2024年9月10日发(作者：舒语梦)

Released

®

Product Specification

03370

(Revision J, 11/2022)

ProTech‐GII

Overspeed Protection Device

(Triple Modular Redundant)

Description

The ProTech-GII is an



overspeed safety device

designed to safely shut

down steam, gas, and



hydro turbines of all

sizes upon sensing an

overspeed or over-



acceleration event. This

device accurately



monitors turbine rotor

speed and acceleration

via active or passive



magnetic pickups

(MPUs) and issues a

shutdown command to the turbine’s trip valve(s) or corresponding trip system.



Depending on the system design, the ProTech-GII can be purchased with two dual-



redundant trip relay outputs using a 2-out-of-3 voted architecture, or with three

independent non-voted trip relay outputs. Individual alarm relays, 4–20 mA speed



readouts, and Modbus

®

* communications make this overspeed device easy to

integrate into any turbine safety system.

*—Modbus is a trademark of Schneider Automation Inc.



The ProTech-GII is available in flush-mount models designed to be installed within a

standard 24” (610 mm) cabinet front door, or models designed to be bulkhead

mounted on a wall or skid near the turbine set. Designed for harsh environments



when installed within an enclosure, this device has an ingress protection rating of

IP56 (protected against dust and completely protected against jets of water of similar

force to heavy seas).



Designed for high reliability, each ProTech-GII module (A, B, C), depending on the

purchased model, accepts two high-voltage power inputs (90–240 Vac / 100–150

Vdc) or one high-voltage power input (90–240 Vac / 100–150 Vdc) and one low-

voltage power input (18–32 Vdc). This design works on a high-signal-select basis,

allowing the unit to fully operate with either or both power sources available.



Applications



The ProTech-GII is designed to safely shut down steam, gas, and hydro turbines

upon sensing a turbine overspeed or over-acceleration event. The device’s 12

millisecond response time and 0.5 to 80 000 rpm speed range make it ideal for

application on all types and sizes of turbines.

SIL-3

Certified

& API612

Compliant

voting

availability

(TMR)

protection

testing

repair

trip

and test logs

communications

security

protection

millisecond

response time

(independent

voted output

models)

frequency

generator

Ethernet

communication

gateway

IEC61508

API670

2-out-of-3

High

Acceleration

On-line

On-line

Overspeed

Modbus

Password

12

Internal

Optional

Released

Woodward 03370 p.2

The ProTech-GII models with two dual-redundant relay outputs are design to be applied with simplex or dual-redundant trip

block assemblies or trip systems. The ProTech-GII models with three independent non-voted output models are designed

to be applied with special turbine trip block assemblies that perform the 2-out-of-3 voting within their design.

This fast acting overspeed protection device is designed to be applied in conjunction with a turbine control or trip system to

safely shut down the turbine. Interface with related control systems or plant Distributed Control Systems (DCSs) can be

performed via the ProTech-GII’s redundant hard-wired input and output signals or through its triple-redundant serial

Modbus communications ports. Optionally, Ethernet gateways can be purchased to easily interface with plant Ethernet

networks.

Certified as an IEC61508 SIL-3 (Safety Integrity Level Three) safety device, the ProTech-GII can easily be applied within

an IEC61508 or IEC61511 based safety system. A thorough product manual is provided to instruct users on how to apply

the ProTech-GII to meet IEC based requirements.

Designed for system-critical applications, the ProTech-GII’s triple-modular architecture coupled with its on-line testing and

on-line repair capabilities give it one of the highest availability and reliability ratings in the industry.

Functionality

On-line Testing—Each ProTech-GII module can be tested manually from the module’s front panel, Modbus

communications port, or automatically via its auto-test routine function. The ProTech-GII allows users to configure an

overspeed test to be performed automatically on a periodic basis, testing each module (A, B, C) one at a time, and logging

the result of each test or halting the test for a sensed error.

On-line Repair—The ProTech-GII’s triple-modular design allows users to easily replace one of its modules (A, B, C) while

the turbine is on-line and operating normally. Ease of replacement is enhanced by the unit’s backplane plug-and-operate

structure, and its module-to-module learning function.

Trip, Alarm, & Overspeed Logs—The ProTech-GII log function logs (saves to memory) all trips, alarms, trip valve

response times, and overspeed events. The trip-log function uses a scrolling buffer and records the last 50 sensed trip or

alarm events and the last 20 overspeed events to memory, with associated times. Each log file can be viewed from the

unit’s front panel, or downloaded to a computer via the ProTech-GII service tool program. Each module utilizes non-volatile

memory to ensure that all logged events are saved, even on loss of power.

Real Time Clock—Each ProTech-GII module utilizes a real-time clock to ensure accurate time logging. A special time-

averaging function is utilized between modules to ensure module-to-module clock synchronization.

Features

Acceleration Detection—Optionally, the ProTech-GII can also be configured to protect a turbine from high acceleration

events. The derivative of the speed signal is used to detect turbine acceleration and issue an associated trip command.

MPU Detection—Each module’s speed sensor input uses special MPU open-wire detection circuitry to validate that the

MPU is properly connected before turbine operation, and special loss-of-speed detection logic to validate MPU functionality

during turbine operation.

Automatic Overspeed Test Routine—Optionally, the ProTech-GII can be configured to routinely perform an overspeed

test of each module, then log and report the test results. With this test routine, each module goes through its test sequence

using an internal frequency generator to simulate an overspeed condition.

Sulfur Contamination Resistant—The ProTech-GII utilizes a special conformal coating material that has demonstrated

excellent long-term protection against H

2

S and SO

2

gases at levels classified in international standard IEC 721-3-3 1994 -

environment Class 3C2.

Configurability

The ProTech-GII can be configured (programmed) through its front-panel keypad or via a software service tool operating

on a site computer or laptop. For ease of use, all configuration settings, alarm/trip and overspeed logs are viewable via

each module’s high-resolution 4.2” (107 mm) color display. A special module-to-module learning function can be utilized to

reduce configuration time and mistakes. Different levels of password security are utilized to protect unit configuration

settings as well as limit access to device test functions.

Installation Information









Approximate dimensions, including faceplate: 330 x 445 x 159 mm (13 x 17.5 x 6.25”).

Depending on part number ordered, designed to be bulkhead mounted on a wall or skid, or flush-mounted vertically

within a panel or cabinet.

Rated for IP56 (ingress protection level 5-6) based locations.

Operating / storage temperature range: –20 to +60 °C.

Released

Woodward 03370 p.3

Input Signals

Power Source (two redundant)

 High voltage power supply (88–264 Vac/47–63 Hz; 90–150 Vdc) @ 90 W

 Low voltage power supply (18–32 Vdc) @ 100 W

Speed Signals (1/module, three total)

Inputs can be configurable to accept signals from:

 MPUs (100–32 000 Hz) @ (1–35 Vrms)

 Proximity probes (0.5–25 000 Hz) @ 24 Vdc

 Gear tooth range (1–320 teeth)

Discrete Inputs (3/module, nine total)

 Alarm/trip reset command

 Start command

 Speed fail override command

Output Signals

Discrete Output Relays

Voted Relay Models

 Shutdown relay output (2 total, 2-out-of-3 voted)

o Rated for 8 A @ 220 Vac or 8 A @ 24 Vdc

 Alarm relay output (1/module, 3 total)

o Rated for 2 A @ 24 Vdc

4–20 mA Analog Output (1/module, 3 total)

 Dedicated to function as a speed meter readout

Communication Ports (1/module, 3 total)

 Serial RS-232, RS-422, RS-485 Modbus port

Regulatory Compliance

North American Compliance:

 CSA certified for Class I, Division 2, Groups A, B, C, and D, T4 at 60 °C ambient for use in Canada and the United

States.

European Compliance:

 EMC Directive: 2014/30/EU

 ATEX Directive: 2014/34/EU, II 3 G, Ex ec nC IIC T4 Gc (-20°C ≤ Tamb ≤ +60°C)

 LVD Directive : 2014/35/EU

 RoHS: 2011/65/EU

Woodward turbomachinery systems products are intended exclusively for sale and use only as a part of Large Scale

Fixed Installations per the meaning of Art.2.4(e) of directive 2011/65/EU. This fulfills the requirements stated in Art.2.4(c),

and as such, the product is excluded from the scope of RoHS2.

UKCA Compliance:

 Electromagnetic Compatibility Regulations 2016 : S.I. 2016 No. 1091

 Equipment and Protective Systems Intended for use in Potentially Explosive Atmospheres Regulations 2016 : S.I. 2016

No. 1107 as II 3 G, Ex ec nC IIC T4 Gc (-20°C ≤ Tamb ≤ +60°C)

 The Electrical Equipment (Safety) Regulations 2016 : S.I. 2016 No. 1101

Other International Compliance:

 IECEx: Certified for use in explosive atmospheres per IECEx Certificate TUR 21.0042X as Ex ec nC IIC T4 Gc (-20°C ≤

Tamb ≤ +60°C)

 SIL: TÜV certified for SIL-3 per IEC 61508 Parts 1-7

 RCM (Australia & New Zealand): Compliance is limited to application for those units bearing the Regulatory Compliance

Mark (RCM). Only EMC is applicable in virtually all Woodward intended applications.

 IEC60068-2-60:1995 Part 2.60 Methods 1 and 4 (conformal coating)

 API670 & API612 compliant

Released

Woodward 03370 p.4

Single ProTech-GII Module

HVAC/DC

Isolated

Power

Supply

24V

24VDC or HVAC/DC

Isolated

Power

Supply

Auxiliary

Power

Only Available

with Voted

Relay Models!!

Reset

Start

Override

Start / Reset

Logic

Trip Relay

Trip Relay

Alarm Relay

Password

Enable

Configurable

Trip & Alarm

Relay Logic

Analog Readout

External

Logic

B-1

B-2

To Meter or

DCS

Plant DCS

Other ProTech

Modules

Service

Computer

C-1

C-2

ModBus

Serial Port

CAN Sharing

Port

Front Panel Interface

- Display

- Keypad

- LEDs

Service Tool

Port

Voted

Interposing

Relays

Trip Relay

Output 1

Trip Relay

Output 2

Freq

Gen

MPU or Prox

Trip Setting

(Configurable)

Compare

Single Module Functional Diagram

2-out-of-3 Voted Application Diagram

Released

Woodward 03370 p.5

Independent Voted Application Diagram

PO Box 1519, Fort Collins CO, USA 80522-1519

1041 Woodward Way, Fort Collins CO 80524

Tel.: +1 (970) 482-5811

For more information contact:

Distributors & Service

Woodward has an international network of distributors and service facilities.

For your nearest representative, call the Fort Collins plant or see the

Worldwide Directory on our website.

This document is distributed for informational purposes only. It is not to be construed as

creating or becoming part of any Woodward contractual or warranty obligation unless

expressly stated in a written sales contract.

Copyright © Woodward 2009–2022, All Rights Reserved

2024年9月10日发(作者：舒语梦)

Released

®

Product Specification

03370

(Revision J, 11/2022)

ProTech‐GII

Overspeed Protection Device

(Triple Modular Redundant)

Description

The ProTech-GII is an



overspeed safety device

designed to safely shut

down steam, gas, and



hydro turbines of all

sizes upon sensing an

overspeed or over-



acceleration event. This

device accurately



monitors turbine rotor

speed and acceleration

via active or passive



magnetic pickups

(MPUs) and issues a

shutdown command to the turbine’s trip valve(s) or corresponding trip system.



Depending on the system design, the ProTech-GII can be purchased with two dual-



redundant trip relay outputs using a 2-out-of-3 voted architecture, or with three

independent non-voted trip relay outputs. Individual alarm relays, 4–20 mA speed



readouts, and Modbus

®

* communications make this overspeed device easy to

integrate into any turbine safety system.

*—Modbus is a trademark of Schneider Automation Inc.



The ProTech-GII is available in flush-mount models designed to be installed within a

standard 24” (610 mm) cabinet front door, or models designed to be bulkhead

mounted on a wall or skid near the turbine set. Designed for harsh environments



when installed within an enclosure, this device has an ingress protection rating of

IP56 (protected against dust and completely protected against jets of water of similar

force to heavy seas).



Designed for high reliability, each ProTech-GII module (A, B, C), depending on the

purchased model, accepts two high-voltage power inputs (90–240 Vac / 100–150

Vdc) or one high-voltage power input (90–240 Vac / 100–150 Vdc) and one low-

voltage power input (18–32 Vdc). This design works on a high-signal-select basis,

allowing the unit to fully operate with either or both power sources available.



Applications



The ProTech-GII is designed to safely shut down steam, gas, and hydro turbines

upon sensing a turbine overspeed or over-acceleration event. The device’s 12

millisecond response time and 0.5 to 80 000 rpm speed range make it ideal for

application on all types and sizes of turbines.

SIL-3

Certified

& API612

Compliant

voting

availability

(TMR)

protection

testing

repair

trip

and test logs

communications

security

protection

millisecond

response time

(independent

voted output

models)

frequency

generator

Ethernet

communication

gateway

IEC61508

API670

2-out-of-3

High

Acceleration

On-line

On-line

Overspeed

Modbus

Password

12

Internal

Optional

Released

Woodward 03370 p.2

The ProTech-GII models with two dual-redundant relay outputs are design to be applied with simplex or dual-redundant trip

block assemblies or trip systems. The ProTech-GII models with three independent non-voted output models are designed

to be applied with special turbine trip block assemblies that perform the 2-out-of-3 voting within their design.

This fast acting overspeed protection device is designed to be applied in conjunction with a turbine control or trip system to

safely shut down the turbine. Interface with related control systems or plant Distributed Control Systems (DCSs) can be

performed via the ProTech-GII’s redundant hard-wired input and output signals or through its triple-redundant serial

Modbus communications ports. Optionally, Ethernet gateways can be purchased to easily interface with plant Ethernet

networks.

Certified as an IEC61508 SIL-3 (Safety Integrity Level Three) safety device, the ProTech-GII can easily be applied within

an IEC61508 or IEC61511 based safety system. A thorough product manual is provided to instruct users on how to apply

the ProTech-GII to meet IEC based requirements.

Designed for system-critical applications, the ProTech-GII’s triple-modular architecture coupled with its on-line testing and

on-line repair capabilities give it one of the highest availability and reliability ratings in the industry.

Functionality

On-line Testing—Each ProTech-GII module can be tested manually from the module’s front panel, Modbus

communications port, or automatically via its auto-test routine function. The ProTech-GII allows users to configure an

overspeed test to be performed automatically on a periodic basis, testing each module (A, B, C) one at a time, and logging

the result of each test or halting the test for a sensed error.

On-line Repair—The ProTech-GII’s triple-modular design allows users to easily replace one of its modules (A, B, C) while

the turbine is on-line and operating normally. Ease of replacement is enhanced by the unit’s backplane plug-and-operate

structure, and its module-to-module learning function.

Trip, Alarm, & Overspeed Logs—The ProTech-GII log function logs (saves to memory) all trips, alarms, trip valve

response times, and overspeed events. The trip-log function uses a scrolling buffer and records the last 50 sensed trip or

alarm events and the last 20 overspeed events to memory, with associated times. Each log file can be viewed from the

unit’s front panel, or downloaded to a computer via the ProTech-GII service tool program. Each module utilizes non-volatile

memory to ensure that all logged events are saved, even on loss of power.

Real Time Clock—Each ProTech-GII module utilizes a real-time clock to ensure accurate time logging. A special time-

averaging function is utilized between modules to ensure module-to-module clock synchronization.

Features

Acceleration Detection—Optionally, the ProTech-GII can also be configured to protect a turbine from high acceleration

events. The derivative of the speed signal is used to detect turbine acceleration and issue an associated trip command.

MPU Detection—Each module’s speed sensor input uses special MPU open-wire detection circuitry to validate that the

MPU is properly connected before turbine operation, and special loss-of-speed detection logic to validate MPU functionality

during turbine operation.

Automatic Overspeed Test Routine—Optionally, the ProTech-GII can be configured to routinely perform an overspeed

test of each module, then log and report the test results. With this test routine, each module goes through its test sequence

using an internal frequency generator to simulate an overspeed condition.

Sulfur Contamination Resistant—The ProTech-GII utilizes a special conformal coating material that has demonstrated

excellent long-term protection against H

2

S and SO

2

gases at levels classified in international standard IEC 721-3-3 1994 -

environment Class 3C2.

Configurability

The ProTech-GII can be configured (programmed) through its front-panel keypad or via a software service tool operating

on a site computer or laptop. For ease of use, all configuration settings, alarm/trip and overspeed logs are viewable via

each module’s high-resolution 4.2” (107 mm) color display. A special module-to-module learning function can be utilized to

reduce configuration time and mistakes. Different levels of password security are utilized to protect unit configuration

settings as well as limit access to device test functions.

Installation Information









Approximate dimensions, including faceplate: 330 x 445 x 159 mm (13 x 17.5 x 6.25”).

Depending on part number ordered, designed to be bulkhead mounted on a wall or skid, or flush-mounted vertically

within a panel or cabinet.

Rated for IP56 (ingress protection level 5-6) based locations.

Operating / storage temperature range: –20 to +60 °C.

Released

Woodward 03370 p.3

Input Signals

Power Source (two redundant)

 High voltage power supply (88–264 Vac/47–63 Hz; 90–150 Vdc) @ 90 W

 Low voltage power supply (18–32 Vdc) @ 100 W

Speed Signals (1/module, three total)

Inputs can be configurable to accept signals from:

 MPUs (100–32 000 Hz) @ (1–35 Vrms)

 Proximity probes (0.5–25 000 Hz) @ 24 Vdc

 Gear tooth range (1–320 teeth)

Discrete Inputs (3/module, nine total)

 Alarm/trip reset command

 Start command

 Speed fail override command

Output Signals

Discrete Output Relays

Voted Relay Models

 Shutdown relay output (2 total, 2-out-of-3 voted)

o Rated for 8 A @ 220 Vac or 8 A @ 24 Vdc

 Alarm relay output (1/module, 3 total)

o Rated for 2 A @ 24 Vdc

4–20 mA Analog Output (1/module, 3 total)

 Dedicated to function as a speed meter readout

Communication Ports (1/module, 3 total)

 Serial RS-232, RS-422, RS-485 Modbus port

Regulatory Compliance

North American Compliance:

 CSA certified for Class I, Division 2, Groups A, B, C, and D, T4 at 60 °C ambient for use in Canada and the United

States.

European Compliance:

 EMC Directive: 2014/30/EU

 ATEX Directive: 2014/34/EU, II 3 G, Ex ec nC IIC T4 Gc (-20°C ≤ Tamb ≤ +60°C)

 LVD Directive : 2014/35/EU

 RoHS: 2011/65/EU

Woodward turbomachinery systems products are intended exclusively for sale and use only as a part of Large Scale

Fixed Installations per the meaning of Art.2.4(e) of directive 2011/65/EU. This fulfills the requirements stated in Art.2.4(c),

and as such, the product is excluded from the scope of RoHS2.

UKCA Compliance:

 Electromagnetic Compatibility Regulations 2016 : S.I. 2016 No. 1091

 Equipment and Protective Systems Intended for use in Potentially Explosive Atmospheres Regulations 2016 : S.I. 2016

No. 1107 as II 3 G, Ex ec nC IIC T4 Gc (-20°C ≤ Tamb ≤ +60°C)

 The Electrical Equipment (Safety) Regulations 2016 : S.I. 2016 No. 1101

Other International Compliance:

 IECEx: Certified for use in explosive atmospheres per IECEx Certificate TUR 21.0042X as Ex ec nC IIC T4 Gc (-20°C ≤

Tamb ≤ +60°C)

 SIL: TÜV certified for SIL-3 per IEC 61508 Parts 1-7

 RCM (Australia & New Zealand): Compliance is limited to application for those units bearing the Regulatory Compliance

Mark (RCM). Only EMC is applicable in virtually all Woodward intended applications.

 IEC60068-2-60:1995 Part 2.60 Methods 1 and 4 (conformal coating)

 API670 & API612 compliant

Released

Woodward 03370 p.4

Single ProTech-GII Module

HVAC/DC

Isolated

Power

Supply

24V

24VDC or HVAC/DC

Isolated

Power

Supply

Auxiliary

Power

Only Available

with Voted

Relay Models!!

Reset

Start

Override

Start / Reset

Logic

Trip Relay

Trip Relay

Alarm Relay

Password

Enable

Configurable

Trip & Alarm

Relay Logic

Analog Readout

External

Logic

B-1

B-2

To Meter or

DCS

Plant DCS

Other ProTech

Modules

Service

Computer

C-1

C-2

ModBus

Serial Port

CAN Sharing

Port

Front Panel Interface

- Display

- Keypad

- LEDs

Service Tool

Port

Voted

Interposing

Relays

Trip Relay

Output 1

Trip Relay

Output 2

Freq

Gen

MPU or Prox

Trip Setting

(Configurable)

Compare

Single Module Functional Diagram

2-out-of-3 Voted Application Diagram

Released

Woodward 03370 p.5

Independent Voted Application Diagram

PO Box 1519, Fort Collins CO, USA 80522-1519

1041 Woodward Way, Fort Collins CO 80524

Tel.: +1 (970) 482-5811

For more information contact:

Distributors & Service

Woodward has an international network of distributors and service facilities.

For your nearest representative, call the Fort Collins plant or see the

Worldwide Directory on our website.

This document is distributed for informational purposes only. It is not to be construed as

creating or becoming part of any Woodward contractual or warranty obligation unless

expressly stated in a written sales contract.

Copyright © Woodward 2009–2022, All Rights Reserved