Teleprotection over IP

Teleprotection channels are required to be fast, reliable, and secure

Solutions

JumboSwitch®'s self-healing ring architecture allows for uninterrupted signal transmission for these critical communications. In addition, our teleprotection cards allow communication channel latency to be monitored in real-time and traced historically, providing the following features/benefits:

  • Allow the protection engineer to calculate latency budget of protection schemes
  • Improved teleprotection performance and monitoring
  • Diagnostic tool to troubleshoot delays and isolate problems
  • Low latency processing clears faults on high and low voltage systems

The JumboSwitch® product line offers interface cards for virtually every teleprotection channel type including G.703, 2W/4W, serial, C37.94 and more. In addition our teleprotection products have been deployed in mission critical industries in some of the harshest environments in North America.

Utilize the JumboSwitch® to seamlessly integrate your primary and secondary protective relays into an existing IP/MPLS network. This solution shows RS-232 and C37.94 interfaces utilized for primary and secondary relays. Our modular design allows you to combine various interface types including C37.94, serial, G.703 and 2W/4W.

Connect RS-232, G.703, C37.94 and 2W/4W protective relays in short and long-haul applications. Convert, regenerate and extend single mode or multimode optical signals up to 80 km.

Case Studies

Tucson Electric Power (TEP) Deploys Teleprotection over Fiber and Microwave

TEP needed a low latency industrial hardened transport solution to connect SEL 311L relays between substations over fiber and microwave.

Australian Power Company Implements Teleprotection over IP/MPLS

An Australian power company upgraded their network to MPLS but had no fiber available for direct transport of teleprotection or C37.94 native interfaces on their MPLS router. The JumboSwitch® passed a variety of latency and operating time tests for 87L LCD protection schemes and was implemented as a solution to connect edge devices to the new MPLS network.

Iowa Utility (NIPCO) Deploys JumboSwitch® Multi-Service Ethernet Platform

Recently, NIPCO simplified its network by putting most of its Ethernet traffic onto a common platform by using TC Communication's JumboSwitch® Multi-Service Ethernet Switch.

TC Communications Hurricane-Proofs Jamaica's Network

Imagine being asked to "hurricane proof" your entire communication network, particularly your SCADA and Teleprotection networks, in less than a year. Such was the situation that the management team at Jamaica Public Service Company Limited (JPS) faced in early 2007 according to Clive Wright, Manager, Electronic & Communication Systems.

Texas New Mexico Power (TNMP) needed to find a temperature hardened platform to transport C37.94 LCD protection schemes from both GE L90 and SEL 411L relays over layer 2/3 networks between substations.

Technology

Many companies rely on a secure and high availability networks powered by stable, uninterrupted electricity. Protective relays utilize critical communication links to isolate faults by sending command signals between substations within microseconds of a failure, preventing failure and severe equipment damage.

Teleprotection channels are required to be fast, reliable and secure. As legacy infrastructure and substation devices migrate to Ethernet and IP networks, some of the industry's main concerns are meeting latency requirements and signal dependability.

Teleprotection operation times are required to be between 5 and 15msec to ensure high voltage system faults are cleared within 100msec. Typical processing delay on the JumboSwitch fiber network is 2-5msec end-to-end.

JumboSwitch's self-healing ring architecture allows for uninterrupted signal transmission for these critical communications. In addition, our teleprotection cards allow communication channel latency to be monitored real-time and traced historically providing the following features/benefits:

  • Allow the protection engineer to calculate latency budget of protection schemes
  • Improved teleprotection performance and monitoring
  • Diagnostic tool to troubleshoot delays and isolate problems