Ground fault detector for power transmission line

• Main Authors: YANG SHENJI, ZHEN YINGXU
• Format: Patent
• Language: Chinese; English
• Published: 15.08.2012
• Subjects: GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ONOTHER TECHNOLOGY AREAS; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORKOPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FORIMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION,DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TESTING

The invention discloses a ground fault detector for a power transmission line. The ground fault detector comprises a shell, an operation panel, a high-voltage line, a ground line and a master control circuit, wherein the master control circuit is composed of a power module, a switch, a potentiometer, a D/A (Digital/Analogue) inverter module, a positive binding post, a negative binding post, a detecting module, an output module, a display module and an alarm module; the power module, the switch, the potentiometer and the D/A inverter module are electrically connected with one another; the positive binding post and the negative binding post are both electrically connected with the output module; the detecting module and the output module are both electrically connected with the D/A inverter module; the alarm module and the display module are both electrically connected with the detecting module; the operation panel is connected with the shell; all the switch, the potentiometer, the positive binding post, the ne