The electric locomotive is a kind of traction equipment for rail vehicle transportation. The power is to use the traction motor to drive the wheels to rotate, and use the friction between the wheels and the rail surface to make the locomotive run on the track. According to the structure, there are overhead electric locomotives and battery electric locomotives. Narrow-gauge industrial and mining electric locomotives and their supporting motor electronic controls are the leading products in the traction electrical equipment industry.
Electric locomotives have played a huge role in the construction and development of my country's mining industry. However, for many years, due to the low investment in product technology development by the companies affiliated with traction electrical equipment, most of the products are basically still at the level of the 1970s and 1980s. At the same time, emerging private enterprises also occupy part of the market share. With my country's entry into the WTO, foreign companies are also targeting the Chinese market, making the market competition more intense.
Overhead electric locomotive
The overhead line electric locomotive is the electric current transmitted from the traction converter to the overhead line through the receiver, enters the electric locomotive circuit and the electric locomotive, and then returns to the converter through the track. There are two types of DC voltages for underground grids in my country: 250V and 550V, and there are two types of 550V and 750V in the open air.