Woodward

Woodward 8237-1246 ProTech-GII Overspeed Protection

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  • Manufacturer: Woodward

  • Product No.: Woodward 8237-1246

  • Product Type: Overspeed Protection System

  • Product Origin: USA

  • Payment: T/T

  • Weight: 1500g

  • Shipping port: Xiamen

  • Warranty: 12 months

Product Overview

The Woodward 8237-1246 is a ProTech-GII overspeed protection system designed for steam turbines, gas turbines, hydro turbines, and other rotating equipment. It uses a triple-modular redundant architecture with two-out-of-three voting logic to detect overspeed conditions and initiate protective shutdown actions.

Key Specs

  • Manufacturer: Woodward
  • Model: 8237-1246
  • Product Family: ProTech-GII
  • Product Type: Overspeed Protection System
  • Mounting: Bulkhead Mount
  • Power Configuration: High Voltage / Low Voltage
  • Trip Configuration: Voted Relays
  • Architecture: Triple Modular Redundancy (TMR)
  • Voting Logic: Two-out-of-Three (2oo3)
  • Speed Inputs: Three independent channels
  • Communication: Modbus

Why Choose This

  • Provides dedicated overspeed and acceleration protection functions.
  • Uses independent monitoring channels and redundant voting logic.
  • Supports critical turbine protection applications.
  • Includes speed monitoring and alarm functions.
  • Designed for high-availability industrial protection systems.

Common Questions

Q: What is the main function of the 8237-1246?
A: It monitors rotating equipment speed and initiates protective actions when configured limits are exceeded.

Q: Which mounting configuration does it use?
A: It is the bulkhead-mount version.

Q: What voting architecture does it use?
A: It uses triple-modular redundancy with two-out-of-three voting logic.

Mounting Steps

  1. Verify the equipment configuration and protection system requirements.
  2. Confirm the mounting location and power input arrangement.
  3. Install the unit using the specified bulkhead mounting arrangement.
  4. Connect speed sensors, power supplies, and trip relay circuits.
  5. Configure overspeed limits and voting parameters.
  6. Perform the required protection and trip-function tests before operation.

Buying Advice

Confirm the complete model number, hardware revision, power configuration, relay arrangement, and existing turbine wiring before ordering. Woodward documentation identifies 8237-1246 as a legacy ProTech-GII configuration. Check the approved replacement and revision compatibility before substituting another model.

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