根据对变压器油纸绝缘内部常见缺陷的分析,进行了局部放电模型试验。
The model test of partial discharge is carried out based on the analysis of defect in oil paper insulation of transformer.
介绍了一种利用绝缘介质极化特性在现场检测油纸绝缘总体状态的新方法。
A new method is introduced in this paper for field detection of the general status of oil paper insulation system by using dielectric polarization spectrum analysis.
为满足油纸绝缘模拟结构的特殊电气性能试验的要求 ,研制了新颖的气动开关。
A new pneumatic switch was developed in order to meet the requirements of special electric test for simulated oil-impregnated paper insulation system.
引入统计学的多元分析方法对绝缘进行诊断,研究油纸绝缘材料老化程度的识别问题。
The multivariate statistical method is introduced in this paper to diagnose insulation performance and identify its aging stages.
研究结果表明,通过提高浸渍温度,植物绝缘油油纸绝缘的浸渍效果可以达到矿物绝缘油的标准。
The results show that rapeseed insulating oil-paper insulation impregnated can reach the standards of mineral insulating oil by increasing the impregnation temperature.
而且具有良好的电气性能,其介电常数大约是矿物绝缘油的1.5倍,有利于改善油纸绝缘结构中电场分布不均的问题。
The dielectric constant of insulating vegetable oil is about 1.5 times larger than that of mineral oil, which is helpful to improve an uneven distribution of electrical field in oil-paper insulation.
为探讨高压直流设备绝缘的最主要问题—空间电荷效应,应用电声脉冲法(PEA)对油纸绝缘材料的空间电荷特性进行了研究。
This paper studied the space charge characteristics of oil-paper insulation materials by the Pulsed Electro-Acoustic (PEA) method.
试验表明,在对X射线进行准直处理后,实现X射线激励下油间隙局部放电的定位是可能的,这一方法有望成为油纸绝缘系统局部放电定位的新手段。
Experiment shows that PD location in oil gap is possible through X- ray irradiation treated by collimation, which might be a new approach to PD location in oil - paper insulation.
油纸电容式穿墙套管主要用于发电厂、变电站中引导高压或超高压导线穿过建筑物的墙板,作为导电载流和高压对地墙板的绝缘及机械固定用。
Oilpaper capacity type wall bushing is used for insulation and fixed HV or EHV conductor that crosses the wallboard of building in power plant and substation mainly.
研究结果表明,人工神经网络对油纸变压器绝缘放电有足够的识别能力。
The investigation shows that ANN has enough ability to recognize different types of discharge of oil-paper insulation in transformers.
尽管早期对塑料电缆寄予希望,但对于较高电压,最有效的绝缘仍采用油纸组合绝缘。
In spite of earlier hopes for plastic insulations, the combination of paper and oil still forms the most effective dielectric at the higher voltages.
一次绕组采用油纸电容型绝缘结构。
The primary winding is with oil-paper capacity insulation structure.
但在同轴油纸复合绝缘中,当绝缘厚度超过一定值后,纸中极性反转场强反而增加。
However, in coaxial oil-paper combination insulation when the thickness of insulation exceeds a certain value the field strength within the pressboard under polarity reversal will increase instead.
但在同轴油纸复合绝缘中,当绝缘厚度超过一定值后,纸中极性反转场强反而增加。
However, in coaxial oil-paper combination insulation when the thickness of insulation exceeds a certain value the field strength within the pressboard under polarity reversal will increase instead.
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