I. Project completion information
Installation project: high-voltage cable fault and hidden danger monitoring device Installation case
Project time: 2024.08.12
Project completion unit: Shenzhen Dinsee Smart Technology Co.Ltd
II. Functional characteristics
1, fault ranging: fault ranging is the basic purpose of high-voltage cable and hidden danger monitoring device, to realize the fault section and fault point location, for the analysis of the fault to provide a wealth of recording data;
2, the analysis of fault type: after the fault occurs, through the A, B, C three-phase current traveling wave, the analysis of the industrial frequency fault current waveform, identify the fault type, to provide reference for the maintenance of the line;
3, hidden trouble early warning: through the monitoring of high-voltage cable lines weak hidden trouble traveling wave, for the existence of hidden trouble cable early warning and overhaul, to prevent the occurrence of tripping faults;
4. Self-inspection of equipment:
(a) The main components of the device are equipped with the function of self-testing at regular intervals, and the abnormal situation needs to be actively alarmed;
(b) Automatic reset recovery for possible device crash;
5、Acquisition of terminal status information: realize the acquisition and statistics of terminal solar or CT voltage, battery, temperature, GPS status, GPRS signal strength and other status information;
6, advanced principle: distributed installation to shorten the monitoring distance and solve the signal attenuation problem. Adopting double-end ranging, it can locate the fault point;
7, powerful signal acquisition unit: high-voltage cable monitoring device using a host multi-channel structure. It can simultaneously collect 7 high-frequency signals (3 high-frequency current traveling wave, 3 hidden current traveling wave, 1 voltage traveling wave), 8 low-frequency signals (3 industrial frequency current, 4 ground-loop current, 1 voltage). Powerful signal acquisition unit for fault recording;
8, dynamic wave speed adaptive: the system according to fault data adaptive adjustment of traveling wave speed, positioning accuracy is more accurate;
9, highly synchronized sampling: based on the GPS timing system and precision sampling synchronization algorithm, so that the system's sampling synchronization error is greatly reduced, improving the ranging accuracy.
Our company's innovative research and development of transmission and distribution line online monitoring device, overhead transmission lines, power cable safety equipment and intelligent mobile line visualization monitoring system, anti-mountain fire infrared monitoring device, transmission line anti-external breakage alarm device, line visualization monitoring, real-time monitoring of the state of the power line, power grid micro-meteorological monitoring devices, warning alarms, bird repellent devices, law enforcement recorders and other products have been widely used in the country. The products have been widely used in electric power related sites all over the country and received good feedback from customers!
transmission line online monitoring equipment official website: http://www.gaoxingya.cn
