TheWoodward9907-149 ProTech 203electronic overspeed trip device delivers reliable turbine overspeed protection for critical rotating equipment. It safeguards steam, gas, and hydro turbines in demanding industrial power environments. Moreover, the ProTech 203 platform integrates proven safety logic with modern electronic diagnostics. Engineers rely on this model when mechanical trip systems no longer meet performance expectations. Therefore, the device supports higher availability and improved plant safety compliance.
The 9907-149 variant forms part of the ProTech 203 triple-redundant protection architecture. It continuously monitors speed signals and executes an independent trip when thresholds are exceeded. In addition, its modular design simplifies installation in retrofit or new-build turbine systems.
Technical Specifications
Parameter
Description
Manufacturer
Woodward
Model Number
9907-149
Product Series
ProTech 203
Module Type
Electronic Overspeed Trip Device
Protection Architecture
Triple Modular Redundant (TMR), three independent channels
Front panel interface with secure parameter access
Trip Logic
2-out-of-3 voting logic for secure shutdown decisions
Trip Outputs
Dedicated relay outputs per channel
Output Contact Type
Dry contact relay outputs
Relay Contact Rating
Suitable for turbine trip solenoid circuits (application dependent)
Power Supply Voltage
24 VDC nominal (model dependent)
Power Consumption
Low power industrial electronic design
Diagnostic Functions
Continuous self-test and channel health monitoring
Fault Indication
Front panel LEDs and alarm outputs
Event Response Time
High-speed electronic detection for rapid trip execution
Environmental Rating
Designed for industrial control cabinet installation
Operating Temperature
Industrial temperature range suitable for turbine halls
Mounting Method
Panel-mounted industrial enclosure
Compliance
Designed for critical rotating equipment safety applications
Application Integration
Compatible with Woodward turbine governors and control systems
Typical Installation
Power generation plants, cogeneration facilities, process industry turbines
Maintenance Support
Field-replaceable modules and accessible diagnostics
Service Life Expectation
Engineered for long-term continuous industrial operation
FAQ
Q1: What is the primary function of the 9907-149 ProTech 203? It provides independent electronic overspeed protection for steam, gas, and hydro turbines.
Q2: Does the ProTech 203 use redundant protection logic? Yes, it uses triple modular redundancy to enhance reliability and safety integrity.
Q3: Can the 9907-149 replace a mechanical overspeed trip system? Yes, it is commonly installed as a retrofit upgrade in existing turbine installations.
Q4: What types of speed sensors are supported? It accepts magnetic pickups and proximity probes for flexible field integration.
Q5: Is the device suitable for critical power generation applications? Yes, it is widely used in utility, industrial, and cogeneration turbine systems.
Installation Notes
Install within Woodward control racks or cabinets
Connect directly to magnetic pickup sensors near turbine or engine shafts
Use proper wiring and shielding to prevent electrical noise interference
Calibration and verification of MPU signals may be required during commissioning
Answer 1: PLC DCS Pro Ltd. collaborates with over 50 countries worldwide. As a leading supplier in China, we can provide significant discounts to customers based on market demand.
Question 2: What Is The Warranty Period?
Answer 2: We offer a standard one-year warranty for all new and original items.
Question 3: What Payment Methods Do We Accept?
Answer 3: We accept 100% T/T (Telegraphic Transfer) before shipping. For items with a lead time, a 30% deposit is required in advance, with the remaining 70% balance due before shipping. If you have an agent in China, please contact us for RMB transfer.
Question 4: What Shipping Methods Do We Use?
Answer 4: We primarily utilize carriers such as FedEx, DHL, UPS, BRE, etc. If you have an account with any of these carriers, you can arrange the shipping yourself. Additionally, we offer free shipping to China freight forwarders.
Question 5: What Is Our Delivery Time?
Answer 5: Typically, delivery takes around 1-3 days after receiving the advance payment. For items with a quoted lead time, delivery will occur as per the specified lead time.
Question 6: How Do We Package The Goods?
Answer 6: Our packaging process involves multiple layers of protection. Initially, the product is placed in its original box, sealed with a label. Then, we add a layer of bubble wrap to safeguard against collisions during transportation. Finally, all products are securely packed in sturdy boxes for further protection.
Question 7: How Can Customers Contact Us And Request A Quote?
Answer 7: Customers can inquire via email, WhatsApp, WeChat, Skype, or any preferred communication platform. Simply reach out to us, and we'll promptly provide a quote tailored to your needs.
Warranty Conditions
At PLC DCS Pro Ltd., we are committed to ensuring the quality of our products. Our one-year warranty provides coverage for any defects in material or workmanship, excluding damages caused by deliberate misuse.
🛡️Coverage Details:
This warranty encompasses all instances of product malfunction or failure due to inherent manufacturing flaws, with the exception of intentional damage.
📝Claim Process:
To avail of warranty services, please notify us of any quality-related issues within the warranty period. We may conduct online troubleshooting and examination as needed.
🚚Shipping Assistance:
We understand the importance of prompt service. Therefore, we cover return shipping costs for warranty-related returns within the first month of supply. Within three months of supply, we cover one-way shipping costs for warranty-related returns. After three months, the customer is responsible for shipping costs both ways.
🚫Exclusions:
Unauthorized modifications, repairs, or misuse of the product.
