FTU, DTU, RTU Feeder Measurement and Control Terminal

Product Overview

FTU, DTU, RTU series feeder measurement and control terminal (FTU) is based on the advanced experience of Japan, the United States, the United Kingdom and other foreign developed countries, widely drawing opinions from domestic power system experts, combined with the actual application needs of users of the State Grid and several provinces of the Southern Power Grid. Using the new generation of feeder line measurement and control terminal developed by ADI high-performance 32-bit industrial DSP chip, the product performance reaches the highest level in the country. It has unique advantages in stability, flexible scalability, multiple fault identification, a variety of communication interfaces and technology integration, and power management.

Range of Suitability

FTU, DTU, RTU distribution network automatic feeder terminal is an intelligent terminal designed for the intelligent distribution network, widely used in the distribution network ring cabinet (DTU), open and close office (DTU), switch station (DTU), post switch (FTU), remote terminal equipment (RTU) and other places. It mainly completes the local monitoring, control and fault detection functions of the switchgear, and can be used as a communication relay and regional control center. The DAF-800 feeder measurement and control device can be combined with the distribution network automation master station (SCADA) or sub-station system to realize the acquisition and control of multiple circuits. Through the analysis and judgment of the line data, the fault detection and fault location can be realized, so that the fault area can be quickly isolated and the non-fault area can be restored to power supply, and the power supply reliability can be effectively improved. According to the application of different occasions, the device can be divided into: feeder terminal unit FTU(DAF-810), station terminal unit DTU(DAF-820/830 or multiple units), distribution terminal unit TTU(DAF-810).

FTU, DTU, RTU feeder measurement and control protection terminal can be connected with various types of domestic and imported ring cabinets, reclosers, circuit breakers, load switches; It can be used with various AC operating circuits such as AC380V/220V/100V, DC220V/24V DC operating circuit, motor spring energy storage mechanism, permanent magnet operating mechanism, etc.

Hardware Fundamentals

The main chip of FTU, DTU and RTU feeder measurement and control terminal adopts the 32-bit high-performance industrial DSP(digital signal processing) chip of ADI, which has a processing speed of 800MIPS and strong digital signal processing capability. The co-processor adopts the ultra-low power microprocessor of T company. The chip is a 16-bit single-chip microcomputer with a large number of on-chip peripherals and strong control and processing capability. Two processor chips communicate through high-speed synchronous serial interface (SPI) and cooperate with each other to complete the functions of the device.

The hardware of the device extends the latest large capacity ferroelectric memory (FRAM) of RAMTRON company in the United States, which has the characteristics of non-volatile, fast storage speed and large capacity, and is used to store important data such as set parameters, fault recording data and historical event records. The device is equipped with hardware clock circuit, using RAMTRON company's special clock chip, high precision and good stability, and can accept the communication time command.