ASTM D 3455 - Standard Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin has been used for Testing Transformer Oils with a product placed in it. Aged Control Oil has a Power Factor of 0.032% at 100°C. Aged Oil with a Test component has a Power Factor of 0.093% at 100°. Is this increase acceptable? If not why? How much increase is acceptable?

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1.what is the reason for transformer and lightning arrester blast in 33kv system

0 Answers   ABB,

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what is the physical phenomenon because of which skin effect occurs ??

6 Answers   Power Grid,

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EXPLAIN THE TRANSFORMER MAINTENANCE?

0 Answers   Enercon, ERT, GEL,

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What is the stander resistance value between the neutral and earth?

10 Answers   Crossdomain, Sepco,

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why ht11kv supply needs discharging during shut down time

1 Answers  

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Dear Sir how much cable size required from 0.75 kw to 50 kw for electric motor or pump

1 Answers  

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why there is a phase shift lies between primary and secondary voltages of a transformer?

7 Answers   Mecon,

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current and voltage equations for a star connected load fed from a delta connected load.

1 Answers  

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Which motor has high starting torque

2 Answers   Greenko,

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Is only insulation the difference between High voltage and Medium voltage cable?

1 Answers  

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What is difference between Over Current & Earth Fault protection?

0 Answers   ABC,

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