Gas generator testing and inspection services
Explore our industrial generator inspection services
Generator testing and inspections help ensure reliable, safe, and efficient operation by identifying and addressing potential issues before failures occur. The process involves detailed evaluations, including visual inspections, performance tests, and electrical assessments, to optimize performance and extend equipment lifespan.
Generator airgap robotic inspection with rotor in-situ (offline)
GE Vernova’s offline generator inspection solutions include The latest robotic tool technology that can perform a complete generator air gap inspection program with the rotor installed.
Our inspection tool can perform the following assessments:
- Visual inspection of the rotor surface
- Visual inspection of the stator surface
- Stator wedge tightness verification
- Stator low flux magnetic test
Generator retaining ring inspection scanner (offline)
GE Vernova’s generator retaining ring scanner is a robotic inspection tool engineered for detecting stress corrosion cracks without the need to remove the retaining rings from the generator. The inspection only requires minimal dismantling and can be carried out with the rotor in-situ or removed.
Generator testing and inspection program (offline)
GE Vernova’s generator testing and inspection program is a set of modular solutions to thoroughly assess the condition of your generator during an outage. Based on decades of experience across one of the largest installed fleets, our generator screening experts will provide you with a detailed analysis and recommendations for more reliable operation.
The inspection’s scope will match the allowed outage time and take into account the generator model in order to make sure all identified areas of concern are inspected.
Example tests include:
- Stator electrical tests (IR, PI Index, DC and AC Hipot)
- Stator low and high magnetic tests including PULSAR test
- Stator cooling water flow test (UT Flow)
- Stator endwinding vibration testing (Bump test)
- Rotor field electrical test (IR, RSO, DC Hipot)
- Rotor hydrogen seals pressure test
- Stator radial wedging test
- Brushless exciter diode test
Featured inspection
Rings off inspection of a gas turbine generator
Safeguard your gas and steam turbine generator from unexpected failures, extend its operational life, and help ensure optimal performance, reliability, and safety.
What is a rings off inspection?
This repair is a detailed evaluation process of a gas and steam turbine generator rotor, focusing on the rotor end-rings, which are critical components responsible for holding the rotor windings in place. The inspection involves removing these rings to thoroughly examine the underlying components for any signs of wear, damage, or degradation that could compromise the generator's performance.
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How does a rings off inspection work?
Disassembly
The process begins with the careful removal of the rotor end-rings. These rings are typically made of high-strength materials designed to withstand the stresses of operation but can degrade over time.
Visual and non-destructive testing (NDT)
Once the rings are off, technicians perform a visual inspection, looking for signs of wear, corrosion, or cracks. Non-destructive testing methods such as ultrasonic or eddy current testing may also be used to detect subsurface flaws.
Inspection of rotor components
With the rings removed, technicians gain access to the rotor windings, wedges, and other components. These parts are inspected for wear, potential movement, or signs of electrical or mechanical failure.
Repairs and reassembly
If any issues are detected, necessary repairs or replacements can be made. Once the inspection and repairs are complete, the rings are reinstalled, and the rotor is reassembled for testing and return to service.
Customized gas solutions
Gas and combined-cycle generator training
GE Vernova can provide customized training solutions to meet your individual needs, covering introductions for new employees, and development programs for your talents as well as individual training courses to bring your teams up to speed to safely execute their tasks during daily operations and generator field maintenance.
- Hands-on generator training courses based on simulations of real cases (portable simulator)
- Execution on GE Vernova premises or onsite
- Experienced instructors for each technical scope
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