Title :
Experimental investigations on switching overvoltages induced by current chopping in low voltage contactors
Author :
Weiner, H. ; Lietz, A. ; Amft, D. ; Breitfeld, D.
Author_Institution :
Moeller GmbH, Bonn, Germany
Abstract :
Based on a large number of experiments the effects of current chopping in low voltage contactors are investigated for switching off inductive loads. The experimental set-up consists of a standard three-phase low voltage application. Voltage and current are measured three phase at the contactor and at the load simultaneously. 12 signals are evaluated per experiment. The experimental results are compared with the experiences of medium voltage applications
Keywords :
choppers (circuits); electric current measurement; load (electric); overvoltage; power system transients; switchgear testing; switching; vacuum contactors; voltage measurement; current chopping; current measurement; inductive load switching; low voltage contactors; medium voltage applications; switching overvoltages; three-phase low voltage application; voltage measurement; Circuits; Contactors; Current measurement; Low voltage; Medium voltage; Optical fiber cables; Phase measurement; Power transformer insulation; Surges; Zero voltage switching;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 2000. Proceedings. ISDEIV. XIXth International Symposium on
Conference_Location :
Xi´an
Print_ISBN :
0-7803-5791-4
DOI :
10.1109/DEIV.2000.879017
