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Smoothing reactor end-to-end capacitor discharge test system and transient wave trapper thereof

A technology of smoothing reactor and wave trap, which is applied in the field of smoothing reactor end-to-end capacitor discharge test system and its transient wave trap, which can solve the requirements of unreachable discharge time and short capacitor discharge duration, etc. problem, achieve the effect of improving voltage waveform, weakening voltage overshoot, and ensuring effectiveness

Inactive Publication Date: 2014-12-17
BEIJING POWER EQUIP GRP
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

If simply relying on the wave head damping resistance to eliminate high-frequency oscillation and overshoot, the capacitor discharge duration will be too short and cannot meet the requirements of the relevant technical standards for the test discharge time

Method used

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  • Smoothing reactor end-to-end capacitor discharge test system and transient wave trapper thereof
  • Smoothing reactor end-to-end capacitor discharge test system and transient wave trapper thereof
  • Smoothing reactor end-to-end capacitor discharge test system and transient wave trapper thereof

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] As we all know, in the end-to-end capacitor discharge test circuit of dry-type air-core smoothing reactor, stray capacitance, lead inductance, etc. will produce a strong high-frequency transient process on the rising edge of the wave front, forming a 1.8 times or even higher overshoot voltage. Usually, during the test process, the high-frequency overshoot is suppressed by increasing the damping resistance of the wave head, but the effect is not good. If the damping resistance value is increased blindly, the discharge duration will be seriously shortened, resulting in waveforms that do not meet the requirements of relevant standards for test duration.

[0016] In view of this, the present invention provides a smoothing reactor end-to-end capacitor discharge test system. Such as figure 1 as shown, figure 1 The illustrated embo...

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Abstract

The invention provides a smoothing reactor end-to-end capacitor discharge test system and a transient wave trapper thereof. The transient wave trapper comprises a first resistor, a second resistor, a third resistor, a first capacitor and a second capacitor, one end of the first resistor is connected to one end of the second resistor and one end of the third resistor, the other end of the second resistor is grounded, the other end of the third resistor is connected to one end of the first capacitor and one end of the second capacitor, and the other end of the first capacitor and the other end of the second capacitor are grounded.

Description

technical field [0001] The invention relates to the technical field of electric equipment protection, in particular to an end-to-end capacitor discharge test system for a smoothing reactor and a transient wave arrester thereof. Background technique [0002] The smoothing reactor is one of the three main equipments used in the converter station in the DC transmission system. It is used in the DC circuit after the rectification of the converter valve, which can improve the quality of power transmission and reduce the loss of lines and equipment. The dry-type air-core type smoothing reactor is relatively simple to implement with its unique main insulation and has high reliability; the product has no oil insulation system problems and avoids environmental impacts such as fire; no magnetic saturation phenomenon, stable inductance value and other advantages have obviously replaced Oil-immersed smoothing reactors occupy a huge market for UHV and EHV power transmission. [0003] In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12G01R1/36
Inventor 王楠张月华张猛吴玉坤张涛王国金胡宾
Owner BEIJING POWER EQUIP GRP
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