FIELD: electricity.SUBSTANCE: invention is related to electric instruments and intended for reliable and safe testing of measuring transformers. Essence of the invention: the test set is made of n modules, each of them containing a case of insulating material with the following equipment installed into its slots: cover with closing contact made as a jumper, a contact system formed by identical spring-loaded modules, clamps for connection of outer conductors, closing contact made as a plate with pluggable jumper inserted into its opening. Each spring-supported module consists of interconnected resilient and current conductive plates. The resilient plate is made with multiple bends at a certain angle and comprises contact pads; two contact pads are intended for interaction with the closing contact of the cover while the third one is connected to the closing contact with pluggable jumper inserted into its opening. The resilient and current conductive plates are interconnected at one end by means of ledges and slots. The closing contact with pluggable jumper is mounted in the central part of the body at the opposite side in direction to the cover.EFFECT: providing strict sequence for connection of all contacting elements, simplified operation of the contact system, reduced labour intensity of all mounting works, provision of reliable vibro- and shock-resistant connection, provision of heat resistance for the contact system.5 cl, 6 dwg
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