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Application Of Industrial Ethernet Network In Distribution Automation

Date: 2017-06-06
Browsing Times: 9

 

Overview

Distribution network communicates every branch distribution station, distribution terminal with every master station by using industrial grade Ethernet switches, to collect information, monitor, and remote control. Distribution network automation is comprises of two subsystems, distribution network SCADA system and remote meter reading system, these two systems require different for data security, transmission delay, transmission reliability.

Application Of Industrial Ethernet Network In Distribution Automation

 

Distribution Network SCADA System

Description

Distribution network SCADA system is used to collect data from transformer substation, switching station, distribution substation, and RTU,TTU,FTU in the looped network cabinet, and also used to remote signaling, telemetry, remote control, condition monitoring ,alarm, sequence of event order. Remote Terminal Unit(RTU) is used to collect analog quantity and quantity of status of power running status. Transformer Terminal Unit(TTU) is used to real-time detect and record the current, voltage, and power. Feeder Terminal Unit(FTU) is a switch monitoring device installed beside the feeder line switch, is used to monitor, control and protect looped network cabinet, column switch, also with the function of communication automation.

Application Of Industrial Ethernet Network In Distribution Automation

 

Requirements

Distribution network SCADA system is power detection, power failure switching, power real-time scheduling system, data real-time and high-reliable transmission are required

The system services as remote signaling, remote control, remote vision, status monitoring, alarm etc. Communication system required QoS service

Outdoor installation, designed to stand up to the harsh environmental and extreme temperatures, damp-proof, dust proof are required Prevent from illegal access and data destroy Meet the requirement of Electromagnetic interference and electromagnetic capability

The equipment installed in unattended circumstance, product quality is required

Benefits

High-panel bandwidth, high capacity buffer memory, ensuring data fast forwarding, port forwarding delay<10μs, switches zero package loss

Carrier-grade QOS, support 8 QoS priority queue, support SP、WRR、WFQ scheduling mode, ensure SCADA system data forwarding priority, guaranteed the data transmission in real-time

Adopt international standard protocol, EAPS looped network protection recovery time<50ms, ERPS ring protection switching time<20ms

High-reliability, industrial level 4 design, operates under extended temperature range up to -40℃ to +85℃, dust proof, anti-salt mist, anti- vibration, anti-shocks, MTBF≥10 years

Meet with IEC61850, IEEE1613 anti-electromagnetic, interference and electromagnetic interference compatibility (EMC)

High-security, support 802.1x authentication access,prevent from illegal access, different grade operation password protection, ACL control strategy

 

Remote Meter Reading System

Description

Remote meter reading system is used to meter electrical degree, collect information, information remote transmission, software handling and analysis from background. The process is information collection from intelligent electrical meter by using serial server and concentrator. Upload data to the storage server at main control station, to complete intelligent payment and information record.

Application Of Industrial Ethernet Network In Distribution Automation

Requirements

Data collection has no specific requirement of delay , QOS data forwarding priority level below power SCADA data priority level

Serial server need to support multiple serial protocols, to meet different application requirements

Outdoor installation, designed to stand up to the harsh environmental and extreme temperatures, damp-proof, dust proof are required

Meet the requirement of Electromagnetic interference and electromagnetic capability

The equipment installed in unattended circumstance, product quality is required Prevent illegal access and data destroy

Benefits

Carrier-grade QOS, 8 QoS priority queue, support SP、WRR、WFQ scheduling, accurately classified the data, different data has different priority level

Serial server flexible networking, supportRS232/RS422/Rs485 3 serial protocols

High-reliability, industrial level 4 design, operates under extended temperature range up to -40℃ to +85℃ , dustproof, anti-salt mist, anti- vibration, anti-shocks

MTBF≥10years

Meet with IEC61850,IEEE1613 anti-electromagnetic interference and electromagnetic interference compatibility (EMC)

Adopt international standard looped network protocol, ERPS looped network protection recovery<20ms

 

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