Question
Download Solution PDFVoltage distribution across the disk of strings of suspension insulator assembly is -
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe following points may be noted regarding the potential distribution over a string of suspension insulators:
- The voltage impressed on a string of suspension insulators does not distribute itself uniformly across the individual discs due to the presence of shunt capacitance.
- The disc nearest to the conductor or line has a maximum voltage across it. As we move towards the cross-arm, the voltage across each disc goes on decreasing.
- The unit nearest to the conductor is under maximum electrical stress and is likely to be punctured. Therefore, means must be provided to equalize the potential across each unit.
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