提供了一般低压配电网主电源侧短路电流计算的公式。
A formula for short current calculation in low voltage power grid distribution was put forward.
分别在断开器壳体(2)的前面和背面上在上下方向排列了三个负荷侧端子(4)和电源侧端子(5)。
Three load side terminals (4) and power supply side terminals (5) are respectively arranged along the up-down direction on the front and the back of the decoupler casing (2).
并经过仿真计算和数据的验证表明该选相原理的正确性,能满足现场弱馈选相的要求,从而有效地解决了弱电源侧的选相问题。
The principe is based on model component analysis. The ATP simulation calculation and the data certification show that the principle is correct and can meet the re…
机侧的配置全部集中在右边,包括一颗电源键、快门键(这个 N9就没有了)和音量按键,而机身下方就有扬声器。
The right side of the phone is adorned with a volume rocker and power button, and the left is completely bare -- just super sleek, curved polycarbonate.
请勿接触任何会为通向被测电路的共用侧或电源地的电流提供通路的物体。
Do not touch any object that could provide a current path to the common side of the circuit under test or power line (earth) ground.
对晶闸管CO2焊接电源焊接过程主变压器一次侧产生的谐波信号进行采集分析,以此研究焊接电源对电网的影响。
This paper collects and analyzes the harmonic signals of the CO2 welding machines main transformer, by which researches the effect of welding power source on the main.
新型开关电源从网侧接入点获得单位功率因数。
A new type of switching power supply realize of the unity power factor from the network access point adjacent.
在谐振接地系统中,系统高压侧不对称故障及负荷的不对称会引起系统电源电势的不对称,从而改变中性点位移电压。
In resonant ground systems, both asymmetric fault of high-voltage side and asymmetry of load cause the asymmetry of system electrical source voltage. Then they change neutral displacement voltage.
只需检测两相电源电流和直流侧电容电压,通过简单计算就可直接求出每个开关周期内各开关的占空比。
The duty ratios of switches in each switching cycle can be directly obtained by simple calculation using two phases source currents and dc bus capacitor voltage.
电机系统emi无源滤波器由电源滤波器和输出侧滤波器组成。
So EMI passive filter of motor system is composed by mains filter and output side filter.
然后,研究在各种EBG结构下,在电源和接地层内侧(即靠近介质层的一侧)增加高磁导率材料涂层对供电系阻抗特性的影响。
Then, we focused on the EMI problem from the power bus structure using both such EBG structures and the magnetic material coating on the power and ground planes.
通过对发电侧电源配置的分析,阐明大功率柴油机电厂的优势及对电网稳定运行的重要作用。
Through the analysis of disposition of power source side, the superiority of high powered diesel power plant and its importance on stable operation of power network are presented.
注:空载制动时间为直流侧切断制动器电源的制动时间。
Note: brake lag time of the DC power supply cut is no-load brake lag time.
有源型电子电流互感器高压侧工作电源的取能方式是影响互感器可靠性和精度的关键环节。
How to obtain working power supply from high voltage side of active electronic current transformer (ect) is the key link impacting the reliability and accuracy of the instrument transformer.
实验表明,作为双馈感应发电机转子励磁电源的三相pwm变换器具有功率因数高、网侧电流谐波小、能量双向流等优点。
Experimental results show that three-phase PWM converters are advantageous in high power factor, small input-line current harmonic distortion and bi-directional power flow.
只有载体侧FET(场效应晶体管)开关需要电源,载体本身基本上不需要电源。
As we need only electrical power for FET switching on the carrier side, power supply system for carrier is basically not needed.
本文设计了一种适用于中大功率、便携式逆变焊机,具有电源输入侧功率因数高,主功率器件实现软开关等特点。
In this paper, a multifunctional welding machine is designed with the characters of high power factor, soft switching and portable remove.
通流容量与系统开机容量、线路长短及合闸电阻两侧系统电源的相位差有关。
The energy depends on the unit-operating capacity of system, length of lino and the phase angle difference of sources both sides of the closing resister.
车体外部两侧需安装指示灯(LED防爆型),每车不得少于6盏(一车一直流电源)。
Car body external indicator light (led explosion-proof type), need installed on both sides of each car shall not be less than 6 light (a car has been flow power supply).
针对这种情况,从保护原理上对其超越情况进行分析,并对距离保护在双侧电源短线路的保护配合提出看法。
In this connection, the override is analyzed in terms of protection principles. Suggestions on protection coordination of short line with duplicate supply are put forth as well.
所有的模拟和电源管理“胶连”的进入让一个单一设备实现了整合,提高了侧寻性能,降低了整个系统的成本。
Sweeping all the analog and power management "glue" into a single device achieves integration, improves sequencing performance, and reduces overall system cost.
接通电源并将侧轧剪开关推上。
分析了电网侧和中频电源交流侧的谐波特性,并针对中频电源提出了几种谐波抑制措施。
So harmonic current should be suppressed firstly rather than harmonic voltage. The harmonic characteristic on the network side and the ac side of medium-frequency power supply is analyzed.
本文针对目前光电混合式电流互感器的高压侧电源的要求,提出了光推动和在线式电源两个方案。
In the paper aiming at the demand of power supply in the passing hybrid fiber current, we lodge two projects: laser-driving and online to provide power.
一种尘肺病治疗诊断装置,包括具有可移动床面的床体,在床面上下两侧对置设置一组电磁线圈,使床面置于强磁场之中,电磁线圈外接磁化电源。
The said apparatus includes a movable bed, a set of electromagnetic coils oppositely mounted over and below the bed, and a magnetizing supply for electromagnetic coils.
针对统一潮流控制器在逆变变换过程中所具有的直流侧电压不断波动的特点,提出了动态SPWM方法,以克服逆变电源的直流电压波动对SPWM法的逆变输出的精确性所造成的影响。
Taking account of the voltage floating of the DC side of Unified Power Flow Controller in working process, a dynamic SPWM method is proposed, to promote the accuracy of the output of the inverter.
针对传统电流突变量和电压突变量选相元件不能同时满足强弱电源系统侧保护要求的缺点,提出一种新的突变量选相原理。
A novel fault phase selector by fault component of compensation voltage based on traveling wave is presented for high-speed protection.
针对传统电流突变量和电压突变量选相元件不能同时满足强弱电源系统侧保护要求的缺点,提出一种新的突变量选相原理。
A novel fault phase selector by fault component of compensation voltage based on traveling wave is presented for high-speed protection.
应用推荐