查询词典 voltage changer

In this paper, dry-type transformers 10kV-circuit the development of a load voltage change-over switch, which uses advanced power electronics and opto-mechatronics technology, with the non-excitation voltage regulating transformer is converted to on-load tap changer functions, solve of the non-excitation voltage transformer without power interruption can not adjust voltage, voltage regulator is not convenient, and the shortcomings in time, and have the best communication interface

本文针对10kV 无励磁干式变压器研制一种有载调压转换开关，它采用先进的电力电子技术和光机电一体化技术，具有把无励磁调压变压器转换为有载调压变压器的功能，彻底解决了无励磁调压变压器不停电不能调整电压、调压不方便和调压不及时的弊病，并具备完善的通信接口，可方便地嵌入配电系统的电压无功控制和电力监控中，提高了变压器供电系统的自动化水平。

This paper introduced the electric current sensor principle of work and voltage pick-up each kind of parameter, elaborated hands over - hands over the frequency changer the principle of work, has made the simple description to its output current voltage waveform, in addition, this article logarithm has also given quite detailed showing according to the gathering technology.

本次论文介绍了电流传感器的工作原理及电压传感器的各种参数，阐述了交-交变频器的工作原理，对其输出电流电压波形做了简单的描绘，此外，本文对数据采集技术也作了比较详细的说明。

As a result of the frequency conversion electrical machinery particularity, uses the junction to hand over the frequency changer power supply the electrical power system, caused the electric current and the voltage waveform has the distortion, the profile turned the nonsine wave by the original sine wave.

由于变频电机的特殊性，采用交交变频器供电的电源系统，使得电流和电压波形发生了畸变，波形由原来的正弦波变成非正弦波。

By the analogy test, the arc suppressing effect of mechanical arcless on-load tap changer is clear, The scheme of arcless on-load voltage regulating system, which is consisted of thyristor controlled series transformer and thyristor controlled filter, is illuminated on electrical structure, control strategy and performance in details.

无弧有载调压技术的研究方向分为机械式无弧有载分接开关调压和静止无弧有载调压两个方面，通过模拟试验，对机械式无弧有载分接开关的灭弧效果和应用可行性进行了探讨。

This thesis carries out studies aiming at the impact of load characteristics and on load tap changer on voltage stability.

本文针对负荷特性和有载调压变压器对电力系统静态电压稳定性的影响展开研究。

The impact of load characteristics and on load tap changer on static voltage stability is analyzed with the methods based on V-Q and V-P curves, and the phenomenon of voltage stability voltage instability and voltage collapse are studied with steady-state simulation.

通过电压—功率曲线分析法定性分析了不同负荷特性和有载调压变压器对静态电压稳定性的影响，并通过静态仿真法从物理现象上研究了电压失稳和电压崩溃现象，最后针对这些现象给出了关于电压稳定、以及电压崩溃的本质解释。

For a constant impedance load or a constant current load, if regulating the secondary voltage by making the changer ratio higher, the primary voltage will get much lower while the load power is restoring, and the power will then lose balance. For a constant power load or a motor load, since the change of OLTC has no or little influence on the load power, the voltage of primary side almost has no change whether the tap operates or not. The influence on the voltage stability with respect to the dynamic restoring load which is sensitive to voltage is also discussed.

对于恒阻抗和恒电流型负荷，在变比上调恢复副边电压的情况下，负荷功率恢复，又使原边电压下降，可使系统功率失去平衡，而对于恒功率负荷和电动机负荷，OLTC的变化不会引起负荷功率的恢复，OLTC的变化对系统电压稳定有利；同时研究了对于一般电压敏感和具有动态恢复特性的负荷，反调分接头对电压稳定性的影响。

K.V.A.,step down transformars 11000/415V,DYN 11.three phase,50Hz,onan cooling oil immersed with conservator and tap changer,impedance voltage 4% at 65C

容量为200KVA，降压变压器，电压等级为11000/415V，联结组别为DYN11，三相，频率为50HZ，油浸自冷，带有储油柜和分接开关，阻抗电压：65C时，为4

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。