Woodward 8273‑126 Bulkhead-Mount Load Sharing & Speed Control
Manufacturer: Woodward
-
Part Number: 8273-126
Condition：New with Original Package
Product Type: Mount Load Sharing & Speed Control
-
Country of Origin: GERMANY
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Description
The Woodward 8273‑126 is a ProTech‑GII overspeed protection module engineered for turbines and large reciprocating engines. It continuously monitors shaft speed via magnetic pickup (MPU) sensors and issues a fast, independent trip signal to the turbine trip valve or breaker system when overspeed conditions occur.
This module is specifically designed for mission-critical industrial applications, featuring Triple Modular Redundancy (TMR) with three independent modules that vote to ensure reliable trip action. Therefore, even if one module fails, the system maintains protective functionality.
Housed in a rugged IP56-rated enclosure, the 8273‑126 operates reliably in harsh environments, including dust, moisture, and vibration-prone areas. Moreover, it integrates built-in diagnostics, watchdog timers, and LED indicators to enhance operational safety and maintenance efficiency.
Technical Specifications
| Feature | Specification |
|---|---|
| Product type | ProTech‑GII overspeed protection module |
| Manufacturer | Woodward |
| Model number | 8273‑126 |
| Function | Monitors turbine/engine speed and issues trip signal on overspeed |
| Architecture | Triple Modular Redundancy (TMR) – 3 independent modules with voting logic |
| Sensor inputs | Active or passive magnetic pickup (MPU) sensors |
| Trip outputs | High-speed relay outputs for turbine trip valve or breaker |
| Enclosure rating | IP56 dust and water resistant |
| Mounting | Bulkhead mount |
| Dimensions | 330 mm × 486 mm × 153 mm |
| Operating temperature | −40 °C to +85 °C |
| Humidity tolerance | 5–95% non-condensing |
| Power supply | 24 VDC nominal |
| Diagnostics | Built-in self-test, watchdog timers, LED indicators, fault logging |
| Certifications | CE, UL, IEC 60529 |
| Applications | Steam turbines, gas turbines, hydro turbines, reciprocating engines, generator sets |
FAQ
Q1: What is the main function of the 8273‑126 module?
A1: It independently monitors turbine or engine speed and issues fast trip signals during overspeed.
Q2: What does Triple Modular Redundancy (TMR) mean?
A2: TMR uses three independent internal modules that vote to ensure fault-tolerant trip action.
Q3: Is the device suitable for harsh environments?
A3: Yes, it has an IP56-rated enclosure, ensuring dust, water, and vibration resistance.
Q4: Which turbines and engines can it protect?
A4: Suitable for steam, gas, hydro turbines, and large reciprocating engines.
Q5: What power supply is required?
A5: The module operates on a 24 VDC nominal power supply.