Answer / pillay

There is no formula.A carefully collected sample oil is
tested in a specially designed tester.

Answer / mgalalkhedr

According to the insulation class for the transformer
winding you should select the equevlent oil. avarage
between 30 to 60 KV

what is inrush curent.

5 Answers   BARC,

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WHY AREWE USING THE 3 1/2 CORE CABLES IN POWER TRANSMISSION

1 Answers   Phoenix Technologies,

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11. As per the theory current doesn’t flows in Neutral, but practically it is not applicable, explain why? 12. How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test? 13. Why the transmission lines are in 11kV, 22kV, 33kv, and why not 10kV, 20kV, 30kV? 14. Why do we generate 3 Phase AC Supply? It is possible to generate 4 Phase and 5 Phase explain it? 15. Explain why the Voltage drop will happen in 3 Phase line? 16. What is the equipment used to control the generator output? 17. What are the factors to be considered during the Synchronization? 18. What should be value of Circuit breaker operating time and tripping time? 19. Why the CT Secondary is rated as 5A generally? 20. At which time Synchronous generator act as a Synchronous Condenser?

1 Answers  

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What is given by the definition in BIL IMP/PF = 950/395 kV. This was found in a name plate of a power transformer.

0 Answers   AES,

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in VFD when freq is reduce the voltage will reduceor not if it will reduced upto ...

8 Answers  

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How to increase the backup of three phase ups?

1 Answers  

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we can run 2phase as 3phase .what will be the differnce with respect to phase angle, power, current between the two modes

0 Answers  

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how to calculate maximum current

0 Answers   Almeer Technical Services,

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WHAT MEANT BY SEVICE FOCTOR?

2 Answers  

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how to calculate the slowness and fastness of energy meter if we have different kw load for example (0.746 kw and meter rev constant 400 and we calculate the 2 rev in 30 sec) please explain the formula thanks

1 Answers   WAPDA Water and Power Development Authority,

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what is RTD? what is THERMOCOUPLE? What is difference between it?

2 Answers   Bhel,

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Difference between transmission line and cable?when ever a large water channel has to crossed it is easier to use cable then transmission line why?

1 Answers  

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