Advances in sensing, communication and computing have potential to refine, or even redefine the conception and implementation of Power System Protection. Increased computing power at low cost has provided opportunities to implement more computation-intensive methods/algorithms in real time. At the same time, Phasor Measurement Units (PMUs) providing faster and diverse synchronized measurements over a wide area, and new communication options have also emerged. These advances have the potential to be enablers of new paradigms in Protection. Due to availability of system wide high quality high volume data in real time, improved System Integrity Protection Schemes (SIPS) and adaptive protection have become possible. Big Data analytics have the potential to detect and locate events, analyze system integrity, and take corrective action for more reliable protection. At the same time, processing and communication delays, bad data, and cyber attacks pose challenges to security as well as dependability of protection. Novel protection methods using advanced computing are promising, but should not compromise the clarity and simplicity of the underlying system models and concepts. This specialissue is aimed at stimulating forward-looking and transformative ideas and methods that can lead to significant advances in Power System Protection. Papers related but not limited to the broad list of topics listed below are solicited.

Advancing the State of the Art in Power System Protection:
·       System Integrity Protection Schemes based on Wide Area measurement and analysis.
·       Use of Wide Area Measurement to augment/supervise local protection.
·       Protection based on real time evaluation of transient stability.
·       Adaptive protection and protection schemes.
·       Non-conventional sensors for enhanced protection.
·       Modeling of relays, relaying systems, and instrument transformers.
·       Localization of high impedance faults in distribution systems.