low frequency?

1 Answers  

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battery dis charge condition long time condtion?

1 Answers  

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I HAVE 2 nO'S OF SYSTEMS, HOW MUCH UPS CAPACITY REQUIRED ALONG WITH 400WATTS ANOTHER LOAD? PLEASE GIVE THE FORMULA?

1 Answers  

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