Services

• Outage support

• Conduit/wiring installation and repair

• Field device installation and checkout

• Field and cabinet wiring modifications and troubleshooting

• Calibration and installation of field instrumentation and devices

• Instrument process tubing installation & modifications (Swagelok, Parker)

• Advanced loop-checking capabilities

• Low voltage electrical experience

• Advanced troubleshooting capabilities

• Reading and interpreting of wiring diagrams and P&IDs

• Self-directed & self-sufficient I&C technicians

• Check out & start up services

• Commissioning

• Documentation, work packages, and technical reports

• QC inspections, check lists, testing, and verification

• Project management

• Installation services for gas and steam upgrades and modifications

• Low voltage electrical

• Roof de-terms and re-terms

• Conduit and cable tray installations and modifications

• Junction box and panel terminations

• Valve servo, solenoid and limit switch de-terms and re-terms

• Motor de-terms and re-terms

• Outage support

• Repair and demolition

• Grounding

• Documentation, work packages, and technical reports

• QC inspections, check lists, testing, and verification

• Project management

• Wiring Support

  • Cable pulls

  • Stripping cables

  • Organize wiring neatly in Panduit

  • Heat-shrink shields

  • Ground hardware to specification

• Terminations

  • Perform tug test on all crimps and terminations

  • Torque each termination to terminal block specification

  • Label each termination with Brady labels

• Calibrations

  • GTS calibration and test equipment is NIST traceable and calibrated on an annual basis

• Testing

  • Continuity

  • Megger

  • Loop Checks/Point-To-Point

• Hardware Installation

  • I/O cards

    • Analog Input/Output (AI, AO), Digital Input/Output (DI, DO), Thermocouple, Servo

  • Relays

  • Controllers

  • Power Supplies

  • Terminal Blocks

  • Fuses

  • Switches

  • Breakers

  • Grounding

An alarm philosophy is a strategy used for the development, implementation, and modification of alarms and the alarm management system. It establishes uniform criteria for all alarm management tasks, with special attention to providing a consistent alarm interface to operators. In addition, this document provides guidance to users of the alarm system to promote safe, stable and reliable operation.

Some key benefits of implementing an alarm management strategy are:

• Continuous monitoring and improvement of the alarm system.

• Improve process reliability and safety.

• Reduce operator distraction and confusion during abnormal situations.

• Present alarms at a rate that the operator can effectively manage.

• Minimize the number of alarms and, ultimately, the costs of abnormal operations and alarm situations.

• Establish consistent expectations for the alarm requirements.

Figure 8. High-, Middle- and Low-Pressure Steam Turbines

What is Foreign Material Exclusion (FME)?

The processes and practices for preventing the introduction of foreign material into a system or component, which may pose economic risk or safety hazard.

• Foreign Material (FM)

  • Any material not part of any system or component as designed. This includes unexpected dirt and debris, tools, equipment combustible materials, machine tailings, grinding particles, paint chips, leak sealing compounds, unapproved chemicals, or any other item or residue which, left inside the system, could adversely affect its operation, components or chemistry.

• Foreign Material Exclusion (FME)

  • The action by personnel that assures a system or component is free of foreign material at the time the system or component is closed up following inspection or maintenance. Poor housekeeping can result in foreign material being introduced into a system or component.

• Field Service / FME Monitor

  • An individual assigned to monitor and/or log the use and movement of tools and materials in and out of an FME Zone when required. An FME Monitor may be assigned collateral duties as long as these duties do not interfere with the monitoring duties and responsibilities.

• FME Material Control Log

  • A log used to keep track of items such as tools and parts moving in and out of an FMEA. Guidelines for completion of the PBF-9157 form are noted on the back of the form. Items physically too large to fit into the open component system are exempt from logging requirements.

Instrumentation services include but are not limited to removal (de-term), installation (re-term and calibration), QC inspections, troubleshooting, testing, and commissioning.

Typical instruments are the following:

• Fire Suppression for enclosure roof removal

• Valve solenoids, servos, and limit switches

  • • Case Cooling Valves (CCVs)

    • Fuel Gas Pressure Control Valves (PCVs)

    • Purge Air Valves

    • Sweep Air Valves

    • Bleed Valves

    • Turbine Cooling Air Valves

    • Reheat Stop Valve (RSV)

    • Intercept Control Valve (ICV)

    • Main Stop Valve (MSV)

    • Main Control Valve (MCV)

• Combustor Pressure Fluctuation Monitor (CPFMs) / Combustion Dynamics Monitoring (CDMs)

• Accelerometers

• Combustor Flame Detectors

• Igniters

• Bearing Vibration Sensors

  • • X- & Y- Vibration Probes

    • Key Phasor

    • Velomitors

    • Speed Proximitors

    • Axial Shaft Position Differential Expansion Proximitors

• Pressure, Flow, and Differential Transmitters, Gauges, and Switches

  • • Fuel gas main A & B, pilot, and top hat filter DPs

    • Lube Oil PTs

    • Fuel Oil PTs

• Auxiliary Electrical Equipment

  • • Heater

    • Enclosure Lighting

    • Turning Gear Enclosure

• Thermocouples and RTDs

  • • Disc Cavity Thermocouples (DCTs) / Wheel Space Thermocouples

    • Blade Path Thermocouples (BPTs)

    • Compressor and Turbine Casing Metal Thermocouples (CMTs)

    • Rotor Cooling Air Thermocouples (RCAs)

    • Bearing Metal Thermocouples

    • Bearing Drain Oil Thermocouples

    • Inlet Air RTDs

    • Exhaust Gas Thermocouples