On the voltage distribution across a string of suspension insulators

A difference equation formulation is given for the problem of determining the voltage distribution across a string of suspension insulators, taking into account the capacitance Cg between the insulator hardware and the guard ring, and the conductance of the insulator. Explicit closed-form solution is given for the case in which Cg does not vary from unit to unit and the form of tapering needed to make a uniform distribution of the voltage is worked out.