Product Description
Woodward 9907-652 ProTech 203 Overspeed Protection System
Product Overview
- The Woodward 9907-652 is a ProTech 203 Overspeed Protection System designed to provide reliable overspeed protection for industrial turbines and engines, such as gas turbines, steam turbines
Technical Specifications
- The 9907-652 has the following specifications based on industry sources and Woodward documentation:
| Specification | Details |
|---|---|
| Model/Part Number | 9907-652 |
| Manufacturer | Woodward |
| Description | ProTech 203 Overspeed Protection System |
| Series | ProTech 203 |
| Function | Monitors turbine/engine speed and initiates trip on overspeed conditions |
| Processor | Microprocessor-based, triple-redundant (specific architecture not publicly detailed) |
| Memory | Flash: 4–8 MB per module (for firmware and configuration) RAM: 2–4 MB per module (for runtime data) |
| Display | LED indicators for status, trip, and faults per module; no onboard display |
| Inputs | 3 speed inputs per module (magnetic pickup or proximity probes, 0.5–25 kHz, total 9 inputs) 2 discrete inputs per module (24 VDC, for reset or test, total 6 inputs) |
| Outputs | 2 relay outputs per module (dry contact, up to 250 VAC/5 A, for trip and alarm, total 6 outputs) 1 analog output per module (4–20 mA, for speed monitoring, total 3 outputs) |
| Communication Interfaces | 1 serial port per module (RS-485, Modbus RTU, total 3 ports) 1 CANbus port per module (for inter-module communication, total 3 ports) |
| Trip Accuracy | ±0.1% of setpoint speed |
| Response Time | <20 ms (for overspeed trip) |
| Protection Functions | Overspeed trip, loss of speed signal, sensor fault detection, module discrepancy |
| Redundancy | Triple Modular Redundant (TMR) with 2-out-of-3 voting logic |
| Diagnostics | Fault detection, event logging (up to 200 events per module), status LEDs, self-test, module health monitoring |
| Compatibility | Woodward control systems (e.g., MicroNet, 505, EasyGen), magnetic pickups, proximity probes; integrates with SCADA/DCS systems via Modbus RTU; compatible with turbine/engine shutdown systems |
| Power Supply | 18–32 VDC (24 VDC nominal, dual redundant inputs) |
| Power Consumption | Approx. 15–25 W (total for three modules) |
| Environmental Specifications | Operating Temperature: -40°C to +70°C (-40°F to +158°F) Storage Temperature: -40°C to +85°C (-40°F to +185°F) Relative Humidity: 5% to 95% non-condensing Vibration: IEC 60068-2-6 compliant Shock: IEC 60068-2-27 compliant |
| Enclosure | IP20 (requires enclosure for harsh environments) |
| Dimensions | Approx. 330 mm (H) x 190 mm (W) x 90 mm (D) |
| Weight | Approx. 2.5–3.5 kg (total for three modules) |
| Mounting | Panel-mounted or chassis-mounted |
| Certifications | CE, UL, CSA, SIL 3 capable (per IEC 61508), marine certifications (e.g., DNV, ABS, Lloyd’s Register); ATEX/IECEx Zone 2 (optional) |