The following points may be noted from the above mathematical analysis: (i) If = 0·2 (Say), then from exp. (iv), we get, = 1·2 and = 1·64 This clearly K V2 V1 V3 V1. shows that disc nearest to the conductor has maximum voltage across it; the voltage across other discs decreasing progressively as the cross-arm in approached. (ii) The greater the value of (= the more non-uniform is the potential across the K C1/C), discs and lesser is the string efficiency. (iii) The inequality in voltage distribution increases with the increase of number of discs in the string. Therefore, shorter string has more efficiency than the larger one
The following points may be noted from the above mathematical analysis: (i) If K = 0·2 (Say), then from exp. (iv), we get, V2 = 1·2 V1 and V3 = 1·64 V1. This clearly shows that disc nearest to the conductor has maximum voltage across it; the voltage across other discs decreasing progressively as the cross-arm in approached. (ii) The greater the value of K (= C1/C), the more non-uniform is the potential across the discs and lesser is the string efficiency. (iii) The inequality in voltage distribution increases with the increase of number of discs in the string. Therefore, shorter string has more efficiency than the larger one
U3-L14_-STRING-EFFICIENCY-AND-METHODS-OF-INCREASING-STRINGS-EFFICIENCY.docx