局部放电选频平衡法中选频放大器性能对测量的影响

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局部放电选频平衡法中选频放大器性能对测量的影响

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- 局部放电选频平衡法中选频放大器性能对测量的影响
- High VoltageApparatus Issue 4, Pages: 28-32(1998)
- 作者机构：
  
  1. 西安交通大学
  2. 西安交通大学 710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM855
- Published：1998
- 稿件说明：
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[1]刘刚,屠德民.局部放电选频平衡法中选频放大器性能对测量的影响[J].高压电器,1998(04):28-32.

局部放电选频平衡法中选频放大器性能对测量的影响[J]. High voltageapparatus, 1998, (4): 28-32.
[1]刘刚,屠德民.局部放电选频平衡法中选频放大器性能对测量的影响[J].高压电器,1998(04):28-32. DOI：

局部放电选频平衡法中选频放大器性能对测量的影响[J]. High voltageapparatus, 1998, (4): 28-32. DOI：

摘要

讨论了选频放大器的通频带宽度对测量灵敏度和干扰抑制比的影响

以及试样与参考电容器的电容量之比对干扰抑制性能的影响。最后给出了在实际电路上的测量结果。

Abstract

The input circuits of selective frequency balance method is inductance and capacitance. There is zero point at certain frequency point of the trasmis-sion function of interference signal. So the selective frequency amplifer must be used in the partial discharge （PD） measurement. In this paper

the effects of the band width of selective frequency and amplifier on interference rejection ratio and measurement sensitivity are discussed ;and also the effects of the capacity ratio of sample capacitor and reference capacitor. At last

the measurement results are given in real HV cicuit.

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