1. Calculate the capacitance (Phase-to-neutral) of a three phase 150 km double circuit line as shown in fig 2.58 has a conductor of diameter 1.8 cm and the conductors are arranged at the corners of an hexagon with side 2.8 m.
![442_fig.jpg](https://secure.tutorsglobe.com/CMSImages/442_fig.jpg)
Fig Conductor' location in hexagonal spacing
2. Calculate the capacitance per phase of a three-phase, double circuit lines as shown in fig 2.59. The diameter of each conductor is 1.8 cm.
![1874_fig1.jpg](https://secure.tutorsglobe.com/CMSImages/1874_fig1.jpg)
Fig. Vertical configuration of three-phase, double circuit line