The Woodward 8444-1019 Rev F is a high-precision UMT1 Universal Measuring Transducer designed for power system monitoring and protection. This industrial-grade module serves as a critical bridge between high-voltage power lines and low-voltage control systems, converting AC electrical parameters into standardized analog or digital signals. The 8444-1019 is engineered to provide fast, linear, and accurate measurements of voltage, current, power, and frequency, ensuring that the main engine or turbine control unit receives high-fidelity data for load management and synchronization.

 

Product Parameters

The UMT1 8444-1019 is built for high-density signal conditioning and galvanic isolation.

 

Technical Description

The Woodward UMT1 utilizes a high-speed digital signal processor (DSP) to calculate True RMS values for complex waveforms with high harmonic content. The 8444-1019 model provides full 3-way galvanic isolation between the measurement inputs, the power supply, and the output signals, protecting sensitive PLC or DCS hardware from line surges. The Rev F iteration features improved thermal stability and a wider frequency tracking range (40–70 Hz), making it suitable for both 50Hz and 60Hz grids. Configuration is performed via the front serial interface using Woodward’s service tools to map specific electrical variables to the analog output channels.

 

Country of Origin

This measuring transducer is designed and manufactured in Germany by Woodward GmbH, complying with global CE, UL, and marine certification standards for power plant instrumentation.

Application Fields

The 8444-1019 F is widely utilized in the following power and automation sectors:

• Power Plants: Measuring generator output for isochronous and droop load sharing.
• Substation Automation: Monitoring busbar voltage and current for grid protection.
• Marine Power: Integrated measurement for shipboard main switchboards.
• Industrial Facilities: Energy management and power quality monitoring for large manufacturing plants.
• Renewable Energy: Voltage and frequency tracking for wind turbine and solar farm inverters.

 

Product Usage Instructions

1. Mounting: Install the UMT1 on a standard 35mm DIN rail within a metal control cabinet to provide adequate shielding against electromagnetic interference.
2. CT/PT Wiring: Connect the secondary leads from the Current Transformers (CT) and Potential Transformers (PT). Ensure the CT circuit is never opened while the primary is energized.
3. Output Setup: Wire the analog output terminals to the analog input card of your control system. Ensure the loop resistance is within the specified limits (typically < 500 ohms).
4. Configuration: Connect a PC to the service port to define the measurement ranges (e.g., 0–600V AC = 4–20mA). Save the configuration to the internal EEPROM.
5. Grounding: Connect the PE (Protective Earth) terminal to the common grounding busbar to ensure the internal filters and isolation barriers function correctly.