Overview of DTU distribution automation terminal device:

DTU series distribution automation terminal device is a protection and monitoring terminal product developed for multi line acquisition sites such as ring main unit and small switching station in distribution network.

The current and voltage acquisition of the main control unit in the DTU device adopts a / D special high-speed sampling chip, and the device also adopts a 32-bit MCU control chip. It is a high-voltage switch control device, which can quickly and stably complete the monitoring of the high-voltage switch. It integrates protection, measurement, control, monitoring, communication, movement and other functions in one, with high integration, flexible configuration and friendly interface. It is widely used in radial power supply and ring network power supply system, which can help the system identify the transient fault and fault of the line, automatically eliminate the impact of the transient fault on the line, isolate the fault section, avoid long-term large-area blackout, and automatically restore the power supply of non fault section, so as to realize the automation of distribution network economically and practically.

DTU distribution automation terminal device features:

1. Unified core public platform: using embedded real-time operating system, supporting high-speed Ethernet bus and can bus, large interface capacity.

2. Diversified configuration of communication mode and communication protocol: the hardware configuration is independent of communication management module, and the hardware configuration supports the exchange of main and standby, and redundancy design. The software configuration supports multiple communication modes (Ethernet, GPRS, optical fiber, etc.) and multiple communication protocols (such as more than 50 kinds of GB101, gb104, Mudbus, etc.), and can communicate with multiple master stations of different levels at the same time.

3. Flexible configuration of remote signaling, remote control and telemetry: the number of points of three remote functions can be configured according to the needs of the project, which is truly modular design.

4. Intelligent power management: multiple power supply, support battery switching of various media and capacity, intelligent battery management (can automatically realize battery activation), output voltage and power of operation power supply are monitored and displayed, with perfect overload and short circuit function, backup power supply hot backup provided by battery is online.

5. Convenient maintenance function: provide remote and local maintenance interface, and operators can maintain it locally or remotely in master station. Support handheld wireless maintenance, can be convenient for debugging.

6. Flexible and convenient strategy configuration: current type DA, voltage type DA, composite type DA. The system adopts modular design, which can support the use of various specifications of the loop, and supports 18 loops.