The high-speed rail reaches a speed of 350 kilometers per hour. How to supply power while driving? What happens if the high-speed rail is suddenly cut off during operation?
In order to promote the construction of domestic transportation infrastructure, Chinese engineers have built a high-speed rail system with the longest operating mileage in the world, with a total mileage of 40,000 kilometers. Due to the advanced technology, China's high-speed rail operates at a speed of up to 350 kilometers per hour, so many People may have a question: how should it be powered during operation? Is it to carry a battery for power supply?
The picture is the high-speed rail
In fact, it is provided by a special power supply network. The Chinese approach is admired by foreigners. So how much power is consumed per hour? The answer is 9600 degrees per hour, which is equivalent to consuming the electricity used by a family for four or five years. The role of the power supply network cannot be underestimated. type of transportation infrastructure.
The picture is the high-speed rail
The electricity used by the high-speed rail is not carried by the high-speed rail itself. When we take the high-speed rail, we will all see that there is a power supply receiver on the top of the high-speed rail car. There are many dense routes on the high-speed rail, that is, the high-speed rail receives electricity. The bow rubs against the wire to supply power to the high-speed train. The pantograph is an electrical device that obtains electrical energy from the catenary of the electric traction locomotive. It is installed on the roof of the locomotive or motor train. Once the wire is not touched, the entire high-speed rail will be powered off, and it may also be brought It is a safety hazard, so why does the wire and the pantograph often contact and rub against each other and not break?
The picture shows the high-speed rail
The material of this kind of wire is very wear-resistant, and the friction time with the wire is not long. Although the pantograph is rubbing at any time, in order to avoid loss, the part where the pantograph and the contact net are in contact with each other (skateboard) must be Made of high hardness wear-resistant and conductive material. So the material of this wire is very durable.
The picture is the high-speed rail
The pantograph is worn all the time. When the pantograph rubs the wire, it is parallel to the direction in which the wire extends. However, the wire will become thinner and thinner, but it will not break suddenly. Therefore, in combination with wear-resistant materials , a single wire can also be used for a long time.
The picture is the high-speed rail
The friction of each wire is very short, and the pantograph is always rubbing. To protect the pantograph, the first is the material problem. The high-speed rail pantograph is made of a smooth and wear-resistant graphite plate. Considering the graphite It has good electrical conductivity and good lubrication performance, and each graphite plate will have a certain thickness, so as to ensure that the pantograph will last longer, but it will also be regularly checked and replaced.
For better uniform friction, the wire is not straight and parallel to the railway, because it prevents the situation that one side has been ground and other parts have not been ground during the friction process, so the high-speed rail wire and pantograph are not as we imagined. so simple.
The picture shows the high-speed rail
In order to operate more safely, high-speed trains will not have trains in the early morning, because they will have professionals to overhaul them during this time. After the completion, there will be professionals to overhaul, and the first high-speed rail every day does not carry passengers. The purpose is to detect whether the high-speed rail and railway are faulty. Once a problem is found, it will be dealt with in time to ensure travel safety.