Leine Linde reveals condition-monitoring slip ring

GERMANY: Leine Linde Systems has launched a wind-turbine slip ring that can analyse its condition and predict its remaining service life.

The slip ring monitors its own condition
The slip ring monitors its own condition

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The company claims that its ADSR product is the first pitch slip ring to come with an integrated diagnostic system that continuously analyses the condition of the component and predicts a fault before it occurs.

A slip ring is a device designed to maintain electrical connections between rotating and static parts of a machine. They are used in a number of elements of wind turbines including the hub and blade pitch systems.

Leine Linde believes that this will make planning wind turbine maintenance more efficient by reducing unexpected downtimes.

The slip ring's diagnostic system monitors how well the contact system and other key functions are being performed.

Integrated sensors measure vibrations, the level of voltage and current, number of revolutions, internal and external humidity, and temperature.

This information is then sent to a web browser-based monitor so technicians can check the component's condition remotely.

The product will be presented in detail at EWEA 2014 in March in Barcelona.

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