Because partial lines will pass though areas coated with ice, the line insulation design must be considered specially.
由于部分线路跨越覆冰区,因此在绝缘设计上必须予以特殊考虑。
Four, grounding power supply, the cabinet must be ground, check line insulation situation, and then after the test run.
接地电源,机壳必须接地线,检查线路绝缘情况后,方可试运转。
Selection of insulator type, number of insulator string and air space is the main basis of transmission line insulation coordination.
输电线路的绝缘配合主要是选择绝缘子型式、绝缘子串的片数和空气间隙。
It can be applied in on-line insulation status monitoring system for HV electric equipment with the veracity and reliability ensured.
该方法可用在高压电气设备绝缘在线监测系统中,保证在线监测的准确性和可靠性。
By the monitoring of the leakage current, the on-line 380v grid insulation conditions and the off-line insulation resistance can be monitoring in real-time.
现场绝缘监测单元能通过对漏电流的监测,实时的在线监测交流380v电网的绝缘情况和离线测量发电机组的绝缘电阻。
The DC superposition method was mainly utilized because it was ripe theory about On-line Insulation Monitoring on the XLPE power cable, in addition of the DC partial current method.
本系统电缆绝缘在线监测理论,以比较成熟的直流叠加法为主,加上直流分量法作为理论基础。
The on-line insulation monitoring of power apparatus is very important to guarantee the safety of power delivery, find insulation faults in time and increase the reliability of power supply.
电力设备绝缘检测是保证安全发、配电,及时发现事故隐患、提高供电可靠性的重要技术手段。
This paper presents a portable on - line insulation parameter tester. The measurement principle, configurations of hardware and software, main specifications and testing results are described.
本文对便携式绝缘参数在线测试仪的研制进行了说明,叙述了测试原理及电路的组成,对软件的设计也进行了简述并给出了测试仪的主要参数。
For those of high voltage level, after the estimate of their insulation parameters we draw the conclusion that those above methods cannot apply to on-line insulation monitoring of 110kv XLPE cable.
对于较高电压等级的电缆,本文通过对绝缘参数的估算得出结论:几种已有的针对较低电压等级电缆的在线监测方法,难以有效地用于110KV的XLPE电缆绝缘在线监测。
Plaster line itself is not waterproof, rain and sun will encounter weathering, low intensity, poor weather, can not be used in the outdoors, and the accuracy is poor, there is no insulation function.
石膏线条本身就不防水,遇到雨水和阳光就会风化,强度低,耐候性差,不能在室外运用,并且精确度差,没有保温功用。
For requirement of building's heat insulation is more and more exigent, it is stringent to measure heat preservation performance on line in course of bricks building's appraisal.
由于目前房屋建筑隔热保温性能的要求越来越高,砌筑好的建筑物在鉴定验收中迫切的要求进行保温性能的在线检测。
This method is applied to detect the insulation of feeder line cable in metro substations and has already obtained good result.
该法用于地铁牵引变电站直流馈线电缆绝缘性能检测中,取得了良好的效果。
Therefore, it has great significance to research DC icing test methods on disk-shaped suspension insulator for study of DC transmission line characteristics of external insulation.
因此,对盘形悬式绝缘子直流覆冰试验方法进行研究,对直流覆冰输电线路外绝缘特性的研究具有重大的意义。
In theory, the decrease of the vacuum magnetic insulation transmission line inductance can heighten the energy transmission efficiency, can increase the load current.
理论计算表明,改造真空磁绝缘传输线,减小其自身电感,会提高能量传输效率,能够增大负载电流。
When bearing operating voltage, switching overvoltage or atmospheric over-voltage in the process of operating, the transmission line are likely to occur insulation flashover accident.
输电线路在运行过程中承受工作电压、操作过电压或大气过电压时,都可能会发生绝缘闪络事故。
On-line partial discharge monitoring is one of the most effective methods for winding insulation diagnosis of large generator stator.
局部放电测量是诊断定子绕组绝缘最为有效的方法的之一。
The operating value of earth leakage protection can be changed with the mains voltage, but the operating value of cables insulation resistance is held the line.
该设计可以根据电网电压的波动调整动作值,从而保证电缆绝缘电阻的动作值不变;
It is important practically for insulation during vacuum drying to measure moisture levels accurately and to realize the control on line.
准确测定电工绝缘材料真空干燥过程中的含水量,并实现实时在线控制,在绝缘材料真空干燥工艺中具有重要的实践意义。
This equipment is easy to be fixed for its small volume. It doesn't change the primary line and has no impacts on the insulation of transmission line.
该装置体积小,安装简便,不对原一次线路进行改动,不对线路绝缘造成威胁,解决了配电网分支线路无功参数不易测量的难题。
These factors including distribution of circuit breakers closing Angle, rated voltage of MOA and the insulation level of transmission line are considered.
同时还研究了断路器合闸相位角分布规律、MOA的额定电压、线路绝缘水平等因素的影响。
This article introduces grounding and insulation conditions of screen door system along Line 1 in Shanghai Metro.
本文介绍了上海地铁1号线屏蔽门系统接地与绝缘情况,分析了地铁屏蔽门系统接地绝缘的原因。
There already have some outcomes in studies of on-line monitoring of the running condition and the insulation condition of the high voltage equipments in power system.
电力高压设备运行状态在线监测和绝缘状态在线监测的研究在电力系统中已经取得一定的研究成果。
Large power transformer partial discharge on-line monitoring technology is a hot topic in high voltage insulation detection and diagnosis domain.
大型电力变压器的局部放电在线监测技术是高电压绝缘检测与诊断领域研究的热门课题。
On-line PD monitoring of power transformer is Presently the research hotspot in the area of high voltage insulation measurement and diagnosis.
电力变压器局部放电在线监测是当前高电压绝缘检测与诊断领域研究的热点课题。
On-line PD monitoring of power transformer is presently the research hotspot in the area of high voltage insulation measurement and diagnosis.
变压器局部放电在线监测是高电压绝缘检测与诊断领域研究的热点课题。
Instructive analysis on power cable junction faults is carried out and an algorithm for indirect on line measuring of cable junction resistance and insulation aging is proposed.
对电缆接头故障进行了一些有益的分析,提出了一种间接在线评估接头电阻和绝缘老化的算法,从理论上验证了接头温度与接头质量的相关性。
The switching surge phenomena caused by line energization with out closing resistors but with MOA at both ends of the line, MOA's working conditions and insulation coordination are included.
包括线路断路器不装合闸电阻,只靠两端避雷器保护时过电压的特点,避雷器的工况及绝缘配合等。
Abstract: Instructive analysis on power cable junction faults is carried out and an algorithm for indirect on-line measuring of cable junction resistance and insulation aging is proposed.
摘要:对电缆接头故障进行了一些有益的分析,提出了一种间接在线评估接头电阻和绝缘老化的算法,从理论上验证了接头温度与接头质量的相关性。
Abstract: Instructive analysis on power cable junction faults is carried out and an algorithm for indirect on-line measuring of cable junction resistance and insulation aging is proposed.
摘要:对电缆接头故障进行了一些有益的分析,提出了一种间接在线评估接头电阻和绝缘老化的算法,从理论上验证了接头温度与接头质量的相关性。
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