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06000EE369122001

Discuss various resistance potential dividers and compare their performance of
measurement of impulse voltages.
Explain with a circuit, the generation of rectangular current pulse of high
magnitude.
Explain with neat diagram the principle of operation of an Electrostatic
Voltmeter.
PART D

Answer any two full questions, each carries 10 marks.

Derive the equation for loss tangent. Use relevant phasor diagrams

Explain the high voltage Schering —bridge for the loss tangent and capacitance
measurement of insulators or bushing.

Write a note on the classification of High voltage laboratory.

What are the criteria used in selecting the ratings of the testing equipment for
h.v. labs?

Explain partial discharge measurement with neat circuit

What are the precautions that are to be taken while grounding an impulse

generator?

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