When did powered trains become famous?

The power train composed of Yan Zhilin and You Qiuxing has always allowed Taiwan's ** workers to see a positive inspiring force Their civilian and down-to-earth style Work hard to win the applause and attention they deserve For the Taiwanese music scene and the Asian music industry Create a sincere and full of vitality ** prototype Since their debut in 1997, their method of winning the support of fans is the most direct and laborious way Live singing one by one Shouting hard every time new** 's birth has nearly 100 singing activities close to the fans Little by little, the super popular charm of the power train has been accumulated The power train has started its Asian tour The power train on the world stage is not only the pride of the aborigines, but also the pride of the Taiwanese people At the same time, the power train will also launch the latest**betrayal love song This ** was collected as early as the beginning of the year The production period of up to half a year makes the betrayal love song **full of possibilities on ** It is also the power train since it became famous** One of the richest content** After getting acquainted with the voice of this super-heavy firepower duo, the betrayal love song began to let fans know the more different possibilities of the power train, therefore**Among them, not only does it include a live explosive genre, but also lyrical, blues, lyrical rock, nostalgic dance music and the **nature of heavy metal**, which definitely makes fans breathtaking, and appreciates the most complete** style of the power train.

In the case of diesel locomotive traction, diesel fuel is used to provide energy. There are also electric locomotives that use overhead cables or third rails to provide power to propel electric motors. The traction EMU is a group of 8 carriages, 5 moving and 3 towing.

That is, 5 out of every 8 groups of carriages are powered and 3 are towed.

Except for some ordinary trains that use steam engines and internal combustion engines, other trains use electricity.

Most of the domestic train tracks have high-voltage wires, and they use electric locomotive locomotives. A small number of domestic train tracks without high-voltage wires are diesel locomotive locomotives, and steam locomotives are basically eliminated.

Train, also known as railway train, refers to the vehicle running on the railway track, usually composed of multiple carriages, and is one of the important means of modern transportation for human beings. The most important machine in human history, called the steam locomotive in the early days, had an independent track to travel. Railway trains can be divided into freight cars and passenger cars according to the load, and there are also mixed passenger and freight vehicles together.

Trains are an example of human transportation using fossil fuels. In 1804, the world's first steam locomotive was built by the British mine technician De Ivesk using Watt's steam engine, with a speed of 5 to 6 kilometers per hour. Because coal or firewood was used as fuel, people called it "train", and it has been used to this day.

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Analysis: Most of the power used to guess the corners of trains is electric.

The electric locomotive itself does not have a prime mover, and the wheels of the locomotive are driven by a traction motor by receiving the current sent by the catenary as an energy source. The electric locomotive has the main advantages of high power, high thermal efficiency, fast speed, strong overload capacity and reliable operation, and does not pollute the environment, especially suitable for mountain railways with many busy railway trunk lines and tunnels and large slopes.

The electric locomotive obtains electrical energy from the catenary, and the current supplied to the electric locomotive by the catenary has two types: DC and AC. Due to the different current systems, the electric locomotives used are also different, which can basically be divided into three categories: direct-dc electric locomotives, ac-dc electric locomotives, and ac-dc-alternating current electric locomotives.

The direct DC electric locomotive adopts direct current power supply, and the traction substation is equipped with a rectifier device, which converts the three-phase alternating current into direct current, and then sends it to the catenary. Therefore, the electric locomotive can obtain direct current directly from the catenary to supply the DC series traction motor, which simplifies the equipment on the locomotive. The disadvantage of the DC system is that the voltage of the catenary is low, generally L500V or 3000 V, and the contact wire is required to be very thick, which consumes a lot of non-ferrous metals and increases the construction investment.

There are also many trains powered by diesel engines, and as far as I know, one locomotive uses the Caterpillar 3508B Lootive Engine with a power of 980kW.

Trains are divided into three categories: electric locomotives, diesel locomotives, and steam locomotives.

The original trains were pulled by ropes or horses. By the 19th century, most trains were pulled by steam locomotives. After the 1940s, steam locomotives were gradually replaced by diesel locomotives, which were cleaner and required less labour, and later electric locomotives and EMUs appeared.

The initial investment in electrified railways is significant, but the operating costs are the lowest per mile. Therefore, only high-traffic lines are suitable for electrification. Electrified trains may use overhead cables or third rails for electricity.

The efficiency of the power locomotive is calculated by dividing the unit kilowatt (kW) by the weight metric ton (ton) that can be towed, which is called the traction capacity ratio, and the steam locomotive has the lowest efficiency, followed by the diesel locomotive (the electric transmission is more efficient than the hydraulic transmission), and the electric locomotive or electric combination is relatively more economical. This is because no additional kinetic energy is required to pull the engine that generates power.

The traction kinetic energy ratio from small platoon to large is: (passenger aircraft, motorcycles, general family cars, trucks running on highways, agricultural tractors, trailers,) steam locomotives, diesel hydraulic transmission locomotives, diesel-electric transmission locomotives, electric locomotives, diesel EMUs, high-speed rail EMUs, electric EMUs (passenger ferries, fishing boats, oil tankers).