In the paper, the mostly work is the study on Middle-voltage Circuit Breaker PMA, its principle, the static characteristic, the dynamic characteristic and the control system.
本文主要工作是对中压断路器永磁操动机构的原理、静态吸力、动态特性及控制系统进行了研究分析。
The vacuum circuit breaker is a kind of switch equipment which is used in the middle-voltage field in the power system, which undertakes double tasks of controlling and protecting.
真空断路器是电力系统中压领域的一种开关设备，它担负着控制和保护的双重任务。
In the power supplying system, the implementation of the online displaying of the primary system diagrams of middle-voltage switchgear in various measuring and protection device is very important.
在电力系统中，中压开关柜一次系统图在各种测量及保护装置中的在线显示和实现非常重要。
The general power supply voltage 220 v or 380 v, the middle of the configuration of adjustable voltage transformer when necessary.
一般电源电压220伏或380伏，必要时配置可调节电压的中间变压器。
According to source voltage and middle DC voltage command, the parameters of the rectifier are chosen and optimized.
根据供电电网电压及中间直流回路电压给定，对主电路的元件参数进行了选择和优化。
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。
The maximal withstand voltage of single insulator for the middle string of single circuit tower is more than the side string.
对于单回线杆塔，中相串的单片绝缘子承受最大电压值比边相串高；
In operation all inspection doors must be closed. Low voltage lighting need to be placed at upper lower and middle section inspection door.
本机在工作时，所有检视门必须全部关闭，并应在上部、下部及中部经常打开的检视门处安设低压照明设备。
Combining with some power distribution project of small and middle theatre, the main load, the composition of power distribution system and low voltage power distribution system were introduced.
结合某中小型剧场的配电工程项目，对配电中的主要负荷、配电系统的组成及低压配电系统进行了介绍。
The last train travel of the year from Barcelona to Madrid, suddenly stops by a voltage drop in the middle of nowhere during a fierce snowstorm.
一年从巴塞罗那到马德里的最后一次火车旅行，突然在一场暴风雪中，在一个没有电压的地方突然停止了。
In this paper the type, topology, devices and control of foreign Marine converters is introduced, the trends of the Marine middle voltage high power propelling converters is discussed.
本文介绍了国外船用变频器的主要类型、结构、所用器件及控制技术，指出了船用中压大功率推进变频器的发展趋势。
This paper introduces a kind of Micro computer protective device for middle low voltage network buses from application point. Practices show that it will have wide application foreground.
从应用的角度出发，介绍了一种适用于中低压网络母线的微机保护装置。实践证明它将具有广阔的应用前景。
The principle figures of input stage middle gain stage and output stage for a usual two stage low-voltage CMOS operational amplifier and their principal performance are presented in the paper.
给出了一种常用两级低电压CMOS运算放大器的输入级、中间增益级及输出级的原理电路图，并阐述其主要工作特性。
This paper introduces a kind of Micro computer protective device for middle low voltage network buses from application point.
从应用的角度出发，介绍了一种适用于中低压网络母线的微机保护装置。
Putting the three-phase lines and middle line of the electrical circuit through the zero current transformer, the residual current signal will be converted into the voltage signal.
将电气线路的三相线及中线通过零式电流互感器后，零式电流互感器会把剩余电流信号转换为电压信号。
Middle Voltage Inverter; rectifiers; net communication.
中压变频器；整流器；网络通信。
This covers the middle 2/3 of the range that the integrator voltage covers.
这包括中东的2 /3的范围集成的电压范围。
In view of that, this paper puts forward a kind of distributed middle voltage busbar protection scheme based CAN bus.
为此，提出了一种基于CAN总线的分布式中低压母线保护方案。
In the final, process the actual test low frequency and middle-frequency electric voltage and current data, attains the accurate result and verifies the accuracy of the method.
最后，对变频调速电机的实际低频与中频电压、电流信号进行了分析，得出了正确结果，验证了该方法的有效性。
In high-middle voltage power system, the current setting of the charge-protection always bases on the fault current in the minimal operation mode, and the break should be snapped action.
在高中压系统，充电保护电流定值是按躲过最小运行方式故障电流整定，并要求瞬时动作；
The low voltage side of the main transformers in the substations of large and middle-sized plants USES operation mode in the single-bus sections.
大、中型工厂变电所主变压器低压侧常采用单母线分段的运行方式。
Screw , low, Middle and High Voltage, Large Capacity, High Ripple Current.
螺栓式、低压、中高压、大容量、耐大纹波电流产品。
Shunt reactor could be installed in the middle segment of the UHV transmission line, in order to compensate capacitive current of transmission line and limit over-voltage of line without load.
特高压长线路可能在线路中间接入并联电抗器，从而有效补偿线路电容电流，抑制空载线路过电压。提出了在特高压长线路中间带并联电抗器时的线路分相电流差动保护原理。
Small Current Grounding Power System is widely used in power distribution network with middle and low voltage in china, and the single phase to ground fault takes place most frequently in such system.
提出了一种基于线路分布参数的小电流接地系统的高精度故障模型，用于分析单相接地故障产生的暂态信号特征及进一步完善基于暂态信息的小电流接地故障选线判据。
Small Current Grounding Power System is widely used in power distribution network with middle and low voltage in china, and the single phase to ground fault takes place most frequently in such system.
提出了一种基于线路分布参数的小电流接地系统的高精度故障模型，用于分析单相接地故障产生的暂态信号特征及进一步完善基于暂态信息的小电流接地故障选线判据。
应用推荐