Discussion on the impact of the high voltage reactor joining in and dropping out the service on the system voltage 投退高压电抗器对系统电压产生的影响
Electric power is carried near a building by the service lines of the electric supply company. Often the voltage in the supply lines is higher than the voltage used in the building. 电力由供电公司的输电线路送到建筑物附近。输电线路的电压时常高于建筑物内所用电压。
Main service in high voltage grid transmission, communications tower factory, is used for connecting plate processing Angle and the ideal processing equipment. 主要服务于高压电网输变电、通讯行业的铁塔制造厂,是用于角钢及联接板加工的理想加工设备。
Test method of glass-lined equipment for service under corrosive conditions by high voltage GB/T7993-1987用在腐蚀条件下的搪玻璃设备的高电压试验方法
According to the classification of instruments and equipment and respective descriptions, firstly ensure the service conditions, required horizontality and verticality, dryness, humidity and power voltage, pay attention to control vibration source and corrosive gas, and ensure clean installation environment, etc. 按照仪器设备的分类,依据各自的说明,首先确保使用条件及所要求的水平和垂直度,干燥湿度,动力电压,还要注意控制震源和腐蚀气体,以及保证安装环境清洁等。
Second, this paper analyzes the relation of reactive support service with voltage, power limit curve, transaction amounts. 另外,本文还从发电机角度上分析了无功服务与电压、功率限制曲线、发电机向负荷传输电能大小的关系;
Discussions on the Selection of 6 kV as Service Power Voltage Class of 600 MW Air Cooling Generating Unit 600MW空冷机组厂用电电压等级选用6kV的讨论
Describes such mechanic properties of toughened glass insulators as dielectric performance, tensile strength and heat resistance, and its service characteristics, such as self explosion, uniform voltage distribution for insulator clusters and no ageing, and suggests further wide applications in future designs. 介绍钢化玻璃绝缘子的介电性能、抗拉强度、耐温特性等机电性能,及其零值自破、绝缘子串电压分布均匀及不易老化等使用特性,建议在今后的设计中推广应用。
The method is easy to use, with which the service Period of the solution is long and the quality of treated wire is good. A Photoelectrochemical investigation has been carried out on 304 stainless steel alternating voltage ( A.V.) 此法简单易行,硼砂溶液使用期长,处理钢丝的质量高。采用光电化学方法研究了304不锈钢载波钝化膜在硼酸/硼砂溶液中的光电化学性质。
Now, this divider is already put in service at the Chinese National High Voltage Metrological Station as a standard measuring device. 该分压器现已作为标准测量设备在我国国家高电压计量站投入使用。
After analyzing the part and feature of the ancillary service, we discuss the component and making price method of that, the active/ frequency control, the reactive/ voltage control, the reserve capacity of generator and the restoration/ black start mode. 仔细分析了电力市场辅助服务的构成和特点,分别详细讨论了有功频率控制、无功及电压控制、发电备用容量、恢复及黑启动等辅助服务的构成方式、定价方案。
Statistical results had showed that the remainder service life of this VRLA group would only be 1/ 3 of the over all, as soon as the uniformity of floating voltage became worse and the floating current became larger and larger. 统计结果表明,一旦出现浮充电压的均匀性开始变差和浮充电流持续增大,则蓄电池组的使用寿命只剩下约1/3了。
A detailed introduction is made on some characteristics of the station service power of Baise Multipurpose Dam Project, including the connecting mode of station service power supply, selection and characteristics of voltage level, wiring schemes, selection and characteristics of main electrical equipment etc. 介绍百色水利枢纽厂用电设计的一些特点,对厂用电源的引接方式、电压等级的选择、接线方案、主要电气设备选择及其特点作了详细介绍。
Under new competitive market environment, ASM, the service of maintaining the stability of frequency and voltage to ensure stable and economical operation of the power grid from technical and economic views must be involved in the market oriented operation. 在新的电力市场竞争环境下,从技术与经济的角度,为保证电网经济可靠运行而提供的维护频率、电压稳定的服务,即电力辅助服务,在市场化运营中,必须计及。
It is favourable for prolonging the service life of VRLA groups for communication to control the floating voltage and the battery temperature strictly. 严格控制浮充电压和电池温度,是延长电池寿命的有效措施。
The service of 10 kV shunt capacitor bank is introduced in Langfang area and the causes of frequent action of unbalance voltage protection is analyzed. The setting principle for unbalance voltage of 10 kV shunt capacitor bank is put forward. 介绍了廊坊地区10kV并联电容器组运行情况,分析了不平衡电压保护频繁动作原因,提出了10kV并联电容器组不平衡电压保护的整定原则。
Since brought into service in the sixties, XLPE cable has become the main kind of cable in middle and high voltage transmission system for its outstanding performance. 交联聚乙烯电缆具有优异的性能,自从60年代投入使用以来已经成为中高压输电系统的主要品种。
Measuring resistive current of metal oxide arrester according to the service voltage is important to check whether MOA is damped and to indicate service status of MOA. 在运行电压下测量金属氧化物避雷器的阻性电流,对于反映MOA是否受潮以及其运行的状态具有重要意义。
It has been understood that the evolved gas is mostly influenced by fluctuation of constant charging voltage of the three-stage type charger, and the impact on battery service life during charging period can be reduced by a strict control over constant charging voltage. 认识到三段式充电器的恒压充电电压值高低对蓄电池析气量影响最大,通过控制恒压充电电压值,可以降低充电过程对蓄电池寿命的影响。
Measuring Resistive Current of MOA According to the Service Voltage 在运行电压下测量MOA阻性电流
Compared with the result of traditional nine-area control, this integrative control strategy can increase the service life of tap changer, without reducing the efficiency of voltage and reactive power control. 与传统的九区图控制相比较,这种综合控制策略能提高变压器分接头使用寿命而不降低电压无功的控制效果。
And the algorithm is adopted to solve the model and calculate the optimized number, location, capacity and service range of newly-built substation, capital cost of new substations and outgoing line on low voltage side, and line length as well. 应用HSA算法对模型进行了求解,确定出新建变电站的最佳数量、位置、容量以及供电范围,并计算出各新建变电站和低压侧出线的建设投资费用以及线路长度。
Electric power system ancillary service is an important measure to maintain the security and stability of power system, to confirm power supply, as well as meet the requirements of voltage and frequency quality. 电力系统辅助服务是维持电力系统安全稳定运行或恢复系统安全,以及为保证电能供应,满足电压、频率质量等要求的重要手段。
Determination of network structure determines the most essential things of the medium voltage distribution network. It has great significance to provide safe and high quality supply service. Therefore, the choice of network structure has been an urgent solution Problem of the medium voltage distribution network planning. 网络结构的确定,决定了中压配电网络最本质的东西,对其能否提供安全优质的供电服务具有重要的意义,使得网络结构的选择成为中压配电网规划过程中一个亟待解决的问题。
Both of them could extend the service life of battery system, but reduce the discharge voltage platform. 二者均在一定程度上延长了电池体系的使用寿命,但都降低了放电电压平台。
In this paper, aiming at power supply system service ability assessment of a large-scale power supply system and voltage sag is studied. 本文以供电系统为研究对象,进行了大规模供电系统和计及电压骤降的供电系统可靠性评估方法的研究。
In this paper, combining the development planning of smart grid currently, a new opinion is given that application and service should be the core concepts for smart grid in low voltage power distribution. 本文结合当前智能电网的发展规划,提出在低压配电系统中,以应用、服务为核心的智能网络概念。
High voltage test is an absolutely necessary tache before putting transmission line into service. With the rapid development of ultra high voltage grid in our country, it seems especially important weather the ultra high voltage field test can be accomplished successfully. 高压试验是输电线路投入运行前必不可少的一环,随着特高压电网在我国的飞速发展,特高压现场试验能否顺利完成显得至关重要。