Low-voltage and high-current rotating test rig

Abstract

The invention provides a low-voltage and high-current rotating test rig which is characterized by comprising an anechoic chamber; a rotary table is arranged in the anechoic chamber, an insulation test table is arranged on the rotary table, and an object to be tested is arranged on the insulation test table; a rotary table central hole is formed in the center of the rotary table, a copper bar is arranged in the rotary table central hole, one end of the copper bar is connected with a power supply end of a power supply device, and the other end of the copper bar is connected with the object to be tested through a soft connecting line; the power supply device is arranged in a screened room. According to the low-voltage and high-current rotating test rig, the low-voltage and high-current power supply device is placed below the rotary table and is connected with the object to be tested in a manner that the copper bar can be controlled to ascend or descend at an air shaft area of the rotary table, and the rotary table can rotate by 180 degrees in the forward direction and reverse direction to fully meet the substantial requirements for a maximum radiation harassment surface of the object to be tested for radiation emission test assessment. Meanwhile, the overall manufacturing cost of the customized central air shaft rotary table and the copper bar is far lower than the manufacturing cost of a double-layer rotary table, so the low-voltage and high-current rotating test rig has a great advantage on the manufacturing cost, and the power supply device is quite convenient to maintain.

Description

technical field [0001] The invention relates to a low-voltage high-current rotating test device, which is used for radiation emission testing of low-voltage circuit breakers. Background technique [0002] The latest standards for the radiation emission test of universal circuit breakers are the national standard GB14048.2-2008 "Low-voltage switchgear and control equipment Part 2: Circuit breakers" and the international standard IEC60947-2:2006+A1:2009 "Low-voltageswitchgearandcontrolgear- Clause F.5.4 of Part2: Circuit-breakers. Standard requirements, when radiating radio frequency disturbance (30MHz ~ 1GHz), should be based on figure 1 Set up the test. [0003] Most testing agencies do not fully meet the standard requirements when conducting radiation emission tests on universal circuit breakers. Since the test product should be placed on the turntable, and the low-voltage and high-current power supply is obtained from the power supply device through the thick and flexib...

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