The core mass of single-phase and three-phase distribution transformers with wound core is analyzed and calculated. The examples are given.
对单相、三相卷铁心配电变压器的铁心质量进行了分析和计算，并给出了实例。
In the three kinds of limit conditions, the properties of the dynamics of the phase probability distribution, the phase fluctuation and the number - phase minimum uncertainty relation are studied.
研究了在三种极限条件下位相几率分布函数的动力学性质、位相涨落、粒子数—位相的最小不定关系等问题。
The distribution of surface charges in three-phase transmission lines is uneven and the electric fields of various points are different.
三相输电线路导线表面电荷的分布是不均匀的，各点电场强度的大小也不同。
On any of the three oscillations, the distribution of phase wasn't completely same in space.
振荡位相在空间的分布并不完全一致。
The operation of unbalanced three-phase loads of distribution network will increase power loss.
配电网三相负荷不平衡运行将增加配电网的电能损耗。
Based on the branch-current-based current method, this paper presented a three-phase state estimation method for Distribution where the load current is considered as the state variable.
在基于支路电流的三相配电网状态估计的基础上提出了以负荷电流为状态变量的配电网的三相状态估计方法。
In the second chapter, three-phase models for distribution system elements are established, which is the basis of three-phase power flow.
第二章建立了配电网络各种元件的三相数学模型，这是三相潮流计算的基础。
Pulse tracer method was used to measure the residence time distribution (RTD) in Two-dimensional Three-phase circulating fluidized bed.
用脉冲示踪法对二维三相循环流化床液体停留时间分布(rtd)进行了测定。
The three-phase analysis method should be applied for the distribution calculation of electrical traction load in the electrical system.
电力牵引负荷在电力系统中的分布计算宜采用三相分析法。
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。
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。
Results Distribution of a three-phase time of death.
结果死亡时间呈三相分布。
In the industrial power distribution system simulated and via RS-485 bus, the prototype realizes the control of general electric equipments, such as the three-phase motor, the fan, and so on.
样机实现了在模拟工业配电环境中通过RS- 485接口控制三相电机、风扇等常用电器设备。
They provide system security and immediate reliable low level ground fault detection on three-phase AC resistance grounded or grounded electrical distribution systems.
此类继电器能够增加系统安全性，并对三相交流接地电阻或接地配电系统进行可靠的低级接地故障检测。
The bubble size and its distribution has been studied in three-phase circulating fluidized beds by using the newly developed fiber optic probe system systematically.
用光纤探头技术对三相循环流化床中的气泡大小及其分布进行了系统研究，实验测定了操作条件对气泡大小及其分布的影响规律。
Voltage unbalance of three phase ac distribution systems adversely affects power customers.
配电系统三相电压的不对称会对用户造成一系列不利影响。
The bubble size and its distribution has been studied in three-phase circulating fluidized beds by using the newly developed fiber optic probe system systematically.
开发了一种新型的光纤探头多相流气泡测试系统，可用于气-液两相和气-液-固三相体系中气泡参数的测定。
A three phase distribution system state estimation algorithm is proposed in this paper which based on Newton method.
提出了一种基于牛顿法的三相配网状态估计算法。
Current distribution in three-phase cylindrical buses is calculated through simulation current method and magnetic field surrounding the buses can be calculated too after that.
为了研究建筑物配电房母线产生的工频磁场，根据配电房大电流母线集肤效应显著的特点，提出了采用模拟电流法对三相母线的矢量磁位进行计算。
The magnetic field distribution of three-phase dry-type reactor with air-core is calculated. Regular curves of magnetic-field distribution in some conditions are also presented in this paper.
对干式空心电抗器三相运行时的磁场分布进行了计算，并给出了几种情况下磁场分布的规律曲线。
The magnetic field distribution of three-phase dry-type reactor with air-core is calculated. Regular curves of magnetic-field distribution in some conditions are also presented in this paper.
对干式空心电抗器三相运行时的磁场分布进行了计算，并给出了几种情况下磁场分布的规律曲线。
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