Q4: A: A string of 3 insulators and the ratio of Ce/C = 0.15, if the string is connected to 3-4 line voltage of 33 kv: 1- Find the voltage distribution over the unit of the string 2- Find the voltage distribution when the string supplied by a guard ring which add two air capacitance of 0.2 C, 0.15 C respectively to the nearest to the conductor 3- Compare between the efficiency in 1&2 (before and after adding the guard ring)

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Q4:
A: A string of 3 insulators and the ratio of Ce/C = 0.15, if the string is connected to 3- line
voltage of 33 kv:
1- Find the voltage distribution over the unit of the string
2- Find the voltage distribution when the string supplied by a guard ring which add two air
capacitance of 0.2 C, 0.15 C respectively to the nearest to the conductor
3-
Compare between the efficiency in 1&2 (before and after adding the guard ring)
Transcribed Image Text:Q4: A: A string of 3 insulators and the ratio of Ce/C = 0.15, if the string is connected to 3- line voltage of 33 kv: 1- Find the voltage distribution over the unit of the string 2- Find the voltage distribution when the string supplied by a guard ring which add two air capacitance of 0.2 C, 0.15 C respectively to the nearest to the conductor 3- Compare between the efficiency in 1&2 (before and after adding the guard ring)
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