9907-147 PROTECH 203
24 VDC Overspeed Protection System · Three-Channel Overspeed Trip System for Woodward ProTech 203 Protection System
Lifecycle note: Use the unit nameplate and current Woodward documentation as final references before approving a replacement.
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+86 1535940827524 VDC Overspeed Protection System · Woodward ProTech 203 Protection System
Woodward 9907-147 PROTECH 203 is a three-channel overspeed protection system for rotating prime movers. Three independent speed-sensing and trip channels provide redundant monitoring, and the system uses two-out-of-three voting so a valid overspeed condition can initiate a machine trip without depending on one electronic channel.
Each channel of Woodward 9907-147 PROTECH 203 operates from a 24 VDC supply within the documented 18–32 VDC range and processes its own speed input. Independent displays, setpoints, and test functions support channel-by-channel inspection while the protection system remains integrated with the plant trip circuit.
This model is the de-energize-to-trip 24 VDC configuration of the ProTech 203 family. The fail-safe output philosophy makes loss of channel power or a commanded overspeed trip visible to the connected shutdown logic, subject to the installed voting and relay wiring.
Replacement requires confirmation of Woodward 9907-147 PROTECH 203 channel power, magnetic-pickup characteristics, overspeed setpoints, trip-latch behavior, relay contacts, and voting connections. Protection settings must be commissioned against the machine manufacturer’s approved overspeed limits.
| Manufacturer | Woodward |
|---|---|
| Model | 9907-147 PROTECH 203 |
| Product type | Three-Channel Overspeed Trip System |
| System family | Woodward ProTech 203 Protection System |
| Supply | 24 VDC per channel, 18–32 VDC |
| Architecture | Three independent protection channels |
| Trip logic | Two-out-of-three voting |
| Trip configuration | De-energize-to-trip |
| Input | Magnetic pickup speed sensing |
Use the installed-unit nameplate and current Woodward documentation as the final references before approving a replacement.
Woodward 9907-147 PROTECH 203 is a three-channel overspeed protection system for rotating prime movers. Three independent speed-sensing and trip channels provide redundant monitoring, and the system uses two-out-of-three voting so a valid overspeed condition can initiate a machine trip without depending on one electronic channel.
Each channel of Woodward 9907-147 PROTECH 203 operates from a 24 VDC supply within the documented 18–32 VDC range and processes its own speed input. Independent displays, setpoints, and test functions support channel-by-channel inspection while the protection system remains integrated with the plant trip circuit.
Woodward 9907-147 PROTECH 203 is associated with Woodward ProTech 203 Protection System and should be matched to the installed platform.
Woodward 9907-147 PROTECH 203 is identified as a Three-Channel Overspeed Trip System.
For Woodward 9907-147 PROTECH 203, confirm supply (24 VDC per channel, 18–32 VDC) together with the complete identification.
Woodward 9907-147 PROTECH 203 should not be substituted until the part number, revision, physical configuration and installed-system requirements are verified.
Check Woodward 9907-147 PROTECH 203 for the exact part number, revision, connector layout, mounting, electrical configuration and application before ordering.
Technical information for Woodward 9907-147 PROTECH 203 should be checked against the installed nameplate and current official Woodward documentation.
We can supply Woodward 9907-147 PROTECH 203 in 100% original-new condition with factory seal and provide a 1-year warranty, subject to stock confirmation.
Send the model, complete identification, quantity, destination and nameplate photo. We will verify identification details before confirming availability and lead time.
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