在气体慢积累模式中,可能由于轻微过在,绝缘油分解产生的气体在继电器的顶部聚集,迫使油位下降。
On a slow accumulation of gas, due perhaps to slight overload, gas produced by decomposition of insulating oil accumulates in the top of the relay and forces the oil level down.
长期以来,根据预防性试验和油中溶解气体的气相色谱分析结果判断变压器的绝缘状况,对防止事故的发生起到了很大作用。
The judgment of transformer insulation condition, which is based on preventive test and DGA, has played an important role of accident prevention for a long time.
我们公司涉及所有施工活动,包括:打桩、土建工程、机械安装、配管、电气、仪表、油泼裢保温绝缘工作。
Our company cover all construction activities that is: piling civil engineering mechanical erection piping electrical instrumentation painting and insulation work.
该方法能够有效地预测未来时刻变压器油中溶解气体的浓度、诊断变压器在未来时刻的绝缘状况。
It can availably predict the concentrations of the dissolved gases in transformer oil and diagnose insulation condition of transformer in future.
在线监测变压器油中溶解气体可有效地分析变压器绝缘状况,在线监测用气体传感器是实施该技术的关键。
Online detection technology of transformer oil dissolved gas can be used to analyze insulation status of transformer effectively, and the gas sensor in online detection is crucial to this technology.
本文介绍了运行电器设备绝缘油带电处理的设备和工艺。
In this paper the equipments and technology for treatment of insulating oil in operating equipments are introduced.
对GB/T 17623-1998气相色谱法测定绝缘油中溶解气体组分含量的测量不确定度进行了评定。
The uncertainty of measuring dissolved gas component content in insulating oil by using gas chromatograph method which was stipulated in GB/T 17623-1998 has been assessed.
油中溶解气体分析是判别变压器内部绝缘状况及发现内部故障的重要手段。
Dissolved gas analysis (DGA) is an important method to judge the insulation condition and find out fault inside transformer.
基于变压器油中溶解气体分析,提出了一种基于群灰色关联度分析的变压器绝缘故障诊断新方法。
Utilising dissolved gases analysis, a new insulation fault diagnosis method for power transformers is proposed.
变压器油是变压器内部重要的液体绝缘介质,起绝缘、冷却和消弧的作用。
The transformer oil is an important liquid dielectric material in the transformer; it plays the roles of insulation, cooling and extinction of arc.
随着油的流速增大,发生局部放电的起始电压得到提高,流速的增大有利于提高油的绝缘强度。
Initiation voltage was enhanced with the increase of velocity. The increase of velocity was good to the strength of oil insulation.
随着油的温度升高,发生局部放电的起始电压得到提高,温度的升高有利于提高油的绝缘强度。
Initiation voltage was enhanced with the increase of temperature. The increase of temperature was good to the strength of oil insulation.
油浸式电力变压器是电力系统的重要设备,对其绝缘状况的检测评估相当重要。
Oil-immersed power transformers are key equipments in power system, and it is important for detection and assessment of their insulation condition.
文章讨论了这些设计方式对绝缘系统包括固体绝缘和绝缘液体的影响,并且对绕组和油道进行了热分析。
This paper discusses the influence of the design mode on insulation system including solid insulation and insulation liquid, and carries out the heat analysis of winding and oil duct.
油中溶解气体分析是评估变压器绝缘状态和分析变压器绝缘故障的重要依据。
The DGA (Dissolved Gas Analysis) is essential for the insulation state assessment and the fault diagnosis of transformers.
通过对变压器绝缘油的试验分析,认为钙、镁离子进入变压器绝缘油是导致变压器绝缘油介质损耗偏高的主要原因。
It is believed that the calcium ion and magnesium ion went into transformer insulation oil is why the loss of them is higher through the test of transformer insulation oil.
绝缘油击穿电压测试仪就是电力系统中测试绝缘油耐压强度的测试仪器。
Insulating Oil Testers is a kind of effective tool for testing the dielectric oil breakdown voltage in power field.
检测变压器油中糠醛含量是判断变压器绝缘纸老化程度的有效方法。
Detection of furfurol content in transformer oil is an effective method to judge the aging degree of insulated paper in the transformer.
以绝缘油裂解的特征气体为例,对气泡-液体两相油流的裂解程度进行了定量分析。
Taking characteristic gas of insulation oil cleavage for example, the extent of bubble-liquid two-phase oil flow cleavage was quantitatively analyzed.
介绍了影响固体绝缘材料在变压器油中沿面放电特性的主要因素。
In this paper, main influential factors on dielectric surface discharge in transformer oil are discussed.
充油设备绝缘油的质量与其能否正常运行有着很大关系。
The oil-filled equipment insulating oil quality has the very big relations with the normal operation.
基于变压器油中溶解气体分析,提出了一种基于群灰色关联度分析的变压器绝缘故障诊断新方法。
It was then applied to the insulation fault diagnosis of power transformer based on dissolved gas analysis.
植物绝缘油已成功应用于配电变压器中,但尚未在更高等级电力变压器中得到应用。
Vegetable insulating oils have been successfully applied in distribution transformers, but not applied in power transformers with higher voltage levels.
潜油电机定子绝缘漆的烘干是潜油电机生产的一道重要工序。
The dry of stator insulating lacquer is a crisis step of submersible motor production.
直流电压试验作为一种对油浸纸绝缘电缆非常有效的方法应用至今,但它对塑料绝缘电缆是无效而且有害的。
The DC test, which is an effective means for the diagnostics of oil impregnated paper insulated cable, is still used even now, but it is ineffective and harmful for the plastic insulated cable.
建立了基于半哥西分布函数的绝缘油试验评估指标状态函数和考虑指标初始值差异的电气试验评估指标状态函数。
The state function of insulating oil test based on the half Cauchy distribution function and the state function of electrical test considering the initial value differences were constructed.
从绝缘油的击穿机理出发,分析了影响绝缘油击穿电压测定值准确度的主要因素,以及判断击穿电压测定值精密性和准确性的原则。
Based on the breakdown mechanism of insulating oil, main influential factors and judging principles on the accuracy of the test results are analyzed as well.
这一方法可以预测将来任一时刻的油中气体浓度,从而诊断变压器的绝缘状况。
Using this method, the gas in oil concentrations at any future time can be predicted, hence the insulation of oil filled transformer can be also diagnosed.
笔者以充油电缆绝缘结构为研究对象,采用红外光谱分析技术对不同热老化阶段的电缆油油样进行了理化分析。
In this paper, the high voltage oil-filled cable insulating structure is investigated, and the infrared spectral analysis is used to analyze the cable oil samples in different thermal aging stages.
笔者以充油电缆绝缘结构为研究对象,采用红外光谱分析技术对不同热老化阶段的电缆油油样进行了理化分析。
In this paper, the high voltage oil-filled cable insulating structure is investigated, and the infrared spectral analysis is used to analyze the cable oil samples in different thermal aging stages.
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