可在三相晶闸管变流装置中应用。
This device can be used in three phase converter assembly using thyristors.
通过测量用户低压侧三相电流相量，通过特定的算法处理，准确判定用户高计TA的实际变比是否与铭牌一致。
Through measuring three-phase current of low voltage at user side and handling by specific algorithm, TA ratio of HV measuring can be accurately judged whether is consistent with data plate.
考虑三相异步电动机起动过程挤流效应对参数的影响，建立了变参数的等效电路。
Considering the effect of the skin-effect during the starting of three-phase asynchronous motor on the parameter, the author sets up an equivalent circuit of variable parameter.
最终混合编程检测软件、数据采集卡、电压互感器电路共同完成对电网三相电压波动和闪变的检测。
Finally, combining programming measurement software together with data-requiring card and potential transformer circuit complete the measurement of three-phase voltage fluctuation and flicker.
三相变四相电力变压器是一种新型平衡变压器，由此可以实现四相输电方式，也可以用于电气化铁道的AT供电方式。
The transformer may be applicable to either four- phase transmission system or AT power supply system in electric railways.
目前我国电能质量国家标准主要规定了五个指标：频率、谐波、电压偏差、三相不平衡及电压波动与闪变。
At present, our country power quality national standard was chiefly stipulated five quotas: frequency, harmonic and voltage deviation, three-phase unbalance and the voltage fluctuation and flicker.
YD系列变极多速三相异步电动机是三相异步电动机的主要派生系列之一。
YD series varible pole multi-speed three-phase asynchronous motors are one of the main series products deriving from three-phase series.
提出了一种用于电网侧三相电压不平衡情况下的永磁直驱式风力发电机的逆变控制算法。
This paper presents a new converter control algorithm for the direct drive permanent magnet wind generator under the unbalanced three-phase source voltage.
在此基础上研究了电能质量监测理论，详细介绍了电压电流有效值、功率、三相不平衡度、谐波和闪变的数字测量方法。
Based on this requirement, this paper introduced the theory of power quality monitoring, include RMS of voltage and current, power, three-phase unbalance, harmonic and flicker.
在冶金工业中使用的电弧炉可引起电网三相负荷不平衡，产生谐波引起电流闪变，严重影响电网电能质量。
Electric Arc Furnace (EAF) used in metallurgy industry often causes unbalanced three-phase load power, and therefore generates severs flicker to the grid, which seriously impact the power quality.
本文致力于三相大功率在线式UPS逆变系统的研究，这种UPS 将被广泛应用于工业、民用和军用等。
Three-phase inverter of large power on-line UPS, which is widely used in industry, civil and military and so on, is over-all studied in this dissertation.
提出用三相逆变桥电路实现单相电容电机变频调速的方案。
The paper proposes a scheme of using three phase inverter bridge to realize VVVF of single phase capacitor motor.
为三相全控桥带时变负载的分析提出了一种实用方法。
A practical analysis method is provided for fully controlled 3-phase rectifier with time-variable loads.
重点叙述了三相变应器的试验接线及参数估算方法。
The wiring of the test and the calculation method to estimate the parameters of the three-phase transformers are described mainly.
本文首次将滑模变结构控制应用于H型桥式DC-DC变换器、三相整流器和三相逆变器中。
SMVSC is firstly applied to H-model bridge DC-DC converter, three-phase rectifier and three-phase inverter in this paper.
阻抗匹配平衡变压器，是一种三相变两相的供电设备，已广泛用于我国电气化铁道。
The Balance Transformer Accroding to Impedance Matching which has been widely used in electric railway is a kind of three-phase to two-phase power supply equipment.
它涵盖五个方面：供电电压允许偏差、公用电网谐波、三相电压不平衡度、电力系统频率允许偏差、电压允许波动和闪变。
It covers five aspects: supply voltage tolerance, utility harmonic, three-phase voltage unbalance, power system frequency tolerance, voltage fluctuation and flicker.
与其它牵引变压器相比，三相变四相变压器具有较好的结构和平衡特性，可以用于电气化铁路AT供电。
Because of the better structure and balance characteristic compared with other transformer used in electric railway, the three-phase to four-phase transformer can apply to AT power supply system.
该供电装置主要为三相变单相的变压器结构，附加有功率补偿元件。
The power supply device is mainly in a structure of a three-phase to single-phase transformer and is additionally provided with a power compensation element.
该供电装置主要为三相变单相的变压器结构，附加有功率补偿元件。
The power supply device is mainly in a structure of a three-phase to single-phase transformer and is additionally provided with a power compensation element.
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