power distribution - Siemens

13SWITCHGEARProtective Relays & SCADA SystemsSIPROTEC Protective RelaysOverviewHigh-performance protective relayingcomes into its own when it’s a questionof minimizing power system operationgcosts.Uncomplicated operation, convenientcommissioning tools and flexiblecommunication are all importantelements when service and maintenancecosts have to be reduced. The SiemensSIPROTEC family with its protectionrelays and bay control units is anintegrated system for medium-voltage toextra-high-voltage applications.Numerical protection systems are nothingnew; after all, Siemens has more than 25years experience in this field. Althoughsystem hardware is still often referred toas protection equipment or units – aswas once the case with analogtechnology – it can now do so muchmore. These relays not only handle faultdetection and location tasks but alsocontrol, metering and monitoringfunctions. And it is these additionalfunctions – impossible before the adventof numerical technology – which offermajor cost-cutting potential.IEC 61850SIPROTEC — the standard for numericalprotective relaying — has establisheditself right across the market. Besides thecommon system platform and the uniqueDIGSI 4 service interface that may beused for all protective devices, it alsosupports the new IEC 61850communication standard. A potential thatoffers more efficiency, easily andconveniently. With SIPROTEC relays andbay control units from Siemens we offerall the advantages of an expert andinnovative partner in the field ofprotective relaying and substationautomation. We bring you attractivelypriced intelligent solutions by payingparticular attention to lowering your lifecycle and system management costs.These solutions are the first onesavailable on the market with theinternational IEC 61850 standard. Toenable you to profit from theseadvantages as quickly as possible,Siemens collaborated in the preparationof this international standard and madeevery effort to ensure no time was lost inbringing it out. The result is certainlyworth a look, because SIPROTEC andGeneralother Power Automation products andSiemens systems are available on thebasis of the IEC 61850 standard and caneven be retrofitted in systems suppliedsince 1998.System advantages▪ One bay, one unitThe SIPROTEC 4 relay family offers fullyintegrated protection, control, monitoring,and automation functions incorporated ina single device. For many applications,this product contains all the functions youneed to meet all your protection andcontrol requirements with just one unitper bay, saving on investment andinstallation costs and enhancingavailability.▪ DIGSI 4 – one tool for all tasks andproductsDIGSI 4 is a computer program designedfor all SIPROTEC relays. DIGSI 4 offersusers a universal tool for all support tasksfrom setting and commissioning ofdevices to simple analysis anddocumentation of system faults. Ourpowerful analysis tool speeds up troubleshootingand supplies important serviceinformation.For more information, please visit http://automation.usa.siemens.com/consultant/ or contact your local sales office.13-26Siemens Power Distribution & Control, SPEEDFAX 2007-2008 Product Catalog