Power Factor assurance given in the context of changes in the completion of reactive power compensation.
本课题通过设计一套由单片机控制的、用来实现并联电容器组的自动投切，保证功率因数在给定的范围内变动，完成无功功率的补偿。
It puts forward common style of reactive compensation to increase power factor of ore smelting electric arc furnace, focuses in describing running point of terminal compensation in power circle figure and deducing new calculating formulas of active power andcompensation capacity that can be reincreased.
重点介绍了采用电炉的功率圆图描绘表达终端补偿的运行特点，以及可以再增加的有功功率和补偿容量的新计算公式推导，同时介绍了自愈式电容器的选择应用。
2 If needed power factor compensation device, supplied by the Seller free.
如果需要功率因数补偿装置，则由卖方免费提供。
In section two, a scheme of moving compensation for monopulse radar is presented based on analyzing the effects of platform motion on MTI performance. The principle for compensating sum channel signals with difference channel signals to reject clutters is analyzed in detail. A formula of compensation factor is derived from the LMS criterion of the lowest residual power of the noise.
论文第二部分在分析平台运动对MTI性能影响的基础上，提出了单脉冲雷达运动补偿的方案，详细分析了利用差通道信号去补偿和通道信号实现杂波抑制的基本原理，并以对杂波剩余功率最小的LMS准则推导了补偿系数的公式。
By analyzing the load factor and unbalance factor of distribution transformer, the method of calculating and selecting the low voltage reactive power compensation capacity and compensation equipments, and the connection mode of capacitors were presented.
通过对配电变压器负载率和不平衡率的分析，提出低压无功补偿装置补偿容量的计算选择方法和电容器的接线方式。
Company's main product is the power of electronic products, including power semiconductor devices, the power of electronic switching, power semiconductor devices trigger controllers, low-voltage distribution equipment, low reactive power factor compensation control devices and semiconductor motor controller and the starter series.
公司的主导产品是电力电子产品，包括电力半导体器件、电力电子复合开关、电力半导体器件触发控制器、低压配电装置、低压无功功率因数补偿控制装置及半导体电动机控制器和起动器系列产品。
The electric current and voltage are close to the phase after compensating, namely the power factor is close to 1, so the purpose of dynamic var compensation is achieved.
由于补偿后的电流与电压在相位上接近，即补偿后的功率因数接近1，所以达到了动态无功功率补偿的目的。
Theprinciple and advantages of the in-situ watiless compensation technology are described, the methods for determining theoptimum compensating power factor an...
无功就地补偿技术在长庆油田的应用实践证明，采用该项技术可取得显著的节电效果，不到一年可收回全部成本。
Based on the wye-delta connection transformer, NPS current caused by traction substation and reactive-power compensation capacity are analyzed when reactive-power compensating devices are implemented in the primary or secondary side of the traction transformer respectively to correct power factor, which provides the theories leading for devising the compensation mode.
以Yd11接线型式的牵引变压器为例，分析比较了分别在牵引变电所一次、二次侧装设无功功率补偿装置校正功率因数时，负序电流及所需无功补偿容量的大小，为补偿方式的改进和优化等提供了理论依据。
The compound criterion whose main criterion was reactive power and whose assistant criterion effectively overcame the defects of the power factor criterion in which switching oscillation was often resulted in under light load and compensation was insufficient under heavy load. Compared with reactive power criterion, the compound criterion gave attention to decreasing power loss and improving voltage quality. AT89C52 was a sort of cheap Single Chip Microcomputer and was applied to control system of reactive power compensation device.
同时，在控制策略上将几种投切判据进行了比较，本文采用电压无功复合投切判据，以无功功率作为主判据，电压作为辅助判据，有效地克服了以功率因数作为投切判据的控制方式中的轻载时容易产生投切振荡而重载时容易出现补偿不充分的缺点；与仅以无功功率作为投切判据的控制方式相比，本文所采用的投切判据同时兼顾了降低功率损耗与改善电压质量。
Mian colors achieving high speed single way rainbow and scrolling effect 0-100% mechanical linear dimming (tunable from full blanking to full opening effect) Mechanical linear DIMMER and 1-10 times/s high speed STROBE effect Horizontal 450°and vertical 250°scanning range, smooth scanning action and accurate orientation Precise adjustment on horizontal and vertical position Precise speed adjustment on horizontal and vertical position Pattern internal light rotating function, freely adjusting fast, low speed, clockwise and anticlockwise GOBO position adustment Automatic focusing function 3 Prism effect, prism colorwise and anticolorwise rotating Built-in over heat protection and high voltage protection 2 convection cooling-fan, optimize internal air duct way, heat elimination rapidely Compatible with DMX512 international digital singal PFC power factor compensation According to various kinds of safety standards, IP20 protect grades, The cable accords to the CE20/22 standard
PERFORMANCE TRAIT 8种主色彩，同时可作高速单向滚动效果 0-100%机械线性调光（可控制全遮光到全开光效果） 1-10次/秒超高速频闪调整效果水平540度，垂直250度扫描范围，动作平滑、流畅、定位准确水平、垂直运动位置可精确调整位置水平、垂直运动位置速度可调功能旋转图案可正反、快慢自由调节旋转图案角度可单独调整采用电子自动对焦，图案远近均清晰度可自由调整三棱镜及棱镜正、反自由旋转功能二只对流风扇致冷，内部优化风路设计，散热充分良好内置过热保护、触发高压保护接受DMX512国际标准数码信号 PFC功率因素补偿符合各种安全标准，IP20保护等级，电源线符合CE20/22标准
Reactive power is an important factor to the voltage stability, and it is also related to secure and steady operation of the electric power systems. Reactive power compensation is one of the potent methods of maintaining the effective and reliable operation of the electric power system.
在电力系统中，无功功率是影响电压稳定的一个重要因素，它关系到整个电力系统能否安全稳定的运行，无功补偿是保证电力系统高效可靠运行的有效措施之一。
Reactive power; power factor; capacitor; contactor; relay; compound switch; reactive power compensation
无功功率；功率因数；电容器；接触器；继电器；复合开关；无功补偿
Do not have merit compensation through the analysis the action to power system, right distribution system undertook without merit compensation program the technology is compared 4 kinds, explain logical choice does not have result compensatory means and capacity, can raise power factor, reduce energy loss, improve voltage quality, achieve managing electric energy and the goal that improve electric energy quality thereby.
通过分析无功补偿对于电力系统的功能，并对配电系统四种无功补偿方案进行了技术比较，说明合理选择无功补偿的方式及容量，可提高功率因数，降低能量损耗，改善电压质量，从而达到节约电能和提高电能质量的目的。
The company independently developed YQ series of water resistance starter cabinet, GCBK capacitive electric starter motor soft start counter and cabinets, starting current due to small, start-up speed, high power factor, and its performance over conventional frequency counter-min variable resistance starter, anti-electric starter cabinets and counters autotransformer starter compensation, in the operation of general support of the users.
公司自主研发的YQ系列的水电阻起动柜，GCBK电容式电机起动柜及电机软起动柜，因起动电流小，起动速度快，功率因素高，其性能方面都超过常规的频敏变阻起动柜、电抗起动柜和自耦补偿起动柜，在运行中普遍得到用户的好评。
Methods of testing displacement power factor and nonlinear compensation of TCR using ANN were proposed and were used in SVC.
对采用基波无功功率因数检测方法和ANN 非线性补偿的SVC控制系统的进行了访真，给出了仿真结果。
Workless power is an important factor in designing and running of alternating current system. A compensation device is needed in substation and the end users to save electricity.
无功功率是交流电力系统设计和运行中的一个重要因素，为了减少电能损失，需要在电力用户端与电力系统的变电所内合理配置一定的无功补偿装置。
Because " DGB-2 Type Fast Track Dynamic Power Factor Compensation Device " has detecting circuit of reaching zero, the paper first analysis the harmonic detecting of starting to sample at reaching zero time and realize the upper harmonic detecting.
因为DGB&2型快速跟踪动态功率因数补偿装置具有过零检测电路。论文首先对过零时刻开始采样的谐波检测进行分析，实现了过零时刻开始采样的谐波检测。
In the design of power factor compensation-controller, the algorithm of circular queue data structure is adopted, the logical control of ″ first in first out ″ to compensative capacitors is realized successfully.
我们在功率因数补偿控制器的设计中，采用了循环队列数据结构的算法，成功地实现了对补偿电容器先投先切的逻辑控制。
Using this scheme can achieve the filter and improve the power factor requirements, and can solve the fixed capacitor compensation equipment installed substation caused over compensation issues.
利用这种方案能够达到滤波和提高功率因数的要求，并能解决变电所装设固定电容补偿装置造成的过补偿问题。