IMPACT OF CONTACT JOINTS RESISTANCES ACCOUNT OF LOW VOLTAGE SWITCHING DEVICES

Abstract

The paper studies the problem of the impact of basic circuit and mode parameters of the equipment and shop-floor grids on the value of the equivalent resistance of low voltage grids of the industrial enterprises. The conditions, under which non-accounting of contact joints resistances of switching devices does result in the substantial error in the process of determination of the equivalent resistance in 0.4 kV grid, are considered.