Woodward 8237-1600 ProTech-GII Overspeed Protection System Panel Mount HV/LV Voted Relays

Description

The Woodward 8237-1600 is a panel-mount overspeed protection device belonging to the ProTech-GII series. Designed with high-voltage/low-voltage (HV/LV) power input capabilities and voted relay outputs, the 8237-1600 provides critical monitoring and trip execution functions for industrial rotating machinery such as turbines and turbo-expanders. The unit features speed settings configurable up to 80,000 rpm (with maximum speed frequency handling up to 32 kHz), a low-pass filter on acceleration signals, sudden speed loss detection, and integrated front-panel display and key navigation. Interface capabilities include consecutive Modbus address mapping and analog/register reads.

Features

• Panel-mount enclosure design with HV/LV power input configuration and voted trip relay outputs
• Configurable speed settings from 32,000 rpm up to 80,000 rpm facilitating turbo-expander applications
• Maximum input speed frequency up to 32 kHz
• Configurable low-pass filter on acceleration signals and customizable speed loss failure thresholds
• Front panel interface featuring speed display with configurable filtering, one-decimal precision below 100 rpm, and fast key response
• Front panel Trip and Alarm buttons for toggling between Log and Latch screens
• Dedicated front panel display screens for Shared Reset, Shared Start, and Shared Speed Fail Override
• Auto Sequence Test functionality displaying comprehensive sequence test results
• Consecutive Modbus register mapping with scaled analog reads for speed and acceleration values
• Compatible with ProTech Service Tool (9927-1810 Rev. J)
• Convertible to updated model configurations via Field Software Conversion Kit (8929-039) for Rev D or newer units

Applications

• Steam, gas, and hydro turbine overspeed protection
• High-speed turbo-expander protection and monitoring systems
• Rotating machinery safety-critical trip logic execution

Technical Specifications

Installation Guidelines

• Mount the device securely into a control panel cut-out following standard panel mounting procedures.
• Connect high-voltage or low-voltage power supply wiring to the designated power terminals.
• Wire the voted relay outputs directly to the trip solenoids or safety instrumented circuits.
• Connect communication lines to the Modbus network interface using proper shielding and termination techniques.
• Use Woodward ProTech Service Tool software (9927-1810 Rev. J) to load, configure, or verify system parameter files.