Innovation in Substation Ethernet Networks
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Advantages of Digital Substation & Smart Grid
Digital Substation
• Improved measuring accuracy & performance
•
Increased safety & lower environmental impact
• Improved cost of ownership by elimination of copper wires
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Smart Grid
• Improved reliability & efficiency
• Enabling of renewables & cleantech apps
• Increased consumer engagement

The Drivers – Digital Substation and Smart Distribution Grid
Communication Requirements & Goals
Fully digital high voltage substations and smart distribution grid require robust, reliable, secure and flexible communications infrastructure.
Smart Grid implies replacement of analogue signals, large amount of copper wires and legacy systems by transition to digital data transmission over standard Ethernet and IP communications.
The long term goal is to reduce costs while increasing efficiency by migrating all operational services and mission-critical applications to use a unified all-IP communications network.
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The Challenge - Need for Flexibility in Substation Ethernet Networks
The Challenge
Move the Utility communications network to make digital substations and smart distribution grid real, without:
• Making current operating capital investments obsolete
• A massive investment in new technology, procedures and training
• Expanding physical facilities.
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The Challenge - Evolution Path From the Legacy Environment to the Future
The Solution
Introduce new technology that provides utilities with a simple, cost-effective evolutionary path.
This technology should allow customers to handle higher data rates, adopt new standards and meet new regulatory requirements;
• Gracefully, in a deliberate, controlled manner
• Without massive “forklift upgrades”
• Without battles for rate increases
Solution must be flexible, future-proof, robust, with a low-cost of ownership, high-density and handle gigabit speed.
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Reliability – Extremely Rugged Hardware and Resilient Software
Utility Grade Requirements – a standard of today
• Fully IEC 61850-3 Compliant
• IEEE 1613 Class 2 performance
• No mechanical rotating parts
• Extended operating temperature: -40 to +85 ° C
• High reliability: MTBF > 1,000,000 hours
• High availability: > 99.9999%
• Immunity to extreme EMI
• Immunity to extreme environmental conditions
• Guaranteed Zero-packet-loss
• Cut-through, low latency, bumpless redundancy
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Flexibility – Future-proof, Modular, Field Upgradable, Third-party APPS Ready
Utility Grade Requirements – Recommendation for the future
• Powerful Gigabit cut-through switching fabric
• High density, modular design, field upgradability or/and hot-swappability
• Universal module design to allow increased processing capacity or upgrades to future hardware/software interfaces
• Interchangeability of modules between members of same product platform
• Application processing capability with programming API
• Rich set of legacy interfaces – serial, timing IOs, etc.
• Rich set of L2, L3 protocols and software features
• Embedded cyber security features
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IEEE1588 Precision Time Sync
Precision Time Sync
• IEEE 1588 v2 precision timing protocol over
Ethernet
• Synchronize substation IEDs to sub microsecond accuracy
• Accurate time stamping of system events and data
• Migration strategy by deploying IEEE1588 capable network and doing local conversion to legacy timing protocols such as IRIG-B or PPS
• Critical future applications such as
Synhcrophasors or Process Bus that require precision time sync
Substation LAN
(Ethernet)
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Enhanced Redundancy
High Availability Ethernet: IEC 62439
• Parallel Redundancy Protocol (PRP)
• Guaranteed Zero-Packet-Loss ™ for any single point of failure
• HSR/PRP included in IEC 61850 for mission critical substation networks
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RUGGEDCOM Most Comprehensive Solution
RUGGEDCOM RSG2488
• The RSG2488 is innovation in the field of utility grade switching in a robust, cost-effective 1U form factor.
• The RSG2488 offers
• 28 non-blocking 1Gig ports
• 100M & Gig ports can be mixed (granularity = 2)
• Fiber & copper can be mixed (granularity = 2)
• IEEE1588 (PTP) GM, BC, TC, OC
• Legacy timing IO interfaces (GPS, IRIG-B, PPS)
• Increased Network Availability
• Reduced Sparing Costs
• Minimal Time To Repair
• Lowest Overall Cost Of Ownership
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RUGGEDCOM Most Comprehensive Solution
RX1500 Multi-Service Platform
• Modular Layer 2 and Layer 3 Switch and Router
• Field replaceable modules, hot-swap power supplies
• Interchangeable modules between all different
RX15xx product family
•
High immunity and emissions ratings
• WAN – T1/E1, EVDO, HSPA, Frame Relay, PPP
• Routing – OSPF, BGP, RIP, VRRP, MPLS
• Serial Server – RS232 / 422 / 485
• Application Processing Engine
• Wide selection of port interfaces including M12
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Smart Grid Apps
RUGGEDCOM APE Line Module
• Intel Atom E660 CPU @1.3GHz
• 1GB DDR2 (up to 2GB supported)
• 8GB SATA (up to 16GB supported)
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3 rd Party Applications:
• Utilities
• System Integrators
• Engineering Firms
• Consultants

Conclusions – Innovation to Achieve Flexibility for Utility Communications
• Highly reliable rugged hardware for utility environments
•
Flexible, modular, field upgradable and hot-swap design
•
Security against cyber attack
• System wide time synchronization ( < 1us)
• Superior redundancy with guaranteed zero-packet-loss
• Support for advanced and critical applications (e.g.
Synchrophasors, Process Bus, Teleprotection, Line
Differential)
• Support for IEC 61850, SCADA, DA, AMI and Mobile
Workforce
•
Support for L3 protocols and multiple WAN interfaces
• Support for Legacy interfaces
• Media conversion and protocol translation
•
Application processing engine
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