A capillary two-way trigger device for series gap and its application

A technology for triggering devices and series gaps, which is applied in the direction of measuring devices, circuit breaker testing, instruments, etc., can solve the problems of increasing the technical difficulty of gas gap breakdown triggering, meet the needs of precise timing control, simple structure, and improve test performance. The effect of work efficiency

Active Publication Date: 2021-07-13
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, for applications with high voltage levels or simultaneous use of AC and DC power supplies, in order to ensure reliability, gas gaps often use double gaps in series, which further increases the technical difficulty of triggering gas gap breakdown

Method used

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  • A capillary two-way trigger device for series gap and its application
  • A capillary two-way trigger device for series gap and its application
  • A capillary two-way trigger device for series gap and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] see figure 1 , the present embodiment is a capillary two-way trigger device for a series gap, including a pulse source, a single-gap capillary, and a voltage equalizing capacitor.

[0056] Pulse sources include pulse capacitors, DC power supplies, thyristors, freewheeling diodes, pulse transformers, protection inductors, protection resistors and protection diodes.

[0057] Wherein, the capacitance value of the pulse capacitor is 1 μF.

[0058] The DC power supply is connected in parallel to both ends of the pulse capacitor through a protection inductor and a protection resistor, and its output terminals are respectively connected in series and in parallel with protection diodes to form a pulse charging circuit together.

[0059] The pulse capacitor is connected in series with the parallel circuit of the thyristor and the freewheeling diode, and the primary side of the pulse transformer to form a pulse discharge circuit.

[0060] After receiving the pulse ignition sign...

Embodiment 2

[0067] see figure 1 , the present embodiment is a capillary two-way trigger device for a series gap, including a pulse source, a single-gap capillary, and a voltage equalizing capacitor.

[0068] Pulse sources include pulse capacitors, DC power supplies, thyristors, freewheeling diodes, pulse transformers, protection inductors, protection resistors and protection diodes.

[0069] Wherein, the capacitance value of the pulse capacitor is 2 μF.

[0070] The DC power supply is connected in parallel to both ends of the pulse capacitor through a protection inductor and a protection resistor, and its output terminals are respectively connected in series and in parallel with protection diodes to form a pulse charging circuit together.

[0071] The pulse capacitor is connected in series with the parallel circuit of the thyristor and the freewheeling diode, and the primary side of the pulse transformer to form a pulse discharge circuit. After receiving the pulse ignition signal, the thy...

Embodiment 3

[0078] see figure 1 , the present embodiment is a capillary two-way trigger device for a series gap, including a pulse source, a single-gap capillary, and a voltage equalizing capacitor.

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PUM

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Abstract

The invention discloses a capillary dual-channel trigger device for series gaps and its application. The single-gap capillaries are respectively embedded in the corresponding gaps, and are respectively connected to the secondary sides of the pulse transformer through corresponding voltage equalizing capacitors. The pulse transformer The primary side is connected to the DC power supply through the pulse discharge circuit, and the output terminal of the DC power supply is connected in series with the pulse charging circuit. The invention adopts double-channel single-gap capillary discharge, has advanced technology, simple structure, excellent control performance, and can effectively, quickly, accurately and reliably conduct series gaps.

Description

technical field [0001] The invention belongs to the technical field of pulse power, and in particular relates to a capillary two-way trigger device for series gaps and its application. Background technique [0002] With the continuous improvement of high-voltage switch manufacturing level, direct test has been difficult to meet the test requirements of high-voltage large-capacity circuit breakers. At present, more economical and effective synthetic test methods are used at home and abroad to test high-voltage large-capacity circuit breakers in the form of joint operation of low-voltage current source and high-voltage voltage source. Among them, the current source voltage is only a fraction of the rated voltage of the circuit breaker, and special arc extension measures need to be taken to prevent the test product from prematurely extinguishing the arc compared with the direct test condition, so that the circuit breaker has Same arcing time range as at rated voltage. [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/327
CPCG01R31/3274
Inventor 杨兰均魏鹏曹博韩佳一路志建
Owner XI AN JIAOTONG UNIV
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