Multifunctional line selection device for transformer test

Abstract

The utility model relates to a multifunctional line selection device for a transformer test. The multifunctional line selection device comprises an insulating bottom plate, a device main box body, eight wiring terminals for a voltage transformer, a 4P double-throw knife switch, a 4P short-circuit knife switch, seven indicating lamps in two rows, a power panel and a single-chip microcomputer control module, the insulating plate is of a cuboid structure, is made of plastic or phenolic resin and bakelite, can tolerate 40kV direct-current high voltage, and can meet the requirement of insulation resistance measurement; the device has a box body and is of the cuboid structure, the bottom plate is an insulating piece, and the other five plates are insulating bakelite pieces; the insulating bakelite pieces are provided with holes and are carriers of the device frame structure, the electrical elements and the circuit board. The internal space of the box body can also be used for storing commonwires, and each door of the box body is connected to the box body through a hinge. The method has the advantages that the operation is simple, procedures can be reduced, time is saved, and the workingefficiency is improved. By sharing a test channel, each instrument is switched on through time-sharing line selection, so that the electrical contact frequency is reduced, and the operation efficiency and safety are improved.

Description

Technical field[0001]The invention relates to the field of power equipment, in particular to a multifunctional line selection device for transformer testing.Background technique[0002]Transformers are important equipment in the power system. In order to confirm their quality before being put into operation, their health during service and after overhaul, necessary tests are required. Generally, different test lines need to be replaced according to different test items. The transformer and the test instrument personnel work closely together to complete it, which is not efficient and has certain safety risks.Summary of the invention[0003]The purpose of the present invention is the current situation of multiple round-trip connections between the transformer and each instrument during the transformer test, such as low efficiency, many wires, frequent electrical contacts, and high safety risks. Through the application of the device, the primary wiring between the transformer and the devic...

AI Technical Summary

Problems solved by technology

Generally, it is necessary to replace different test lines according to different test items. The transformer and the test instrument are closely coordinated by the respective personnel, which is not efficient and has certain safety risks.

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