Deep Online Analysis Of Dielectric Parameters For Lubricants With An Innovative Oil Sensor System

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Prof. Dr.-Ing. Manfred R. Mauntz
CEO and Head of Development and Research
cmc Instruments GmbH

The requirements in the renewable energy for large industrial gearboxes as installed in wind turbines on-/ offshore rise. Ever more flexibility at a maximum operational reliability and a long life time are required of them at the same time, so the requirements for the oil and the oil condition monitoring grow correspondingly. This presentation provides information about the potential of an online oil condition monitoring system to give a solution to the mentioned priorities for the energy sector. The focus is set to industrial gearboxes but the possibilities in monitoring of related applications are also addressed.

The online system enables damage prevention of the gearbox by an advanced warning time of critical operation conditions and an enhanced oil exchange interval realized by a precise measurement of the electrical conductivity, the relative permittivity and the oil temperature. The new parameter WearSens® index is introduced. The mathematical model of this index combines all measured values and its gradients in one single parameter for a comprehensive but intuitive monitoring to prevent wind turbine gearboxes from damage. Corrective procedures and/or maintenance can be carried out before actual damage occurs. Raw data and WSi results of wind turbine installations with different lubrication oils are shown.

Prof. Dr.-Ing. Manfred Mauntz received his diploma in Engineering from the University of Kaiserslautern in 1982, earned a doctorate with honors in Engineering from the University of Siegen and is a Professor at the Szent Istvan University (Faculty of Mechanical Engineering) in Hungary. He has worked extensively in the analytical and process instrumentation industry. At AEG AG, Germany he was Head of the Department protection and control.

He is the founder, CEO and Head of Development and Research of cmc Instruments GmbH which develops and manufactures analytical and measurement systems.