Safety Systems

Alberta Governor carries safety systems that provide protection for steam and gas turbines. Our safety systems adhere to recognized standards, including API 670 and SIL.

We carry the following safety systems:

Woodward MicroNet Safety Module Fault-Tolerant Protection System

Features include:

  • IEC61508 SIL-3 Certified
  • API670 & API612 Compliant
  • Overspeed protection
  • Acceleration & deceleration protection
  • User-programmable logic
  • 2-out-of-3 voting
  • High availability (TMR)
  • On-line testing
  • On-line repair
  • Auto test routines
  • Trip valve health monitoring
  • Trip, alarm & test logs
  • Modbus communications
  • Password security protection (NERC compliant)
  • 12 millisecond response time (independent voted models)
  • Internal frequency generator

Woodward ProTech TPS

TWoodward’s ProTech® TPS PLC safety system is a SIL 3 system for any size steam, gas, or hydro turbine, or plant process equipment. This safety PLC’s fast (12 millisecond) response time, 0.5 to 32 000 rpm speed range, and integrated overspeed and acceleration detection/protection functionality, make it ideal for application on critical high-speed rotating motors, compressor, turbines or engines.

Features include:

  • IEC61508 SIL-3 Certified
  • API670 & API612 Compliant
  • Overspeed protection
  • Acceleration & deceleration protection
  • User-programmable logic
  • 2-out-of-3 voting
  • High availability (TMR)
  • Online testing
  • Online repair
  • Auto test routines
  • Trip valve health monitoring function
  • Trip, alarm & test logs
  • Modbus communications
  • Password security protection
  • 12 millisecond response time (independent voted models)
  • Internal frequency generator

Woodward ProTech-GII Overspeed Protection Device

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 MPUs (magnetic pickups) and issues a shutdown command to the turbine’s trip valve(s) or corresponding trip system.

Features include:

  • IEC61508 SIL-3 Certified
  • API670 & API612 Compliant
  • 2-out-of-3 voting
  • High availability (TMR)
  • Acceleration protection
  • Online testing Online repair
  • Overspeed trip and test logs
  • Modbus communications
  • Password security protection
  • 12 millisecond response time (independent voted output models)
  • Internal frequency generator
  • Optional Ethernet communication gateway

Woodward ProTech-SX Safety System

The ProTech-SX is a safety PLC with integrated overspeed protection designed to safely shut down any plant process equipment, engine, or steam, gas, or hydro turbine upon sensing a safety event. This stand-alone safety system accepts two speed inputs and seven discrete/analog inputs, uses programmed logic to determine when a safety event has occurred, then issues system shutdown commands and alarms. The ProTech-SX uses five fast-acting, configurable relay outputs and a speed meter output to interface with/command the specific system or device being protected.

Features include:

  • IEC61508 SIL-2 Certified
  • API670 & API612 Compliant
  • Overspeed protection
  • Acceleration & deceleration protection
  • 2 redundant speed inputs
  • Programmable logic
  • Auto test routines
  • Trip valve health monitoring
  • Trip, Alarm & Test logs
  • Modbus communications
  • Password security protection
  • 12 millisecond response time