CN217282369U - System for automatically controlling on-load voltage regulation of transformer - Google Patents
System for automatically controlling on-load voltage regulation of transformer Download PDFInfo
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- CN217282369U CN217282369U CN202123334961.0U CN202123334961U CN217282369U CN 217282369 U CN217282369 U CN 217282369U CN 202123334961 U CN202123334961 U CN 202123334961U CN 217282369 U CN217282369 U CN 217282369U
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Abstract
The utility model relates to a system for automatic control transformer on-load voltage regulation, including transformer measurement and control device, transformer automatic voltage regulation device, transformer and generating line, be equipped with transformer gear adjusting device on the transformer, the generating line is connected with transformer measurement and control device, and transformer measurement and control device, transformer automatic voltage regulation device, transformer gear adjusting device are series connection in proper order. Compared with the prior art, the utility model discloses reform transform original transformer on-load voltage regulation system, through increasing transformer automatic voltage regulation device to change the line and connect, can realize the automatic control of transformer on-load voltage regulation, improve the electric energy quality of production power supply.
Description
Technical Field
The utility model belongs to the technical field of the transformer voltage regulation, a system for automatically controlling transformer on-load voltage regulation is related to.
Background
At present, the transformer substation carries out on-load voltage regulation through a tap switch of a main transformer. The tap changer changes the number of turns of a high-voltage side coil, the step length is generally 2.5%, the voltage of a low-voltage side is stabilized within a certain range, the fluctuation of the incoming line voltage is adapted, and the stability of the load voltage is ensured.
In some 110kV transformer substations, a manual voltage regulation mode is adopted, in order to ensure that the production power supply voltage is stabilized within a qualified range, a person on duty of the transformer substation needs to keep on duty for 24 hours, stare at 10kV bus voltage and correspondingly adjust a tap switch of the transformer to be in a proper gear. This pressure regulating mode has consumed a large amount of manpowers, but still can not guarantee the promptness of pressure regulating, causes the electric energy quality of workshop production power consumption to descend to a certain extent.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an automatic control transformer on-load voltage regulation's system can realize the automated control of transformer on-load voltage regulation.
The purpose of the utility model can be realized through the following technical scheme:
the system comprises a transformer measurement and control device, a transformer automatic voltage regulation device, a transformer and a bus, wherein the transformer is provided with a transformer gear regulation device, the bus is connected with the transformer measurement and control device, and the transformer measurement and control device, the transformer automatic voltage regulation device and the transformer gear regulation device are sequentially connected in series.
Furthermore, a first switching value signal transmission line is arranged between the automatic voltage regulating device of the transformer and the gear regulating device of the transformer.
Furthermore, a BCD code converter is arranged on the first switching value signal transmission line.
Further, the system also comprises a main transformer protection device, and the main transformer protection device is connected with the automatic voltage regulation device of the transformer.
Further, a bus voltage alternating current sampling circuit is arranged between the automatic voltage regulating device of the transformer and the bus.
Furthermore, a second switching value signal transmission line is arranged between the automatic voltage regulating device of the transformer and the measurement and control device of the transformer.
Furthermore, an alarm circuit is arranged between the automatic voltage regulating device of the transformer and the measurement and control device of the transformer.
Furthermore, the system also comprises a background display, and the background display is connected with the transformer measurement and control device.
A method for automatically controlling on-load voltage regulation of a transformer is based on the system, and the method comprises the following steps: the automatic voltage regulating device of the transformer automatically sends out an instruction to the gear adjusting device of the transformer according to the voltage of the bus and a preset setting value, and the gear adjusting device of the transformer executes the instruction to adjust the gear of the transformer.
Further, the commands comprise upshifting, downshifting and stopping.
Compared with the prior art, the utility model discloses reform transform original transformer on-load voltage regulation system, through increasing transformer automatic voltage regulation device to change the line and connect, can realize the automatic control of transformer on-load voltage regulation, improve the electric energy quality of production power supply.
Drawings
Fig. 1 is a schematic structural view of the present invention;
the notation in the figure is:
the system comprises a transformer measuring and controlling device 1, a main transformer protecting device 2, a BCD (binary coded decimal) code converter 3, a transformer gear adjusting device 4, a transformer 5, a transformer 6, a transformer automatic voltage regulating device 7, a bus 8, a first switching value signal transmission line 9, a bus voltage alternating current sampling line 10, a second switching value signal transmission line 11 and an alarm line.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
The embodiment is as follows:
as shown in fig. 1, the system for automatically controlling on-load voltage regulation of a transformer comprises a transformer measurement and control device 1, an automatic voltage regulation device 6 of the transformer, a transformer 5 and a bus 7, wherein the transformer 5 is provided with a gear regulation device 4 of the transformer, the bus 7 is connected with the transformer measurement and control device 1, and the transformer measurement and control device 1, the automatic voltage regulation device 6 of the transformer and the gear regulation device 4 of the transformer are sequentially connected in series.
A first switching value signal transmission line 8 is arranged between the automatic transformer voltage regulating device 6 and the gear regulating device 4. The BCD transcoder 3 is provided on the first switching value signal transmission line 8.
And a bus voltage alternating current sampling line 9 is arranged between the automatic voltage regulating device 6 of the transformer and the bus 7.
And a second switching value signal transmission line 10 is arranged between the automatic voltage regulating device 6 of the transformer and the measurement and control device 1 of the transformer. An alarm circuit 11 is arranged between the automatic voltage regulating device 6 of the transformer and the measuring and controlling device 1 of the transformer.
The system further comprises a main transformer protection device 2, and the main transformer protection device 2 is connected with an automatic voltage regulating device 6 of the transformer. The system also comprises a background display, and the background display is connected with the transformer measurement and control device 1.
The original voltage regulation mode is as follows: the gear of the transformer 5 is changed through the transformer gear adjusting device 4, the gear transmits the switching value to the transformer measurement and control device 1 through the BCD code converter 3, and the transformer measurement and control device 1 can know the gear of the transformer 5 and upload the gear to the background. The operator on duty issues an operation instruction (ascending/descending/stopping) to the transformer gear adjusting device 4 through the transformer measurement and control device 1, so that the operator can do corresponding action to change the position of the tap switch of the transformer 5. When the main transformer protection device 2 is overloaded or the backup protection action locks the on-load voltage regulation signal as a switching value to the transformer measurement and control device 1, the on-load voltage regulation action is locked.
This embodiment increases transformer automatic voltage regulation device 6 to change the gear switching value and the control of going up and down to stop of transformer gear adjusting device 4 to transformer automatic voltage regulation device 6, the 2 shutting switching values of main protection device that become also change to transformer automatic voltage regulation device 6, transformer automatic voltage regulation device 6 introduces the bus voltage and exchanges the sampling, and transformer automatic voltage regulation device 6 output gear BCD sign indicating number and alarm signal to transformer measurement and control device 1.
During operation, the automatic transformer voltage regulating device 6 obtains the gear of the transformer 5 through BCD coding, the 'ascending/descending/stopping' instruction is automatically sent to the automatic transformer gear regulating device 4 according to the preset setting value if no locking signal of the main transformer protection device 2 exists through sampling of the voltage of the 10kV bus 7, the automatic transformer gear regulating device 4 executes the instruction to change the gear of the transformer 5, the gear switching value is fed back to the automatic transformer voltage regulating device 6 and then forwarded to the automatic transformer measurement and control device 1, and the digital transformer measurement and control device 1 displays the gear on a background display. If the automatic voltage regulating device 6 of the transformer fails, a failure signal is sent to alarm and prompt an operator on duty.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (8)
1. The utility model provides a system for automatic control transformer on-load voltage regulation, its characterized in that, this system include transformer measurement and control device (1), transformer automatic voltage regulation device (6), transformer (5) and generating line (7), transformer (5) on be equipped with transformer gear adjusting device (4), generating line (7) be connected with transformer measurement and control device (1), transformer automatic voltage regulation device (6), transformer gear adjusting device (4) series connection in proper order.
2. The system for automatically controlling on-load tap changing of a transformer according to claim 1, characterized in that a first switching value signal transmission line (8) is arranged between the automatic voltage regulating device (6) of the transformer and the gear position regulating device (4) of the transformer.
3. The system for automatically controlling on-load tap changing of a transformer according to claim 2, characterized in that said first switching value signal transmission line (8) is provided with a BCD transcoder (3).
4. An automatic on-load tap changing system for controlling transformers according to claim 1, characterized in that the system further comprises a main transformer protection device (2), the main transformer protection device (2) is connected with the automatic tap changing device (6) of the transformer.
5. The system for automatically controlling on-load tap changing of the transformer according to claim 1, characterized in that a bus voltage AC sampling line (9) is arranged between the automatic voltage regulating device (6) of the transformer and the bus (7).
6. The system for automatically controlling on-load voltage regulation of the transformer according to claim 1, wherein a second switching value signal transmission line (10) is arranged between the automatic voltage regulation device (6) of the transformer and the measurement and control device (1) of the transformer.
7. The system for automatically controlling on-load voltage regulation of the transformer according to claim 1, characterized in that an alarm line (11) is arranged between the automatic voltage regulation device (6) of the transformer and the measurement and control device (1) of the transformer.
8. The system for automatically controlling on-load voltage regulation of the transformer according to claim 1, characterized by further comprising a background display, wherein the background display is connected with the transformer measurement and control device (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123334961.0U CN217282369U (en) | 2021-12-28 | 2021-12-28 | System for automatically controlling on-load voltage regulation of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123334961.0U CN217282369U (en) | 2021-12-28 | 2021-12-28 | System for automatically controlling on-load voltage regulation of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217282369U true CN217282369U (en) | 2022-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123334961.0U Active CN217282369U (en) | 2021-12-28 | 2021-12-28 | System for automatically controlling on-load voltage regulation of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217282369U (en) |
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2021
- 2021-12-28 CN CN202123334961.0U patent/CN217282369U/en active Active
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