Title :
Principles of stress-related insulation coordination in low voltage installations and equipment
Author :
Maier, R. ; Stimper, K.
Author_Institution :
Siemens AG, Erlangen, Germany
Abstract :
A brief description of the principles of stress-related insulation coordination is given based on a very large field test of electrical insulations and several university investigations. This report is intended to give the basis for a physically founded revision of insulation coordination standards. Long-time and short-time voltage stresses are discussed. The microenvironmental conditions acting on the insulations are described. The insulating material and shape of the electrodes are discussed. The electric strength of clearances in air and the electric strength of creepage distances are detailed.<>
Keywords :
electric strength; insulation co-ordination; standards; clearances in air; creepage distances; electric strength; electrodes shape; insulation coordination standards; long-time voltage stresses; low voltage equipment; low voltage installations; microenvironmental conditions; short-time voltage stresses; stress-related insulation coordination; Breakdown voltage; Dielectrics and electrical insulation; Insulation testing; Low voltage; Pollution measurement; Power cable insulation; Power cables; Space vector pulse width modulation; Stress; Surge protection;
Journal_Title :
Electrical Insulation Magazine, IEEE
