WOODWARD 8237-1246 overspeed detection system device

Description

WOODWARD 8237-1246 is an optional overspeed detection system device used to protect turbines from high acceleration events. It uses the derivative of the speed signal to detect the acceleration of the turbine and issue relevant tripping commands.

This device has the following characteristics and functions:

Detect turbine acceleration: By detecting the speed sensor input of each module, use a special MPU open wire detection circuit to verify the correct connection of the MPU, as well as a special speed loss detection logic to verify the MPU function.

Automatic overspeed testing program: Optionally, WOODWARD 8237-1246 can be configured to perform periodic overspeed testing on each module, and then record and report the test results. In this testing program, each module uses an internal frequency generator to simulate overspeed conditions and complete its testing sequence.

Sulfur pollution resistance: This device adopts a special conformal coating material, which has good long-term protective performance against H2S and sulfur dioxide gases in the international standard IEC 721-3-1994 environmental class 3C2.

Online maintenance: The three module design of WOODWARD 8237-1246 allows users to easily replace one module (A, B, C) when the turbine is online and running normally.

In summary, WOODWARD 8237-1246 is an optional overspeed detection system device used to protect turbines from high acceleration events, with functions such as detecting turbine acceleration, automatic overspeed testing program, sulfur pollution resistance, and online maintenance.