Description
The Woodward XRI1E1R1 Digital Multifunction Relay is a numerical protection relay designed for time overcurrent and electrical system protection applications. It provides monitoring and protection functions for generators, motors, transformers, electrical machines, and medium-voltage distribution networks.
The XRI1E1R1 belongs to the Woodward Professional Line relay family and combines digital measurement processing, configurable overcurrent protection characteristics, fault recording, LED indication, and communication capabilities in a compact protection device. It supports both definite-time and inverse-time overcurrent protection functions according to selectable characteristics.
XRI1E1R1
Product Specifications
| Parameter | Description |
|---|---|
| Brand | WOODWARD |
| Model | XRI1E1R1 |
| Series | Professional Line Digital Protection Relay |
| Product Name | Digital Multifunction Relay for Time Overcurrent Protection |
| Product Type | Numerical Protection Relay |
| Function | Time overcurrent protection, current monitoring, fault detection, relay control |
| Protection Functions | Definite-time overcurrent, inverse-time overcurrent, high-set overcurrent protection |
| Measuring Inputs | Phase current and earth current measurement inputs (configuration dependent) |
| Protection Characteristic | Normal Inverse / Very Inverse / Extremely Inverse selectable |
| Display | Digital display for settings, measured values, and fault information |
| LED Indicators | Phase fault and protection status indication |
| Communication Interface | RS485 serial communication with Woodward protocol / Modbus options |
| Fault Recording | Stores trip values and shutdown information |
| Mounting Type | Panel / switchgear mounting |
| Application | Generator protection, motor protection, electrical distribution systems |
| Operating Environment | Industrial power system environment |
| Place of Manufacture / Origin | Germany |
| Product Status | Legacy Industrial Protection Relay |
| Condition | New / Surplus |
| Dimensions | Standard protective relay housing |
| Weight | Approx. 1–2 kg |
| Country of Origin | Germany |
| Power Requirements | Industrial auxiliary supply |
Key Features
✅ Woodward digital multifunction protection relay
✅ Provides reliable time overcurrent protection
✅ Supports phase and earth fault monitoring
✅ Selectable inverse-time protection curves
✅ Digital measurement and fault data display
✅ RS485 communication capability
✅ Suitable for generator and industrial power protection systems
Applications
• Generator protection systems
• Motor protection panels
• Medium-voltage switchgear
• Industrial power distribution systems
• Power plant auxiliary systems
• Marine generator electrical protection
• Transformer and feeder protection applications
Frequently Asked Questions
❓ Q: What is the Woodward XRI1E1R1 used for?
A: The XRI1E1R1 is a digital multifunction protection relay used for time overcurrent protection and electrical fault monitoring in power systems.
❓ Q: Is the XRI1E1R1 a PLC module?
A: No. It is a dedicated electrical protection relay designed to monitor current conditions and provide protective trip outputs.
❓ Q: What protection functions does the XRI1E1R1 provide?
A: It provides selectable definite-time and inverse-time overcurrent protection, high-set overcurrent protection, measurement display, and fault recording functions.
❓ Q: Does the XRI1E1R1 support communication?
A: Yes. The XRI1 series supports serial data exchange through RS485 communication using Woodward protocols and Modbus options depending on configuration.
❓ Q: Where is the Woodward XRI1E1R1 installed?
A: It is typically installed in generator switchboards, protection panels, motor control centers, and industrial electrical cabinets.
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