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Instrument used for measuring withstand voltage and pulse frequency of pulse water switch and method thereof

A technology of withstand voltage and pulse frequency, applied in the field of electrical measurement, can solve problems such as literature reports that provide a basis for the measurement of withstand voltage performance and self-healing performance of unwatered switches, and achieve the effects of simple structure, high precision and accurate measurement

Inactive Publication Date: 2015-11-25
NORTHEAST DIANLI UNIVERSITY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

At present, there are no literature reports and practical applications that provide the basis for the measurement of the pressure resistance and self-healing performance of water switches in China.

Method used

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  • Instrument used for measuring withstand voltage and pulse frequency of pulse water switch and method thereof
  • Instrument used for measuring withstand voltage and pulse frequency of pulse water switch and method thereof

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Embodiment Construction

[0018] refer to figure 1 The measuring instrument of the withstand voltage and the pulse frequency of the pulsed water switch of the present invention comprises: a time delay trigger 11, a first controller 13, a first high-voltage pulse power supply 12, a first high-voltage diode 1, and a second controller 14 , the second high-voltage pulse power supply 15, the second high-voltage diode 10, damping resistance 2, capacitor 3, discharge reactor 4, discharge electrode 5, high-voltage probe 6, current measuring device 7 and oscilloscope 16, the time delay trigger 11 One output end of the first controller 13, the first high-voltage pulse power supply 12, and the first high-voltage diode 1 are sequentially electrically connected, and the other output end of the time delay trigger 11 is connected to the second controller 14, the second high-voltage diode 1 The pulse power supply 15 and the second high-voltage diode 10 are electrically connected in sequence, the anode of the first hig...

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Abstract

The invention discloses an instrument used for measuring withstand voltage and pulse frequency of pulse water switches and a method thereof. According to the instrument and the method thereof, performance of water switches in a pulse power system can be tested, and performance of liquid switches taking high insulation fluids as mediums can be tested. Withstand voltage of water between discharging electrodes in a successive discharging time interval is measured, two high voltage pulse power sources are employed, voltage is applied by one high voltage pulse power source to the electrodes of a discharging reactor so as to make the water generate a discharging plasma channel, vaporization occurs, as bubbles in the water contract, the bubbles disappears. In the process, a time time-delay trigger emits signals, and the pulse voltage is applied by the second high voltage pulse power source to the electrodes so as to make the discharging plasma channel to penetrate the electrodes another time. Insulation restoration ratios of the water switches and pulse frequency characteristics can be tested, stability of the test circuit is good, and the measurement precision is high.

Description

technical field [0001] The invention relates to the technical field of electric measurement, and relates to a measuring instrument and a method thereof for withstand voltage and pulse frequency of a pulse water switch. Background technique [0002] As the medium of the pulse switch, water has good pressure resistance and self-healing properties. Such as, high dielectric strength, steep pulse front, short recovery time, good stability, etc. An important factor affecting the electrical performance of the water switch is the pulse frequency, that is to say, the length of time it takes for the water to completely heal itself after discharge. In recent years, with the continuous development of pulse power technology in the direction of high power, high repetition rate and high stability, there is an urgent need for an effective test method for measuring the withstand voltage and pulse frequency of pulsed water switches. [0003] When a pulse voltage is applied, the water switch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327G01R31/12
Inventor 杨智博
Owner NORTHEAST DIANLI UNIVERSITY
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