The transformation of the instantaneous value symmetry component applied, the positive sequence space vector of fault component of the voltage and current can be derived.
应用瞬时值对称分量变换，可提取电压、电流故障分量的正序空间向量。
Such high voltages were not acceptable for generation and consumption of power; therefore, a convenient means for voltage transformation became a necessity.
如此高的电压不发电和电力消耗可以接受的，因此，电压转换成为一个方便的手段的必要性。
The proposed method can effectively control the ferroresonance over voltage from the chaos to period orbit and implement the transformation of system status between chaotic and ordered situation.
该方法能有效控制铁磁谐振过电压从混沌状态转移到期望的周期轨道，实现系统状态在混沌和有序之间的转换。
Power electronic transformer (PET) is a new type of transformer, which realizes voltage transformation and power delivery in the power system through power electronic conversion.
电力电子变压器(PET)是一种通过电力电子变换实现电力系统电压变换和能量传递的新型变压器。
The transformer is mainly used for power transmission and distribution and voltage transformation, is one of the important equipment of electrical operation.
变压器主要用于电能的传输、分配和电压的变换，是电气运行中的重要设备之一。
The invention provides a method for controlling direct power of a grid-connected inverter without any non-AC voltage sensor and belongs to the field of electric energy transformation.
无交流电压传感器并网逆变器的直接功率控制方法，属于电能变换领域。
The high voltage variable frequency transformation of power plant's pump system of condensation water pump, condensation water booster pump is described briefly.
对发电厂的凝泵、凝升泵的高压变频改造进行了简要叙述，并对经济性试验的数据进行了定量分析。
Substations are key installations in the transmission and distribution grid that facilitate the transformation of voltage levels and the distribution of electrical power.
变电站的关键设施的输电和配电电网，促进转变电压等级和分配电力。
According to the theory of testing abrupt signals with wavelet transformation, the abrupt signals of current and voltage can be quickly detected when power system faults occur.
利用小波变换检测突变信号的原理，可以在电力系统故障发生的瞬间快速检测出电流或电压突变信号。
The transformation of Ri T DNA was examined through high voltage paper electrophoresis.
利用高压纸电泳法对毛状根和再生植株进行T-DNA转化的检测。
C voltage divider includes switching power and electricity - transformation, so that it can be used to design lower voltage of direct current power.
直流分压器集开关电源和电能变换于一体，可以用来设计降压型直流电源。
Voltage regulation and voltage transformation, to offer different requests of input and output voltage(On demand).
配备稳压变压综合功能，保证输入和输出电压完全不同时的稳压需求。（订购配置）
With rapid development of power system, the traditional periodical maintenance can not meet the need of secure operation of high voltage equipments for power transmission and transformation.
传统的定期检修已不能满足高压输变电设备安全运行的要求，以状态检修代替定期检修已成为电力系统设备检修的必然趋势。
Introduce the four stages of voltage transformation vacuum dry method and its technical performance.
介绍变压法真空干燥四个阶段、技术特点。
Recent years, multilevel inverter has been applied widely in the large-capacity electrical energy transformation of high-voltage and ac speed adjustable system.
近年来，多电平逆变器在高压大容量电能变换及交流电机调速中得到广泛应用。
Recent years, multilevel inverter has been applied widely in the large-capacity electrical energy transformation of high-voltage and ac speed adjustable system.
近年来，多电平逆变器在高压大容量电能变换及交流电机调速中得到广泛应用。
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