Report on IR Thermography measurements on HPP Peruca
Abstract
Thermal imaging tests are carried out preventively, with the aim of early detection of the causes of dangerous heating. In this way, it is possible to intervene in a timely manner and prevent major interruptions in operation, major damage, breakdowns, and related large financial costs. In electrical engineering, testing of electrical equipment most often indicates problems caused by current and resistance relationships. In general, “hot spots” in electrical circuits appear as a result of insufficiently tightened, oxidized or corroded connections, but also due to improper operation of the element of the power plant itself. Such heating spots can lead to unwanted interruptions in operation, major damage to the plant and breakdowns that are accompanied by large financial costs. The development of technology has led to the measurement method so-called thermal imaging, which can detect and prevent failures caused by elevated temperatures. This measurement method was derived from military technology by developing equipment for the location of heat radiation sources without direct contact with the object. The development of technology has exploited the physical property of materials that any body warmer than absolute zero is a source of electromagnetic (infrared) radiation. Radiation is a consequence of vibrations caused by the chaotic thermal motion of molecules in a body of matter. According to classical thermodynamic theory, at a temperature of absolute zero (0 K) there are no vibrations and consequently no radiation. This method of thermovision scanning of electromagnetic (infrared) radiation aims to examine the thermal distribution of temperature on the external visible surfaces of electrical equipment and plant parts.
