Woodward 8441-1138 MultiFunction Relay Module

The Woodward 8441-1138 MultiFunction Relay Module is a high-performance control device designed to provide flexible protection, monitoring, and automation capabilities in power generation and distribution systems. Engineered for industrial and utility applications, this module integrates advanced relay functions into a single compact unit, supporting protective relays, control logic, and communication interfaces.

The module is designed to simplify complex system architectures by combining multiple relay functions into one device, reducing wiring complexity and improving system efficiency. With robust hardware design and advanced software algorithms, the 8441-1138 ensures accurate detection of electrical conditions, reliable actuation of control signals, and seamless integration into supervisory control systems.

Its rugged industrial construction makes it suitable for harsh environments, while its modular architecture supports flexible configuration for diverse system requirements.

Product Specifications

Applications

The Woodward 8441-1138 MultiFunction Relay Module is widely applied in electrical systems requiring comprehensive relay-based monitoring and protection:

• Power Plants – Provides generator, transformer, and feeder protection.

• Industrial Facilities – Protects motors, switchgear, and distribution systems.

• Oil & Gas Operations – Ensures stable operation of electrical power networks on offshore rigs and refineries.

• Marine Industry – Delivers reliable relay functions for shipboard electrical systems.

• Renewable Energy Systems – Supports wind, solar, and hybrid power plants with grid protection.

• Critical Infrastructure – Used in hospitals, data centers, and utilities for secure electrical protection.

Advantages

• Integrated Relay Functions – Combines multiple protective relays into one compact unit.

• High Accuracy – Provides precise monitoring and detection for critical systems.

• Flexible Configuration – Supports programmable logic and customizable control sequences.

• Enhanced Communication – Built-in digital I/O and Modbus/RS-485 interfaces for supervisory systems.

• Rugged Design – Resistant to environmental stress, vibration, and electrical noise.

• Reduced Complexity – Minimizes wiring and simplifies system design.

• Improved Reliability – Ensures consistent relay response during abnormal conditions.

• Scalable Architecture – Adaptable for small-scale to large-scale power system protection.

FAQ

1. What relay functions are included in the 8441-1138 module?

   It supports overcurrent, undervoltage, frequency, phase, and synchronization relay functions.

2. Does the module support communication with SCADA systems?

   Yes, it provides RS-485 and Modbus interfaces for supervisory integration.

3. Can the relay logic be customized for different applications?

   Yes, it offers programmable logic and configurable control sequences.

4. How does the module protect against electrical noise and surges?

   It includes isolation, surge protection, and filtering circuits.

5. What is the monitoring accuracy of this device?

   It achieves ±0.5% accuracy in measurement and detection.

6. Can it be integrated into both industrial and utility systems?

   Yes, it is suitable for both industrial facilities and large utility networks.

7. Does the 8441-1138 support frequency and phase monitoring?

   Yes, it provides precise frequency and phase detection for system protection.

8. What type of mounting options are available for installation?

   It can be rack-mounted or panel-mounted within electrical control cabinets.

9. Is this module suitable for renewable energy applications?

   Yes, it supports solar, wind, and hybrid grid protection functions.

10. How does the relay module handle critical fault conditions?

    It provides fast detection and actuation of protection signals to prevent equipment damage.