Repetitive High Current Opening Switch
Abstract
This paper describes a repetitive high current opening switch designed to discharge inductive energy stores. The switch employs a rotating shorting bar which electrically connects two stationary brush modules. As the shorting bar simultaneously sweeps across the finger contacts of each brush module, the switch is closed and conducts current. As the ends of the brush modules are approached, the switch resistance increases and the resulting voltage commutates current into the load. The rotating shorting bar and brush modules are positioned very close to the load to reduce the switch loop inductance and minimize the commutation energy which the switch dissipates. Unlike other rotary switch designs, only a portion of the brush modules conduct current at any given time. This decreases the duty on the brush contacts and increases switch life.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1987
- Accession Number
- ADA635565
Entities
People
- James M. Gruden
Organizations
- Wright Laboratory