Lightning arrester various waveform aging test device
A technology of aging test and arrester, which is used in measuring devices, instruments, components of electrical measuring instruments, etc., and can solve problems such as limited test ability, accelerated aging test, and complexity.
Active Publication Date: 2010-03-24
CHINA ELECTRIC POWER RES INST +1
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Problems solved by technology
However, for DC arresters, due to the complexity and diversity of their operating voltages, there is no unified national or international standard for accelerated aging tests.
At present, the arrester aging test equipment at home and abroad is specially designed for the aging test of AC arresters or DC arresters. The function is relatively single and the test ability is limited, which is not conducive to comprehensive test research.
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Embodiment Construction
[0010] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0011] Such as figure 1 As shown, the present invention includes: three ovens, various waveform generators, back-to-back simulation devices, and a measurement and control system. A variety of waveform generators and back-to-back analog devices introduce voltage signals into the oven through multiple high-voltage lead cables and apply them to the test object (arrester proportional unit). At the same time, the oven heats the sample to simulate the actual operating environment. Voltage divider R 2 and the sense resistor R 1 Mounted outside the oven, the voltage divider R 2 The two ends of the sample in the oven are connected in parallel through cables, and the sampling resistance R 1 In series with the test sample in the oven. The measurement and control system uses a computer as the main control device, and the acquisition card is controlled by th...
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The invention relates to a multi-waveform aging test device for an AC / DC lightning arrester, which comprises three ovens, a multi-waveform generator, a back-to-back simulator and a measurement and control system. The multi-waveform generator and the back-to-back simulator introduce a voltage signal into the ovens through a plurality of high voltage leads and apply the voltage on a sample; simultaneously the ovens heat up the sample; the measurement and control system respectively collects the voltage waveforms on a sampling resistance R1 and a voltage divider R2 through an acquisition card, and inputs the current in the sample and the born waveforms into a computer which works out the sample parameters like power consumption through mathematical analysis. Through the waveform acquisition system, the multi-waveform aging test device for the AC / DC lightning arrester inputs the current in the sample and a plurality of born waveforms into the computer which works out the sample data like power consumption through mathematical analysis, and carries out the integrated study on the accelerated aging test of the AC / DC lightning arrester.
Description
technical field [0001] The invention relates to a test device, in particular to a test device for multiple waveform aging tests of a lightning arrester. Background technique [0002] In practical application, the aging characteristic of arrester is its key performance, which is related to the safety and reliability of arrester operation. Therefore, it is necessary to conduct an accelerated aging test on the arrester to investigate its aging characteristics, and the equivalent method is used for the test and inspection. At present, a lot of work has been done on the aging test of AC arresters at home and abroad, which can be based on national standards and IEC standards. However, for DC arresters, due to the complexity and diversity of their operating voltages, there is no unified national or international standard for accelerated aging tests. At present, the arrester aging test equipment at home and abroad is specially designed for the aging test of AC arresters or DC arre...
Claims
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IPC IPC(8): G01R31/00G01R1/28
Inventor 陈立栋张翠霞林毅李武峰李同生葛栋车文俊
Owner CHINA ELECTRIC POWER RES INST