And the transformer can carried out the analysis and calculation of harmonic, phase discrimination, power factor, active and reactive power together with PC.
该互感器与PC机配合,可完成电力系统的谐波分析、鉴相、功率因数及有功、无功功率的分析计算。
C will cause harmonic flow reactive (power factor) compensation capacitor current increase significantly, resulting capacitor will soon be put into operation in damage.
c谐波将引起流过无功(功率因数)补偿电容器的电流显著增加,造成电容器投入运行不久就损坏。
This paper mainly introduces the power factor control method, reactive power(reactive current) control method, the performance and the applications of the dynamic & static compensation equipment.
文章主要介绍了静、动态补偿装置,其功率因数控制方式、无功功率(无功电流)控制方式、性能及应用场合。
While transmitting the load power, the high-voltage transmission line consumes the active power of its own, and absorbs or outputs the reactive power, which affects the power factor significantly.
高压输电线路在输送负荷功率的同时自身也消耗有功功率、吸收或输出无功功率,线路无功会对功率因数产生很大影响。
Automatic compensation load reactive power, enhancing the load power factor.
自动补偿负荷无功功率,提高负荷功率因数。
When reactive power is unbalance, it will cause some problems, such as lower voltage, worsen voltage quality, lower power factor and increase line loss.
当无功功率不平衡时,将会导致系统电压降低、电能质量下降、功率因数降低、线损增加等问题。
The power factor for the railway substation of the electrified railway is low and can not meet the conditions of severe tractive load to reactive compensation requirements.
针对电气化铁路变电所功率因数低,不能满足剧烈变化的牵引负荷对无功补偿要求的现状。
It can figure out active power, apparent energy, reactive energy and power factor parameter and so on in software system.
用软件系统计算出有功电能、视在电能、无功电能及功率因数等参数。
The host computer finishes the calculation of active power, reactive power and power factor, inquire fuzzy form of controlling , give and publish the controlling amount.
工控机完成有功功率、无功功率以及功率因数的计算,并查询模糊控制表,给出控制量。
In ac power network, the way of phase-shifting capacitors to compensate reactive power loss is always adopted to raise network power factor.
在交流电网中,常常采用移相电容器补偿无功功率损耗的方法来提高网络的功率因数。
With the elevation of the power factor, reactive power on stator descends gradually, so the aim of saving energy and reducing wastage can come true.
电机功率因数的提高,定子侧的无功功率逐渐下降,从而达到了节能降耗的设计目标。
The power factor of power system will be decreased by under-compensation of reactive power and it is harmful for the devices of customers while the power in the three phases are unbalanced.
电力系统无功功率补偿不足会引起功率因数下降,而三相功率不平衡则会影响到用电设备的安全。
It concludes that reactive compensation can increase power factor. Economical transformer operation can decrease energy loss. Power demand control can shed maximum peak load and lower productive cost.
无功补偿可以提高功率因数,变压器的经济运行可以最大限度地降低变压器的电能损耗,需量控制能够降低企业最大峰值负荷,降低生产成本。
This article explains main factors to influence power factor in electrical network, common methods of reactive compensation in low voltage network, and the benefits of reactive compensation.
文中分析了影响电网功率因数的主要因素、低压电网无功补偿的常用方法及无功补偿的效益。
Reactive power is affecting the voltage quality was a major factor in the quality of voltage and reactive power are inseparable.
无功电力是影响电压质量的一个重要因素,电压质量与无功是密不可分的。
After started, induction motor is changed into synchronous operation not only to improve its power factor, but also to supply reactive power for power supply and improve system power factor.
异步电动机同步化指绕线式异步电动机起动后,变成同步运行后不仅可以提高该机的自身的功率因数,还可以向电网提供一定的无功功率,提高整个系统的功率因数。
In an electric power system, the following parameters often need measuring: voltage, current, power factor, power, reactive power and apparent power.
电力系统中常需测量电压、电流、功率因数、有功功率、无功功率和视在功率等参数。
Reactive power is a crucial factor for the design and operation of ac power systems, and is closely bound up with the safety, stabilization, and economical operation of the power system.
无功功率是交流电力系统设计和运行中的一个重要因素,它与电力系统的安全稳定和经济运行息息相关。
The reactive power compensation is a important means of enhancing power factor, otherwise, by remote control, loss statistic and line rebuilding also can reduce the line loss.
提高功率因数的一个重要办法就是无功补偿。另外通过远动监控、线损统计、线路改造等措施,也可以降低线损。
The common methods of compensating reactive power are introduced to raise the power factor of electric equipment, such as those of using synchronous motors and parallel capacitors.
介绍采用同步电动机和并联电容器进行无功补偿等常用的无功功率补偿方法,以提高用电设备的功率因数。
Regulating power factor of central substation by controlling reactive power amount can achieve the goal of reducing economical loss.
通过控制无功补偿量,调节中央变电所进线系统的功率因数,可达到减少经济损失的目的。
The closed loop control of instantaneous reactive power is used to realize the constant power factor and suppresses the reactive power impact.
系统通过瞬时无功功率闭环,实现了功率因数的恒定控制和无功功率的无静差调节。
Reactive power is an important factor to the voltage stability and power lossing, and it is also related to secure and steady operation of the power systems.
无功功率是影响电压稳定和产生电损的一个重要因素,它关系到整个电力系统安全稳定的运行。
It improves the quality reactive current compensation effectively and the power factor highly with lower capacitor costing and switching frequency.
它不仅有效地提高无功电流的补偿质量,改善了供电系统的功率因数,而且并联电容的成本和投切频率都很低。
The reactive power compensation principle and method of constant power factor control are studied theoretically . and experimentally.
然后阐述了可控电抗器恒功率因数控制的无功补偿原理和实现方法,并进行了无功补偿实验。
With the load growth of distribution system, reactive demand rises in order to increase power factor, voltage quality and transmission efficiency.
随着配电系统负荷日益增长,无功需求也相应增加,配电线路广泛采用并联电容器来满足无功需求。
Research shows the SVG can effectively compensate reactive power and govern power factor of the grid the voltage fluctuation when the chargers work in the charging process.
结果表明充电机工作于充电过程时,SVG可以对无功进行有效的补偿,对电网的功率因素、电压波动具有有效的治理作用。
Research shows the SVG can effectively compensate reactive power and govern power factor of the grid the voltage fluctuation when the chargers work in the charging process.
结果表明充电机工作于充电过程时,SVG可以对无功进行有效的补偿,对电网的功率因素、电压波动具有有效的治理作用。
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