Woodward 8237-1600 PROTECH-GII OVERSPEED PROTECTION DEVICE

Product Item : 8237-1600
Product Brand : Other
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Woodward 8237-1600 PROTECH-GII OVERSPEED PROTECTION DEVICE

Acceleration Detection

Optionally the ProTech-GII 8237-1246 can be configured to protect a turbine from high acceleration events also. The derivative of the speed signal is used to detect turbine acceleration and issue an associated trip command.

MPU Detection

Each module’s speed sensor input uses special MPU open-wire detection circuitry to validate that the MPU is properly connected before turbine operation, and special loss-of-speed detection logic to validate MPU functionality during turbine operation.

Automatic Overspeed Test Routine

Optionally the ProTech-GII 8237-1246 can be configured to routinely perform an overspeed test of each module, then log and report the test results. With this test routine, each module goes through its test sequence using an internal frequency generator to simulate an overspeed condition.

Sulfur Contamination Resistant

The ProTech-GII utilizes a special conformal coating material that has demonstrated excellent long-term protection against H2S and SO2 gases at levels classified in international standard IEC 721-3-3 1994 - environment Class 3C2.

On-line Repair

The ProTech-GII’s triple-modular design allows users to easily replace one of its modules (A, B, C) while the turbine is on-line and operating normally. Ease of replacement is enhanced by the unit’s backplane plug-and-operate structure, and its module-to-module learning function.