power transformer is used to electric energy generated by the generator voltage, the circuit breaker control device is connected with the transmission line to achieve. according to the structure of the form, the transmission line is divided into overhead transmission lines and cable lines. routing overhead line tower transmission lines, conductors, insulators, wire, gold line, tower foundation, gr
coal chemical coal as raw material, through chemical processing coal into gas, liquid and solid products or semi products, and then further processed into chemical, energy products process.mainly including coal gasification, liquefaction, carbonization, and tar processing and calcium carbide acetylene chemical etc. with the world oil resources are decreasing, coal chemical industry has a broad pro