transientWaveform fault indicator

——Gathering unit

Intelligent distribution network as the construction of smart gridofimportantlinkfacewearingDuring the occurrence of the linefaultespeciallyWhen there is a small current grounding fault,howFast and accuratelandLocate the fault areaThe paragraphA huge challenge. There are investments in existing distribution network automation, feeder automation, and traditional fault location technologiesbig、Need power outageconstructionAccurateLow rate, etca series ofproblem. IntelligentizationDistribution network line status monitoring system, throughRegarding the line currentMeasurement andtallquickwaveform recordingIt can accurately detect the type of line fault and quickly locate the faulty section, thereby shortening the linefaultResponse and processing time, improvePower supply reliability.

intelligentizationDistribution network line status monitoring systemIt is an innovative distribution systemlineintelligentmonitorThe product and collection unit are thesystemCore sensing unit and system master stationThe Bridge of InteractionWith the help ofShort distancewirelessandRemote wireless hybridnetworkingtechnology，Make the systempossessChannel monitoring, switching, and fault alarm capabilities, supporting system diagnosis, self-healing, and data transmission after communication interruption recovery. By adopting a highly reliable power supply system with solar energy and maintenance free battery primary and backup power supply, the system is ensuredstable and reliableElectricity workpersonnelReal time monitoring of line operating conditions and fault information is possible. Based onThe Big Datadistribution networklineComprehensive analysis technology，intelligentizationThe distribution network line status monitoring system canRegarding the status of power lines, including line faults, load currents, and power qualityconductAnalyze and optimize the distribution networkstructureProvide reliable data support.

nFlexible networking methods and secure data transmission

Establish short-range wireless networks between aggregation units, supporting star topology structures; With the help of 2.5GPower supply for wireless networksVPNEstablish communication between the private network and the main monitoring platform,Upload data to the main station to monitor the fault information and operating conditions of the distribution network.

nGPSHigh precision timing to obtain absolute time scale

The collection unit is equipped with a built-in GPS timing module and a high gain active antenna, with a timing accuracy of up to 1usBy using short-range wireless for wireless timing, the acquisition unit can obtainAbsolute time scale with an accuracy of ± 100us.

(Note: The collection unit is equipped with an optional GPS timing module.)

nThree phase synthesized zero sequence currentElectric field signalAccurate detection and localization of grounding faults on-site

By synthesizing the transient zero sequence current and electric field signals through three-phase synthesis, accurate detection and positioning of grounding faults can be achieved locally. At the same time, the waveform recorded by the fault time acquisition unit can be uploaded to the main station system for line fault analysis, inversion, and traceability.

nStable and reliable communication

Reliable industrial grade design, communication module adopts mainstream manufacturers' industrial grade wireless communication chips, with channel monitoring, channel switching, and fault alarm functions, supporting system diagnosis and self-healing functions; Support data transmission after communication interruption recovery to prevent data loss.

nultra-low power

The collection unit motherboard adopts low-power CPU and industrial grade wireless communication module, and uses special programming technology to achieve real-time bidirectional communication between the collection unit and the monitoring platform software, as well as between the collection unit and the acquisition unit, with extremely low power consumption.

nHigh reliability power supply system

We use solar power panels as the main power source and maintenance free long-life rechargeable batteries as backup power sources. When solar power is available, priority should be given to using solar power panels for power supply; In the absence of solar energy, using a backup power supply can support the collection unit to work continuously for 15 days (depending on the selected backup battery capacity). The built-in high-performance processor switches between the main and backup power sources based on real-time monitoring results of the solar power panel and battery.

nCan be remotely maintained and upgraded

Equipped with remote maintenance and upgrade functions, supporting automatic maintenance or upgrade of multiple terminals in batches and one by one, with safe and easy operation. Support SMS management function.

nA sturdy chassis that is dustproof, waterproof, and rust proof

The chassis is sturdy and rust proof, with sealing rings and waterproof joints, achieving an IP55 dust and waterproof rating, ensuring safe and stable operation outdoors for a long time.

Wireless communication technologyindicator

Collecting unit hardware specifications

Note:*Regular communication refers to communication with the main station once every minute, with a duration not exceeding2In seconds.