Overhead short-circuit and earth-fault indicator

Relay

Overhead short-circuit and earth-fault indicator is used to monitor the circuit operation, fault condition and the circuit parameters. It is an smart digital management system used in power transmission line maintenance with the functions of distributive monitoring, centralized management and instant alarming. The system consists of 3 line fault monitors, a fault data acquisition terminal and a monitoring center. In this system, 3 line fault monitors are installed on each power line (such as branching points, places with high occurrence frequency of faults and cable joints) to real-time monitor the power line operation. Anytime when there is a short circuit line fault, earth fault, line off, stealing happens, the monitoring center will alarm in 10 seconds and send the alert message to the operators’ cell phones. The system can also monitor and display the change of the load current and temperature. With this system, the operators can monitor the remote line operation inside the doors.