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| Solutions > IEC 61850-3 Ethernet Switches |
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| IEC 61850-3 Compliant Ethernet Switches Best Fit the Needs of Substations |
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| PowerTrans series of Ethernet switches offer superior EMI immunity, -40 to 85°C operating, Layer 3 routing, and redundant features for challenging substation conditions. A rugged, modular and rackmount design offers maximum flexibility with high fiber optic and Gigabit port density. |
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| Why Substations Need Ruggedized Ethernet Networks |
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| Utilities are beginning to replace many legacy and expensive proprietary technologies with the flexibility and cost effectiveness of Ethernet for mission-critical substation LANs. Since substation environments tend to be extremely varied, making Ethernet networks reliable and rugged is essential to achieve higher reliability, availability, and uptime of substation communications. |
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| Strong electromagnetic interferences |
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| The EMI stress in high voltage substations may cause errors or equipment damage in electronic communications. The general immunity standards for industrial environments are insufficient for substations. IEC 61850-3 specifies environmental and EMI immunity requirements for network equipment used in substations. IEEE 1613 is another industry standard that offers error-free device operation for challenging substation environments. |
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| Long-haul transmission and EMI shielding |
| Fiber optic transmission offers the benefits of greater EMI shielding, long-haul transmission, higher bandwidth and avoidance of ground loops, making it suitable for extending Ethernet into power utility substations. Normally, optical fiber is ideal for networking RTUs, relays, and IEDs in a substation because it is compatible with both serial and Ethernet connections, and is especially easy to deploy for remote transmission throughout the large substation area. Copper cabling is usually used for short-run Ethernet interconnection and easily installed for both 10 Mbps and 100 Mbps speeds. Therefore, most substations use a mixture of fiber and copper cabling to construct a flexible and cost-effective Ethernet network. |
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| Extreme temperature variation |
| Since the temperature boundary conditions found in substations can be extremely varied, substation LANs must be capable of operating reliably across a wide temperature range. The use of cooling fans is unacceptable under vibration conditions, since they downgrade the total reliability of the devices. |
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| Challenges to maintaining high network availability |
| A substation Ethernet LAN is an integral part of a mission critical protection and control systems that must perform extremely reliably and continue to operate under challenging situations, accidental network disruptions, and equipment failure. To ensure high network availability, network redundancy must be implemented with automatic recovery within milliseconds. In addition, redundant power is required for equipment as backup.. |
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| Strict requirements for substation Ethernet switches |
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Compliant with IEC 61850-3 for a high level of immunity to electromagnetic interference |
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Compliant with IEEE 1613 standards for error-free communications performance under EMI stress
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Rapid network fault recovery and redundant power supplies for higher network availability
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Fanless design enhances the overall reliability of devices
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Extended temperature tolerance is required to withstand climate extremes
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Optical fiber is preferred for immune connectivity and remote transmission |
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| Suitable for Retrofit and Upgrade Projects |
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| Due to the long life span of substation systems, substations are on the lookout for the most reliable components. In response to specific requirements for substations, Moxa has made substation EMI conditions and high network availability two of the main requirements for the design of its line of substation Ethernet switches. |
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Meeting IEC 61850-3 and IEEE 1613 standards for
excellent RFI/EMI immunity |
| Moxa’s PowerTrans series of substation Ethernet switches comply with IEC 61850-3 and IEEE 1613, and are capable of protecting against electrical surges, EMI, and other environmental threats. These proven Ethernet switches also comply with NEMA TS2 for traffic control equipment, in addition to EN50155 and EN 50121-4 standards for railway applications. |
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| Tolerant of temperature extremes |
| To perform flawlessly in climate-uncontrolled utility substations and industrial environments, these rackmount Ethernet switches are designed for completely fanless operation within a wide temperature range of -40 to +85ºC. |
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Maximum availability of ruggedized Ethernet
switches for substations |
| High availability of rugged substation Ethernet switches is required to offer the Ethernet network backbone that all networked IEDs connect to. PowerTrans Ethernet switches feature the highest level of reliability by offering Gigabit Turbo Ring and RSTP/STP (IEEE 802.1W/D) technology) with faster network fault recovery (under 20 milliseconds). Maximum uptime is enhanced by the use of integrated dual redundant power supplies for 24/48 VDC, or 110/220 VDC/VAC, offering maximum assurance and flexibility. |
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| Support for the highest fiber optic port densities |
| Designed to be flexible and expandable, Moxa’s modular PowerTrans series with multiple fiber options (up to 22 fiber ports per switch) is ideal for connecting devices that need to communicate and acquire data from distributed relays, RTUs, PLCs, and IEDs to the central control area. Fiber is available in both single mode and multi mode with multiple connector types (SC, ST, and LC). |
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| Up to 4 gigabit ports and modular flexibility |
| Moxa’s PowerTrans Ethernet switches support up to 24 fast Ethernet ports and four Gigabit Ethernet ports. Two different gigabit modules that can be used to build a fiber optic gigabit backbone are available for copper or fiber connectors, redundant ring, or redundant gigabit uplinks. The modular design gives users a flexible media configuration to fit their specific application, and makes it easier to implement future plant upgrades and expansions. |
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| Moxa's IEC 61850-3 Ethernet Switches |
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