Q1) Find the string efficiency of each line of a 3-phase is hung by a 3 strings of insulators. Each insulator has (C) Farads. The shunt capacitance of metal is 0.5 C to earth and of 0.2 C to the line, and the line a guard ring increases the capacitance to the line of the lowest insulator to 0.6 C.

Q1) Find the string efficiency of each line of a 3-phase is hung by a 3 strings of insulators. Each insulator has (C) Farads. The shunt capacitance of metal is 0.5 C to earth and of 0.2 C to the line, and the line a guard ring increases the capacitance to the line of the lowest insulator to 0.6 C.

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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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Q1) Find the string efficiency of each line of a 3-phase is hung by a 3 strings of insulators. Each
insulator has (C) Farads. The shunt capacitance of metal is 0.5 C to earth and of 0.2 C to the line, and the
line a guard ring increases the capacitance to the line of the lowest insulator to 0.6 C.

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