Rated frequency and the number of phases; 额定频率及相数;
The motor is permitted to directly start in conditions of rated voltage and rated frequency. 即IC611。电动机允许在额定电压和额定频率下直接起动。
Frequency-sensitive equipment shall be tested at rated frequency, and equipment marked with more than one frequency shall be tested at the frequency that will produce the maximum temperature rise. 对频率敏感的设备应在其额定频率下对其进行测定。设备上还要标明不只一个能使设备温度最大限度增高的频率值。
Rated parameters of filter capacitors are simulated and determined; and the filtering efficiency and parameter can be verified at rated frequency with and without deviation. 仿真计算滤波电容器额定参数等,并可在额定频率和频率偏差情况下进行滤波效益与参数校验工作。
A simple standard frequency tunable method which can be used to measure frequency switching time under the rated frequency deviation is presented. 描述了一种能在额定频差下测量频率转换时间的简便方法&标频调偏法。
The frequency bandwidth in hydraulic AGC system limited by rated frequency of oil cylinder 油缸固有频率对液压压下系统频宽的限制
The generating units, rated at 700 MW, will undertake the tasks of peak and frequency regulation as well as emergency standby in the power system, the design and manufacture complexities of the generating units have reached or exceeded the world advanced level. 机组单机容量700MW,在电力系统中担任调峰、调频和事故备用,其设计、制造难度已达到甚至超过当今世界水平。
The X-axis of the pattern represents the echo intensity, rated from O to 63 dB. The Y-axis represents the frequency of the echo on each level, the maximum frequency of which has been normalized to 100%. X轴为回声强度,0~63dB,Y轴示各强度回声频数,最大频数标准化为100%。
The rated output power of one module is 333 VA and the switching frequency of inverter is high to 100 kHz, the double loops control method with the feedback of output voltage and current are used. 该变流器采用了模块化结构,由3个333VA单相DC/AC变换器组合而成,最高开关频率达100kHz,采用了电流电压双闭环DPM滞环控制。
Three experiments were made to investigate the effects of the rated age of word acquisition ( AoA) and word frequency on the identification of Chinese double character words. 三个实验考察词汇习得年龄和频率在词汇识别中的作用。
The operating frequency of variable frequency adjustable speed motor is variable, and the traditional electromagnetic calculation of induction motor is done at rated frequency, so the traditional calculation program is not suitable for the calculation of motor under the conditions of low frequency and high frequency. 由于变频调速电机的运行频率是可变的,而传统的感应电机的电磁计算程序都是在电机额定频率下进行计算的,并不完全适用低频和高频时的情况。
NO.2 fan motor in Baotou Steel Factory secondary dedusting system did not work at rated frequency and rated speed, the total dedust air volume did not reach the technical requirement, the dust which drop from the plant is larger, and the environment pollution is serious. 包钢某厂二次除尘系统因2风机电机没有达到额定频率、额定转速运行,总除尘风量没有达到工艺要求,从厂房顶部外冒出的粉尘较大,严重污染环境。
Amplification conversion circuit, also known as the I/ F conversion circuit, when the rated constant current source signal is input into the amplification conversion circuit board, the corresponding frequency of the pulse signal output from the circuit board. 放大变换电路又称为I/F变换电路,即对电路板输入额定恒流源信号,则输出对应频率的脉冲信号。
Research on the static characteristics of piezoelectric driver. When drive power is at rated load ( capacitive), the frequency response and ripple specifications are directly related to whether the experimental platform contains high frequency response and high precision. 压电陶瓷驱动电源静态特性研究驱动电源在额定负载(容性)时的频响和纹波指标与实验平台是否具有高频响和高精度特性直接相关。
Frequency is one of the most important operational parameters of power system. Only with the rated frequency can the electrical devices work efficiently and safely. 频率是电力系统的一项重要指标,只有在额定频率范围内,系统和其中的各种电力设备才能够安全,稳定的运行。