Three-phase magnetism-dividing voltage regulating transformer and magnetism-dividing voltage regulating method thereof
A transformer and magnetic modulation technology, applied in the direction of transformers, transformers/inductor coils/windings/connections, variable transformers, etc., can solve the problem of not being able to adjust the voltage in real time, not meeting the user's voltage stability requirements, and not being able to adjust the voltage And other issues
Inactive Publication Date: 2012-12-05
沈广贤
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Problems solved by technology
However, the distribution transformers currently used in large quantities cannot adjust the voltage in real time, and can only be manually operated to adjust the tap changer seasonally and in a power failure state to achieve the purpose of voltage adjustment, that is, the existing distribution transformers cannot be adjusted in real time according to the grid voltage change. Adjusting the voltage size cannot meet the requirements of user terminal voltage stability
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[0035] according to figure 1 Shown is an ordinary single-phase transformer, the main magnetic flux closed core 1 is a square frame closed core, mainly composed of the main magnetic flux closed core frame 1, the primary coil 2, and the secondary coil 3, and its main magnetic flux closed core Both sides of the frame are magnetic columns, one side is provided with a primary coil 2 and the other side is provided with a secondary coil 3 . The present invention connects one or more magnetic valves in parallel on the basis of an ordinary single-phase transformer. The magnetic valve is provided with a magnetic valve closing iron core frame 4, and the opposite sides of the magnetic valve closing iron core frame 4 are magnetic pillars, and the magnetic pillars on both sides are respectively There are one or more pairs of coils with the same number of turns, and each pair of coils is separately arranged on the magnetic columns on both sides. One end of each pair of coils is directly conn...
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The invention discloses a three-phase magnetism-dividing voltage regulating transformer and a magnetism-dividing voltage regulating method thereof. The three-phase magnetism-dividing voltage regulating transformer mainly comprises three groups of main magnetic flux closed iron core frames (1), a primary coil (2) and a secondary coil (3), and is connected in parallel with one or more magnetic valves; magnetic columns on two opposite sides of a magnetic valve closed iron core frame (4) of each magnetic valve are provided with one or more pairs of coils of the windings with the same turn number respectively; one tip of each pair of coils is connected directly, and the other tip of each pair of coils is connected in series with a power supply; and a connecting iron core (5) is arranged between the main magnetic flux closed iron core frame (1) and the magnetic valve closed iron core frame (4). The magnetism-dividing voltage regulating method comprises the following steps of: partitioning an entire magnetic circuit into a primary magnetic circuit and a secondary magnetic circuit by using the main magnetic flux closed iron core frame (1) according to the primary coil (2) and the secondary coil (3), and connecting one or more magnetic valves in parallel to form one or more magnetism-dividing magnetic circuits; and changing the magnetic flux passing through a secondary winding loop by controlling the saturation degree of each magnetic valve through the magnetism-dividing magnetic circuits, regulating the magnitude of a secondary output voltage, and outputting a constant voltage. The voltage stabilizing requirement of a user can be met.
Description
technical field [0001] The invention relates to a three-phase magnetism-splitting voltage-regulating transformer and a method for adjusting voltage by magnetism-splitting of the transformer. Background technique [0002] The traditional transformer is an iron core frame, wound with primary and secondary coils. The relationship between the primary and secondary voltage and the number of turns of the primary and secondary coils is as follows: In a practical transformer, the number of turns of the primary and secondary coils is fixed, that is, This formula shows that the secondary voltage of the distribution transformer changes with the primary voltage of the grid, and the relationship is almost linear. Once the power grid changes due to the load, the voltage of the power grid will fluctuate, and the voltage value supplied to the user end deviates from the national standard limit value, and the electrical equipment at the user end cannot work near its rated voltage. When t...
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Patent Timeline
Login to View More IPC IPC(8): H01F29/00H01F27/40H01F27/30H02P13/00
Inventor沈广贤
Owner沈广贤