How can we achieve a decarbonized future? Join our webinar to dive into the current and future challenges of our energy infrastructure, the implications of renewable penetration and the latest energy supply and delivery technologies.
Learn how generator health monitoring (GHM) helps deliver continuous, accurate operational data in an easy-to-use format that enables plant operators like you to make smarter maintenance decisions.
Get a closer look at the first purpose-built hydrogen-burning power plant in the United States—powered by GE Gas Power technology.
Facing the energy trilemma? Our webinar discusses HA tech solutions to help with demand and decarbonization in Asia and EMEA. Register Today!
Discover how an integrated approach to solution architecture protects IT, OT, and other essential systems to keep operational processes going. Assessing threats at every level reduces risk and enhances focus on top priority areas.
Register today to learn how to achieve lower turndown and reduce maintenance costs with GE’s latest flexibility solution—a variant of the Dry Low NOx (DLN) 2.6+ combustion system that adds Axial Fuel Staging (AFS) technology for further turndown capability.
Today’s peak generation environment and supply chain disruptions are making it harder than ever to keep your HRSG running reliably, efficiently, and affordably. What can you do to mitigate these challenges today and tomorrow?
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Want to learn more about how one company was able to expand its hydrogen capabilities? Join us for our latest webinar featuring Dr. Jeffrey Goldmeer and special guests from Long Ridge Energy.
Learn how the generator “bubble” from the early ‘90s and the projected power demands of the future are making planning ahead more important than ever, especially when it comes to your generator maintenance.
Join our webinar and Q&A hosted by our FieldCore CEO Amir Hafzalla where we’ll discuss lessons learned, season highlights and new innovative technologies.
As a plant manager, can you continue to reduce emissions and maintain profitability and reliability? Join our webinar with Jay Bryant to see how you can get the most out of your 7E.
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Operators and plant managers are experiencing rapid change as the evolving energy landscape impacts their power plants’ operating profiles. The ability to adapt and be flexible is key to remaining relevant.
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These days, we’re all trying to do more with less, but GE can help. Our upgrades and modernizations can help you get more from your existing assets. Discover the possibilities with our interactive upgrades selector.
Facing the energy trilemma? Our webinar discusses HA tech solutions to help with demand and decarbonization in Asia and EMEA. Register Today!
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Listen as Dr. Jeffrey Goldmeer and Brian Gutknecht set the stage for the exciting conversations to come in this season. With topics ranging from transportation and buildings to agriculture and education, there are conversations in this next season that you don’t want to miss!
Understanding the condition of your generator is crucial to maintaining its reliability. GE offers a wide range of generator maintenance solutions, covering all cooling technologies, all generator sizes, and all OEMs. Local presence, global expertise and a strong heritage are the basis of our universal portfolio of gas generator service solutions.
GE provides a complete range of cost-effective generator services spanning from inspections to complete flange-to-flange retrofits for air-, hydrogen-, and liquid-cooled generators rated from 20 to 1090+ MVA. GE has performed hundreds of rotor and stator rewinds and responded to thousands of planned and emergent outages with a global pool of generator specialists to serve customer needs.
125 years
of generator experience
1000+ rewinds
over the last decade
1.7+ GW
of generator uprates
Your generator is the driving force behind your gas turbine equipment, so it’s important to make sure it will continue to run reliably and efficiently. The energy industry is changing rapidly, requiring plants to cycle in new and different ways to address the increase of renewable power. These shifts are placing ever-increasing stress on all power plant equipment, and generators are no exception. With many power plants now nearing the end of their operating capacity, it’s more important than ever to reach out to GE well ahead of your planned outage to address your generator maintenance needs.
Let’s say you have a high-risk generator, and you plan your maintenance well in advance. These are some of the benefits you could expect to realize:
Learn how generator health monitoring (GHM) helps deliver continuous, accurate operational data in an easy-to-use format that enables plant operators like you to make smarter maintenance decisions. Our GE experts will take you on a deep-dive exploration of GHM solutions and discuss successful experiences from the fleet.
Learn how the generator “bubble” from the early ‘90s and the projected power demands of the future are making planning ahead more important than ever, especially when it comes to your generator maintenance.
Learn how GE’s generator services can address market and plant mission changes that are affecting your generator’s performance. Join our webinar and live Q&A session and be part of the discussion!
With an aging generator fleet that is cycling more often than before, many customers are facing a challenge: How to ensure that routine maintenance doesn’t extend the duration of their outage. Watch our webinar to learn about GE’s rotor exchange program.
With a generator rotor removal and replacement from GE, you can swap rotors that need repairs for refurbished, off-the-shelf rotors—an exchange we can perform in less than 10 days.
Help maintain continued reliable operation of your gas generator with a range of generator field rewind options to fit your needs.
Stator upgrades include rewinds for any make of generator to help increase reliability and availability.
Generator Health Monitoring is a fully-integrated and modular online remote monitoring system for air-cooled, water-cooled, or hydrogen-cooled gas generators.
Our generator services can keep your generator up and running at the performance level you need.
Online and offline monitoring and inspections can help you understand your generator’s condition while in operation and plan accordingly.
GE’s global presence allows you to find nearby repair shops or site repair solutions to help maintain the reliability of your generator.
Collaborate with us to create the best spare parts strategy for your installed generator assets to lower downtime.
Upgrading your generator with the latest technologies can help extend its service life. We have a wide range of options.
We flip a light switch. We cook lunch. We charge our phones. We walk brightened cities at night. All this versatile power comes from generators big and small. But how do they really work? Brush up on your generator knowledge with our “Generators 101” feature, which should answer all your generator-related questions—from what a generator is and how it works, to how they work with the gas turbine and why hydrogen is such an effective way to cool a generator.
50%
reduction in completion time
17 days
Project completion
“We are very pleased to work with GE to help us successfully complete our generator stator rewind project so quickly, which allowed us to reduce the length of our maintenance outage and return the generator to service as quickly as possible.”
Mr. Thanawat Siwasoponpong (Co-generation power plant division manager of Sahacogen (Chonburi) Public Company Ltd.)
GE’s generator services team completed Thailand’s first fast stator rewind of Sahacogen Public Company Ltd.’s GT-1 Generator at its natural gas co-generation plant in the Chonburi province. The upgrade took half the time designated for completion, a rare accomplishment for a stator rewind.
The main driver for generator issues is thermal effects from load shifting. When you need to start and stop the equipment often and you’re operating in partial load, the resulting load shift changes the thermal profile within the stator and the rotating field—which in turn causes the components to shift. Here’s a look at some typical cyclic rotation issues on the rotating field.
With the shift toward more cyclic operation in the fleet, GE undertook an enhancement program to provide customers with a solution to reduce risk of forced outage, lower O&M costs and avoid premature rewinds. GE now offers cyclic duty packages for both the stator and rotating field windings. Our patented “Flex Pack” offerings, for example, help reduce the negative effects of cyclic operation
Download the Flex Pack fact sheet
One of the main sources of service problems on the generator rotor is the collectors. Having a Collector Brush Monitoring system will aid operators in knowing if there is a potential problem before it happens. GE offers a monitoring system to go along with our Enhanced Brush Holder Rigging system.
On the generator stator side, the insulated copper winding is the number one reason for service issues. A Partial Discharge Analysis (PDA) is a great way to track and trend the health of your winding over its lifetime. PDA tests can be done periodically, or on a real-time basis, depending on system options. GE offers this option, along with others (like shorted turns monitoring and vibration detection) as part of the Generator Health Monitoring System. If you would like more information, please contact your local sales representative for additional detail and pricing.
The main reasons for rotor rewinds are grounds, shorts, main terminal stud failures, high vibrations, thermal sensitivity, insulation migration and damage, and amortisseur migration and damage. If you unit is experiencing any of these issues, it’s probably time for a rotor rewind.
The top reasons for stator rewinds are ground, shorts, operating the unit outside of GE’s operations protocol, bar armor and/or insultation damage and degradation, collateral damage/FOD, and bar abrasion. If any of these things is happening with your equipment, contact us. We know what to do!
GE’s Generator Health Monitoring (GHM) offering can help avoid unplanned downtime by allowing you to make informed decisions based on accurate operational and inspection data. GHM is a fully integrated and modular remote monitoring suite available for any type of air-cooled, water-cooled, or hydrogen-cooled power plant generator that provides continuous inspection and condition assessment, as well as early identification of any issues. One of the most important things to monitor and test—which is part of our GHM offering—is the flux probe, so even if you aren’t taking advantage of GE’s Generator Health Monitoring, we would recommend doing periodic flux probe testing on your generator.
GE maintains a database of information on almost all the units in our fleet. This allows us to generate predictive modeling data to help customers understand the risk levels of their units. If you would like to get a closer look at your generator’s condition and start planning for any future maintenance needs, we would be happy to share this information with you. Contact your local sales representative today!
The life expectancy differences between a base-loaded unit and a heavily cycled unit is represented in the curve below. The upper bound limit shows a unit with more of a base-loaded operating profile, while the lower bound limit represents a unit that has a heavier load cycle (daily stops/starts, greater than average running hours, part load operation, load shifting, etc).
In the early 2000s, the power producing industry had a significant number of power-producing machines installed to account for the substantial increase in energy demand. As such, these machines are coming up to and passing the 20 years in active service milestone. Predictive models are estimating the servicing of many these machine’s generators in the near future with many at the same time.
In-order to prepare for this maintenance “bubble”, we are increasing our capacity in our shops as well as increasing the ready-to-serve inventory. We are currently experiencing increased volume and over capacity at peak times. If you wait to plan your maintenance, there’s a good chance for delays in-order to provide the services you need. Plan and lock in your maintenance needs now! Contact GE.
Take a closer look at our generator solutions.
Generator services FAQ #1
What is the generator “bubble” and who will be impacted?
Generator services FAQ #2
So your generator is at risk, what steps can you take to be proactive?
Generator services FAQ #3
What generator life extension programs can be implemented?
Generator services FAQ #4
How to decide if new copper coils are needed vs. reusing the originals in a rewind?
Our gas generator services portfolio
GE offers a wide range of generator maintenance solutions, covering all cooling technologies, all generator sizes, and all OEMs.
See a generator fast stator rewind in action
One technology and one process for any type of conventionally-cooled generator.
What can a generator condition assessment do for you?
A generator condition assessment should be a strategic focus for every plant owner.
GE Gas Power engineers cleaner, more accessible energy that communities depend on to power growth and prosperity.
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