Learn About High-Impedance Voltage Differential Schemes for Bus Protection
In this video, part of our Power System Protection: Busbar Protection course, we discuss how the high-impedance voltage differential (87V) scheme works. This scheme can be found in protective relays such as the SEL-587Z and is one of the most common forms of busbar protection in substations.
See the Full CourseSubstation Bus Protection
In this course, we discuss substation bus protection in detail, so that you can implement your own protection schemes
Differential Schemes
Throughout this course, we discuss the two most commonly used protection schemes for substation bus protection (low-impedance current differential and high-impedance voltage differential)
SEL-487B Relay Example
After discussing the different protection schemes, we will develop settings for an SEL-487B protective relay using an example substation
