SCADA SCADA Communication & Communication &

ControlsControls

John TealeJohn Teale

Menasha UtilitiesMenasha Utilities

SCADA System UpgradeSCADA System Upgrade

Overview of MU’s previous SCADA Overview of MU’s previous SCADA SystemSystem

Upgrade: Our New SCADA SystemUpgrade: Our New SCADA System Advantages/DisadvantagesAdvantages/Disadvantages

Electronic Relay UpgradeElectronic Relay Upgrade

MU’s Previous SCADA MU’s Previous SCADA SystemSystem

MU shared a SCADA System in early MU shared a SCADA System in early 1990’s1990’s Unix Based, Proprietary SystemUnix Based, Proprietary System Communication lines and speedCommunication lines and speed

(6) - Bridge Circuits – 1200 baud : Reliability(6) - Bridge Circuits – 1200 baud : Reliability Telemetry/Discrete Telemetry/Discrete Control of Devices (Breakers/Reclosers)Control of Devices (Breakers/Reclosers)

Upgrade Existing Upgrade Existing System?System?

New ServersNew Servers HP – Unix Based Servers – CostlyHP – Unix Based Servers – Costly Proprietary SystemProprietary System

New Substation AdditionNew Substation Addition Upgrade existing Substation RTU’sUpgrade existing Substation RTU’s No Upgrade to Existing Protection No Upgrade to Existing Protection

RelaysRelays

New SCADA System’s of New SCADA System’s of TodayToday

Windows Based SystemsWindows Based Systems Open Architecture Open Architecture

Use of Electronic RelaysUse of Electronic Relays Protection Protection Communication GatewaysCommunication Gateways

Communications TypesCommunications Types – – Fiber/Radio/WirelessFiber/Radio/Wireless

MU’s MU’s New SCADA SystemNew SCADA System

Operate/Maintain our own SCADA System Operate/Maintain our own SCADA System Master StationMaster Station

Windows Based ServersWindows Based Servers Software: Wonderware - InTouch - Terminal ServicesSoftware: Wonderware - InTouch - Terminal Services MS SQL Server - HistorianMS SQL Server - Historian

Use our Existing Fiber Optic Network for Use our Existing Fiber Optic Network for CommunicationsCommunications

Extend our LAN Network to Each SubstationExtend our LAN Network to Each Substation Upgrade the Electro-Mechanical Protection Upgrade the Electro-Mechanical Protection

Relays to Electronic RelaysRelays to Electronic Relays Cost Payback in Approximately 4+ yearsCost Payback in Approximately 4+ years

SoftwareSoftware

Wonderware – InTouch – Terminal Wonderware – InTouch – Terminal ServicesServices AdvantagesAdvantages

Windows Based Windows Based Support of Local Integrators and Local Support of Local Integrators and Local

Wonderware VendorWonderware Vendor Communications: DNP 3.0, Modbus, SEL, Etc.Communications: DNP 3.0, Modbus, SEL, Etc.

DisadvantagesDisadvantages Must Build Application From ScratchMust Build Application From Scratch Must provide all Interlocks and System ProtectionMust provide all Interlocks and System Protection

Substation UpgradeSubstation Upgrade

New SubstationNew Substation Implemented with Electronic RelaysImplemented with Electronic Relays

SEL-351, 351A Protection RelaysSEL-351, 351A Protection Relays Communication Processor Communication Processor

SEL-2030SEL-2030 Replaced the RTUReplaced the RTU

Substation Upgrade Substation Upgrade ContinuedContinued

Communications – Fiber OpticsCommunications – Fiber Optics Extended LAN via Media ConvertersExtended LAN via Media Converters SEL-2890 Ethernet Transceiver SEL-2890 Ethernet Transceiver Remote Monitoring of GE Electronic Relays Remote Monitoring of GE Electronic Relays

via Fibervia Fiber

Site ImplementationSite Implementation

Using SEL-351 Relays connected to Using SEL-351 Relays connected to SEL-2030 Comm. ProcessorSEL-2030 Comm. Processor SEL IO Server Driver used to acquire SEL IO Server Driver used to acquire

Data from the SEL-2030 to Data from the SEL-2030 to Wonderware’s InTouchWonderware’s InTouch

SEL-2030 Programmed to acquire Data SEL-2030 Programmed to acquire Data as asked for in the User Regionas asked for in the User Region

Control for Breakers/Recloser can be Control for Breakers/Recloser can be done using the Electronic Relay or a done using the Electronic Relay or a Remote I/O Module (SEL-2505/2506)Remote I/O Module (SEL-2505/2506)

Communications:Communications: Speed – 19.2 kbps (SEL-2030 to SEL-Speed – 19.2 kbps (SEL-2030 to SEL-

Relays)Relays) Update Speed on InTouch Set to 1-3 Update Speed on InTouch Set to 1-3

SecondsSeconds Breaker operation: Very Fast (Almost Breaker operation: Very Fast (Almost

Instantaneous)Instantaneous)

Control and Monitoring Control and Monitoring Using Electronic RelaysUsing Electronic Relays

Performed by the Microprocessor Performed by the Microprocessor RelaysRelays Responsible for Tripping and Closing Responsible for Tripping and Closing

Breakers or other DevicesBreakers or other Devices Status of Breakers Status of Breakers Analog Data is measuredAnalog Data is measured

Demand, Energy, Voltage, Current, MW and Demand, Energy, Voltage, Current, MW and MVARMVAR

Sequential Events RecorderSequential Events Recorder Fault LocationFault Location

Other UsesOther Uses

Electric Distribution uses it to Load Electric Distribution uses it to Load Balance CircuitsBalance Circuits

Data SharingData Sharing Other Control MethodsOther Control Methods