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Large current over-voltage and under-voltage surge testing device

A technology of surge test and high current, which is applied in the direction of power supply test and dielectric strength test, which can solve the problems affecting the safety of the aircraft and the inability to carry out the withstand voltage surge test of high-current aircraft equipment, so as to achieve no clutter interference, The simple effect of the circuit

Inactive Publication Date: 2016-12-07
SHAANXI AIRCRAFT CORPORATION
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Problems solved by technology

With only the existing small current test equipment, it is impossible to carry out the withstand voltage surge test of the large current carrying equipment, which leads to some equipment being installed directly without the project test, which causes the aircraft to be unable to withstand the undervoltage surge due to some carrying equipment Major issues affecting aircraft safety due to shocks

Method used

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  • Large current over-voltage and under-voltage surge testing device

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Embodiment Construction

[0011] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments: a large current overvoltage and undervoltage surge test device is provided, which includes: a high current aviation relay (1), a protection diode (3), a secondary Power supply (4), main power supply (5), fast transient burst generator (6);

[0012] The high-current aviation relay (1) is a single-pole double-throw relay, the normally open contact (8) is connected to the secondary power supply (4), the normally closed contact (7) is connected to the main power supply (5), and the common contact (11) is connected to The positive pole of the power supply of the equipment under test (2), the positive and negative control contacts are connected to the control terminal of the fast transient burst generator (6), and the positive and negative control contacts (9, 10) of the high-current aviation relay (1) are connected to each other. There is a ...

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Abstract

The invention discloses a large current over-voltage and under-voltage surge testing device which solves a problem that conventional domestic and overseas over-current and under-voltage surge test equipment is incapable of large current surge tests because of low rated current by using a fast large-current aviation relay, a wiring board and three diodes. Further, the large current over-voltage and under-voltage surge testing device may provide correct waveforms complying with a standard request and effectively eliminates peak interference signals generated during the contactor contact conversion. The device can also be applied to a power transient interruption test system.

Description

technical field [0001] The invention relates to the field of national military standard detection, in particular to a large current overvoltage and undervoltage surge test device and circuit. Background technique [0002] At present, the important basis for the safety assessment of the power supply of aircraft-borne equipment is the withstand voltage surge (overvoltage and undervoltage surge) test in GJB181-86 "Aircraft Power Supply Characteristics and Requirements for Electrical Equipment". Most of the machine equipment needs to be tested for this project. The maximum current passing through the fast transient burst generator UCS500 of the existing configuration test equipment is 16A, and with the continuous upgrading of airborne equipment, the required current is gradually increasing, especially for some special equipment. The current has reached more than 200A. At present, the development of test equipment for this project at home and abroad has not yet reached the high...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/40G01R31/12
CPCG01R31/40G01R31/12
Inventor 张秦洲杨智辉石彩云张青刘岩苏陆锋李昕
Owner SHAANXI AIRCRAFT CORPORATION
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