CURRENT TRANSFORMER TESTING: MODERN METHODS IN CURRENT TRANSFORMER TESTING

摘要

Different test devices and methods are used in the market to verify the performance of current transformers during development, production, installation and maintenance. This article describes an innovative solution to test current transformers at all lifecycle stages by using a revolutionary testing method called "the modeling concept." After installation, current transformers are typically used for 30 years. In order to guarantee a reliable and safe operation over the life time of the CTs, a high level of quality during design phase, manufacturing process, and installation is essential. Therefore, several quality tests are performed from development to installation. After installation, CTs should be tested on a regular basis to ensure correct functioning over the entire life time.