串联（滤波）电抗器

简介 INTRODUCTION

电容器在无功补偿回路中往往受到谐波电流、合闸涌流及过电压的影响，造成电容器容易损坏，因此串联一定比例的电抗器，用以抑制和吸收部分谐波，可以显著提高供电系统的可靠性和稳定性。在很多情况下，如电网谐波含量大时，则必须串联与电容配套的电

Capacitor will be affected and easily damaged by harmonic current, inrushcurrent and over voltage in the compensation circuits. Therefore, it is nec-

essary to be in series reactor along with the capacitors. It will restrainsome serious harmonic and improve the stability and quality of electricalsystem largely. When the harmonic is very serious, the reactor must beused.

串联电抗器的作用主要有 : 抑制谐波放大，并且滤除一定比例的谐波。

                                      经过精确搭配，与电容器串联组成无源滤波器，可以精确滤除某次谐波。

                                      抑制投入电容器时的涌流，保护电容器及其它元器件

                                      Restrain the harmonic and filtering harmonics.

                                      Make a passive filter with capacitors after strict matching.

                                      Restrain the inrush current to protect the capacitors and other components.

产品概述 PRODUCT OVERVIEW

CURTISS 生产的标准电抗器的电抗率为ρ= 7%，在 50 Hz 的电网中谐振频率为 189 Hz(60Hz 电网中谐振频率为 227Hz)。这一频率是最常见的调谐值，能避免 5 次及更高次的谐振发生。电容器、电抗器的组合方式能吸收部分 5 次谐波电流并滤除更高次谐波频率。在某些装置中，可以采用其它的ρ% 值，如 5.6 %(210 Hz), 6 %(204Hz),14 %(134 Hz) 等。

CURTISS 可以根据需要生产任何容量，p%, 电压和频率要求的电抗器。

低功率的 T 系列电抗器，铁芯采用低损耗的硅钢片制成，线圈采用铜线进行绕制。这种绕线方式能够获得足够多的端子。在需要更大容量的情况下，可以采用 TB 系列的电抗器，其铁芯采用磁板和多层硅钢片具有优越的电磁特性和较低的损耗率。其线圈采用铝带 ( 根据需要也可采用铜带 )。

T 系列和 TB 系列的电抗器均采用清漆浇注以提高其绝缘性能，因而提供了较大的阻值并减小了噪声。CURTISS 可以根据需要生产任何容量，p%, 电压和频率要求的电抗器。

CURTISS has a standard range of rejection reactors ρ= 7%, with a resonance frequency of 189 Hz for 50 Hz networks (or on demand227 Hz for 60 Hz networks). This is the most frequent tuning value to avoid any resonance of the 5th harmonic and above. The set ofcapacitors-reactors absorbs part of the current of the 5th harmonic and acts as a rejection filter for higher frequencies. In some instal-lations, other values of p% are required, for example 5.6%(210 Hz), 6% (204 Hz), 14%(134 Hz), etc.

CURTISS can build reactors on demand, which will be adapted to any power rating, p%, voltage and frequency.

Low-powered reactors, T type, are built with plates with low losses and are coiled with a copper conductor. The connection isachieved with the adequate terminals. In the case of higher power ratings, TB reactors are used, with a magnetic plate nucleus andmultiple steel cores, which offer excellent characteristics and a low loss ratio. Aluminum bandcoils are used (or copper band, ondemand) and the input and output connections run through a plate.

Both T and TB type reactors have a vacuum varnish sealing to increase the insulation, providing a greater mechanical resistance andreduce the level of noise.

技术参数  TECHNICAL DATA

产品应用 PRODUCT APPLICATION

产品应用 PRODUCT APPLICATION

企业标示 Manufacturer code

电抗器型号 Reactor model

电容器容量 (kvar) Nominal capacity(kvar) System output capacity

电容器额定电压 (VAC) Nominal volatage(VAC) System output votage

电抗率 (%) Detuning(%)

结构示意图 SCHEMATIC DIAGRAM OF STRUCTURE

产品选型 PRODUCT SELECTION

技术参数  TECHNICAL DATA