The role of pipe coupler

Solid state decoupler is usually used in the cathodic protection of the pipeline, generally to extend the service life of the pipeline. In the specific use of the pipeline there may be some failures, or thunderstorm and other bad weather affect its service life, which is to use the solid state to coupler. So, we for the solid state decoupler working principle, specific pain to understand? Solid state decoupler main uses: can effectively isolate the cathodic protection DC current, at the same time inhibit DC stray current reverse flow into the pipeline, and can exclude the normal cathodic protection voltage outside the DC stray current, the AC current of the coupler on the pipeline has the characteristics of low impedance full conduction, can effectively reduce the induction of pipeline AC interference voltage. Mainly plays a protective role, that is, the pipeline cathodic protection, reduce circuit failure, in order to extend its service life. This is because there are some drawbacks in the cathodic protection system of the pipeline, that is, electromagnetic interference, or the amount of stray current of the coupler, these stray but current caused by the interference in daily use, to a large extent, affects the service life of the pipeline. In this way, the solid state decoupler came into being, which can effectively eliminate the current conforming to cathodic protection, reduce the probability of failure and interference to communication, but also prevent lightning, thunderstorms and other bad weather damage to the pipeline.