电网中非线性负载引起的电力谐波会加剧配电变压器损耗,造成电能的巨大浪费。
Power harmonics caused by nonlinear load increased distribution transformer's additional loss which causing a huge waste of energy.
由于对节能的强调和电能费用的上涨,迫使用户必须考虑到由变压器损耗所引起的费用。
On account of power saving and electricity cost rising, the consumers have to consider the cost raised by transformer losses.
高频开关电源功率变压器线圈优化设计技术能有效减小变压器损耗以及尺寸,提高开关电源功率密度。
Optimal design for the windings of high frequency power transformer in SNIPS can reduce greatly the windings loss to improve SNIPS power density.
高频开关电源功率变压器线圈优化设计技术能有效减小变压器损耗以及尺寸,提高开关电源功率密度。
The loss model can be easily used in optimal design for the windings excited by switch-mode current, especially for the litz wire windings.
依据一个半桥逆变电路的实例详细介绍了高频变压器设计的一般方法和步骤,并讨论变压器损耗和温升问题。
The method of design high frequency transformer in half bridge inverter circuit is introduced exampled in detail, besides temperature rise and power loss are discussed.
由此导出变压器年运行费率、最低年运行费率、变压器最佳负载率以及变压器经济运行区宽和变压器损耗比的关系。
Then, relationships between the quantities mentioned above, the interval of economic operation and the loss factor of transformers are derived and discussed.
试验结果表明,该方法能在不增加变压器损耗、温升的条件下有效抑制变压器直流偏磁,试验数据证明了该方法的有效性和正确性。
The experimental results show that the scheme can not increase in transformer loss. The method in this design is proved to be effective and efficient one by the results of experiment.
在使输送相同电量的情况下,以达到减少变压器和电力线路的总损耗,提高电网经济效益的目的。
In the case of the transport of electricity under the same in order to reduce the power line transformer and the total loss, improve the power economic efficiency.
并结合实际测量数据,详细分析了单相空载损耗比对发现变压器线圈和铁心局部缺陷的准确性和有效性。
Each and every idle loss ratio has been checked against actual measurement for accuracy and effectiveness in identifying local defects in windings and cores of transformers.
合理的无功就地补偿和选择变压器容量可以降低损耗,提高系统运行的经济性,是电力需求侧管理的重要内容。
Rational planning of local reactive compensation and transformer capacity is very important for demand side management to reduce power losses and improve the economical power system operation.
实现变压器经济运行方式的前提是要有准确的设备参数和负载损耗曲线。
To possess accurate parameters of transformer and the power loss curve caused by loads is the presuppositions for economic operation of power transformer.
随着电力变压器单台容量的增加,漏磁场及其在油箱和结构件中引起的杂散损耗明显增加。
With the development of capacity of transformer, the leakage magnetic is increasing which may enlarge the stray loss in the tank and structure.
如何研究由于漏磁引起的附加损耗以及在金属构件中的温升是变压器设计的难题。
How to research stray losses and temperature rise on metal parts caused by leakage flux is difficult task for transformer design.
本文着重介绍如何改进变压器的结构以降低损耗、噪音、局放、渗漏水平及提高抗短路能力。
What how to improve the configuration of transformer in order to reduce loss, noise, partial discharge, leakage level and anti-short circuit capacity are introduced in this paper.
本文提出了一种改进的解析法,用来计算变压器油箱等结构件中由漏磁场引起的涡流损耗。
An improved analytical method which is able to calculate eddy losses of transformer tanks as well as structured objects is proposed.
变压器式可控电抗器与磁饱和式可控电抗器相比,谐波电流更小、响应速度更快、功率损耗更小。
Compared with the magnetic valve type controlled shunt reactor, the transformer type controlled shunt reactor is superior in its smaller harmonic current, faster respond speed and less power loss.
本文提出复标量磁位的有限元法计算变压器铁心中三维各向异性非线性磁场和损耗。
In this paper, a complex scalar magnetic potential finite element method is proposed to calculate the three dimensional anisotropic nonlinear magnetic field and iron loss in transformer cores.
计算结果提供优化前后的有功总损耗大小、电容器组状态和变压器分接头位置。
Computed results will provide the active power losses, shunt capacitor states and transformer tap values.
要求变压器铁芯具有低的高频损耗,高动态磁导率,高饱和磁感应强度和低的剩磁比。
So the transformer core material is required to be the one with properties of low losses at high frequency, high dynamic permeability, high saturation induction and low remanence.
本文分析了现有变压器的损耗比及各负载下的效率值。
The loss ratio and efficiency of power transformers are discussed.
本实用新型结构简单、成本低、空载损耗低、可靠性高,同时使变压器运输更方便。
The utility model has simple structure, low cost, low open circuit losses, and high dependability, and the utility model makes the transportation of the potential transformer more convenient.
介绍了一种实际测量换流变压器谐波损耗频率特性的方法,给出了在一台换流变压器上的实际测量结果。
The measuring method of the frequency characteristic of harmonic losses in convertor transformers is presented. The measuring results in a convertor transformer are given and are analyzed.
同时整流变压器的附加谐波损耗得到了有效降低,功率因数得到提高,改善了系统的电能质量。
Consequently, the additional harmonic loss of rectifier transformer is reduced, the power factor is enhanced and the power quality is improved.
介绍了在并列运行变压器经济运行模式下,变压器有功损耗的计算和使用寿命分析。
The active power loss calculation and service life analysis of parallel transformers under economic operation mode are introduced in detail.
本文工作旨在设计出损耗和谐波失真小的小型ADSL变压器,并对该变压器传输特性参数进行测试分析。
In this thesis, the aim is to design the ADSL transformer with low loss and harmonic distortion, and analyze the characteristic of transmission.
通过研究,系统解决了大容量干式励磁变压器参数优化、谐波含量及谐波损耗计算等技术难题。
Through this research, a series of difficult technical problems on parameter optimization and on calculation of the content and loss of harmonic waves, etc. have been solved.
通过对变压器绝缘油的试验分析,认为钙、镁离子进入变压器绝缘油是导致变压器绝缘油介质损耗偏高的主要原因。
It is believed that the calcium ion and magnesium ion went into transformer insulation oil is why the loss of them is higher through the test of transformer insulation oil.
本发明公开了电力、冶金行业变压器功率损耗计量方法。
The present invention discloses a transformer power consumption metering method in power industry and metallurgical industry.
介绍了风冷变压器技术性能,参数,结构及为提高变压器可靠性和降低损耗而采取的关键技术。
The technological performance, parameters and structure of air-cooling transformer are introduced with the key technology for improving the reliability and reducing dissipation.
可用于指导变压器并列运行方式的调整,达到减少电能损耗的目的。
These can be used to improve the arrangement of transformers parallel running for the purpose of reducing the energy loss.
应用推荐