Simplified Method of Calculation of Wire Closing-In with Due Account of Constructive Elements of Switch-Gears under Two-Phase Short Circuit

Abstract

The paper proposes a simplified and modified method of calculation of wire closing-in under two-phase short-circuit. The method takes into account main characteristics of short-circuit with the help of electrodynamic force impulse. An explicit formula have been developed to calculate maximum wire deflection with due account of constructive elements of switch gears and correction factor. The value of correction factor is calculated with the help of computer program in view of changes in wire configuration and their deformation in case of short-circuit.