Interrupt time test method and tester

Abstract

The invention is applicable to the field of interrupt test technology, and provides an interrupt time tester. The tester comprises a resistor voltage divider unit, an isolation rectifier unit, a maincontrol unit, an input unit, and a display unit. The resistor divider unit is used to divide voltage of voltage acquisition signal; the isolation rectifier unit is used to isolate and rectify the signal after the voltage division processing; the main control unit is used to perform A / D conversion processing on a rectified signal, and calculate effective amplitude thereof, then judge whether the signal is lost according to magnitude of amplitude; if the judgment is that the signal is lost, initial time of timing is determined, after the signal appears again, timing end time is determined, and interruption time measurement is over; the input unit is used to select and input corresponding measurement state; and the display unit is used to display a result. The present invention correspondingly provides an interrupt measurement method. Therefore, according to the interrupt time test method and tester, the interrupt test can be efficiently realized.

Description

technical field [0001] The invention relates to the technical field of interruption testing, in particular to an interruption time testing method and a tester. Background technique [0002] Relevant national and industry standards require that two-way power supplies should be used for primary loads, especially railway stations usually use independent two-way power supplies, one of which should be a dedicated line. When one of the power sources fails or is overhauled, it should be automatically switched to the other power source for power supply. The conversion time meets the requirements of relevant standards and is regularly measured. For power supply equipment, in order to improve the reliability of power supply, 1+1 or N+1 redundant power supply mode is usually adopted. For AC equipment, there must be a conversion time when redundant switching is used. This switching time needs to meet the requirements and be measured regularly. With the wide application of computer tech...

AI Technical Summary

Problems solved by technology

Although the measurement of the switching time of two power sources or the interruption time caused by the switching of redundant switching devices can be carried out by storing waveforms on a storage oscilloscope and then replaying them, it requires professionals to operate, and storage oscilloscopes are usually expensive, and in many application environments Under the environment (such as a railway station) is not equipped with a storage oscilloscope

[0003] In summary, there are obviously inconveniences and defects in the actual use of the existing technology, so it is necessary to improve

Images