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8237-1246 WOODWARD Overspeed Protection Device Turbine Trip Module for Steam Gas Hydro Project

Name: 8237-1246 WOODWARD Overspeed Protection Device Turbine Trip Module for Steam Gas Hydro Project
Brand: MOORE AUTOMATION LIMITED
SKU: 8237-1246
Price: Negotiable USD
Availability: InStock

Product Details:

Place of Origin:	USA
Brand Name:	Woodward
Certification:	IEC 61508 SIL 3
Model Number:	8237-1246

Detail Information

Place of Origin:

USA

Brand Name:

Woodward

Certification:

IEC 61508 SIL 3

Model Number:

8237-1246

Product Description:

Bulkhead-mount ProTech-GII Overspeed And Over-acceleration Protection Device With 2oo3 Voted Trip Relays

Official Configuration:

8237-1246 · HV/LV Power · Voted Relays · Bulkhead Mount

Protection Architecture:

Three Independent Modules · Triple Modular Redundant · 2-out-of-3 Voting

Speed / Response:

0.5 To 32,000 Rpm · 12 Ms Response Time

Power Inputs:

Per Module: HV 90-264 Vac / 47-63 Hz Or 100-150 Vdc; LV 18-32 Vdc

Enclosure / Ambient:

IP56 Bulkhead Enclosure · -20 To +60 °C · Approximately 12 Kg

Highlight:

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Woodward overspeed protection device

turbine trip module for steam

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Trading Information

Minimum Order Quantity:

Price:

inquires

Packaging Details:

new and original with factory sealed

Delivery Time:

2-3 work days

Payment Terms:

T/T

Supply Ability:

requires

Product Description

8237-1246 WOODWARD Overspeed Protection Device Turbine Trip Module for Steam Gas Hydro Project

Engineered specifically for high-reliability utility applications, the Woodward ProTech-GII 8237-1246 features a Triple Modular Redundant (TMR) architecture with 2-out-of-3 (2oo3) voting logic. Unlike standard non-redundant monitors, this industrial-grade safety system isolates single-point sensor or module faults without interrupting operation, completely eliminating costly nuisance turbine trips while guaranteeing sub-millisecond overspeed and over-acceleration emergency shutdowns. This makes it the premier bulkhead-mounted safety solution for high-integrity steam, gas, and hydro turbines deployed in demanding power plants and critical industrial projects.

Technical Specifications

Specification Item	Technical Data	Practical Value for Buyers
Product Model	8237-1246	Certified, standalone safety device tailored for critical turbine asset protection.
Manufacturer	Woodward	The global standard in turbine control, satisfying rigorous industrial compliance and insurance audits.
Architecture	Triple Modular Redundant (TMR)	[Core Value] Three independent processing paths operate simultaneously. Allows operators to safely replace an individual module "hot" while the turbine is online, preventing forced plant outages.
Voting Logic	2-out-of-3 (2oo3) Voted Relays	[Core Value] Errant noise spikes on a single MPU channel are automatically out-voted, keeping the plant running while maintaining a safe, hardware-asserted shutdown path.
Monitored Variables	Overspeed & Over-acceleration	Calculates speed derivatives; trips instantly on sudden shaft snapping/coupling failures before mechanical structural limits are breached.
Input Power Configuration	HV / LV (High Volt & Low Volt)	Features dual-power compatibility (90-264 VAC / 100-150 VDC inputs), enabling seamless integration into redundant plant battery banks.
Analog Output	4-20 mA Speed Readout	Seamlessly transmits real-time shaft speed feedback back to the plant DCS or SCADA panel without requiring external conversion modules.
Enclosure Rating	IP56 Bulkhead Mount	[Core Value] Dust-tight and heavily water-jet resistant. Eliminates the need for specialized secondary protective cabinets when mounted on the turbine skid.
Chemical Resistance	H₂S, SO₂, and Elemental Sulfur	Conformally coated to resist highly corrosive ambient gases, ensuring long-term life in geothermal plants or oil & gas fields.
Vibration Resistance	0.04 G²/Hz, 1.04 Grms (10-500 Hz)	Engineered to tolerate high-frequency structural shaking found directly adjacent to high-speed steam turbine casings.

Engineer's Note

"When commissioning the Woodward 8237-1246, ensure your passive or active MPUs are gapped exactly to the gear tooth tolerances specified in your API 670 guidelines. The ProTech-GII calculates structural over-acceleration based on the clean derivative of these speed signals. Loose or improperly shielded MPU lines can introduce signal noise that the controller could interpret as a rapid acceleration event, risking an unnecessary trip. Additionally, utilize the built-in trip-valve health monitoring feature during routine scheduled rotations to verify physical solenoid movement without bringing down the prime mover."

Company Profile

MOORE Service Offerings Are More Comprehensive

At every stage of our operations, we ensure that exceptional service is at the heart of what we do. We also invest significantly in attracting top global talent and securing exclusive technologies, enabling us to provide even higher quality service to our customers.

MOORE Parts Selection Is More Diverse

We are committed to continuous innovation and to raising the global standard for automation parts supply. Regardless of a customer's location or the difficulty in sourcing parts, our goal is to connect clients worldwide through our extensive inventory. Our broad range of offerings ensures that we can deliver a wide variety of parts to customers across the globe.

Ready to elevate your automation system? Contact us today for more information or to make a purchase:

WhatsApp: 86-18020776792

Miya Zheng
Scan the QR code above to contact us

miya@mvme.cn || 86-18020776792

Frequently Asked Questions

Can we perform proof-testing on the 8237-1246 trip circuits while the turbine is loaded and generating power?

Yes. Because of its 2-out-of-3 modular matrix, you can simulate an overspeed event on an individual module channel or force a single relay to trip using the front panel keypad. The remaining two modules remain active, ensuring your turbine remains 100% protected during online compliance testing.

What is the mechanical difference between this model (8237-1246) and the panel-mount configurations?

The 8237-1246 is a bulkhead-mounted unit housed inside its own sealed, heavy-duty industrial enclosure rated for IP56 protection. Panel-mount variants, by contrast, feature exposed rear circuitry meant to sit safely inside a climate-controlled, floor-standing centralized control room cabinet.

Does this overspeed module require a separate specialized software license to program the trip limits?

No, basic configurations and speed parameters can be set up directly through the rugged front 4.2-inch interface screen and keypad. Advanced configuration, back-ups, and diagnostic trend analysis can be performed via the standard Woodward ProTech Service Tool connected via a local PC interface.

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8237-1246 WOODWARD Overspeed Protection Device Turbine Trip Module for Steam Gas Hydro Project

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