A mass of power electronics equipments with nonlinear characteristic are the main source of harmonics in low-voltage power system.
低压电力系统中大量具有非线性特性的电力电子设备是产生谐波的主要原因。
The hotel, which can be set up in any place, provides a private bathroom, wooden flooring, a heating system and low voltage power supply.
酒店中包括私人浴室、木质地板、供热系统以及低压电源。
In this paper, the authors have proposed the principle and realization of the low-voltage part of the power system applied in a diagnosing device for low-voltage power cable.
本文介绍了作者研制的一种低压电力电缆故障诊断装置电源系统(低压电源部分)的原理、实现方法。
In this paper, the effect of the neutral grounded by the low reactance on switching over-voltage in the power system is studied.
文章就中性点小电抗的接入对系统的操作过电压的影响进行了研究。
The low voltage and low power target is attained by improving the modulator structure and optimizing from system to circuit blocks.
为了实现低电压低功耗设计的要求,改进了调制器结构,并进行了从系统到电路模块的优化。
A remote automation meter data reading system for low voltage electric power user is introduced. It gives configuration block diagram, principle and system characteristic.
介绍一种低压电力用户远程自动抄表系统,给出了该系统的结构框图,简述了其工作原理与系统的功能特点。
The system requires two improvements: (1) the ability to counter the severe communication condition of low-voltage power line and (2) the ability to transmit music signal.
系统还需要在两个方面进行改进:(1)抵抗低压电力线恶劣通信状况的能力;(2)适合于音乐信号的传送。
It is more reasonable to have central compensation with low voltage for power system of civil architecture.
对于民用建筑供电系统,采用低压集中补偿方式是比较合理的。
Voltage protection for electronic and electrical equipment used in low voltage single phase power supply system.
主要用于低压单相电源系统电子电器设备的过电压保护。
Combining with some power distribution project of small and middle theatre, the main load, the composition of power distribution system and low voltage power distribution system were introduced.
结合某中小型剧场的配电工程项目,对配电中的主要负荷、配电系统的组成及低压配电系统进行了介绍。
The traditional power meter calibrating system usually has the shortcomings of low efficiency and large volume due to its standard voltage and current source rely on the analog amplifier.
传统的电力校表台由模拟功放向待校电表及标准表提供校表电流,造成系统效率低、体积大、重量重。
The article introduces the application of geographical information system(GIS)in low-voltage power distribution in order to improve the power supply service and the power enterprises benefit.
文章通过介绍地理信息系统(GIS)及其在低压配电中的应用,以提高供电服务质量和电力企业效益。
The characteristics of power line channel are the foundation of designing the low voltage power line carrier communication system.
低压电力线信道特性是设计低压电力线载波通信系统的基础。
The whole system has high integration, can meet the industry low voltage power distribution monitoring system's requirements in decentralization, network and intelligentization.
整个系统集成度高,能满足工业低压配电监控系统分散化、网络化、智能化的要求。
Power supply system: high-voltage power supply and distribution system to low-voltage distributors (including low-voltage distributors).
供电系统:高压供电及至低压配电柜供电的配电系统(包括低压配电柜)。
The low voltage ride-through (LVRT) capability of wind farms has a great impact on the power system stability.
风电场低电压穿越能力对电力系统的稳定性有着重要影响。
An intelligent control system of high current low voltage pulse power supply is introduced in this paper.
介绍了针对大电流、低电压的脉冲电源的智能控制系统。
The paper briefly introduces the design options, system configuration, equipment selection and engineering application of low-voltage short-line pilot protections in enterprise's power supply system.
简要介绍企业供电系统的低压短线路纵联保护设计方案、系统配置、设备选择及工程应用。
Firstly, this paper advanced a control system based on the low-voltage power line carrier.
首先,论文提出了一种基于低压电力线载波技术的总线式控制网络。
The article introduces the performance and application of the SKAI automobile power system with low-voltage MOSFET or high-voltage IGBT power component.
本文介绍了带有低压MOSFET或高压igbt功率器件的SKAI汽车动力系统的性能和应用。
For compensating reactive power and harmful currents in low voltage power system, the paper proposed two control schemes for STATCOM, which are indirect-current control and direct-current control.
本文针对低压配电网络的无功补偿和有害电流滤除问题,提出采用间接和直接电流控制两种STATCOM方案。
The composite insulator is light, and has low voltage of pollution flashover, so it's widely used in the power system in China.
复合绝缘子以其重量轻、防污闪性能好等优点在我国电力线路中已得到越来越广泛的应用。
A kind of design method of low voltage power quality monitor based on real time operation system (RTOS) is introduced in this paper.
介绍了一种基于实时操作系统(RTOS)的低压电能质量监测器的设计方法。
Channel estimation is researched for OFDM system in low-voltage power line communication in this paper.
本文主要研究基于OFDM的低压电力线通信信道估计算法。
Improper selection and protection of low voltage cables will have direct impact on safety and reliability of the power supply system.
低压电缆如选择与保护不当,直接影响供电系统的安全性、可靠性。
Three unbalanced phase loads varies randomly to lead to three phases unbalance in middle and low voltage distribution system, whi ch brings a series of problems on power grid.
在中低压配电网中,三相负荷随机变化,产生三相不平衡,从而给电网带来了一系列的问题。
This paper investigates the phenomenon of electrification of zero conductor in low voltage power supply system on the basis of actual circuit, and suggests sollutions for four possible causes.
从实际电路出发,对低压供电系统中零线带电现象进行了分析,得出零线带电的四种原因。
But the invasion of lightning surge may lead its failure due to its low voltage withstand level which may affect the normal service power system.
微机保护系统是电力系统的重要组成部分,但由于其耐压水平低,雷电波侵入电源系统时易导致设备的损坏,严重影响了电力系统的正常运行。
Three unbalanced phase loads varies randomly to lead to three phases unbalance in low voltage distribution system, which brings a series of problems on power grid.
在电网中,三相负荷随机变化,产生三相不平衡,从而给电网带来了一系列的问题。
In the light of static voltage security in electricity market environment, an approach to calculate the risk of low voltage in power system is proposed.
针对电力市场环境下的静态电压安全问题,建立了一种电力系统低电压风险评估方法。
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