DTU Network Feeder Power Distribution Terminal Automation Device High Performance

DTU power distribution network feeder automation device with high-performance

DTU power distribution network feeder automation device is used for terminal monitoring for RMU, small switching station,can connect with master station and realize the electrical signal gathering and control from multi-lines, fault detection, fault area location, isolation and non-fault area power restore to improve power supply reliability.

DTU power distribution network feeder automation device is with a hardware platform of 32 bits of microprocessor of high-performance, is with embedded real-time operation as a software development platform, also with characters of high stability and reliability , high performance,high intensity and low cost and easily installation.

DTU provides enough communication interface( 4 technical grade RS232 Serial ports, 2 of them can be equipped as RS485 ports,2 pieces of 10M Ethernet port,1 piece of USB port),main processor adapts technical grade 32 bits of high-performance processing chip, with specialized maintenance software, also can be remotely kept maintenance by specialized network, such as each CPU module is realized by bus. Main CPU module is as master station to control the whole communication process, the gathering CPU Module is as subsequent station, the communication rates is above 9600bps. Several device constitutes Ethernet bus through inner embedded industrial grade switch to make sure data processing and data exchange with sufficient bandwidth.

Communication function:

1. Communicate with upper station or station-control terminal,transmit the gathered and analyzed data to upper station and receive command from upper station or station-control terminal.
2. Communicate with smart device such as distribution transform detection terminal, receive and transmit its data.
3. Communicate with other system in substation to exchange information and data.
4. Support many Communication protocols such as DNP3.0,IEC101,IEC104CD,T,MODBUS etc.
5. Support many communication ways such as wireless GPRS,Fiber optic Ethernet, RS232/485 etc.

Protection function:

1. Over-current protection functions including Quick switch off, quick switch off timing and over-current protection functions (optional)
2. Reclosure,interlock secondary reclosure function.(optional)

LCD operation function:

LCD to display remote measurement value,locally remote control operate and modify protection parameters.(optional)

Distributed smart functions:

1. Logically control function(optional)
2. Equipped with self-switching function. automatically switch over power supply mode in double power supply system. (optional)

power supply management function:

1. With data protection function even power off, data recorded can be kept for a long time and not lost.
2. With main and sub-main power supply to realize power supply switching seamlessly.
3. intelligent maintenance for storage battery.

man-machine interaction:

1. Running indicator:running status for each unit
2. Alarm indicator:indicate fault status for device
3. Line fault indicator:indicate corresponding line fault status.

self-check and self -recover function:

With self-recover function of restarting software when power restore. With software and firmware watch-dog.

There is type test report for it, test items as following: