The MRI4 is a feeder protection relay that provides precise and reliable protective functions and is very easy to operate. The MRI4 provides a number of three phase protection elements to safeguard against overcurrent, short-circuit and earth fault, all with inverse time (INV) and definite time (DEFT) tripping characteristics.

The MRI4 is also ideal for the protection of isolated, resonant, resistive and solidly earthed neutral systems. It is designed to be used in both radial networks and single fed open ring main systems. It can also serve as backup protection for differential protection systems on generators, transformers, bus bars and electrical lines. For overhead line protection the MRI4 is also available with an optional auto reclosing function. The protection functions of the MRI4 have been adapted to comply with the requirements of the VDE AR N 4110:2018.
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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 MRI4-2A0AAA Protection 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 LINEThe 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 LINEThese modular relays combine well-proven technology with easy handling. PROFESSIONAL LINEComprehensive protective functions and competitive performance ratio are the hallmark of these relays.To explore protection functions and comprehensive series of Woodward devices, click here!