Functional characteristics
■ Wireless reception: cooperate with the overhead intelligent fault indicator, and use the short-distance wireless technology to receive the fault indication
Line fault and recording information sent by the receiver;
■ information forwarding: forward fault and wave recording information to the monitoring master station in the way of GPRS / GSM;
■ maintenance function: support remote configuration and local maintenance function;
■ data storage function: ① it can store fixed-point data of current and phase electric field strength for at least 30 days, 64 fault event records and 64 fault wave records, and can be saved in case of power failure, and fixed-point data is 96 points in a day; ② it has the function of log recording;
■ protection level: ≥ IP55
technical parameter
■ Ambient temperature: - 40 ℃ —— + 70 ℃;
■ voltage level: 10-35kV;
■ power consumption of the whole machine: ≤ 0.02w;
■ power supply mode: solar panel or TA power supply mode, rechargeable lithium battery as backup power supply;
■ backup power supply: battery rated voltage dc3.6v, capacity not less than 7Ah;
■ number of indicators: 9;
■ communication distance: wireless two-way communication with phase fault indicator, communication distance ≥ 50m; wireless medium
Relay or routing mode communication ≥ 500m;
■ communication protocol: the communication protocol shall comply with the implementation rules of DL / T 634.5101-2002 protocol of State Grid Corporation of China and DL / T 634.5104-2009 protocol of State Grid Corporation of China;
■ timing and punctuality: support timing of master station and Beidou or other synchronous clock devices, with punctuality accuracy ≤ 2S / 24h;
■ weight: ＜ 4.5kg;
■ model selection: when the load is ≥ 15a, the suspension installation mode can be selected; when the load is < 15a, the pole fixed installation can be selected
Loading mode;
■ MTBF：≥70000h；