Multi-channel testing apparatus for direct-current breakdown voltage of switching type surge protection device
A technology of DC breakdown voltage and surge protector, applied in the direction of testing dielectric strength, etc., can solve problems such as low efficiency, slow test process, damage, etc., and achieve the effect of high safety and high detection efficiency
Active Publication Date: 2015-10-28
辽宁中航信诺科技有限公司
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Problems solved by technology
The DC breakdown voltage of a switch-type surge protector refers to the DC voltage value when a slow rise is applied between the poles and the gap finally breaks down. The test process is cumbersome. The traditional test method is to add a discharge tube to On the fixture, then turn the voltage regulator and observe the readings of the ammeter, the test process is slow and inaccurate, the efficiency is low and it is easy to cause injury accidents, it is not suitable for the current cumbersome circuits
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[0022] The following will further describe the embodiments of the present invention in detail with reference to the examples and drawings.
[0023] In this embodiment, the device measures 64 surge protectors at a time, which are arranged in an 8×8 matrix array on the fixture, and the intelligent voltage source is controlled by the acquisition control system (PC host) and the drive module to give 64 surges. The protector is tested gradually at the same time. Each surge protector has a test protection circuit and a corresponding breakdown feedback circuit. The on and off of the two are controlled by the same relay Pi (i=1~64), which is switched through the relay Pi. When the test protection circuit is connected , The breakdown feedback circuit is in an interrupted state. After the test protection circuit is interrupted, the breakdown feedback circuit is turned on immediately. Therefore, during the test, as the voltage of the intelligent voltage source rises, as long as the surge p...
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Disclosed in the invention is a multi-channel testing apparatus for a direct-current breakdown voltage of a switching type surge protection device. The testing apparatus comprises a collection control system, a driver module, an intelligent voltage source, a test protection circuit module and a breakdown feedback circuit module. Multiple surge protection devices can be protected simultaneously one time; the surge protection devices are arranged on a clamp in a matrix; and a computer controls the intelligent voltage source to carry out pressurization and testing on the multiple surge protection devices simultaneously. According to the testing apparatus, a test protection loop is designed for each surge protection device; and as long as one surge protection device is broken down, the protection loop will be disconnected to prevent the impact on the test power supply and protect other test loops from being affected. According to the invention, after one surge protection device is broken down, the test protection loop is disconnected immediately and the breakdown feedback circuit module is started simultaneously; and the collection control system is used for obtaining the breakdown voltage of the surge protection device.
Description
technical field [0001] The invention relates to the field of lightning protection, in particular to a DC breakdown voltage testing device for a multi-channel switch-type surge protector. Background technique [0002] Switch-type surge protectors are mainly used for lightning protection in power supply systems and signal systems. Breakdown voltage, the gas inside the surge protector will be ionized immediately and spark discharge will occur. At this time, the surge protector is turned on and is in a short circuit state. ground, so as to protect the follow-up equipment and personal safety. Therefore, breakdown voltage is a very important parameter. The DC breakdown voltage of a switch-type surge protector refers to the DC voltage value when a slow rise is applied between the poles and the gap finally breaks down. The test process is cumbersome. The traditional test method is to add a discharge tube to On the fixture, then turn the voltage regulator and observe the reading...
Claims
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IPC IPC(8): G01R31/12
Inventor 张云峰周中山陈则煌曹洪亮
Owner 辽宁中航信诺科技有限公司