The MRA4 is a high precision and reliable protection and control relay for feeder, grid and generator applications. The intuitive setting concept with plausibility test enables reliable and time optimized configuration of the extensive protection function to a variety of applications such as incoming or outgoing feeder protection, network protection and generator protection.

The implemented switchgear management guaranties an efficient and safe control and supervision. The device is a bench mark in flexibility and usability and offers various communication options. The hardware is designed for all nominal values in combination with protection and control functionality. The parameterizing and analyzing software Smart view SE is usable for each HighPROTEC device and free of charge.
Woodward is an independent designer, manufacturer, and service provider of control solutions for the aerospace and industrial markets. Our aerospace systems and components optimize the performance of fixed wing and rotorcraft platforms in commercial, business and military aircraft, ground vehicles and other equipment.

Its industrial related systems and components enhance the performance of industrial gas and steam turbines, reciprocating engines, compressors, wind turbines, electrical grids and other energy related industrial equipments. The company’s innovative fluid energy, combustion control, electrical energy, and motion control systems help customers offer cleaner, more reliable and more efficient equipment. Our customers include leading original equipment manufacturers and end users of their products.

Woodward MRA4-2A0AAA MRA4 relay : Feeder Protection

From the generation via transmission and distribution down to the load, Woodward’s feeder protection relays protect the entire power chain throughout different voltage levels.

Modern communication and linking to systems are the basis for economical and efficient applications of your operating components. For nearly every communication network Woodward offers you various protocols like Modbus® RTU and Modbus® TCP, Profibus® DP, IEC 60870-5-103 and IEC 61850.

Woodward’s easy-to-use feeder protection relays work safely and precisely, and are well-proven in the fields of utilities, industrial, and other power systems. They are thoroughly designed and engineered to maximize the availability of your power distribution system.

The following product lines offer the right Feeder Protection products to you.

HIGHPROTEC LINE

The new HighPROTEC line is the latest generation of complete protection for medium-voltage power systems.

Learn more about HighPROTEC Feeder Protection Devices:

MCA4 | MRA4 | MRI4

HIGH TECH LINE

These modular relays combine well-proven technology with easy handling.

PROFESSIONAL LINE

Comprehensive protective functions and competitive performance ratio are the hallmark of these relays.

To explore protection functions and comprehensive series of Woodward devices, click here!