Application Example of Stepped Voltage Regulator in Railway Power Supply System

Application Example of Stepped Voltage Regulator in Railway Power Supply System

1、 Application background

The railway power supply system often encounters the problem of low terminal voltage due to its long line and large power supply radius. To address this issue, a stepper voltage regulator has been introduced into the railway power supply system to achieve precise voltage adjustment and control.

2、 Structure and Function of Stepped Voltage Regulator

The stepper voltage regulator mainly consists of a three-phase autotransformer, a three-phase on load tap changer, and an automatic controller. This regulator adopts an autotransformer structure and can achieve on load automatic voltage regulation within a range of ± 20%. In addition, it also has excellent control performance and communication functions, realizing the "four remote" functions of telemetry, remote signaling, remote adjustment, and remote control, providing convenience for remote monitoring and management.

3、 Application examples and effects

1. High voltage regulation accuracy: The application of stepper voltage regulators in railway power supply systems has achieved precise voltage adjustment. The precise control of three-phase autotransformers and three-phase on load tap changers through automatic controllers can ensure that the power supply system can provide stable voltage output under different loads and operating conditions.

2. Energy saving and consumption reducing: Due to the fully sealed design and unique anti-interference measures adopted by the stepper voltage regulator, not only does it reduce the degradation rate of oil and maintenance costs, but it also achieves significant energy saving and consumption reducing effects. This is undoubtedly an important advantage for the railway power supply system.

3. Improving power supply reliability: By introducing a stepper voltage regulator, the reliability of the railway power supply system has been significantly improved. The automatic voltage regulation function of the regulator can quickly respond to voltage fluctuations in the power grid, ensuring the stable operation of the power supply system.

4、 Conclusion and Prospect

The application example of stepper voltage regulator in railway power supply system shows that this equipment has significant advantages in improving power supply quality, energy saving and consumption reduction, and enhancing power supply reliability. With the continuous development of railway power supply systems, stepper voltage regulators are expected to play a greater role in the future, providing strong guarantees for the safe and efficient operation of railway transportation.