IRIS POWER

Air Gap Monitoring

Air Gap monitoring on Hydro Generators can help identify many geometric problems including misalignment, magnetic unbalance, rotor shorted turns, loose pole and stator movement that would otherwise lead to damage from magnetically induced heating or rotor-to-stator rub.

Condition Based Monitoring - Air Gap Monitoring

Air gap is the distance between the outside diameter of the rotor and the inside diameter of the stator. Monitoring the air gap in hydro generators is important as both the stator and the rotor can be quite flexible, and their shape and location are influenced by operating forces. Off-center or out-of-round conditions will at least reduce operating efficiency and, in more severe cases, can lead to damage from magnetically induced heating or result in a rotor-to-stator rub.

Online monitoring of the air gap between the rotor and stator in a hydro generator can provide significant and timely information about its physical condition as it changes over time and with different operating conditions. Iris Power makes it possible to monitor the status dynamically during machine operation. Air gap issues can be identified and corrective action taken well before failure.

The Iris Power solution includes capacitive air gap sensors, instrument and diagnostic software.  Additionally, the platform can be expanded to include rotor magnetic flux as well as shaft and bearing vibration for a more comprehensive monitoring system of the geometry and dynamic properties of hydro generators.

Iris Power - Hydro Generator Condition Based Monitoring - Vibration

Request More Information

Air Gap Monitoring Products

FILTER BY ASSET APPLICATION:

Online Senors

Online Instruments For Continuous Monitoring

Have a Question?

Looking for more information or need a quote? Please fill out the contact form below and we will get back to you shortly.

Air Gap Monitoring Resources

BROWSE THE RESOURCE LIBRARY
CASE STUDY

Articles, Technical Papers, & Case Studies

Dynamical Loads and the Consequences in the Rough Load Zone Operation – Case Studies

SUMMARY Hydro units powered by Francis turbines often experience operational zones with significant hydrodynamical and mechanical instabilities. These zones are referred to as the Rough Load Zones (RLZ). Typically, ...

Looking for more Information

Sign up to receive our latest whitepapers, webinars, new product information, product updates and more.