Temperature Rise Laboratory

The temperature rise test is considered one of the most important tests for electrical equipment. The purpose of this test is to assess the ability of various parts of a device to withstand the heat generated by the application of voltage and electric current under normal operating conditions or full load conditions. This test can prevent hazards such as fires or damage to the equipment or user. During this test, the temperatures of different parts of the equipment, such as conductors and their connections, insulators, windings, and accessible surfaces, are measured and compared with the permissible values specified in the product standards.

The temperature rise laboratory at Energy and Power Industries Laboratories Company (EPIL) is equipped with a set of transformers capable of continuously injecting a three-phase alternating current of up to 10,000 amperes. Therefore, equipment such as power plant busbars, various substations, bus ducts and electrical panels, circuit breakers, various transformers, rectifiers, and more, at different levels of electricity generation, transmission, and distribution, are tested in this laboratory. This laboratory is also equipped with temperature monitoring and measurement devices, such as temperature recorders, thermocouples, and thermal cameras, and the tests are conducted by experienced experts.

It is worth mentioning that, given that the temperature rise test is a type test and includes various kinds of electrical equipment, and in line with customer satisfaction and expediting laboratory services, another laboratory with the capability of applying up to 2000 amperes three-phase current was established and activated in 2021.