Answer Posted / raghu
In a transmission line the current in the conductor does not
pass through the core of the conductor(not more)& passes
through the outer layer of the conductor.due to this the
surrounding air get ionize making hissing sound
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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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