High-Impedance Bus Differential Protection With the SEL-787Z

Learn more about high-impedance bus differential protection—and how the new SEL-787Z High-Impedance Differential Relay and SEL-HZM High-Impedance Module provide a next-generation solution.

In this webinar, SEL engineers will discuss how high-impedance bus differential protection works and how new features in the SEL-787Z provide improved protection and ease of use.

The webinar covers:

• The hardware benefits of the SEL-787Z over the SEL-587Z, such as an intuitive touchscreen, faster processing, and a built-in bypass contactor to reduce wiring.
• How the SEL-787Z detects internal faults faster than the SEL-587Z.
• The ability of the SEL-787Z to maintain security during in-zone surge arrester conduction.
• Wiring and setting considerations when applying the SEL-787Z for bus differential protection.