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- Title
Calculation of Basic Characteristics of the Humidity Sensor Transformer Oil.
- Authors
Protsenko, O. R.; Trotsenko, Ye. O.
- Abstract
This article outlines the method of calculating the sensor coefficients based on the sensory element of the insulating paper and highlighting features of this calculation. The sensitive element of the sensor belongs to conductometric type of the transducer "moisture-resistance". The sensor is designed for use in the automated control moisture in transformer oil power transformers and reactors. To calculate the empirical coefficients that define the relation between the resistance of the sensing element sensor, humidity and temperature of transformer oil, use of least-squares procedure has been proposed. We approximate measurements results of electrical resistance sensor as an exponential function of two variables -- temperature and humidity oil. Using the proposed method, we calculate the coefficients of samples and humidity sensor. The calculations reveal that measurement of the temperature of transformer oil and impedance sensing element can help determine moisture content of transformer oil in which it is located. We outline the results and recommend how main characteristics of the humidity sensor of this type of transformer oil can be calculated. Hence it can be used as an algorithm for automated humidity control transformer oil of power equipment.
- Publication
Naukovi visti NTUU - KPI, 2013, Vol 91, Issue 5, p23
- ISSN
1810-0546
- Publication type
Article