Protective Device
Coordination Software

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Protective Device Types


Protective Device Coordination ETAP Star Protective Device Handling
Protective Device Handling
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ETAP Star overcurrent device protection and coordination evaluation software provides the ability to model many different types of protective devices, e.g. fuses, relays, reclosers, low voltage breakers and trip units. Allowing for accurate presentation on the system one-line diagram and Time-Current Characteristic (TCC) curve.

Our extensive protective device library includes fuses, relays, reclosers, low voltage breakers and trip units from many manufacturers. All devices in our library have gone through our validation & verification process, ensuring their accuracy to the manufacturer published data. Device libraries are user-customizable through an easy to understand graphical user interface.


Protective Device Handling Key Features


  • Comprehensive Verified & Validated protective device library
  • User customizable protective device library
  • Overcurrent and Overload Relays

    • Phase overcurrent (51/50) modeling
    • Ground overcurrent (51G/50G) modeling
    • Phase and Ground Directional (67) modeling
    • High impedance & percentage differential relay (87)
    • Detailed implementation of voltage restraint & control relay (51V)
    • Thermal Overload relay - CT based & inline relays (49)
    • Assignable relay interlocks for switching device operation
    • Current summation (parallel CT) connection capability
    • Protective Device Coordination ETAP Star Motor Protection
    Motor Protection
  • Low Voltage Breaker and Trip Unit

    • ANSI & IEC standards
    • AC and DC system types
    • Molded Case, Power CB, and Insulated Case types
    • Thermal Magnetic trip units
    • Low Voltage Solid State Trip device units
    • Motor Circuit Protectors
    • Electro-Mechanical trip units
    • Maintenance mode
    • Curve-based long time and short time band plotting
  • Fuse

    • ANSI & IEC standards
    • AC and DC system types
  • Comprehensive modeling of electronic & hydraulic reclosers (79)
  • Overload heaters
  • ANSI & IEC High Voltage Breakers
  • Contactors and Switches