What is dielectric breakdown strength?

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Description : Define : (i) Dielectric strength (ii) Breakdown voltage

Answer : (i) Dielectric strength: The voltage which a dielectric material can withstand without breaking down (without losing its dielectric property) is called its dielectric strength. It is represented by kV/mm ... or is no longer an insulator) for a specified thickness, is its breakdown voltage. 

Description : The electric breakdown strength of insulating materials depends on  (A) Nature of applied voltage (B) lmperfection of dielectric material (C) Pressure, temperature and humidity (D) All or these

Answer : The electric breakdown strength of insulating materials depends on  (A) Nature of applied voltage (B) lmperfection of dielectric material (C) Pressure, temperature and humidity (D) All or these

Description : Define Dielectric Strength for transformer oil. State its value for new transformer oil.

Description : What is dielectric strength of an insulating material? What is its unit?

Answer : Dielectric Strength: The dielectric strength of an insulating material is the maximum voltage which the insulating medium can withstand without breakdown. Unit is volts per millimeter (V/mm), or kV/mm or kV/cm

Description : The dielectric strength of transformer oil is expected to be?

Answer : The dielectric strength of transformer oil is expected to be 33 kV.

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