Title: Detecting system for relay protection fault and oscillation based on double CPU and its distinguishing method
Application Number: 200610016347 Application Date: 2006.10.26
Publication Number: 1945913 Publication Date: 2007.04.11
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H02H7/26;G01R19/25;G06F9/00;G06F17/00
Applicant(s) Name: Tianjin Univ. of Science and Engineering Address:
Inventor(s) Name: Ma Youjie;Gu Yaqin;Zhou Xuesong;Wang Zhixin;Zhang
Attorney & Agent: wangli ge
Abstract:
    This invention relates to a relay fault protection and oscillation test system based on double CPU composed of a data collecting module, an A/D conversion module, a DSP signal process module, a switch control module and a display module, the differentiation method for oscillation and fault is to compute modulus value and analyze and compare the measurement values, which can differentiate fault during oscillation so as to avoid error operation of relay protection devices during oscillation.
Time: 9