Q/Derive from Figure (1) the final equation and law (V4,V5) by assuming given data , the equivalent circuit for a 5- disc string. Let us suppose that self capacitance of each disc is C. Let us further assume that shunt capacitance C, is some fraction K of self capacitance i.e. , C, = KC . Starting from the cross - arm or tower, the volt age across each unit is V1 , V2 ,V3 , V4 and V5 , respectively as shown. Applying Kirchhoff's current law to node A, we get,

Q/Derive from Figure (1) the final equation and law (V4,V5) by assuming given data , the equivalent circuit for a 5- disc string. Let us suppose that self capacitance of each disc is C. Let us further assume that shunt capacitance C, is some fraction K of self capacitance i.e. , C, = KC . Starting from the cross - arm or tower, the volt age across each unit is V1 , V2 ,V3 , V4 and V5 , respectively as shown. Applying Kirchhoff's current law to node A, we get,

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter25: Surge, Spike, And Lightning Protection

Section: Chapter Questions

Problem 10RQ: In reference to the load, how are capacitors connected to help prevent voltage spikes and surges?...

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