Title: A method to realize high precision universal inverse time-limit protection
Application Number: 200610145568 Application Date: 2006.11.22
Publication Number: 1953291 Publication Date: 2007.04.25
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H02H7/00;H02H7/04;H02H7/06;H02H7/08;H02H7/26
Applicant(s) Name: Beijing Sifang Jibao Automation Co., Ltd. Address:
Inventor(s) Name: Zou Dongxia;Su Yi;Tu Liming
Attorney & Agent: wuhong wei
Abstract:
    The invention relates to a relay protective method, especially a relay protector and general reverse-time protection in controller. Wherein, said method comprises: the digit reverse-time protector samples the input value (current) to obtain its instant value; uses special algorism to calculate out the amplitude i of input value; when i is higher than the preset value i
Time: 10