Efficient and comprehensive assessments along several protection dimensions to maintain performance awareness and demonstrate regulatory compliance. Network operators seek to ensure protection systems prevent and abate catastrophic outages and cascading events. To this end, regulatory requirements imposed on protection departments within transmission and generation utilities are anticipated to increase. The systematic detailed assessment supported to challenge the protection system and determine vulnerabilities include; Confirming proper coordination of generating unit facility voltage regulating controls, limit functions, equipment capabilities and protection system settings. Transmission line loadability studies testing load-responsive protection elements for encroachments under credible contingency scenarios. Voltage, frequency and volts-per-hertz protective devices operation remaining outside the boundary regions defined by regulators. Generator relay loadability based on realistic overload criteria determine from generator real power and reactive power capabilities, voltage level and plant internal impedances. Impedance and overcurrent based protection reliability under stable power swing conditions using power swing stability boundary for impedance-based elements and maximum system current for phase overcurrent devices. Identification of critical areas of coordination reevaluation through comparisons between current and historical fault levels. Automated coordination studies of the part of the system under review with output management capabilities to slice and dice at different levels of consolidation a relay protection simulation software package to assist with meeting these requirements and help utilities understand the reliability of their protection system.   Contact us for more information on how we can help. Learn more about how we conducted Protection System Compliance Assessments.