ES-81O, Overfrequency Relay
The ES-81O Overfrequency Relay is a microprocessor-based protection relay designed to provide reliable frequency monitoring and overfrequency protection for electrical power systems.
The ES-81O Overfrequency Relay is a microprocessor-based protection relay designed to provide reliable frequency monitoring and overfrequency protection for electrical power systems.
The ES-81O/U Over/Underfrequency Relay is a microprocessor-based protection relay designed to provide comprehensive frequency monitoring and protection for electrical power systems.
The ES-81U Underfrequency Relay is a microprocessor-based protection relay designed to provide reliable frequency monitoring and underfrequency protection for electrical power systems.
The ES-55 Power Factor Relay is a microprocessor-based protection relay designed to monitor power factor and protect synchronous motors from damaging operating conditions.
The ES-51 Overcurrent Relay is a microprocessor-based protection relay designed to provide accurate current monitoring and reliable overcurrent protection for electrical power systems.
The ES-59 Overvoltage Relay is a microprocessor-based protective relay designed to provide accurate voltage monitoring and reliable overvoltage protection for electrical power systems.
The ES-49 Temperature Relay is a microprocessor-based protection relay designed to monitor remote temperatures using resistance temperature detectors (RTDs).
The ES-47N/27 Phase Balance/Undervoltage Relay is a microprocessor-based protective relay designed to monitor three-phase power systems for voltage imbalance and undervoltage conditions.