It’s unusual! The function truth of R type transformer in railway tunnel!
As an important travel equipment for our daily traffic, the safety and stability of railway is extremely important. High-speed railway has the characteristics of fast running speed, high traffic density, dense load distribution, high degree of automation, safety and on-time operation. Railway tunnel also has very strict requirements for the reliability of power supply system. The main function of R-type transformer in railway tunnel power supply system is to ensure the normal operation of traction power supply system. Differential protection is also a very important protection in transformer protection. What is the daily working principle of R-type transformer in railway tunnel? Let’s take a look!
In general, the railway power supply system assumes the power supply task of all railway facilities except the train traction power supply system, and the substation system in the tunnel is usually set up in the tunnel on both sides of the tunnel. Generally speaking, due to the limitations of space and cable channels, the transformer system in the tunnel is set on both sides of the tunnel, usually single-phase transformers operate independently, which also leads to only one low-voltage control power supply for single-phase transformer remote control. Therefore, the power supply at one end or the power supply at both ends and the segmented power supply should be compared according to the tunnel length, load capacity and power supply situation, and the final selection is determined.
The operation of type R transformer in the railway tunnel power supply system is to control the power transmission effect of the railway system to be more stable, but also to change the voltage appropriately in the process of power transmission and conversion, to ensure the rationality and applicability of the voltage, and to avoid voltage instability in the transmission process. As the core equipment structure of electric railway operation system, R-type transformer has obvious function guarantee. In order to ensure the operation efficiency of power supply traction transformer, the overall connection operation effect is more high-quality, stable and reliable by optimizing its connection mode. It can also improve the stability and efficiency of the power supply system.