Online bearing-gap monitoring in wind turbines
Measure bearing gaps while the wind turbine is operating, avoiding inspection stoppages required by tactile measurement. An eddyNCDT 3005 eddy-current measuring system measures the gap; the sensor is permanently connected to its controller by a 1 m cable.
Measure bearing gaps while the wind turbine is operating, avoiding inspection stoppages required by tactile measurement. An eddyNCDT 3005 eddy-current measuring system measures the gap; the sensor is permanently connected to its controller by a 1 m cable.
Application challenge
Measure bearing gaps while the wind turbine is operating, avoiding inspection stoppages required by tactile measurement.
Measurement conditions
Typical oil pressure in the bearing is stated as 1–2 bar. This is an application condition, not a sensor pressure rating.
Measurement method and system
An eddyNCDT 3005 eddy-current measuring system measures the gap; the sensor is permanently connected to its controller by a 1 m cable.
Documented performance
- Maximum measuring range: up to 6 mm (eddyNCDT 3005 sensor described in the application)
- Typical oil pressure at bearing: 1 to 2 bar (wind-turbine bearing application)
System components named by the manufacturer
- eddyNCDT 3005
Result
The source describes use in turbine test benches and condition monitoring to inform maintenance intervals and component design.
The problem
Measure bearing gaps while the wind turbine is operating, avoiding inspection stoppages required by tactile measurement.
Conditions
Typical oil pressure in the bearing is stated as 1–2 bar. This is an application condition, not a sensor pressure rating.
The method
An eddyNCDT 3005 eddy-current measuring system measures the gap; the sensor is permanently connected to its controller by a 1 m cable.
The result
The source describes use in turbine test benches and condition monitoring to inform maintenance intervals and component design.