Results 31 to 40 of about 14,930 (156)

Improvement and Engineering Application on Pulse Power Supply of Electrostatic Precipitator in Coal-Fired Power Plant [PDF]

open access: yes
ObjectivesHigh voltage power supply is the core equipment of electrostatic precipitator (ESP). Pulse power supply can achieve efficient removal of high specific resistance dust, but there are problems such as high pulse voltage causing heating and ...
HE Yuzhong   +3 more
core   +1 more source

浅谈建筑电气设计中接地和等电位联结 [PDF]

open access: yes, 2019
在现代建筑工程中,电气施工中的接地系统至关重要,其保障了整个电气系统的功能性和稳定性,关乎人的生命安全和经济财产安全。本文简要论述了接地和等电位联结的特点和关系,认为应认识到建筑电气设计中等电位联结的重要性,而不必要求人工接地极的接地电阻。
西亚 马
core   +1 more source

The Five‐Thread Model & Academic Policy Entrepreneurs: From the White Australia Policy to Multicultural Australia

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT Why did Australia go from the White Australia Policy, which excluded non‐whites, to institutionalizing multiculturalism policy in the 1970s? This question defies traditional political ideologies of the major political parties, which had long supported the White Australia Policy. This article is a rare empirical demonstration of the Five‐Thread
Julius C. S. Mok
wiley   +1 more source

Study and Realize the Protection Device Base on the FREESCALE 56800 Family Dsp [PDF]

open access: yes, 2010
电力系统自动化是自动化领域的一个主要分支,而微机型继电保护测控装置是电力系统中电气元件发生故障或不正常运行状态时,动作于断路器跳闸或发出信号的一种自动装置,是电力系统自动化的重要组成部分。现有微机保护装置大多基于传统的单片机,无法满足电力系统终端用户的高速度、高精度的特殊需求,随着电子技术发展,采用更先进的元件和更先进的方法来研究设计出能符合用户需求的产品,是行业的发展方向。本课题研究了国内外在继电保护方面先进的技术经验及最新的DSP技术的应用,提出了一种基于DSP内核的 ...
钟志斌
core  

Interface Issues of Inorganic Solid‐State Electrolytes in Secondary Magnesium Batteries

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Solid‐state magnesium batteries (SSMBs) have gained significant attention as promising candidates for next‐generation safe energy storage systems because of the abundance of magnesium (Mg) in the earth's crust, superior energy density, and inherent nonflammability.
Jiren Wang   +9 more
wiley   +1 more source

Study about Relationship Marketing of Company T [PDF]

open access: yes, 2002
输变电设备的市场形势,就其需求总量而论,今后五年仍将是一个平稳增长趋势。这两年输变电设备市场始终保持着与国民经济生产总值(GDP)相近的增长速度,即7%—8%的增长率,数据证明该行业是有增长,有效益的行业。这几年的市场局面是:外资进入、新兴的民营企业的崛起、原有老牌的国有企业,形成了三大板块的激烈竞争态势。因此,T公司必须分析自己的形势,扬长避短,方可在激烈的市场竞争中发展壮大。 本文通过查阅大量的资料,运用现代企业管理知识,并结合个人工作经验,对T公司的营销策略进行分析,提出适合T公司的营销理念 ...
林孔周
core  

Gravity‐Driven Inclination Sensor Based on Liquid Metal Interface Migration in Anisotropic Microchannels for Information Transmission and Continuous Surface Topography Scanning

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT With the continuous advancement of materials science and technology, the rare metal gallium has increasingly emerged as a promising alternative to the toxic metal mercury. Although existing research has predominantly focused on the high electrical conductivity and excellent deformability of liquid metal (LM), its intrinsic fluidic property ...
Feifan Guo   +6 more
wiley   +1 more source

基于ATP-EMTP的10kV配电系统不同中性点接地方式电气特性仿真分析

open access: yesDianci bileiqi, 2020
中性点接地方式的选择对10 k V配电系统的运行及故障处理具有重要作用。笔者据此详细阐述了10 kV配电系统中性点接地方式,并根据实际参数建立了10 k V配电系统中性点接地仿真模型,分析了不同方式下的电流电压特性,得出以下结论:小电阻接地的故障点电流远高于其他接地方式,且故障和非故障线路的零序电流差异较大,而小电流接地方式下的零序电流基本一致,对故障选线造成困难;小电阻接地方式下,工频过电压和弧光接地过电压约为不接地方式的82%、51%,可采用绝缘水平较低的电气设备,减少10 k V配电系统投资 ...
王国彬   +6 more
doaj  

基于ZNy11-Dyn7型无源降压消弧器件的高阻接地故障选线新方法

open access: yesDianci bileiqi, 2023
针对现有接地故障选线方法受系统参数不对称、互感器采样不同步影响,对于高阻接地故障馈线难以准确判别的问题,笔者提出了基于ZNy11-Dyn7无源降压消弧器件的高阻接地故障选线新方法。首先,提出了基于ZNy11-Dyn7型变压器的无源电压调控结构,分析了ZNy11-Dyn7型无源降压消弧器件接入系统后的运行特性。基于ZNy11-Dyn7型无源器件电压调控原理,在系统发生接地故障前后,分别通过无源器件投入调控系统电压,计算故障前后各馈线零序导纳值,消除系统参数不对称、互感器采样不同步影响 ...
陈虓   +5 more
doaj  

Research and Simulation of Resonant Grounded System Based on Controlled Magnetic Flux [PDF]

open access: yes, 2009
我国中压配电网,绝大多数采用中性点不接地方式。这种接地方式最大的优点是:当发生单相接地时,三相线电压的对称性没有被破坏,所以用户用电不受影响,可维持一定长的时间。但是,当配电网达到一定规模,对地电容电流达到一定数值后,必须采取加装消弧线圈的措施来保证配电网的安全。 配电网中性点采用消弧线圈接地的方式,对于改善电网供电质量、提高供电可靠性和保证整个系统安全运行都有十分重要的意义。本文在此背景下,对建立大范围连续调节电感电流、谐波较少的消弧线圈补偿模型 ...
桂亮
core  

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