Test loading test device for intermediate frequency power supply and commercial frequency power supply

Abstract

The invention relates to a power source load system, in particular to a test load test device for a medium-frequency power source and a power-frequency power source. The test load test device comprises the power-frequency power source, the medium-frequency power source and a load box and is characterized in that a total contact, a medium-frequency power input contact, a power-frequency power input contact, load distribution contacts and connecting copper bars are arranged; the output end of the medium-frequency power source is connected with the medium-frequency power input contact through the corresponding connecting copper bar, the output end of the power-frequency power source is connected with the power-frequency power input contact through the corresponding connecting copper bar, the medium-frequency power input contact and the power-frequency power input contact are respectively connected with the input end of the total contact through the corresponding connecting copper bars, one circuit of the output end of the total contact is connected to the load box through the corresponding load distribution contact by the corresponding connecting copper bar, and the other circuit of the output end of the total contact is connected to the load box through the corresponding load distribution contact. The test load test device has the advantages of being reasonable in structure, simple in operation and convenient to maintain and repair, and reducing cost.

Description

technical field [0001] The invention relates to the technical field of testing systems, in particular to a loading test device for testing intermediate frequency power supplies and industrial frequency power supplies. Background technique [0002] At present, the test loading test method for high-power intermediate frequency 400Hz power supply and industrial frequency 50Hz power supply is usually to pass the output intermediate frequency power 400Hz (115 / 200VAc) or industrial frequency power 50Hz (220 / 380VAc) through a high-power load box. The resistance of the load box produces heat consumption, and this test method usually uses two independent loading systems to test the intermediate frequency 400Hz power supply and the power frequency 50Hz power supply respectively, and the intermediate frequency 400Hz power supply and the power frequency 50Hz power supply use two independent loading tests During the use of the system, on the one hand, it avoids the interlacing of the pow...

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Problems solved by technology

[0002] At present, the test loading test method for high-power intermediate frequency 400Hz power supply and industrial frequency 50Hz power supply is usually to pass the output intermediate frequency power 400Hz (115 / 200VAc) or industrial frequency power 50Hz (220 / 380VAc) through a high-power load box. The resistance of the load box produces heat consumption, and this test method usually uses two independent loading systems to test the intermediate frequency 400Hz power supply and the power frequency 50Hz power supply respectively, and the intermediate frequency 400Hz power supply and the power frequency 50Hz power supply use two independent loading tests During the use of the system, on the one hand, it avoids the interlacing of the power frequency power and the intermediate frequency power, and on the other hand, it is to reduce the mutual interference between the two power sources through the cables, but its substantive deficiency is: during use Since the intermediate frequency and power frequency use independent loading test test systems, it is not only inconvenient to operate, but also increases the complexity of the test system and equipment costs, resulting in great limitations in the use process, which cannot meet the requirements of the loading test system. Simple, easy maintenance requirements

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