Question

Each line of a 3-phase system is suspended by a string of 3 similar insulators. If...

Each line of a 3-phase system is suspended by a string of 3 similar insulators. If the voltage across the
line unit is 17·5 kV, calculate the line to neutral voltage and string efficiency. Assume that shunt capacitance
between each insulator and earthed metalwork of tower to be 1/10th of the capacitance of the
insulator.

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