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ETAP Star - Device Coordination & Selectivity


ETAP Star device protection and coordination program provides an intuitive and logical approach to time-overcurrent analysis with features and capabilities such as fully integrated user-interface, true-to-the-form protective devices modeling, extensive validated and verified device library, embedded analysis modules, and rule-based designed. Star's sequence-of-operation evaluates, verifies, and confirms the operation and selectivity of the protective devices for various types of fault for any location right from the system one-line diagram.

Coordination & Selectivity
  • AC & DC coordination
  • Graphically adjustable device settings
  • Extensive device library (verified & validated)
  • Embedded short circuit analysis
  • Embedded motor acceleration analysis
  • Integrated with one-line diagram
  • Multi-axis time current curves
  • Comprehensive plot options
  • Adjustable magnifying-glass zoom view
  • Time difference calculator
  • Multi-function/level relays
  • Device setting reports
Sequence-of-Operation
  • View device operation sequence graphically
  • Device failure & backup operation
  • Sequence viewer
  • Normalized (shifted) curves
  • Relay actions (27, 49, 50, 51, 51V, 59, 67, 79, 87)
Relay Test Set Interface
  • Plot device steady-state response
  • Compare relay response with manufacturer published data
  • Display relay actual transient response
  • Analyze relay false trips & mis-operation
Capabilities
  • Generator decrement curve
  • Graphical animation of protective device operation
  • Multiple motor starting curves based on starting voltage
  • Motor stator damage curve
  • Batch print TCC plots & diagrams for various paper sizes
  • Automated color sequencing of curves
  • Flexible user-definable display & plot options
  • Intelligent alert view for troubleshooting
  • Acceleration curve for overload relays
  • Extensive damage curve (fixed points) modeling & plotting
  • Virtual animation of sequence-of-operation playback on the one-line diagram
  • Graphical TCC curve tracker with cross lines & time difference tools
Benefits
  • Enables system engineers to easily & efficiently perform protective device coordination studies
  • Provide an accurate and realistic operating characteristic, time, and state of protective devices
  • Offers insight into troubleshooting false trips, relay mis-operation, and mis-coordination
  • Aids system engineers & planners to quickly realize possible design issues & make informed decisions
Sequence-of-Operation
With ETAP Star, not only can you work with the time-current curves, you can also determine the operating time of protective devices simply by placing a fault on the one-line diagram.
 
Coordinate via One-Line Diagram
  • Graphically place a fault anywhere on the one-line diagram.
  • Automatically calculate & display the fault current contributions on the one-line diagram.
  • Determine the operating time & state of all protective devices based on the actual fault current contribution flowing through each individual device.
  • Globally view post fault actions & associated operating time via a tabulated Event Viewer.
  • Graphically examine the operation of protective devices via the one-line diagram.

Drag & Drop a Fault

One Action Resulting in a
Complete Solution

  • 3-Phase & Ground Faults
  • Display Fault Currents on the
    One-Line Diagram
  • Illustrate System Wide Coordination
  • Tabulate Operating Times via an Event Viewer
  • Customizable Reports
 
Extensive Protective Device Library
  • Most comprehensive & up-to-date protective device information
  • Validate & verified libraries using published manufacturer data
  • User-definable libraries - easily create & add new devices
  • Digitalization points & equation based relays
  • True-to-the-form modeling of protective devices
  • Legacy as well as state-of-the-art device manufacturer models
  • Library edited-by & checked-by capabilities