An off-machine test circuit of an aircraft ground power distribution box

Abstract

The invention discloses an off-machine test circuit of an aircraft ground power distribution box, which is used for off-machine testing of the power distribution box. The off-machine test circuit includes a DC stabilized voltage power supply, an AC power supply, a second switch, a third switch, The fifth switch, the sixth switch, the seventh switch, the eighth switch, the ninth switch, the tenth switch, the oscilloscope, the first voltmeter and the second voltmeter, the second terminal of the first relay coil and the second terminal of the regulated power supply A first switch is connected between one ends. The off-board test circuit of the present invention can perform functional tests on the power distribution box on the ground of the aircraft in time before installation to ensure that it can normally provide monitoring and protection for the corresponding load lines after installation, and has the advantages of wide application range, easy integration of equipment, simple operation, and The advantages of repeated use can improve production efficiency and reduce production costs.

Description

【Technical field】 [0001] The invention relates to the technical field of electrical testing, in particular to an off-board testing circuit of an aircraft ground power distribution box. 【Background technique】 [0002] A large number of relays are generally used in aircraft to realize circuit switching and logic control. The relays in each airborne system are generally installed in the corresponding electrical boxes, and their normal operation plays an important role in ensuring the normal operation of the airborne systems of the aircraft and the flight safety of the aircraft. significance. For military aircraft, the efficiency of maintenance and support is also extremely important. The ability to quickly complete the functional inspection of equipment and quickly locate and eliminate faults is an important factor affecting the combat effectiveness of aircraft. [0003] Among them, the power-on detection of the aircraft ground power distribution box can reflect the use functi...

AI Technical Summary

Problems solved by technology

[0003] Among them, the power-on detection of the aircraft ground power distribution box can reflect the use function and protection function of the power distribution box, and can detect whether the internal circuit and various electronic components are working normally. The existing technology on the market is installation detection, and the space on the aircraft is small. , it is not easy to check the fault point; if there is a fault, it needs to be disassembled repeatedly for repair and maintenance, which consumes manpower and material resources, the detection cycle is long, the production efficiency is low, and the operation is inconvenient

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