Question

a) Three insulators forming a string of insulators has a self-capacitance of C farads. The capacitance from the metal joints to the earth is 0.2C Farads. Calculate the string efficiency of the arrangement.​

b) Discuss the relationship of string efficiency on the voltage distribution of Insulators. Can string efficiency value be 100% practically? Justify your answer.

Answer 1

20 Each insulater has a self capacitance :cf Capacitance from metal joins to earth = 0.2 CF عن th 02 13 AI3 Los conducten. TIT String effétiency voltage acws Steing no.of insulatex voltase across disc the conductor nearer to Voltage ac goss Strings Vituzt v3 Iz= Isten av lot = vyoqtv. (y00:24) VE OIL, V2= TV2 = 0.34 Iz= Izt is a v3 upp = V2 404+ (Litva) (0:28 psfo) -> V3=V2 + 4.3 vit f g h 0.212 1-2V2 to.ru - 1-2 (0-3) V7024 8.564 turnir K3=datoril

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