Title: Power-supply rectifying system at direct current side with protection device
Application Number: 200610047728 Application Date: 2006.09.13
Publication Number: 1937346 Publication Date: 2007.03.28
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H02H7/26;H02J1/00
Applicant(s) Name: Shenyang Aluminium-Magnesium Design Inst. Address:
Inventor(s) Name:
Attorney & Agent: zhangli xin
Abstract:
    In particular, the disclosed power supply rectification system is aimed at DC bus without quick breaking switch of multiple or single rectification system. When producing inner short circuit fault, the disclosed rectifier can cut off and insulate DC power supply rectification system at fault point quickly. Being setup in front of DC disconnecting switch from DC output of each rectifier unit, a DC non-contact disconnecting switch device possesses reverse blockout function, and can be shutoff at same time following ac circuit breaker in high voltage. The invention solves issues that load at DC side cannot be cut off in time, and fault continues deterioration caused by counter-electromotive force of Dc load for former DC power supply system, where there is no quick breaking switch at DC side. The invention raises operation reliability of rectification system greatly.
Time: 6