SVG静止无功发生器

SVG静止无功发生器应用场合：

 凡是安装有低压变压器地方及大型用电设备旁边都应该配备无功补偿装置（这是国家电力部门的规定），特别是那些功率因数较低的工矿、企业、居民区必须安装。大型异步电机、变压器、电焊机、冲床、车床群、空压机、压力机、吊车、冶炼、轧钢、轧铝、大型交换机、电灌设备、电气机车等尤其需要。居民区除白炽灯照明外，空调、冷冻机等也都是无功功率不可忽视的耗用对象。农村用电状况比较恶劣，多数地区供电不足，电压波动很大，功率因数尤其低，加装补偿设备是改善供电状况、提高电能利用率的有效措施。

SVG静止无功发生器应用优势：

1、补偿方式：国内的无功补偿装置基本上是采用电容器进行无功补偿，补偿后的功率因素一般在0.8-0.9左右。SVG采用的是电源模块进行无功补偿，补偿后的功率因素一般在0.98以上，这是目前国际上最先进的电力技术。2、补偿时间： 国内的无功补偿装置完成一次补偿最快也要200毫秒的时间，SVG在5-20毫秒的时间就可以完成一次补偿。无功补偿需要在瞬时完成，如果补偿的时间过长会造成该要无功的时候没有，不该要无功的时候反而来了的不良状况；

　　3、有级无极： 国内的无功补偿装置基本上采用的是3—10级的有级补偿，每增减一级就是几十千法，不能实现精确的补偿。SVG可以从0.1千法开始进行无极补偿，完全实现了精确补偿；

　　4、谐波滤除： 国内的无功补偿装置因为采用的是电容式，电容本身会放大谐波，所以根本不能滤除谐波，SVG不产生谐波更不会放大谐波，并且可以滤除50%以上的谐波；

　　5、使用寿命： 国内的无功补偿装置一般采用接触器或可控硅控制，造成使用寿命较短，一般在三年左右，自身损耗大而且要经常进行维护。SVG使用寿命在十年以上，自身损耗极小且基本上不要维护。

SVG static var generator

Application of SVG static var generator:

All installation of low voltage transformer and large electrical equipment should be equipped with side reactive power compensation device (which is stipulated by the state power sector), especially those of lower power factor, industrial and mining enterprises, residential areas must be installed. Large asynchronous motor, transformer, electric welding machine, punching machine, lathe, air compressor, press machine, crane, smelting, steel rolling, rolling aluminum, large switches, electric pumping equipment, especially electrical locomotive. In addition to incandescent lighting, residential areas, air conditioning, refrigerators and other reactive power is not to be ignored consumption targets. The power consumption in rural areas is very bad, the power supply is not enough in most areas, the voltage fluctuation is great, and the power factor is especially low. The installation of compensation equipment is an effective measure to improve the power supply status and improve the utilization of power.

Application advantages of SVG static var generator:

1, compensation: domestic reactive power compensation device basically uses capacitor for reactive power compensation, the power factor after compensation is usually about 0.8-0.9. SVG adopts the power module to carry out reactive power compensation. After compensation, the power factor is usually over 0.98, which is the most advanced power technology in the world. 2, compensation time: the domestic reactive power compensation device to complete a compensation, the fastest also 200 milliseconds time, SVG in 5-20 milliseconds time can complete a compensation. Reactive power compensation needs to be completed instantaneously. If the compensation time is too long, there will be no time when the reactive power is not needed;

3, there is no level: reactive power compensation device in China basically is used in 3 - level 10 level compensation per unit level is tens of law, can not achieve accurate compensation. SVG can start from the 100 method without polarity compensation, and fully realize the accurate compensation;

4, harmonic filtering: reactive power compensation device in China since the introduction of the capacitor, capacitor itself will enlarge harmonics, so no harmonic filter, SVG does not produce harmonic nor harmonic amplification, and harmonic filter more than 50%;

5 、 service life: the domestic reactive power compensation device generally adopts contactor or SCR control, resulting in shorter service life, generally in about three years, its own large losses, but also to maintain regularly. SVG has a service life of over ten years, with minimal loss and virtually no maintenance.