Single-phase transformer

From the perspective of the single-phase transformer , this paper analyzes that the transient saturation of transformer core is the fundamental cause of magnetizing inrush , and then the generation and characteristics of the three-phase transformer s magnetizing inrush are expounded .

从单相变压器入手，分析了变压器铁芯的暂态饱和是引起励磁涌流的根本原因，继而对三相变压器励磁涌流的产生和特点进行了阐述。

The paper elaborated the basic principle and features of HV single-phase distribution technology , and the outstanding performances of new single-phase transformer and the necessity of its popularizing application in the distribution network and resident district in China .

文章阐述了高压单相配电技术的基本原理、特征，新型单相变压器的突出性能及其在我国广大城乡配电网、居民小区推广应用的必要性；

The power supply device is mainly in a structure of a three-phase to single-phase transformer and is additionally provided with a power compensation element .

该供电装置主要为三相变单相的变压器结构，附加有功率补偿元件。

A formula of link relation of three-phase transformer is deduced using three absolute single-phase transformer based on mathematical model of single-phase two winding transformer .

以单相双绕组变压器数学模型为基础，用3个独立的单相变压器表征三相变压器的每一相，推导出了三相之间的连接关系方程；

The paper brings out a few of measures to save energy including rational planning of grid , improvement of line loss management , public line , reactive compensation on-spot , promotion of single-phase transformer and elimination of timeworn facilities , etc.

提出了多种途径的节能措施，包括合理规划电网、加强线损管理、完善公用线路、公用台变无功就地补偿、推广单相变、淘汰落后用电设备等。

Research on Application of Single-phase Distribution Transformer in Urban Lower-voltage Grid

单相配电变压器在低压城网中的应用探讨

The article introduces the design of small power single-phase power transformer , and enumerates the instance of designing .

介绍了小功率单相电源变压器的设计，并列举了设计实例。

Optimization Design of Compensation Network of Phase-shift Full-bridge ZVS-PWM Switching Power Supply Research on Application of Single-phase Distribution Transformer in Urban Lower-voltage Grid

零电压开关PWM变换器补偿网络的研究单相配电变压器在低压城网中的应用探讨

Three Dimensional Field Analysis of Single-Phase Three-Limb Power Transformer Under Direct Current Bias

直流偏磁条件下单相三柱电力变压器三维磁场分析

Apply single-phase and three-phase transformer mixed supply power manners that can lower line loss largely and improve power supply stability and voltage rate at the aim of shorten low voltage line with high voltage into users .

在配电线路上采用单、三相变压器混合供电方式，以高压进户、缩短低压线路降低线损为目的，使配电线路线损有了较大幅度降低，提高了供电可靠率和电压合格率。

The leakage magnetic field , winding short-circuit force and strength are calculated and analyzed using the finite element method during the single-phase short-circuit in transformer such as three phase five limb transformer in the thesis .

本文以一台三相五柱式电力变压器为例，对该变压器发生单相短路时的漏磁场、短路电动力和绕组短路强度等问题进行计算和分析。

The harm of direct current bias to transformer is analyzed . The I - Φ curve of a large single-phase three-limb power transformer is calculated . The method to calculate direct current bias of transformer is presented .

分析了直流偏磁给变压器带来的危害，对一台大型单相三柱电力变压器的I-Φ曲线进行了计算，提出了变压器直流偏磁电流的计算方法。

This paper presents detailed analysis of the effect on the operation performance of asynchronous motor under non-rated frequency . It is POinted out that the analytical method and conclusions so obtained are also applicable to single-phase motor and transformer equipment .

本文就异步电动机在非额定频率下运行时的性能影响进行了详细分析，其分析方法和结论也可推广到单相电动机和变压器设备。

With the single-phase 3 winding transformer in PSCAD / EMTDC ( Electric-Magnetic Transient in DC System ), zigzag grounding transformer model was designed based on its configuration principle . Its efficiency and rationality have been proven by theory analysis and simulation results .

该设计方法依据Z形接地变压器结构原理，利用电力系统仿真软件PSCAD/EMTDC中的单相三绕组变压器模块，编辑设计了Z形接地变压器模型，并对其进行了理论分析和仿真验证。

The principle about the field-circuit coupled finite element calculation was studied and its application in commercial software was mastered . Secondly , the simulation analysis of no-load operation experiment in single-phase three-limb yoke-pressing transformer with DSP-241000kVA / 500kV was accomplished .

研究了场路耦合有限元分析的基本原理和方法，掌握了在商用软件中实施场路耦合计算的方法及过程。其次，完成了一台DSP-241000kVA/500kV单相三柱压轭变压器空载运行实验的仿真分析。

Analysis on Harm of Single-phase Earthing Fault to Transformer Operation

单相接地故障对变压器运行危害的分析

The main circuit is made up of three-phase uncontrolled rectifier , BUCK chopping circuit , single-phase inverter , high-frequency transformer , single-phase uncontrolled rectifier and filter .

主电路为发电机机端电压经过三相不控整流电路、BUCK斩波电路、单相逆变电路、高频变压器降压电路、单相不控整流电路以及滤波电路后输出给励磁绕组。

How to use VB ( Visual Basic ) Language to developing a high effective calculation software for single-phase electromagnetic type voltage transformer is introduced . The calculation software application principle and mathematic model are expounded . And its function is discussed .

介绍了如何应用VB（VISUALBASIC）语言开发高效的单相电磁式电压互感器计算软件，阐述了计算软件应用的原理与数学模型，论述了其功能。