transient stateWaveform recording typefaultindicator

——Collectingunit

As an important part of smart grid construction, the intelligent distribution network faces the huge challenge of how to quickly and accurately locate the faulty section in the event of line faults, especially small current grounding faults. The existing distribution network automation, feeder automation, and traditional fault location technologies have a series of problems such as high investment, the need for power outage construction, and low accuracy. The intelligent distribution grid line status monitoring system can accurately detect the type of line fault and quickly locate the fault section through precise measurement of line current and high-speed waveform recording, thereby shortening the response and processing time of line faults and improving power supply reliability.

The intelligent distribution network line status monitoring system is an innovative intelligent monitoring product for distribution lines. The acquisition unit is the core sensing unit of the system and is suitable for overhead lines in 10kV distribution networks. Relying on innovative small current self tapping technology and wireless communication technology, the collection unit can report monitoring data in real time, allowing power workers to grasp the line conditions at any time. With the help of big data based comprehensive analysis technology for distribution network lines, the intelligent distribution network line status monitoring system can analyze the line status including line faults, line loads, power quality, etc., providing comprehensive and reliable data support for optimizing the distribution network structure.

nAccurately identify line operating conditions and support current waveform recording

With the help of innovative precise current measurement and ground electric field detection technology, it is possible to detect line currents0~600AObtain ± within the range1%The measurement accuracy is high, and it can detect the amplitude of the electric field between the line and the ground with high sensitivity±0.5%The changes can accurately identify the working conditions of the line. When there is a line fault or a call for testing, the current can be recorded to accumulate operational experience and continuously improve.

nIntelligent detection of circuit faults to prevent misoperation and refusal to operate

Based on precise identification of line conditions, faults such as phase to phase short circuits and single-phase grounding can be accurately detected. With the help of powerful signal processing and microcomputer computing capabilities, the fault current alarm action value can be automatically determined; It can effectively prevent misoperation and refusal to operate caused by load fluctuations, closing excitation inrush current, etc; It has the characteristic of inverse time limit action, which can maximize the coordination with the protection action characteristics of the substation, avoid instantaneous disturbances, and ensure correct action.

nProvide rich operational information

Provide operational information such as line current, ground electric field, fault status, and live status for the main station system, as well as wireless signalsstrengthAuxiliary information such as battery voltage helps operators fully grasp the operating status of the line.

nDiversified line condition indication function

Adopting ultra high brightnessLED, provide360 ° omnidirectional visual status indication, and display the current line operating conditions through multiple flashing frequency combinations. After the line fault is eliminated and the power supply is restored, it can be automatically reset; It can automatically reset the fault status on a scheduled basis or remotely set and reset it wirelessly.

nReal time online, the status of the line can be controlled at any time

Adopting short-range wireless andRemote wirelessHybrid networking technology, supporting various complex line topologies; Proactively scheduled (default)5Minutes, adjustable) to report the status of the line,It has bidirectional confirmation and retransmission functions for communication transmission, ensuring the reliability of data transmission. at any timeControl the real-time operation status of the line and eliminate traditional fault indicatorsThe phenomenon of "waking up once a day and not waking up after sleeping" can effectively reduce wireless communication data tariffs.

nInnovative small current online power extraction technology, no battery required

Despite the built-in high-capacity and long-life lithium-ion battery, the application of new materials and innovative power technology can reduce line current0~600AContinuous power supply within the range, line current5A can meet the minimum requirements for self powered operation without the need for batteries, effectively extending the product's lifespan.

nMaintenance free design, capable of remote wireless upgrade

After hanging the line, it can operate autonomously and is designed to be completely maintenance free. When necessary, remote wireless maintenance of operating parameters, updating fault criteria or upgrading software programs can be carried out to facilitate flexibility and improve work efficiency.

nLive loading and unloading, safe and convenient

Insulated operating rods can be used for live installation and disassembly, which is safe and convenient.

nHigh level security protection, not afraid of wind and rain

Adopting reliable industrial design, it has high-level electromagnetic compatibility protection capability, extremely strong wide pressure and wide temperature working characteristics, and the shell protection level reachesIP67, can resist8M typhoon and rainstorm; The structural components are treated with anti-corrosion and rust prevention, which can resist salt spray corrosion and ensure long-term safe and stable operation in harsh environments.