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Voltage Security Assessment Tool

VSATTM is a highly automated steady-state analysis tool designed for comprehensive voltage security assessment. VSAT includes flexible specification of voltage security criteria and is designed to handle a large number of contingencies, power transfers, and scenarios.


Screenshot
Applications
  • Reactive power planning studies
  • Operational planning studies (security limit assessment)
  • On-line voltage security assessment
  • Any analysis involving,
    Assessment of thermal overloads
    Determination of voltage security limits
    Evaluation of required voltage stability margins
    Transfer limits (ATC & TTC)


Screenshot
Features
  • Computation of transfer limits and voltage stability margins (PV curves and VQ curves)
  • Flexible security criteria specification including,
    Voltage stability (PV) margin
    Voltage high/low and rise/decline limits
    Reactive reserves
    Thermal overloads
  • Extensive and flexible transfer specification options
  • Efficient and robust screening of large number of contingencies for voltage stability
  • Modal analysis for determination of location and mode of voltage instability
  • Remedial action computation for preventative and corrective control
  • Comprehensive and summary reports
  • Distributed processing for scalable performance
  • Support of various commercial powerflow formats
  • Easy-to-use graphical interface for data setup, program operation, and output analysis
  • Suitable for off-line (system planning) and on-line applications ...more on on-line application

View Full VSAT Brochure