| Rectifier transformer is the most widely used kind in AC transformers, the DC power supply used in industries |
| mostly comes from the power grid through the rectifier equipment combined by rectifier transformer and rectifier. |
| In highly modernized today, we can see its great use directly or indirectly in almost every area. The main purpose |
| of the rectifier transformer is as follows: |
| 1. Electrochemical industry |
| Electrochemical industry use rectifier transformer for the most. Electrolyze nonferrous metal compounds to |
| make aluminum,magnesium, copper and other metals; electrolyze salt to make chlorine alkali, electrolyze water to |
| obtain hydrogen and oxygen, Rectification of such devices have the following characteristics: |
| 1) Voltage of side of the valve is not larger than 1000V, the current can be as high as about 100KA, single |
| unit capacity can be from tens to tens of thousands KVA; |
| 2) Electrolysis load is continuous all day long; |
| 3) Voltage of side of the valve regulated frequently. |
| 2. DC power for traction |
| (1) Used for mine or the city's DC power grid, this type of rectifier transformer is basic same with power |
| transformer in structure, which usually adopts non-excitation regulator, the voltage regulation by 5%, in order to |
| comply with the exchange of voltage fluctuations. |
| (2) Used for the electrified power tram, usually the side net voltage of the rectifier voltage transformer is |
| line voltage of single-phase transmission line. |
| The single-phase rectifier transformers have three characteristics as follow: |
| 1) As needs of speed regulation performance, the voltage regulation amplitude is large and frequently, |
| therefore the regulator shall be sensitive, some use controllable silicon to regulate voltage. |
| 2) There are more than secondary windings to supply the motor armature, magnetization and other applications |
| respectively. |
| 3) The outline dimension shall be suitable to load on the power tramp. |
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