How REF protects transformer alone? explain with diagram.

0 Answers  

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The Frequency is measured by _________ bridge ?

3 Answers  

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What is the significance of %Z in case of transformer?

1 Answers  

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What will happen if we introduce negative feedback to a control system that uses a positive feedback?

0 Answers   GE,

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we have one pumping station and 4.6 MW 7 no.s synchronous motors.so there is no required HT capacitor to improve power factor.But we have two no.s of 25 Mva power transformer connect to distribute the power for motors connect with 220 kv line.So i have required the HT capacitor to improve power factor at HT side i mean power transformer bus side.So please suggest how much HT capacitor banks required for same.

1 Answers  

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what do you mean by star connection?

4 Answers   Denver, Satyam,

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where is the need for short circuit test for 3 see is required and why? can you explain in brief with application

0 Answers  

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What will be done if we open the secondary of CT on load??

4 Answers   Engro,

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The cable area of cross section is 185 sq mm. How to convert this to the diameter.

7 Answers   Syscon,

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1-What is the difference between absorption factor and polarization factor in insulation resistance test in transformers? and why we inject until ten minutes to get polarization factor?

1 Answers  

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How much load can give on 1600 kva transformer 11kv/440

5 Answers  

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How Diesel Generator start ?

0 Answers   ITC Infotech, Voltech,

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