1) electric harmonic pollution
电力谐波污染
1.
This paper introduced a new kind of active electric filter, which can be used in the rural electric harmonic pollution control, starting from the view points of maintaining green agricultural electric environment and ensuring the safety of rural electric network operation.
从维护绿色农村电力环境、确保农用电网运行安全的角度出发,介绍了一种新颖的用于消除农用电力谐波污染的有源电力滤波器。
2) harmonic pollution
谐波污染
1.
Status and eliminating strategy for harmonic pollution in Lishui district;
丽水电网谐波污染的现状及治理对策
2.
Characteristics of harmonic pollution in medium and small hydraulic power stations and suppression methods;
中小型水电站谐波污染的特点及抑制措施
3.
According to the main fan transformation of Jinyuan Coal Mine,discusses main fan frequency-conversion,energy saving and advancement of online monitoring system,presents that capacitor filtering can eliminate harmonic pollution of temperature collection module constant current fountain chip causing by frequency-conversion.
以金源煤矿矿井主通风机改造为例,论述了主通风机变频节能与在线监测系统的跟进,提出电容滤波可以消除变频对温度采集模块恒流源芯片的谐波污染。
3) harmonic contamination
谐波污染
1.
Describes the cause for the harmonic contamination of electric power system and the damage of harmonic contamination to the equipment in the electric power system,and discusses in details the actions taken at home and abroad to prevent harmonic contamination and their effects.
介绍了电力系统谐波污染的产生原因及对系统设备造成的危害,在此基础上较详细地阐述了国内外各种治理谐波污染的措施及其效果。
4) interhamonic pollution
间谐波污染
5) electric pollution
电力污染
1.
Conclusions The electric pollution can descend of electrical energy quality, lead to higher failure rate of medical equipment.
结论:电力污染使电能质量下降,导致医疗设备故障率升高。
6) power harmonic
电力谐波
1.
The design of a AP electric power harmonic analysis device;
一种通用电力谐波分析装置的设计
2.
Wide attention in the whole world is attracted to the operation characteristics and possible problems of Three Gorges power system, such as power harmonic and system stability.
三峡电力系统作为中国最大，也是世界上大型电网之一，具有机组容量大，交、直流混合输电以及运行方式灵活等特点，其运行特性以及可能存在的电力谐波、系统稳定性等一系列问题是人们广泛关注的课题。
3.
Its operation characteristics and possible problems, such as power harmonic and system stability, are widely studied in the whole world.
其运行特性以及可能存在的电力谐波、系统稳定性等一系列问题是人们广泛关注的课题。
补充资料：电力牵引高次谐波
电力牵引高次谐波
harmonics of electric traction
d Ionl一qlony旧gooe}x{ebo电j]牵引高次谐波(harmonies of eleetrietraction)整流式交流电力机车在整流过程中将引起交流侧电流、电压波形畸变，按傅立叶级数分析该畸变波形可分解成频率为基波频率整数倍的一系列高次谐波分量的叠加。 高次谐波电流、电压可引起下列不良影响: (1)对通信线产生杂音干扰影响; (2)引起电力系统中其他电力电容器设备的过负荷; (3)当电气化铁路负荷某次谐波电流频率与电力系统自身谐振频率相近时，可产生电流谐振，使该次谐波电流在电力系统中放大，危及电力系统安全运行; (4)使旋转电机、变压器、电力电缆的出力减少并产生过热，影响电气设备寿命; (5)造成继电保护误动或仪表读数误差; (6)使半导体开关元件换相失灵。 为限制谙波的危害，各国都规定了允许谐波含量的标准(见供电质童)。 为降低电力牵引负荷产生的谐波，在电力牵引变电所和电力机车中可装设由电容、电感组成的谐波吸收装置。交流一直流一交流电力机车利用电力电子技术，可实现低谐波分量的负荷特性，使谐波含量降低。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条