Title: Arc, earth leakage protection, and protection method
Application Number: 200610116755 Application Date: 2006.09.29
Publication Number: 1960102 Publication Date: 2007.05.09
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H02H3/28;H02H3/14;H02H11/00
Applicant(s) Name: Jiang Chuang Address:
Inventor(s) Name: Jiang Chuang
Attorney & Agent: wangru zhen
Abstract:
    Arc and earth leakage protector is composed of control circuit board, fault detection module, and tripping device. Output of the fault detection module is connected to the control circuit board, and input of the module is connected to the input end of fault signals of arc or leakage generated by load. The tripping device is connected to signal output end of action of control circuit board, and electrical source supplying end for load respectively. Signal after detecting leakage current, arc for creepage equipment by using current transformer passes through demodulation and amplification processes to microprocessor for further analyzing process. Microprocessor determines whether tripping signal is need to send out. Being amplified by drive circuit, tripping signal forces tripping apparatus to action to cut off power supply for the creepage equipment. The invention prevents and reduces safety misadventure from occurring caused by leakage current, arc etc of creepage equipment.
Time: 12