A multifunctional portable thyristor tester and its testing method

Abstract

The invention discloses a multifunctional and portable thyristor tester and a testing method thereof, which include an insulating shell and a detection circuit. The detection circuit is to connect an indicator light a, a DC power supply, a single-pole double-throw switch and a 51Ω resistor in series in sequence, and the DC power supply and The indicator light a is connected in parallel with the AC power supply series circuit, and the test method is to detect the integrity detection and di / dt parameter detection of the thyristor to be tested by setting a connection detection pen. The device is small, easy to carry, can realize regular detection of thyristors, has low equipment cost, and has huge market potential, and is worthy of wide popularization and application.

Description

technical field [0001] The invention belongs to the technical field of thyristor performance detection, and in particular relates to a multifunctional and portable thyristor tester and a testing method thereof. Background technique [0002] Thyristors are widely used in rectification equipment in electric power and other industries due to their advantages such as high withstand voltage, large capacity, and small size. The application of the thyristor is gradually expanding, and more and more users have put forward higher requirements for the reliability of the thyristor device, so it is necessary to be able to quickly and simply detect the reliability of the thyristor. The main content of the measurement is whether the thyristor is intact and its performance parameter di / dt. [0003] The traditional method of testing the integrity of thyristors is to use a multimeter to test. During the test, a dry battery needs to be connected in series with the black pen of the multimete...

AI Technical Summary

Problems solved by technology

[0003] Thyristor intact performance testing, the traditional method generally uses a multimeter to test, and a dry battery needs to be connected in series with the black pen of the multimeter to increase the trigger voltage.

[0004] di / dt is an important parameter for the reliability of the thyristor. If the value is too high, the thyristor will be turned on and burnt. Although the thyristor will be given a di / dt parameter when it leaves the factory, the thyristor will be damaged after a period of use and cannot be guaranteed. Long-term reliability with timely adjustments

However, the existing test methods require professional equipment for measurement, or use complex and high-cost circuits, so a low-cost and easy-to-use test device is designed.

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