It's significant to study the regulation of active power of three-phase synchronous generator by way of the alternating power source of three-phase industrial frequency.
三相同步发电机作为三相工业频率的交流电源，研究其有功功率调节具有重要意义。
Some cutting-edge photovoltaic cells offer an even higher initial efficiency but fall behind when the DC power they produce is converted to grid-ready alternating current.
一些先进的光伏电池甚至可以提供更高的效率，但是由于要把直流电源转化为交流电，转换效率有所降低。
The system generates a direct current, so using it to power DC devices locally is more efficient than switching to the alternating current needed to feed it back to the grid.
该系统产生的电流为直流电，所以用来驱动本地的直流点装置比将其转化为交流电输入电网来的更有效率。
Step down transformers provide low voltage AC power for lighting, instruments and other circuits that use alternating current at a lower voltage.
降压变压器低压AC电源提供照明，仪器仪表和其他使用交流电在一个较低的电压的电路。
Alternating current motor is the important power equipment applicated in various fields.
交流电动机是广泛用于各领域的重要动力设备。
On the railway of electrization, power supply mode is requested to be the single-phase alternating current.
在铁道电气化牵引区段，牵引供电网采用单相工频交流电供电方式。
Primary electrical power is provided by two engine driven generators which supply three-phase, 115 volt 400 cycle alternating current.
主电力是由两个发动机驱动发电机供应三相，115伏400周期交流电。
High power factor stabilized voltage supply is a kind of high performance alternating current power supply which can not only steady the output voltage but also enhance the input power factor.
高功率因数稳压电源是一种既能起到稳压作用又可以提高电源输入端功率因数的高性能交流电源。
With the alternating current that flows through the power distribution system, the superconducting cables do suffer some losses of energy.
对于输电系统输送的交流电，超导电缆在传导时确实会损失一些能量。
A three-phase alternating current parameters instrument to be used in industry is designed. It can measure the voltages, currents, power factors of each phase of three-phase alternating current.
设计开发一种工业用三相交流电参数仪，能够测得三相交流电各相的电压、电流、功率、功率因子等参数；
A new method to detect rotor cage fault of induction motor is presented, which monitors if the output power signal comprises a direct component and an alternating component or only a direct component.
通过判断电动机输出功率信号中是含有一个直流分量和一个余弦分量还是仅含有直流分量，判断鼠笼转子有无故障，提出了一种感应电机转子故障检测的新方法。
In commercial models, the oven has a power input of about 1000 watts of alternating current.
在商业模式，烤箱都有一个电源投入约100 0瓦的交流电。
AC fault security power source system is to provide alternating current for unit safety shutdown when power cut happens for a long time due to power grid failure or other reasons.
交流事故保安电源系统是当电网发生事故或其他原因致使火电厂厂用电长时间停电时，提供机组安全停机所必需的交流用电系统。
The article deals with the functions of DC AC series intelligent power inverters, software PWM technology and alternating voltage output modulation technology.
介绍了DCAC系列智能电源逆变器的功能，软件PWM技术及其交流电压输出调制技术。
As most of the power loads of the existing merchant ships are driven by the alternating current induction motors, it is necessary to study their drag torque mechanical characteristics.
现代民用船舶的大多数动力负载由交流异步电动机驱动，因此，对其负载阻力机械特性的研究很有必要。
Technology of alternating transmission has became the milestone of new technology in the tractive power field around the world.
交流传动技术已成为当今世界上牵引动力高新技术的标志。
A rectifier converts the power from alternating to direct form, a regulator ensures that the output voltage is properly matched to the battery voltage as engine speed varies.
整流器把电力从交流变为直流形式，调节器在引擎转速不同时确保输出电压与电池电压配合妥当。
Introduce using alternating contactor automatic control circuit to control the generator which are power on of powering off and stoping to ensure, the generator room to supply electricity safely.
介绍利用交流接触器自制控制电路来控制发电机的停电自动启动和来电自动停车，以确保机房供电安全。
It is intended primarily for alternating current (ac) power use, but has enough battery back-up power for an hour of operation.
该设备主要适用于交流电源(AC)，但是配备的电池储备电源足够使用1小时。
It introduces the methods of alternating current sampling for the power parameter of sing chip computer in ferroalloys furnace.
介绍了铁合金电炉单片机电力参数的交流采样方法。
Power supply or circuit capable of regulating either alternating or direct current within 5% of desired value, and limiting the open circuit (source) voltage to 20 millivolts maximum.
电源及能调节交流或直流电流在期望值的5%之内的，控制开路电压到最大20毫伏的路。
The method on surveying the short point of power cable caused by high voltage using alternating and direct bridge is discussed.
介绍了利用交直流电桥测量电力电缆高压短路点的方法。
These included alternating- and direct-current converters, and sensors that could moderate the power consumption of streetlamps, fridges and air conditioners.
这些产品包括交互式和直流转换器，能够节省路灯，冰箱和空调用电的传感器。
Further, the current quadrilateral and admittance quadrilateral, as well as their similarity to the power quadrilateral in non-sinusoidal alternating-current circuits were derived.
由功率四边形进一步确立了非正弦交流电路中的电流四边形和导纳四边形，以及它们和功率四边形的相似关系。
There are several alternate means of transmitting electric power, for example, by alternating or direct current, overhead or underground cable, and all over a wide range of voltages.
有多种送电途径可选择，例如由交流或直流，架室线或地下电缆送电并有各种电压等级。
The DC/AC conversion section converts a direct current inputted from a direct current power source into an alternating current, and outputs the alternating current.
该DC /AC转换部分直接转换为电流输入由直流电源成交流电，并输出交流电。
It was analyzed why the tolerance of the measurement unit of alternating current for high-power silicon rectification being large. Some concrete improvement measures on it was given.
分析了造成大功率硅整流交流电能计量装置计量误差大的原因，介绍了具体的改造内容。
It was analyzed why the tolerance of the measurement unit of alternating current for high-power silicon rectification being large. Some concrete improvement measures on it was given.
分析了造成大功率硅整流交流电能计量装置计量误差大的原因，介绍了具体的改造内容。
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