Fuzzy control tests of arc voltage and short-circuit frequency are conducted to improve welding quality.
采用模糊控制技术,实现了电弧电压或短路频率的控制,提高了焊接质量。
Because the voltage measuring error increases when phase to phase short circuit occurs, distance relay protection will act improperly.
但是短线路在两相短路时,由于测量电压的误差会放大,可能引起距离保护的超越。
Using the concept of virtual short circuit and virtual open circuit, the voltage gain of depth negative feedback circuit can be estimated.
利用“虚短”和“虚断”的概念来估算深度负反馈电路的电压增益。
There is touching voltage between body touch electric equipment case with electricity point and stand-up point in loop of short circuit ground.
在短路接地回路上,人体接触电气设备带电外壳的点与站立点之间存在接触电压。
Breadth power supply electric voltage short circuit auto protect.
宽电源电压,短路自动保护。
The primary failure mode of commomly used circuit protective devices is short-circuit, and so is TVS (Transient Voltage Suppressor) .
常用电路保护器件的主要失效模式为短路,瞬变电压抑制器(TVS)亦不例外。
This paper introduces a short circuit protective method of the output terminal of the low voltage rectifying cabinet. Analyzes in detail the operational principle of the protective circuit then.
介绍了低压整流柜输出端短路保护的方法,并详细分析了保护电路的工作原理。
By analysis and calculation for short circuit current of low voltage motor, kinds and protection methods of short circuit of the low voltage are explained.
通过对低压电动机短路电流分析和计算,说明低压电动机短路的种类和保护方法。
The equation is given which explains the relation between resonance frequency and capacitor bank capacitance, bus short-circuit capacitance and bus rising voltage value.
本文分析了谐振次数与电容器组容量、母线短路容量以及母线电压上升值之间的数学关系。
With fixed frequency control circuit, it provides with over voltage, over current, overheat and short circuit protection.
该系列电源适配器,采用固定频率控制电路,具备限流、限压、过温、短路全功能保护。
Based on the fundamental of electromagnetics, are summarily derived idle, load and short-circuit voltage as well as current and leakage reactance formulas.
并根据电磁基本原理推导出空载,负载和短路时的电压、电流和漏抗的计算公式。
Too high an open circuit voltage reduces the frequency of short circuiting.
一太高的开的回路电压降低短路的频率。
Measures to increase the open circuit voltage, the fill factor and short circuit current density are discussed both theoretically and technologically for an efficient silicon solar cell.
本文从理论上和工艺上论述了高效率硅太阳电池的研制情况,分析了如何提高硅太阳电池的开路电压、填充因子及短路电流密度的措施。
Meanwhile, the clamp circuit will limit the output voltage or current at a fixed value when they are abnormal that caused by a DUT short circuit or other fault in order to protect the device.
当被测dut发生短路或其他异常导致电流或电压过高时,钳位电路会将输出电压或电流限制在一个固定值上,以保护器件不被损坏。
According to "virtual short" and "virtual-off" feature, available to the circuit passband voltage gain and pass-band cut-off frequency.
根据“虚短”和“虚断”的特点,可得到电路的通带电压放大倍数和通带截止频率。
Simulate the avalanche circuit in series with PSPICE module, design the high voltage short plus generation circuit by avalanche transistor in series for the sweep deflection circuit of streak camera.
运用PSPICE模型对串联雪崩电路进行了仿真,设计出了用雪崩三极管串联的高压短脉冲产生电路,该电路可以用于条纹相机中的扫描电路。
Explicit formulas for the constraint admittance matrix and the nodal short-circuit current source vector of networks containing ideal voltage sources are derived by nodal approach.
本文用节点法分析了含理想电压源的网络,从网络的不含源导纳矩阵获得了含源网络的约束导纳矩阵以及节点短路电流源向量的公式。
Based on the analysis of main fault types of LV (Low Voltage) flameproof motor, the negative sequence protection principle is proposed for its asymmetric short circuit fault and open phase fault.
通过分析低压隔爆电动机的主要故障类型,针对不对称性短路故障和断相故障提出了采用负序保护原理进行保护的方案。
We proposed a new method to distinguish the lightning strikes and common short-circuit faults on the basis of the characteristic of the bus voltage signals using S-transform.
基于行波特征区分雷电冲击与短路故障有一定局限性,提出一种利用母线电压信号特征识别雷击与短路故障的新方法。
Using fluorescent and incandescent as light source, basic features of solar cells such as short circuit current, open voltage, maximum output filling factor and so on were measured.
分别采用白炽灯和日光灯作为光源,测量了太阳能电池的伏安特性、开路电压、短路电流、最大输出功率、填充因子、光照特性等基本特性。
WJJL1 intelligence over current relay is a typical electronic apparatus which has over current, short circuit, over voltage, under curent, phase faults and starting failure protective functions.
WJJL1智能过流继电器是典型的电子、电器技术相结合的产品。具有过电流、短路、缺相、过欠压、欠电流、相失衡及启动故障等保护功能。
Selection of fuses must be carried out according to their use conditions, mainly they are system voltage, rated current, short circuit capacity, protection suitability etc.
熔断器选择必须依据其使用条件来进行,主要有系统电压、额定电流、短路容量、保护配合等。
The ARD has perfect performance on short circuit, Over current and over voltage protections.
电梯自动救援装置输出具有超强的短路、过流、低压保护。
The system is composed of short-circuit simulation equipment based on SIEMENS S7-200 PLC, compiling-controlling flat on PC and high voltage simulation controlling equipment.
该系统由SIEMENSS7- 200PLC为核心的短路故障模拟控制器、上位PC机编程-控制平台和一次模拟控制设备三部分构成。
The proper setting of threshold is crucial for the early prediction of the short circuit fault in the low-voltage distributed system when using the method of wavelet decomposition.
当采用小波分解方法对低压配电系统短路故障进行早期检测时,门限值的合理设置对故障检测的可靠性及灵敏度是至关重要的。
There should be no short circuit at the secondary winding for a voltage transformer, or the voltage transformer would be damaged.
电压互感器二次绕组不得短路,否则互感器将被烧毁。
Two parallel high voltage wires may intersect under the haze day. We aren't wires, we can not joint, or we will short circuit.
只有在阴霾的天空下的两条平行高压电线可以做到相交,还好我们都不是电线,不能相交,也避免了短路。
Short-circuit test measuring system in high power laboratory is a very important component of high voltage measuring technology.
大容量实验室短路试验测量系统是高电压测量技术的重要组成部分。
An ideal current source would provide no energy to a short circuit and approach infinite energy and voltage as the load resistance approaches infinity (an open circuit).
一个理想的电流源将提供没有力气短路和方法无限的能源和负载电阻接近无穷大电压(开路)。
Circuit design should be noted, POSCAP is polarized capacitors, the reverse voltage will cause increased leakage current or short circuit.
线路设计时应该注意,POSCAP是有极性的电容器,反向电压会造成漏电流加大或短路。
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