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

Volume

2

fYear

2000

fDate

2000

Firstpage

423

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/DEIV.2000.879017

Filename

879017