The sudden variable method and transient zero sequence current method are particularly accurate in determining short-circuit faults and single-phase grounding faults. equalWhen a short circuit or grounding fault occurs in a 10kV line, the system software directly pushes the fault diagnosis result and sends a text message to the operation and maintenance personnel's mobile phone.

The system can accurately monitor and locate small current grounding faults, and analyze information such as line loss and power quality, which can effectively shorten the troubleshooting time, reduce power outage losses, improve power supply reliability, and achieve the goal of improving quality and efficiency.

[Collection Unit]

The collection unit is the core sensing unit of the transient waveform fault indicator. Relying on innovative small current self tapping technology and wireless communication technology, it can judge and indicate various types of short-circuit faults, collect and capture single-phase grounding fault characteristic data, collect load current and other information, and upload fault information, load current and other information to the collection unit, providing comprehensive and reliable data support for optimizing the distribution network structure.

[Key Features]

Innovative small current（5A) Self powered technology, real-time online stable operation;

Advanced electronic current transformer, lead current measurement accuracy+1%；

Optimize the design of electric field sensors to accurately identify voltage drops and power outages in power lines;

Intelligent triggering of line current, high-frequency recording of ground electric field（4kHz), capture transient waveform signals of small current grounding faults;

Low power wireless bidirectional communication, supporting remote program upgrade and maintenance;

Live installation, disassemblyIP67 protection level.

【 Gathering Unit 】

The aggregation unit is the bridge between the sensing unit of the system and the main station of the system, utilizing short moment wireless andGPRS remote wireless hybrid networking technology enables the system to have channel monitoring, switching, and fault alarm capabilities, supporting system diagnosis, self-healing, and data transmission after communication interruption recovery. The collection unit adopts a highly reliable power supply system with solar energy and maintenance free battery primary and backup power supply, ensuring stable and reliable operation of the system.

[Key Features]

High reliability power supply system, powered by solar energy and maintenance free batteries as primary and backup sources;

Three phase synthesis obtains transient zero sequence current and electric field signals, achieving accurate on-site detection and localization of grounding faults;

GPRS high-precision timing, obtaining precise absolute time scale;

Equipped with channel monitoring, fault alarm, system diagnosis, and self-healing functions;

Industrial grade design,IP5S protection level, can be remotely maintained and upgraded wirelessly, supports SMS management.