额定负载

对感应电动机的两种矢量控制模型在空载、额定负载和负载发生变化情况下做仿真实验，获得了SVM逆系统的训练和测试数据。

Make simulation experiments of two induction motor vector control model when in the situation of unload , rated load , the load changes , obtained the training and test data for SVM inverse system .

在额定负载（振子）下电枢的任意位置。

At rated load ( vibration weight ) any position of rotor .

降低电压法额定负载工作特性计算方法的探讨

Calculation of Performance Characteristics under Rated Load with Reduced Voltage

如果电机带额定负载起动就不会成功。

The motor with high load may fail to start .

短路保护测试是在其它额定负载时测试。

The Short Circuit protection should be tested at other load rating .

在低于额定负载时，电机的运行效率较低；

The efficiency is quite low when the motor is running under the rated load .

试验表明，在四分之一额定负载下，效率可以提高百分之十以上。

The expremental results shows ten percent or more improvement in the efficiency is obtained at a quarter of the full load .

在额定负载能量下有效使用寿命大于10~7次。本文主要讨论灯的物理与工艺参数对其负载特性和辐射特性的影响。

The effects of the physical and technical parameters of the lamps on the maximum energy loading and radiative characteristics are described .

请绝对不要起吊超过额定负载量的物件，额定负载量在起吊钩铭牌上已标明。6。

Please Never exceed the rated load capacity of lifting objects , rated load hook plate in the beginning has been marked .

这为设计额定负载时低甚至零电压调整率的永磁同步发电机提供了可靠的依据和有效途径，减小了设计中的盲目性。

The findings offer the reliable foundation and effective method to the design of the zero even negative voltage regulation on rated load .

用迭代的方式确定了额定负载下定、转子磁势的大小及空间位置关系。

The values and the spatial location relations of the magnetic potentials for the stator and rotor at the rated load are determined by iteration .

系统仿真和实验结果表明，当电机实际运行负载低于45%额定负载时，电机能保持高功率因数运行，且节能效果显著。

The result of systematic emulation and experiment indicate that the energy-conserving result is remarkable , with actual load lower than 45 % specified load .

针对1台1000kW的电动机，经过大量计算，得到了在75%额定负载和额定负载两种情况下，在16个不同的初始功角下投入额定励磁时，同步电动机牵入同步的动态过程；

Through numerous calculation , the pulling into step of a 1000 kW synchronous motor is obtained with 16 different initial power angle under 0.75 rated load and rated load .

这种单位功率因数三相桥式整流的输入电感是在额定负载下计算出的，当负载发生变化时，其功率因数会降低。

The input inductor of the near unity power factor three-phase full-bridge rectifier is determined in the nominal operating point . With the load variation , the input power factor will be degraded .

而在许多实际应用领域中（如：球磨机、粉碎机、矿井起重机等等），通常要求能带重载甚至是超额定负载起动。

Unfortunately , there are many applications that the motor needs to start with full load or heavy load , such as Ball mill 、 Grinder 、 Mine pit hoist crane and so on .

利用该方法推导出了功率电路设计所要求的各个部分与电网电压畸变率、额定负载、负载功率因数及系统是否进行无功补偿的关系，得到了明确的解析表达式。

Using the methods , the relations between the power circuit and the distortion ratio of utility voltage , the rating load , the power factor and the VAR compensation conditions are then analyzed , and the analytical expressions are derived .

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。

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 .

异步电机轻载，尤其是低于20%额定负载率时，其效率和功率因数会明显降低，对于长期轻载运行的异步电机，存在着很大的节能空间。

When induction motor operates underload , especially lower than 20 % the rated load , its efficiency and the power factor will drop obviously . So the induction motors carrying lightly for the long time have the very big economy energy space .

在实际运行中，需要机房空调全功率、长时间运行，只要机房设备在运行，机房空调就必须开机。实际空调热负载在绝大部分时间远比额定负载低。

However in practice , it required air-conditioned run with full power for a long time , as long as the engine room equipment is in operation , and the actual hot air-conditioning load is much lower than the design load in most of the time .

最后实例计算了一台三相感应电动机在1／3额定负载和额定负载两种工况下运行时，瞬间断电和重合后电磁转矩和定子电流的冲击峰值，得到了一些有用的结论。

Finally , the peak values of reclosing transient electromagnetic torque and stator current are calculated for a induction motor under rated and 1 / 3 rated load . Results show that the maximum peak value of transient torque can exceed the peak val-ue of starting torque .

介绍了超额定电流负载系数和时间的计算方法；

The paper introduces the calculation about overload factor and time duration .

在1kVA的样机上进行实验研究，其结果在额定阻性负载下的稳态总谐波畸变率（THD）为2.49%，空载与额定负载间阶越变化下的电压调整率为6.75%。

The total harmonics distortion ( THD ) for a 1 KVA prototype at rated resistor load is 2.49 % with the voltage regulation for a step change from null load to rated load of 6.75 % .

在忽略电机定子绕组电阻的情况下，计算出当发电机带额定阻性负载及几种感性负载时的电磁力，并绘制电磁力曲线，使结果一目了然。

In the condition of ignoring the resistance of stator winding , the electromagnetic forces when generator with resistance load and several kind of different impedance load are calculated , and electromagnetic force curves are drawing , so the result would be clear at a glance .

在额定电压和额定负载（振子）下。

At rated voltage and rated load ( vibration weight ) .

在负载电流达到额定值时，负载的端电压就是负载的额定电压。

When load current is meeting , the load voltage is the rated value .

当输入电压变化、输出从空载变化到额定阻性时，输出电压变化量小于1.3%，正弦输出电压波形失真度小于2%，变换效率最高为86.3%，额定阻性负载时效率为84.4%。

When the input voltage varies from 40V to 60V and the output side varies from no load to rated resistance load , the output voltage will vary within 1.3 % with the THD of less than 2 % and the highest efficiency of 86.3 % .