产品概述 Product description

PSTN-APFi装置与负载谐波源并联接入电网，高精度采样CT实时监测出补偿对象的负载电流，转换为数字处理器可读的信号后，通过检测算法计算出其中所需要补偿的指令电流，由补偿装置产生一个大小相等，相位相反的补偿电流，从而可以使得经过补偿后的电网电流就是所需要的理想电流，改善了电网的电能质量。

相对于采用无源器件构成的补偿装置，该补偿装置不易受到电网阻抗的影响，可以动态地对电网电流进行补偿，达到消除谐波净化电网的目的。

PSTN-APFi device and the load harmonic source are connected to the grid in parallel.High-precision sampling CT real-time monitors the load current of the compensation object.After the current is shifted into readable signal for digital processor,using detection algorithm to calculate the directive current needed to compensate.Then the compensation device produces an   equal   size,but   opposite   phase   compensation   current   to   make   the compensation current become the desired current,improving the power quality of the power grid.

Compared with   the   compensation   device   with   passive   components,the compensation device is not easily affected by the grid impedance,and can dynamically compensate for the grid current,achieving the purposes of eliminating harmonic and cleaning the power grid.

适用范围 Application

PSTN-APFi适用于380V-690V电压等级配电系统进行谐波治理。

在建筑、医疗、通信、工厂、煤矿、石化、数据中心、冶金和港口等行业应用比较广泛，这些行业的负载在运行中产生了大量的谐波源，给配电系统造成了严重的污染，导致生产中断或损坏配电设备。

PSTN-APFi is suitable for 380V-690V voltage level distribution system for harmonic management.

It is widely applied in the construction,medical,communications,factories, coal,petrochemical,data center,metallurgy and port and other industries. The   load   in   these   industries   generates   a   large   number   of   harmonic sources,causing serious pollution to the distribution system.So it results to production disruption or the power distribution equipment damage.

功能特点 Function features

● 可同时对谐波和无功进行补偿，输出容量从容性到感性连续调节；

● 滤波性能好，可滤除2~51次谐波电流，滤除率达95%以上；

● 全响应时间小于10ms，可快速跟踪变化速度极快的负载进行补偿；

● 不受电网阻抗影响，避免发生谐振；

● 具有过温、过流、过压、欠压等保护措施，保证装置安全、可靠运行；

● 采用模块化技术，体积重量小、安装简单方便、易于扩展；

● 采用高性能嵌人式一体化触摸屏，显示直观、操作便捷；

● 装置自身损耗小于3%；

● 采用通用的远程通信协议，便于远程监控。

·It can simultaneously compensate for harmonic and reactive power,and regulate the output capacity from capacitive to inductive continuously;

.Good filtering performance.It can filter out harmonic current 2 to 51 times, filtering out rate over 95%;

·Full response time is less than 10ms.It can quickly track fast changed load to compensate;

·   It is not affected from the power grid impedance,avoiding resonance;

·With   over-temperature,over-current,overvoltage,undervoltage   and   other protective measures,it can ensure safe and reliable operation of the device;

·Applying modular technology,it has small size and volume and is easy to install,easy to expand;

·Using   high-performance   embedded   integrated   touch   screen,it   has   the intuitive display,easy operation;

.   The loss of the device itself is less than 3%;

·Using a common remote communication protocol,it is easy for remote monitoring.

谐波治理前后对比 Comparison   before   and   after   harmonic   treatment