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    HMI/SCADA/Energy Management Systems

    Robust and Reliable SCADA/HMI and Energy Management Systems

    Electric Utilities

    SEL designs, develops, tests, and deploys complete SCADA systems to monitor and control your systems or processes. We have experience providing various system sizes, ranging from simple standalone to complex networked systems.

    We design SCADA systems to assist with outage management, asset optimization, just-in-time (JIT) maintenance, load shedding, load restoration, access control, cybersecurity, and more.

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    Application-Specific Solutions

    Select from multiple designs for outage management, asset optimization, JIT maintenance, load shedding, load restoration, access control, cybersecurity, and more. Examples include:

    • Master and local substation human-machine interfaces (HMIs)
    • Station- and system-wide Sequential Events Recorder (SER)
    • System-wide relay event retrieval
    • Master SCADA server redundancy
    • Remote access
    • Enterprise and local power system report managers

    All-in-One Solution

    Request a SCADA system that works with new and legacy equipment. SEL engineers work with operations requirements, preferred SCADA software, and existing equipment to create an economical, high-quality system.

    Example HMI Screens

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    Real-Time Automation Controller One-Line Overview Diagram

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    System Components

    Typical System Features

    • Master and local substation HMIs
    • Protection data network
    • Station- and system-wide Sequential Events Recorder (SER)
    • System-wide relay event retrieval
    • Synchrophasor data collection
    • Master SCADA server redundancy
    • Remote access
    • Fast response to HMI control outputs
    • 1 ms SER resolution
    • Self-testing
    • Time synchronization
    • IED polling
    • Enterprise and local power system report manager
    • Industry-standard protocols

    HMI Design and Programming

    SEL programs HMIs to monitor the health of communications lines and logic controllers and to summarize power system data (MW, MVAR, voltage, and current). HMIs include the following:

    • Calculation scripting
    • Clearance tags
    • Security
    • Screen header/menu
    • Scrolling alarm bar
    • One-line display
    • Breaker and relay control
    • Tag application screen
    • Communications screen
    • Alarm summary screen
    • Alarm history screen