What is the difference between high speed rail and EMU, ask for answers

Strictly speaking, the EMU is a type of train, and the high-speed rail is a type of railway line.

EMU refers to the type of train. It is a unique name in China, which is different from the previous ordinary trains. Under normal circumstances, ordinary trains are pulled by locomotives, and the carriages themselves are not powered; The EMU car itself has power, and when it runs, not only the locomotive drives, but also the car "runs on its own", so that the power can be dispersed and the running speed will be faster.

At the same time, compared with ordinary trains, the vibration and noise of EMUs are on the low side. Therefore, the bullet train is a train type that is different from ordinary trains.

At present, in China, there are different models of bullet trains, such as CRH1, CRH2, CRH3, CHR5, CRH6, CRH380 (there is no CRH4, because "4" is a homonym for "death", which is considered unlucky; There are small divisions under each model, such as CRH1A, CRH1B, etc.; CRH6 has not yet been officially put into operation), the Chinese name is Harmony, and the English name is CRH, which is the abbreviation of "China Railways Highspeed". In fact, whether it is on China's "high-speed rail line" or on the so-called "bullet train line", the cars run are all EMUs, the difference is that the models are different: CRH1, CRH2 (except CRH2C), CHR5 The three models are all 200 km level, designed to operate at 200km h, and the maximum operating speed is 250km h; CRH2C, CRH3 and CRH380 are 300 km and are designed to operate at a speed of about 350 km h and a maximum of 380 km h.

There is no difference, the speed is about the same, but the price difference is very large.

Different names, different trains, different speeds, different rails, different driving requirements, different moving-tow ratios, etc. The name is different: the full name of high-speed rail is high-speed EMU travel train, and the full name of EMU is EMU travel train.

The number of trains is different: the high-speed rail is the number of trains starting with g, and g is the pinyin prefix with the high height of the Chinese character. The bullet train is a train number that starts with d, and d is the pinyin prefix of the Chinese character.

The difference between high-speed rail and bullet trains: different names, different train numbers, different speeds, different rails, different driving requirements, different moving-tow ratios, etc.

1. The name is different: the full name of high-speed rail is high-speed EMU travel train, and the full name of EMU is EMU travel train.

2. The number of trains is different: the high-speed rail is the train number starting with G, and the group Shenxiao G is the pinyin prefix with the high Chinese character. The bullet train is a train that starts with d, and d is the spelled phonetic prefix of the Chinese character.

3. Different speeds: the speed of high-speed rail is more than 300 kilometers per hour, while the speed of bullet trains is more than 200 kilometers per hour.

4. Different rails: The rails used by high-speed rail are special rails, which is why they are called high-speed rails. The rails used by the bullet train can be either special rails for high-speed rail or ordinary rails that have been modified, with specific compatibility.

5. Different driving requirements: high-speed rail can be called a special line, so there are very few platforms set up on the whole line. There are more platforms set up on the whole line of the bullet train, and the main ones are intercity lines.

6. The dynamic towing ratio is different: high-speed rail belongs to a strong dynamic dispersion system, and the dynamic towing ratio (EMU trailer) is less than 1 to 1 and greater than 1 to 3. The EMU belongs to the weak power dispersion system, and the dynamic drag ratio is generally 1 to 5 and 1 to 6.