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Steam Turbine Inspection & Repair Services

Turn-Key Inspections

Power Services Group (PSG) has the ability to provide full turnkey inspections on steam turbine generators for most OEM manufacturers. PSG provides total turnkey outage performance including technical direction, engineering, project management & coordination, supervision, labor, tooling, repairs, parts sourcing and/or manufacturing, and start-up support. We support fossil and nuclear steam turbines ranging from 1MW to 1,300MW for all major OEMs. We service all industry types including, but not limited to: industrial, paper/pulp, marine, steel/aluminum, chemical and petrochemical, utility, nuclear, and independent power producers.

Contact Us today to learn how we can help you with your next steam turbine project.

Services Provided: Common Repair Services:
  • Open, Clean, Inspect, Close (Outage Services)
  • Valve & Bearing Inspection and Repairs
  • Steam Path Component Inspection and Repairs
  • Major Overhaul Planning and Execution
  • Shop Repair Services
  • Field Repair Services
  • Forced Outage Responsiveness
  • Multi-Year Service Agreements
  • Engineering/Consulting
  • Reverse Engineering
  • Parts Manufacturing
  • Generator Inspection, Testing, and Repair
  • Running Condition Assessments
  • Unit Installation/Relocation
  • Nozzle and Diaphragm Refurbishment
  • Blade Ring Refurbishment
  • Seal and Packing Machining and Replacement
  • NDE Services
  • Dish Removal and Re-rounding Services
  • Blade/Bucket Replacement
  • Erosion Shield Replacement
  • Lashing Lug Weld Repair
  • Tennon Welding and Refurbishment
  • Cover Replacement
  • Bore Plug Removal and Installation
  • Balancing Services
  • Valve Reconditioning
  • In-House Nitriding Services
  • Stellite Application Services

 

 

 

Steam Turbine Inspection & Repair Services

Turn-Key Inspections

Power Services Group (PSG) has the ability to provide full turnkey inspections on steam turbine generators for most OEM manufacturers. PSG provides total turnkey outage performance including technical direction, engineering, project management & coordination, supervision, labor, tooling, repairs, parts sourcing and/or manufacturing, and start-up support. We support fossil and nuclear steam turbines ranging from 1MW to 1,300MW for all major OEMs. We service all industry types including, but not limited to: industrial, paper/pulp, marine, steel/aluminum, chemical and petrochemical, utility, nuclear, and independent power producers.

Services Provided: Common Repair Services:
  • Open, Clean, Inspect, Close (Outage Services)
  • Valve & Bearing Inspection and Repairs
  • Steam Path Component Inspection and Repairs
  • Major Overhaul Planning and Execution
  • Shop Repair Services
  • Field Repair Services
  • Forced Outage Responsiveness
  • Multi-Year Service Agreements
  • Engineering/Consulting
  • Reverse Engineering
  • Parts Manufacturing
  • Generator Inspection, Testing, and Repair
  • Running Condition Assessments
  • Unit Installation/Relocation
  • Nozzle and Diaphragm Refurbishment
  • Blade Ring Refurbishment
  • Seal and Packing Machining and Replacement
  • NDE Services
  • Dish Removal and Re-rounding Services
  • Blade/Bucket Replacement
  • Erosion Shield Replacement
  • Lashing Lug Weld Repair
  • Tennon Welding and Refurbishment
  • Cover Replacement
  • Bore Plug Removal and Installation
  • Balancing Services
  • Valve Reconditioning
  • In-House Nitriding Services
  • Stellite Application Services

 

 

 

Steam Turbine Inspection & Repair

Power Services Group (PSG) has the ability to provide full turnkey inspections on steam turbine generators for most OEM manufacturers. PSG provides total turnkey outage performance including technical direction, engineering, project management & coordination, supervision, labor, tooling, repairs, parts sourcing and/or manufacturing, and start-up support. We support fossil and nuclear steam turbines ranging from 1MW to 1,300MW for all major OEMs. We service all industry types including, but not limited to: industrial, paper/pulp, marine, steel/aluminum, chemical and petrochemical, utility, nuclear, and independent power producers.

Paper & Pulp Industry Turbine Experts

Looking for a Paper & Pulp Industry Turbine Specialist?

We have 34 years of experience inspecting and repairing turbines for the Paper & Pulp Industry

We are excited to have our recent digital advertisement in the July edition of the TAPPI (Technical Association of the Paper & Pulp Industry) newsletter! If you visit the link below you can view our advertisement and the newsletter in its entirety:

https://multibriefs.com/briefs/tappi/TAPPI070820.php

 

 

Valve & Bearing Inspection

Turbine Generator Maintenance (TGM) was contracted by an industrial customer in the United States to perform a valve and bearing inspection on their General Electric (GE) condensing steam turbine and hydrogen-cooled generator. The turbine and generator set is of a four bearing design.

During the project, a Safety Meeting was held prior to the start of any work. The Safety Meeting topics were based on work activities to be performed during the shift. In addition, hazardous observations which could impact the safety of the team were discussed and resolved. Prior to performing work, a Job Safety Analysis (JSA) form was completed by the work team. This project had no accidents and no first aide incidents.

The generator rotor remained in the stator and both of these components, the generator rotor and generator stator, received visual inspections and electrical testing.  The journal bearings were removed and visually and dimensionally inspected. The pedestal oil deflectors were removed and visually and dimensionally inspected. The #3 outboard (OB) and #3 and #4 inboard (IB) oil deflectors showed to have excessive clearance. These deflectors were conveyed to a local machine shop for repairs. The remainder of the deflectors were cleaned and returned to service.

The inlet control valves (CV) were removed, cleaned and inspected. The valve seats and poppets were found in acceptable condition, CV’s 3, 4, 5 and 6 received new stems sourced from customer spares. The valve bushings showed to be worn and were recommended for be replacement at the next planned outage. The main stop valve (MSV) and operator were disassembled, cleaned and inspected. All components were approved for reassembly and were returned to service.

The lube oil system main, AC and steam driven oil pumps were disassembled and received inspections. The main oil pump (MOP), which is driven by the turbine rotor, was returned to service with no repairs being necessary. The steam driven auxiliary oil pump (AOP), was found to have acceptable clearances and was reassembled and returned to service.  One row of carbon steam packing was found to be damaged and was replaced. The AC driven oil pump was found to have acceptable clearances and was reassembled and returned to service. The lube oil reservoir was opened and cleaned.

The generator coolers and air ejector condensers were opened on the water side for inspections. The tubes were rodded out, flushed and vacuum tested. All were OK and the components were reassembled. The lube oil coolers were opened and cleaned.  The system trip devices were cleaned and received visual inspections; all linkages were checked for wear and proper freedom of movement. The devices were latched and checked for tripping operation. The governor speed control trip latch oil pressure trip cylinder piston rings were found to be seized. New rings were manufactured and installed.

Upon startup, the unit operation was accepted and the unit placed online.  Our personnel demobilized the job site and were released to travel the following morning.

Another successful project and satisfied customer.

Steam Turbine Major Inspection LONG

Steam Turbine Major Inspection SHORT