What to pay attention to when using rectifier transformers?

rectifier transformers are special types of transformers that are designed for rectification systems. Rectification is the process of converting alternating current (AC) into direct current (DC), which is often used in various industrial applications, such as electrolysis, electroplating, electric arc furnaces, and variable frequency drives. rectiformers are combined with diode or thyristor rectifiers to achieve the desired DC output voltage and current.

• What are the uses of rectifier transformers?

• What are the applications of rectifier transformers?

• How to use rectifier transformers properly?

What are the uses of rectifier transformers?

rectifier transformers are used to supply power to rectifiers, which can have different configurations and pulse numbers depending on the load requirements and harmonic mitigation needs. Rectifiers can be classified into two main types: double star (DSS) and double bridge (DB). DSS systems use an interphase transformer and are usually applied as 6or 12-pulse units where high currents are required with very low nominal voltages. DB systems are applied as 6-, 12-, 24-, 48or 60-pulse units, as required to suit the harmonic mitigation and process stability requirements.

What are the applications of rectifier transformers?

rectiformers are widely used in the electrochemical industry, which is the industry with the most applications for rectifiers. For example, rectifier transformers are used for the electrolysis of non-ferrous metal compounds to produce aluminum, magnesium, copper, and other metals; for the electrolysis of table salt to produce chlor-alkali; and for the electrolysis of water to produce hydrogen and oxygen. rectifier transformers are also used in other industries, such as metallurgy, transportation, power generation, and communication.

How to use rectifier transformers properly?

rectifier transformers have some special features and challenges that need to be considered when using them. For instance, rectifier transformers have a large regulating voltage range, from 0 volts up to potentially 2,000 volts (DC), depending on how many pots are connected in series. rectifier transformers also have additional losses due to harmonics of the rectifier transformer, which cannot be ignored. Therefore, the amount of copper and silicon steel sheets used in the manufacture of rectifier transformers with the same power level is much higher than that of power transformers. Moreover, rectifier transformers need commutation impedance calculation to ensure proper operation and protection. Therefore, when using rectifier transformers, it is important to pay attention to the following aspects:

1. Choose the appropriate type and configuration of rectifier transformer according to the load characteristics and requirements.

2. Ensure adequate cooling and ventilation for the rectifier transformer to avoid overheating and insulation damage.

3. Monitor and control the voltage and current levels of the rectifier transformer to avoid overloading and short-circuiting.

4. Install proper filters and reactors to reduce harmonics and improve power quality.

5. Perform regular maintenance and inspection of the rectifier transformer to detect and prevent faults.

rectifier transformers are essential devices for many industrial applications that require DC power supply. By understanding their uses, applications, and proper usage methods, users can benefit from their advantages and avoid potential problems.