Protections of High and Medium Voltage Substations - Digital Protective Relays For more details about the course content, duration, cost or any other info you may need, please contact us by filing in the below form. Ask us Course information Course Code 103.04 Course Title Protections of High and Medium Voltage Substations - Digital Protective Relays Course Duration 24 Are you interested in? Ask us Scheduled Courses No scheduled course for this semester.