Woodward 8440-2047 Protective Relay

Description

Woodward 8440-2047 Protective Relay

Product Dimensions：

Woodward is a globally recognized leader in the design and manufacture of control system solutions. Their Protective Relay line (often marketed under the High Tech Line or M-Line) is specifically engineered for the protection of power generation and distribution systems.

1. Product Detailed Description

Woodward protective relays are intelligent electronic devices (IEDs) designed to monitor electrical parameters (voltage, current, frequency) and provide rapid disconnection in the event of a fault.

The product range covers everything from simple single-function relays to sophisticated, multifunctional devices. Most modern Woodward relays feature:

• Microprocessor-based logic for precise trip curves.

• Communication protocols (Modbus RTU, Profibus, or IEC 61850) for SCADA integration.

• Integrated Display/HMI for local monitoring and parameterization.

2. Key Product Parameters

While specific parameters vary by model (e.g., MRI4, MCA4, MFR series), the general technical specifications include:

3. Product Advantages

• High Reliability: Built to withstand harsh industrial environments and high electromagnetic interference (EMI).

• Precision: Utilizing advanced algorithms to ensure selective tripping (only the faulted part of the circuit is isolated).

• User-Friendly Software: The SmartVision software allows for easy configuration, fault analysis, and firmware updates.

• Compact Design: High functional density saves space in control cabinets.

• Global Compliance: Meets international standards such as CE, UL, CSA, and EAC.

4. Safety and Installation Precautions

• CT Shorting: Always ensure Current Transformers (CTs) are shorted before disconnecting the relay to prevent high-voltage spikes.

• Firmware Compatibility: Ensure the configuration software version matches the relay firmware to avoid communication errors.

• Environmental Protection: Avoid installing in areas with excessive moisture or corrosive gases unless housed in an appropriately rated enclosure.

• Wiring Check: Verify that the auxiliary power supply matches the label on the device before powering up.

5. Product Applications

Woodward protective relays are widely used in sectors requiring high-availability power:

• Generator Protection: Protection against over-excitation, reverse power, and loss of field.

• Transformer Protection: Differential protection and overcurrent monitoring.

• Feeder/Distribution: Protecting medium-voltage lines in industrial grids.

• Mains Decoupling: Used in renewable energy sites (wind/solar) to disconnect from the grid during instability (ROCOF, Vector Shift).

• Motor Protection: Safeguarding large industrial motors from stalls, phase imbalance, and overheating.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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