Method and apparatus for testing of current transformers by means of high current pulse

摘要

In order to the operational capability of a conventional current transformer to be able to monitor at low cost, is a device for testing a current transformer having a test current conductor (1) and a test pulse circuit (5), the energy storage means (6), charging means (13) for charging the energy storage device (6), and a switching element (7) for discharging of the energy accumulator via the test current conductor (1), is provided, so that a discharge current in the test current conductors can be generated, whereby an evaluation unit for detecting a current produced by the discharge current transducer signal is provided.