Publish Time: 2023-08-17 Origin: Site
rectifier transformers are special types of transformers that are designed for rectification systems. Rectification systems are systems that convert alternating current (AC) to direct current (DC), which is often required for various industrial applications, such as aluminum electrolysis, electric arc furnaces, traction substations, and high-voltage direct current (HVDC) transmission systems. In this article, we will explain what rectiformers are, what types of rectifier transformers exist, and what characteristics of rectifier transformers are.
What is rectifier transformer?
What are the types of rectifier transformer?
What are the characteristics of rectifier transformer?
A rectifier transformer is a transformer that provides a stable and adjustable output voltage for the rectifier devices, such as diodes or thyristors, that perform the actual conversion of AC to DC. A rectifier transformer is also a transformer that matches the phase shift and pulse number of the rectifier system, which can reduce the harmonic distortion and improve the power quality and reliability of the system.
A rectifier transformer works according to the principle of electromagnetic induction, which is the same as that of an ordinary transformer. However, a rectifier transformer has to withstand high currents and harmonics that are generated by the rectifier devices. Therefore, a rectifier transformer has to be specially designed and constructed to meet the requirements and challenges of the rectification system.
1. Double star (DSS): DSS systems use an interphase transformer and are mainly applied as 6or 12-pulse units where high currents are required with very low nominal voltages. DSS systems have a simple structure and a low cost, but they also have a high harmonic content and a low power factor.
2. Double bridge (DB): DB systems are applied as 6-, 12-, 24-, 48or 60-pulse systems, as required to suit the harmonic mitigation and process stability requirements. DB systems have a complex structure and a high cost, but they also have a low harmonic content and a high power factor.
3. Rectiformers: Rectiformers are combined regulating and rectifier transformer units that are used for primary aluminum production (smelters). Rectiformers can achieve a very large regulating voltage range, from 0 Volts up to potentially 2,000 Volts (DC), depending on how many pots are connected in series. Rectiformers have a high efficiency and a high reliability, but they also have a large size and weight.
1. High power and high efficiency: rectifier transformers can provide high power and high efficiency for the rectification system, which can reduce the energy consumption and operating costs.
2. High current and low voltage: rectifier transformers can provide high currents and low voltages for the rectification system, which can meet the demands of various industrial applications.
3. Adjustable output voltage: rectifier transformers can provide adjustable output voltage for the rectification system, which can optimize the performance and functionality of the system.
4. Phase shift and pulse number matching: rectifier transformers can match the phase shift and pulse number of the rectification system, which can reduce the harmonic distortion and improve the power quality and reliability of the system.
rectiformers are essential components of many industrial applications that require DC power supply. They have many uses, types, and characteristics that make them technically advanced and valuable. However, they also require proper installation, maintenance, protection, monitoring, optimization, and improvement to ensure their long service life and performance.