High tension transmission line comprehensive tester and testing method

• Main Authors: MA GUOHAI, LI ZHONG, PEI YUJIE, LU TIANFENG, SHI FENG, GONG CHENBIN, XU JIANGUO, HUANG DONGWEI, REN DONGXIA, GUO LAN, ZANG LEIMO, CAO HUIJIE, JIN MIN, ZHANG LI, GAO WEI, LANG DONGYAN, XU BO, LI YINGXI, DONG JUN, NAN YANG, CHEN JINGYANG, WU YINGMING, LI HAN, TIAN HUA, WANG HONGYAN, LIU XIN, GU MENGSHAN, BAI ZHONGBIN, HE JIANG, HAO WENFENG, YUE CHENGCHENG, CHEN FENGJUN, LI SIMIN
• Format: Patent
• Language: Chinese; English
• Published: 15.10.2014
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention relates to a high tension transmission line comprehensive tester which is structurally characterized in that a data testing calculation unit is connected with a power supply module, a pulse width modulation (PWM) control unit, a direct current constant voltage constant current source, an impedance matching unit, a standard resistor, a measured line resistor, a relay control unit, a storage and printing unit, a display unit and a keyboard. The PWM control unit, the direct current constant voltage constant current source, a power supply filtering unit, the impedance matching unit, the measured line resistor and a standard resistor are sequentially connected. The relay control unit is connected with an interference voltage detection unit and the impedance matching unit. The resistance-capacitance voltage dividing principle is utilized to measure the static induction voltage under 20kV, a disperse Fourier development technology is adopted to test line loop resistance, digital filtering is utilized t