PORTABLE EQUIPMENT FOR DETECTION OF BOTH MOISTURE CONCENTRATIONS IN OIL AND TEMPERATURE HUMIDITY

摘要

A portable device for measuring temperature and humidity and moisture concentration in insulating oil is provided to facilitate the handling and improve economic efficiency by using the conventional temperature and humidity sensor and micro heater. A portable device for measuring moisture concentration in insulating oil comprises a temperature and humidity sensor(10) detecting relative humidity by reacting to the moisture in the insulating oil, a micro heater(12) which is attached to the lower side of the temperature and humidity sensor in order to maintain constant temperature and humidity of the temperature and humidity sensor, a power supply unit(25) which supplies the power to the temperature and humidity sensor and the micro heater, a signal processing unit(13) in which the relational equation determining the moisture concentration from the measured relative humidity is stored, a temperature controller(26) controlling the temperature of the micro heater, and a display(11) showing the moisture concentration in the insulating oil.