Woodward BU1AC230 Relay

Description

Woodward BU1AC230 Relay

Product Dimensions：

Woodward is a global leader in the design and manufacture of control solutions for the energy and aerospace markets. Their relay products—specifically the High Tech Line and Professional Line—are renowned for their reliability in protecting power distribution systems.

Below is a detailed overview of Woodward relays (focusing on their popular multipurpose protection series).

1. Product Description

Woodward protection relays are intelligent electronic devices (IEDs) designed to monitor electrical parameters such as voltage, current, frequency, and phase. They provide comprehensive protection for generators, transformers, motors, and mains decoupling applications.

The most common series include:

• High Tech Line: High-end, modular relays with extensive communication and diagnostic capabilities.

• Professional Line: Compact, DIN-rail mounted relays focused on specific protection functions.

2. Key Product Parameters (Typical)

While specifications vary by model (e.g., MRU4, MCA4, MFR series), here are the standard technical benchmarks:

3. Product Advantages

• Precision & Reliability: Advanced algorithms ensure high-speed tripping (typically < 30ms) to minimize equipment damage.

• Modular Design: Allows for easy hardware expansion and software updates without replacing the entire unit.

• User-Friendly Interface: Large displays and intuitive navigation keys allow for local configuration without a PC.

• Robust Diagnostics: Built-in “Fault Recorders” capture waveform data during an event, making post-incident analysis easy.

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

4. Key Applications

Woodward relays are utilized in environments where power stability is critical:

• Generator Protection: Monitoring for overcurrent, earth faults, and reverse power in backup power systems.

• Mains Decoupling: Used in renewable energy sites (Wind/Solar) to disconnect from the grid during instability (Vector shift, ROCOF).

• Motor Protection: Safeguarding large industrial motors against thermal overload and phase unbalance.

• Transformer Protection: Differential protection to detect internal faults.

• Microgrids: Managing the synchronization and load sharing between various power sources.

5. Important Considerations & Precautions

• Firmware Compatibility: Ensure the “Smart view” software version matches the relay’s firmware for configuration.

• CT/VT Polarities: Correct wiring of Current Transformers (CT) and Voltage Transformers (VT) is essential; incorrect polarity can lead to false tripping or failure to trip.

• Environmental Protection: While the front is IP54, the rear terminals must be protected from conductive dust and high humidity.

• Regular Testing: Use a secondary injection test set annually to verify that the relay’s trip logic and output contacts are functioning correctly.

• Auxiliary Power: Always ensure the auxiliary power supply is within the rated range to prevent internal component fatigue.

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

Please make an inquiry for more models：