Measurement and testing
Published over 13 years ago. See the latest and most current information on Measurement and testing.
Oil quality in high voltage transformers is critical to both safety and efficiency. For many years Dissolved Gas Analysis (DGA) has been used to monitor oil quality. But what if there was something more sensitive to change, less expensive, easier to install and with a lower cost of ownership?
OilQSens® from cmc Instruments GmbH is a unique, new oil condition monitor, online and continuous.
In the power supply and distribution business, asset protection is key to profitability. Predictive maintenance clearly has benefits over rigid inspection and maintenance intervals. OilQSens® is highly sensitive, showing changes in oil prior to the gas formation that can be detected by DGA.
cmc Instruments believe that OilQSens® is set to become the new standard for continuous monitoring of transformer oil quality. It accurately shows the aging of oil and also directly correlates to water in oil. One of the patented features is the temperature compensation. Readings are fully temperature compensated for accurate comparison of data over long periods of time.
OilQSens® is easy to install or retro-fit. The decentralised, web based monitoring system makes results available anywhere in the world.
cmc Instruments GmbH manufacture trace moisture analysers, gas generators, filter systems for process gases and the new OilQSens® and WearSens®- patented, online system for oil condition monitoring in different applications.
PIN 27.2 Apr/May 2026