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首页> 外文期刊>Electricity Today >ADVANCED CONDITION-BASED ASSESSMENT OF MEDIUM AND HIGH VOLTAGE ELECTRICAL SYSTEMS WITHOUT REQUIRING AN OUTAGE
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ADVANCED CONDITION-BASED ASSESSMENT OF MEDIUM AND HIGH VOLTAGE ELECTRICAL SYSTEMS WITHOUT REQUIRING AN OUTAGE

机译：在不中断的情况下基于高级条件的中高压电气系统评估

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Partial discharge (PD) is becoming increasingly viewed as the best diagnostic for insulation, particularly for on-line measurements. Clearly this applies to insulation, which exhibits and is degraded by PD activity. However, even for insulation, which is designed to be PD free, the knowledge that the system is actually PD free is still a vital part of the diagnostic process. Hence PD measurements, which are accurate and reliable, always contain important information about the high voltage (HV) equipment to which they apply. With the development of on-line PD methods, several problems still exist to be solved to yield the optimum diagnostic for insulation. These are: 1. Noise interference from RF radio broadcasts 2. Noise interference from pulses other than PD pulses 3. Location of PD pulses on cables and static equipment (e.g. switchgear, transformers etc) 4. Estimation of remaining service life for the PD activity measured in the HV equipment under test The remaining service life of equipment exhibiting PD activity is briefly dealt with for restricted types of equipment, otherwise this is left for a future paper. This paper addresses the main issue of making reliable PD measurements, namely the identification and removal of noise sources, and the location of PD events. To be able to do this allows the identification of discharging equipment, and hence the assessment of the risk to reliable service performance.
机译：局部放电（PD）越来越被视为绝缘的最佳诊断，尤其是对于在线测量。显然，这适用于绝缘材料，该绝缘材料表现出PD活性并由于PD活性而退化。但是，即使对于绝缘设计为无PD的绝缘，了解系统实际上无PD的知识仍然是诊断过程的重要组成部分。因此，PD测量准确而可靠，始终包含有关其适用的高压（HV）设备的重要信息。随着在线局部放电方法的发展，仍然需要解决几个问题以产生最佳的绝缘诊断。它们是：1. RF无线电广播的噪声干扰2. PD脉冲以外的脉冲的噪声干扰3. PD脉冲在电缆和静态设备（例如，开关设备，变压器等）上的位置4.估计PD活动的剩余使用寿命在受测试的HV设备中进行测量在受限类型的设备中，将短暂处理表现出PD活动的设备的剩余使用寿命，否则将留作以后的研究。本文讨论进行可靠的PD测量的主要问题，即识别和消除噪声源以及PD事件的位置。为此，可以识别出放电设备，从而评估对可靠服务性能的风险。

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