On-line monitoring system for tower insulator leakage current
The system uses the leakage current collection device installed on the top of the insulator string to monitor the leakage current of the insulator due to pollution, moisture and other factors in real time, and sends the monitoring information to the remote monitoring center through the GSM/CDMA/GPRS or 4G network.
The system supports two modes: induction power supply and solar panel + battery power supply, which is easy to install. After it is put into operation, the operation department can timely grasp the pollution status and development trend of insulators, and scientifically arrange maintenance time accordingly, effectively prevent line pollution flashover accidents, reduce economic losses, and improve line safety operation and information management level.
Leakage current measurement range: 10uA~100mA;
Leakage current measurement accuracy: 1%;
Number of measuring points: 1～6 strings of insulators;
Working environment: temperature: -40℃～+85℃; relative humidity: ≤100%; atmospheric pressure: 550hPa～1060hPa;
Protection level: IP65;
Working power consumption: ≤2W; standby power consumption ≤0.5W;
Power supply mode: solar + battery or induction power supply, input voltage +12～24V;
Battery life: ≥3 years, and can supply power continuously for more than 30 days without external charging;
MTBF: ≥80000 hours;