The SR469-P5-HI-A20-E is a power protection and control relay produced by GE Multilin, which is described in detail below:

Series and positioning

The SR469 is part of GE Multilin's representative family of multifunctional relays, which are widely used in the protection, monitoring and control of power systems. With its highly integrated functionality, flexible configuration and reliable performance, this relay plays a key role in power systems of all sizes and types.

Key features and functions

Comprehensive protection features

Overcurrent protection: can accurately monitor the size of the current in the circuit, when the current exceeds the preset threshold, quickly trigger the protection action to prevent damage to the electrical equipment due to overcurrent, such as to avoid the transformer due to overcurrent overheating and burning.

Overvoltage/undervoltage protection: Monitors the voltage status in real time. When the voltage exceeds or is lower than the normal working range, take protective measures in time to ensure that the power equipment runs in a safe voltage environment and reduce equipment faults caused by voltage anomalies.

Differential protection: By comparing the current size and phase relationship at both ends of the device, the internal fault of the device can be quickly and accurately detected, such as the short-circuit fault of the transformer winding, to ensure the safe and stable operation of the device

SR469-P5-HI-A20-E Power protection relay Application scenario

Substation: In the substation, SR469-P5-HI-A20-E can be used for the protection and control of transformers, bus bars, lines and other equipment to ensure the safe and stable operation of the substation and ensure the reliable transmission of power.

Industrial power system: widely used in the power system of industrial enterprises, the protection and monitoring of motors, generators, switchgear and other equipment, improve the reliability and safety of industrial production, reduce production disruptions caused by power failures.

Renewable energy power generation: In renewable energy power generation systems such as wind power generation and solar power generation, the relay can be used to protect the connection of power generation equipment and the grid to ensure the effective access and stable transmission of renewable energy.

Common GE SR469 series related models are:

SR469-P5-HI-A20-H: Designed for motor management and control, provides overload, short circuit, and lack of equal protection functions, with advanced motor diagnosis and monitoring functions and flexible configuration options, and uses high-precision current and temperature detection elements to monitor motor operating status in real time.

SR469-P5-HI-A20-E: Has comprehensive protection features to achieve effective protection of equipment such as motors and supports multiple communication protocols for data interaction and control with other systems.

SR469-P5-HI-A20: With basic motor protection and management functions, it can monitor and protect the running condition of the motor, and has certain accuracy and reliability in the measurement and control of electrical parameters.

SR469-P5-LO-A20-E: Used for spare parts of industrial DCS system, plays a role in power system protection and control, and can adapt to certain industrial environment and system requirements.

Sr469-case: A model that may be used as a housing or base frame form of the SR469 series to provide physical support and protection for internal electronic components and functional modules