Relay Subcommittee Relay Subcommittee (RS) ensures that all PJM bulk power electrical equipment is adequately protected. The RS focuses on all matters related to the application, design, performance, testing and operation of relay systems and associated equipment on the interconnected bulk power system of PJM member companies. This committee reports to the Planning Committee. RS Workplace - meeting materials and registration Chair: Sam Thorpe, Duke Energy Secretary: Mark Kuras During the meeting, if you are experiencing issues with connectivity or teleconference, please contact Meeting Support. For registration issues, contact PJM. Roster PDF | Roster Update Requests Date Charter PDF 11.27.2019 Protective Relaying Philosophy & Design Guidelines PDF 9.24.2018