Multifunctional portable thyristor tester and test method thereof

Abstract

The invention discloses a multifunctional portable thyristor tester and a test method thereof. The tester comprises an insulation shell and a detection line; the detection line is characterized in that an indication lamp a, a direct current power supply, a single-pole double-throw switch and a 51omega resistor are serially connected in sequence, wherein the direct current power supply and the indication lamp a are connected with an alternating current power supply serial circuit in parallel; the test method comprises the step that the completeness detection and di / dt parameter detection on a thrysistor to be tested are performed by arranging and connecting a detection pen. The multifunctional portable thyristor tester is simple in wiring, convenient to operate, intuitive in judging, small in whole machine volume, convenient to carry, can realize the periodic test on the thryistor, low in equipment cost, huge in market potential and worthy of 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 convenient thyristor tester and a testing method thereof. Background technique [0002] Thyristors are widely used in rectification equipment in the electric power industry due to their advantages of high withstand voltage, large capacity, and small size. As thyristors are used in various high-power induction heating power supplies, inverters, AC switches, motor control, pulse power and other fields The application of thyristor is gradually expanding, and more and more users have put forward higher requirements on the reliability of thyristor devices. Therefore, it is necessary to be able to quickly and easily detect the reliability of thyristors. The main content of the measurement is whether the thyristor is intact and its performance parameters di / dt. [0003] Traditional methods for testing the integrity of thyristors ge...

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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