CN210517796U - On-load voltage regulation device - Google Patents
On-load voltage regulation device Download PDFInfo
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- CN210517796U CN210517796U CN201921781572.2U CN201921781572U CN210517796U CN 210517796 U CN210517796 U CN 210517796U CN 201921781572 U CN201921781572 U CN 201921781572U CN 210517796 U CN210517796 U CN 210517796U
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Abstract
The utility model relates to an on-load voltage regulation device. The device includes: the terminal voltage monitoring device comprises a wireless communication module, a first processor and a voltage acquisition circuit; the voltage acquisition circuit is used for acquiring voltage data of the inlet wire side of the metering gauge, the first processor is used for processing the voltage data acquired by the voltage acquisition circuit, and the wireless communication module is used for sending the first voltage to the voltage regulation control device. The voltage signal acquired by the voltage acquisition circuit is sent to the voltage regulation control device through the wireless communication module, so that long-distance stable transmission of the signal is realized, a lead is not needed in the transmission of the signal, the expansibility is high, and the terminal voltage monitoring device can be installed on a line in a charged mode without power failure. This on-load voltage regulation device possesses the function of automatically regulated voltage, need not the manual work and has had a power failure voltage regulation, has reduced the input and the power failure frequency of cost of labor.
Description
Technical Field
The application relates to the technical field of power distribution networks, in particular to an on-load voltage regulation device.
Background
Distribution transformers used in distribution networks in China mainly comprise non-excitation oil immersed transformers and dry-type transformers, seasonal load changes are large in rural power networks, single-phase loads are obvious, three-phase loads are unbalanced, and the phenomena of low voltage at the tail end of a line are serious. The non-excitation distribution transformer needs to be manually adjusted in voltage under the condition of planned power failure, and line voltage is overhigh when the transformer is lightly loaded. Therefore, it is very important to improve the voltage quality and the power supply reliability by using the on-load tap changing distribution transformer. However, if the off-load distribution transformers in the distribution network are all replaced by on-load tap changers, the investment is wasted.
The project simultaneously adopts a high-universality transformation method to upgrade the off-circuit immersed distribution transformer into an on-load voltage regulating transformer, and the current voltage regulating logic regulates the voltage according to the voltage conditions of the head and tail sections of the transformer area, but the technology has the problems of tail-end data acquisition process, unstable long-distance transmission signals between a master device and a slave device, difficult installation of the acquisition devices, low expansibility and the like.
In the implementation process, the utility model discloses the people finds that there is following problem at least in the conventional art: the traditional on-load tap changer regulates voltage according to the voltage condition of the head end and the tail end of a transformer area, the signal stability is poor when a master device and a slave device transmit for a long distance in the process of acquiring data at the tail end, the acquisition devices have the problems of difficult installation, low expansibility and the like, and the traditional on-load tap changer needs to be redesigned and produced.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide a new on-load voltage regulation device.
An on-load tap changing apparatus comprising:
the on-load voltage regulation switch device is used for connecting the overhead line and the high-voltage side of the transformer;
the voltage regulation control device is used for connecting the low-voltage side of the transformer with the on-load voltage regulation switch device;
the terminal voltage monitoring device is used for connecting the wire inlet side of the meter with the voltage regulation control device;
the tail end voltage monitoring device is used for acquiring a first voltage at the wire inlet side of the meter and sending the first voltage to the voltage regulating control device; the voltage regulation control device is used for acquiring a second voltage on the low-voltage side of the transformer, comparing the second voltage and the first voltage with a preset threshold respectively, and sending a voltage regulation control instruction to the on-load voltage regulation switch device when the second voltage is greater than the maximum value of the preset threshold or the first voltage is less than the minimum value of the preset threshold; the on-load voltage regulation switch device regulates the voltage of the high-voltage side of the transformer according to the voltage regulation control instruction;
the terminal voltage monitoring device comprises a wireless communication module, a first processor and a voltage acquisition circuit, wherein the voltage acquisition circuit is used for connecting the wire inlet side of the meter; the wireless communication module is respectively connected with the voltage regulation control device and the first processor; the first processor is connected with the voltage acquisition circuit; the voltage acquisition circuit is used for gathering the voltage data of the inlet wire side of strapping table meter, first treater is used for handling the voltage data that voltage acquisition circuit gathered, wireless communication module be used for with first voltage sends for pressure regulating controlling means.
In one embodiment, the on-load tap changer comprises a high voltage bushing, an on-load tap changer and a butt terminal; the high-voltage bushing is used for connecting an overhead line and the input end of the on-load tap changer; the control end of the on-load voltage regulating switch is connected with the voltage regulating control device and used for receiving the voltage regulating control instruction; one end of the butt-joint terminal is connected with the high-voltage side of the transformer, and the other end of the butt-joint terminal is connected with the output end of the on-load tap changer.
In one embodiment, the on-load tap changer further comprises an aviation plug, and the aviation plug is used for connecting the control end of the on-load tap changer and the voltage regulation control device.
In one embodiment, the on-load tap changer is a vacuum permanent magnet tap changer.
In one embodiment, the voltage regulation control device comprises a data acquisition circuit, a communication module and a second processor; the data acquisition circuit respectively with the low pressure side of transformer with the second treater is connected, the data acquisition circuit is used for gathering the voltage data of the low pressure side of transformer will the voltage data of the low pressure side of transformer sends for the second treater is handled, the second treater is used for setting up and predetermines the threshold value and compare the judgement to on-load tap changer sends the voltage regulation control instruction, the second treater respectively with on-load tap changer with communication module connects, communication module with wireless communication module connects.
In one embodiment, the voltage regulation control device further comprises a signal output circuit, the signal output circuit is used for connecting the on-load tap changer and the second processor, and the signal output circuit is used for sending a voltage regulation control instruction to the on-load tap changer.
In one embodiment, the voltage regulation control device further comprises a power supply circuit, the power supply circuit is connected with the second processor, and the power supply circuit is used for supplying working power to the second processor.
In one embodiment, the transformer is a 10 kv transformer, and the wireless communication module is a 4G communication module.
Above-mentioned on-load voltage regulation device includes: the on-load voltage regulation switch device is used for connecting the overhead line and the high-voltage side of the transformer; the voltage regulation control device is used for connecting the low-voltage side of the transformer with the on-load voltage regulation switch device; the terminal voltage monitoring device is used for connecting the wire inlet side of the meter with the voltage regulation control device; the tail end voltage monitoring device is used for acquiring a first voltage at the wire inlet side of the meter and sending the first voltage to the voltage regulating control device; the voltage regulation control device is used for acquiring a second voltage on the low-voltage side of the transformer, comparing the second voltage and the first voltage with a preset threshold respectively, and sending a voltage regulation control instruction to the on-load voltage regulation switch device when the second voltage is greater than the maximum value of the preset threshold or the first voltage is less than the minimum value of the preset threshold; the on-load voltage regulation switch device regulates the voltage of the high-voltage side of the transformer according to the voltage regulation control instruction; the terminal voltage monitoring device comprises a wireless communication module, a first processor and a voltage acquisition circuit, wherein the voltage acquisition circuit is used for connecting the wire inlet side of the meter; the wireless communication module is respectively connected with the voltage regulation control device and the first processor; the first processor is connected with the voltage acquisition circuit. The voltage signal acquired by the voltage acquisition circuit is sent to the voltage regulation control device through the wireless communication module, so that long-distance stable transmission of the signal is realized, a lead is not needed in the transmission of the signal, the expansibility is high, and the terminal voltage monitoring device can be installed on a line in a charged manner without power failure. The on-load voltage regulation device has the function of automatically regulating voltage, power failure voltage regulation is not required to be carried out manually, and the input of labor cost and the frequency of power failure are reduced.
Drawings
Fig. 1 is a schematic structural diagram of an on-load voltage regulation device in a first embodiment;
fig. 2 is a schematic structural diagram of an on-load voltage regulation device in a second embodiment;
fig. 3 is a schematic structural diagram of an on-load voltage regulation device in a third embodiment;
fig. 4 is a schematic structural diagram of an on-load voltage regulation device in a fourth embodiment.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In one embodiment, as shown in fig. 1, there is provided an on-load tap changer comprising:
an on-load tap changer 110, the on-load tap changer 110 being configured to connect the overhead line 102 to the high voltage side of the transformer 104;
a voltage regulation control device 120, the voltage regulation control device 120 being configured to connect the low voltage side of the transformer 104 to the on-load tap changer 110;
a terminal voltage monitoring device 130, wherein the terminal voltage monitoring device 130 is used for connecting the wire inlet side of the meter 106 with the voltage regulation control device 120;
the terminal voltage monitoring device 130 is configured to collect a first voltage at the incoming line side of the meter 106, and send the first voltage to the voltage regulation control device 120; the voltage regulation control device 120 is configured to collect a second voltage at the low-voltage side of the transformer 104, compare the second voltage and the first voltage with a preset threshold, and send a voltage regulation control instruction to the on-load tap changer 110 when the second voltage is greater than a maximum value of the preset threshold or the first voltage is less than a minimum value of the preset threshold; the on-load tap changer 110 regulates the high-side voltage of the transformer 104 according to the tap control instruction;
the terminal voltage monitoring device 130 includes a wireless communication module 132, a first processor 134, and a voltage acquisition circuit 136 for connecting to the incoming line side of the meter 106; the wireless communication module 132 is respectively connected with the voltage regulation control device 120 and the first processor 134; the first processor 134 is connected to the voltage acquisition circuit 136; the voltage acquisition circuit 136 is used for acquiring voltage data of the inlet side of the meter 106, the first processor 134 is used for processing the voltage data acquired by the voltage acquisition circuit 136, and the wireless communication module 132 is used for sending the first voltage to the voltage regulation control device 120.
The meter can be a watt-hour meter which is a meter used for measuring the total amount of electric energy flowing in a line within a certain time interval; the meter can be connected to the inlet end of the electric equipment and is used for metering the electricity consumption of the electric equipment.
As shown in fig. 2, in one embodiment, the on-load tap changer 110 includes a high voltage bushing 112, an on-load tap changer 114, and a docking terminal 116; a high voltage bushing 112 is used to connect the overhead line 102 to the input of the on-load tap changer 114; the control end of the on-load tap changer 114 is connected with the voltage regulation control device 120 and is used for receiving the voltage regulation control instruction; one end of the mating terminal 116 is connected to the high-voltage side of the transformer 104, and the other end of the mating terminal 116 is connected to the output terminal of the on-load tap changer 114. The on-load tap changer 114 can be used to switch taps in the transformer winding without interrupting the load current, so as to change the number of turns of the winding, i.e., the voltage ratio of the transformer, and finally achieve the purpose of voltage regulation. In one embodiment, the on-load tap changer 114 is a vacuum permanent magnet tap changer. High voltage bushing 112 refers to a device for insulating and supporting one or more conductors passing through a partition, such as a wall or box. The docking terminal 116 may be a terminal that may be used to connect a coil tap on the high side of the transformer.
In one embodiment, the on-load tap changer 110 further includes an aircraft plug 118, and the aircraft plug 118 is configured to connect a control terminal of the on-load tap changer 114 to a tap changing control 120. Wherein the aviation plug 118 refers to an electromechanical element that connects electrical lines; the aviation plug 118 may have the effect of connecting or disconnecting an electrical circuit. Specifically, the aviation plug 118 is connected between the control end of the on-load tap changer 114 and the low-voltage distribution terminal 120, so that the on-load tap changer 114 is controlled by the tap changing control device 120, and further when the tap changing condition is met, the tap changing control device 120 can transmit a tap changing control instruction to the on-load tap changer 114 through the aviation plug 118, so that the on-load tap changer 114 can regulate the voltage of the transformer according to the tap changing control instruction. By providing the aviation plug 118, the voltage regulation control device 120 is easily plugged and unplugged, and the voltage regulation control device 120 is easily able to transmit signals to the on-load tap changer 114.
As shown in fig. 3, in one embodiment, the voltage regulation control device 120 includes a data acquisition circuit 122, a second processor 124, and a communication module 126; the data acquisition circuit 122 is connected with the low-voltage side of the transformer 104 and the second processor 124, the data acquisition circuit 122 is used for acquiring voltage data of the low-voltage side of the transformer 104 and sending the voltage data of the low-voltage side of the transformer 104 to the second processor 124 for processing, the second processor 124 is used for setting a preset threshold value and comparing and judging whether to send the voltage regulation control instruction to the on-load voltage regulation switching device 110, the second processor 124 is connected with the on-load voltage regulation switching device 110 and the communication module 126, and the communication module 126 is connected with the wireless communication module 132. The second processor 124 refers to a device having functions of signal processing, signal transmission, and the like; for example, the second processor 124 may be a single chip.
As shown in fig. 4, in one embodiment, the tap changing control apparatus 120 further comprises a signal output circuit 128, the signal output circuit 128 is used for connecting the on-load tap changing apparatus 110 and the second processor 124, and the second processor 124 sends tap changing control instructions to the on-load tap changing apparatus 110 through the signal output circuit 128.
In one embodiment, the voltage regulation control device 120 further comprises a power circuit 121 connected to the second processor 124, wherein the power circuit 121 is configured to provide operating power to the second processor 124. The power circuit 121 may be an independent power module, for example, the power circuit 121 may be a battery; the power circuit 121 may also be an intermediate conversion power module, for example, the power circuit 121 may access the low voltage side of the transformer to convert the power on the low voltage side of the transformer into power suitable for the second processor 124.
In one embodiment, the transformer is a 10 kv transformer and the wireless communication module 132 is a 4G communication module.
As shown in fig. 4, in one embodiment, the transformer may be a three-phase four-wire transformer, the low-voltage side of the transformer is connected to the incoming line end of the meter through the outdoor ac distribution box, and the outgoing line end of the meter is connected to the electric equipment; the outdoor alternating current distribution box can comprise an incoming line switch and a plurality of outgoing line switches which are connected with the meter meters in a one-to-one correspondence mode.
Above-mentioned on-load voltage regulation device includes: the on-load voltage regulation switch device is used for connecting the overhead line and the high-voltage side of the transformer; the voltage regulation control device is used for connecting the low-voltage side of the transformer with the on-load voltage regulation switch device; the terminal voltage monitoring device is used for connecting the wire inlet side of the meter with the voltage regulation control device; the tail end voltage monitoring device is used for acquiring a first voltage at the wire inlet side of the meter and sending the first voltage to the voltage regulating control device; the voltage regulation control device is used for acquiring a second voltage on the low-voltage side of the transformer, comparing the second voltage and the first voltage with a preset threshold respectively, and sending a voltage regulation control instruction to the on-load voltage regulation switch device when the second voltage is greater than the maximum value of the preset threshold or the first voltage is less than the minimum value of the preset threshold; the on-load voltage regulation switch device regulates the voltage of the high-voltage side of the transformer according to the voltage regulation control instruction; the terminal voltage monitoring device comprises a wireless communication module, a first processor and a voltage acquisition circuit, wherein the voltage acquisition circuit is used for connecting the wire inlet side of the meter; the wireless communication module is respectively connected with the voltage regulation control device and the first processor; the first processor is connected with the voltage acquisition circuit. The voltage signal acquired by the voltage acquisition circuit is sent to the voltage regulation control device through the wireless communication module, so that long-distance stable transmission of the signal is realized, a lead is not needed in the transmission of the signal, the expansibility is high, and the terminal voltage monitoring device can be installed on a line in a charged manner without power failure. The on-load voltage regulation device has the function of automatically regulating voltage, power failure voltage regulation is not required to be carried out manually, and the input of labor cost and the frequency of power failure are reduced.
In one embodiment, there is provided a method for transforming an off-circuit tap changer, the off-circuit tap changer including a high-voltage bushing on a cover plate of a transformer body, a low-voltage output terminal, an off-circuit tap switch, and a high-voltage tap lead led out from a high-voltage side coil on the transformer body and electrically connected to the off-circuit tap switch, the method comprising:
and (3) lifting out the transformer body of the non-excitation voltage regulating transformer, and removing the high-voltage sleeve, the non-excitation tap switch and the high-voltage tap lead to obtain the first transformer.
The transformer body of the non-excitation voltage regulating transformer consists of a high-voltage side coil, a low-voltage side coil and an iron core, wherein the outer layers of the high-voltage side coil and the low-voltage side coil are wrapped with insulating layers, and the high-voltage side coil and the low-voltage side coil are wound on the iron core; and a high-voltage tapping lead led out from the high-voltage side coil is connected to the off-circuit tapping switch. The non-excitation tap switch is provided with an input port and an output port, wherein the input port of the non-excitation tap switch is connected with a high-voltage sleeve arranged on a cover plate of the transformer body, and the output port of the non-excitation tap switch is connected with a high-voltage tap lead; the low-voltage side coil leads out a low-voltage tapping lead of the non-excitation transformer to a low-voltage sleeve of the transformer.
After a fixing screw surrounding an extended edge of a top cover of an oil tank of the non-excitation voltage regulating transformer is removed, a transformer body of the non-excitation voltage regulating transformer is lifted out, a high-voltage sleeve, a non-excitation tapping switch and a high-voltage tapping lead on a cover plate of the transformer body are removed, a first transformer is obtained, and a new insulating protective layer is wrapped on the outer layer of the high-voltage tapping lead.
And inserting a high-voltage side tapping lead terminal of the on-load tap changer into the mounting position of the high-voltage bushing on the first transformer.
After the on-load tap changer is hung above the first transformer, a high-voltage side tapping lead terminal of the on-load tap changer is inserted into the installation position of an original high-voltage bushing on the first transformer in an aligning manner, and the first transformer is butted with a shell of the on-load tap changer through fastening screws.
The high-voltage tap lead is electrically connected to the high-voltage side tap lead terminal.
And (3) electrically connecting the high-voltage tapping lead with a new insulating protective layer wrapped on the outer layer with a high-voltage side tapping lead terminal of the on-load tap changer, then drying the transformer body, then putting the transformer body back to the position of the original transformer body, and fastening the fixing screw which is removed before fastening and surrounds the extended edge of the top cover of the oil tank of the non-excitation voltage-regulating transformer.
In one embodiment, electrically connecting the high voltage tap lead to the high side tap lead terminal further comprises: and injecting new transformer oil into the oil tank of the transformer.
And electrically connecting an external lead of a signal output circuit of the voltage regulation control device with an external terminal of the on-load voltage regulation switch device.
And connecting an external lead of a signal output circuit of the voltage regulation control device to an external terminal of the on-load voltage regulation switch device.
And the data acquisition circuit of the voltage regulation control device and the external lead of the power circuit are electrically connected with the low-voltage output terminal of the first transformer.
And connecting a tail end voltage monitoring device arranged on the wire inlet side of the meter with the voltage regulation control device through a wireless signal to obtain the on-load tap changing transformer.
The on-load voltage regulation switch device is electrically connected with the voltage regulation control device and the first transformer respectively, and the voltage regulation control device is electrically connected with the first transformer; the tail end voltage monitoring device is electrically connected with the wire inlet side of the meter; the wire inlet side of the meter is electrically connected with the low-voltage side of the non-excitation voltage regulating transformer; the terminal voltage monitoring device comprises a wireless communication module, a first processor and a voltage acquisition circuit, wherein the voltage acquisition circuit is used for connecting the wire inlet side of the meter; the wireless communication module is respectively connected with the voltage regulation control device and the first processor; the first processor is connected with the voltage acquisition circuit; the voltage acquisition circuit is used for acquiring voltage data of the inlet side of the meter, the first processor is used for processing the voltage data acquired by the voltage acquisition circuit, and the wireless communication module is used for sending the first voltage to the voltage regulation control device; the voltage regulation control device is used for acquiring a second voltage at the low-voltage side of the on-load tap changing transformer, comparing the second voltage and the first voltage with a preset threshold respectively, and sending a voltage regulation control instruction to the on-load tap changing switch device when the second voltage is greater than the maximum value of the preset threshold or the first voltage is less than the minimum value of the preset threshold; and the on-load tap changer adjusts the high-voltage side voltage of the on-load tap changing transformer according to the voltage regulation control instruction.
In one embodiment, the on-load tap changer further comprises an oil level gauge for detecting the level of transformer oil in the transformer tank.
In one embodiment, the on-load tap changer is a 10 kv transformer, and the wireless communication module is a 4G communication module.
The transformation method of the non-excitation voltage regulating transformer comprises the following steps: the transformer body of the non-excitation voltage regulating transformer is lifted out, and a high-voltage sleeve, a non-excitation tap switch and a high-voltage tap lead are removed to obtain a first transformer; inserting a high-voltage side tapping lead terminal of the on-load tap changer into the mounting position of a high-voltage bushing on the first transformer; electrically connecting the high-voltage tapping lead with a high-voltage side tapping lead terminal; electrically connecting an external lead of a signal output circuit of the voltage regulation control device with an external terminal of the on-load voltage regulation switch device; electrically connecting a data acquisition circuit of the voltage regulation control device and an external lead of the power circuit with a low-voltage output terminal of the first transformer; connecting a tail end voltage monitoring device arranged on the wire inlet side of the meter with the voltage regulation control device through a wireless signal to obtain an on-load tap changing transformer; the on-load voltage regulation switch device is electrically connected with the voltage regulation control device and the first transformer respectively, and the voltage regulation control device is electrically connected with the first transformer; the wire inlet side of the meter is electrically connected with the low-voltage side of the non-excitation voltage regulating transformer; the tail end voltage monitoring device is electrically connected with the wire inlet side of the meter; the terminal voltage monitoring device comprises a wireless communication module, a first processor and a voltage acquisition circuit, wherein the voltage acquisition circuit is used for connecting the wire inlet side of the meter; the wireless communication module is respectively connected with the voltage regulation control device and the first processor; the first processor is connected with the voltage acquisition circuit; the voltage acquisition circuit is used for acquiring voltage data of the inlet side of the meter, the first processor is used for processing the voltage data acquired by the voltage acquisition circuit, and the wireless communication module is used for sending the first voltage to the voltage regulation control device; the voltage regulation control device is used for acquiring a second voltage at the low-voltage side of the on-load tap changing transformer, comparing the second voltage and the first voltage with a preset threshold respectively, and sending a voltage regulation control instruction to the on-load tap changing switch device when the second voltage is greater than the maximum value of the preset threshold or the first voltage is less than the minimum value of the preset threshold; and the on-load tap changer adjusts the high-voltage side voltage of the on-load tap changing transformer according to the voltage regulation control instruction. By adopting the modularized on-load tap changer, the tap changing controller and the terminal voltage monitoring device, the transformation from the off-circuit tap changing transformer to the on-load tap changing transformer can be completed without changing the appearance structure of the off-circuit distribution transformer body, and the automatic regulation of the line voltage is realized by upgrading and transforming the off-circuit tap changing transformer, so that the self-load of the electric energy and the satisfaction degree of users are improved. By upgrading and transforming the stock non-excitation oil-immersed transformer, the recycling of assets is realized, the investment cost is reduced, and the economic benefit is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. An on-load voltage regulation device, comprising:
the on-load voltage regulation switch device is used for connecting the overhead line and the high-voltage side of the transformer;
the voltage regulation control device is used for connecting the low-voltage side of the transformer with the on-load voltage regulation switch device;
the tail end voltage monitoring device is used for connecting the wire inlet side of the meter with the voltage regulation control device;
the tail end voltage monitoring device is used for acquiring a first voltage at the wire inlet side of the meter and sending the first voltage to the voltage regulating control device; the voltage regulation control device is used for acquiring a second voltage on the low-voltage side of the transformer, comparing the second voltage and the first voltage with a preset threshold respectively, and sending a voltage regulation control instruction to the on-load voltage regulation switch device when the second voltage is greater than the maximum value of the preset threshold or the first voltage is less than the minimum value of the preset threshold; the on-load voltage regulation switch device regulates the voltage of the high-voltage side of the transformer according to the voltage regulation control instruction;
the terminal voltage monitoring device comprises a wireless communication module, a first processor and a voltage acquisition circuit, wherein the voltage acquisition circuit is used for being connected with the wire inlet side of the meter; the wireless communication module is respectively connected with the voltage regulation control device and the first processor; the first processor is connected with the voltage acquisition circuit; the voltage acquisition circuit is used for gathering the voltage data of the inlet wire side of strapping table meter, first treater is used for handling the voltage data that voltage acquisition circuit gathered, wireless communication module be used for with first voltage sends for pressure regulating controlling means.
2. The on-load tap changing device of claim 1, wherein the on-load tap changing device comprises a high voltage bushing, an on-load tap changer, and a docking terminal;
the high-voltage bushing is used for connecting the overhead line with the input end of the on-load tap changer; the control end of the on-load voltage regulating switch is connected with the voltage regulating control device and used for receiving the voltage regulating control instruction; one end of the butt-joint terminal is connected with the high-voltage side of the transformer, and the other end of the butt-joint terminal is connected with the output end of the on-load tap changer.
3. The on-load tap changing device of claim 2, further comprising an aviation plug for connecting the control terminal of the on-load tap changer to the tap changing control device.
4. The on-load tap changing device of claim 2 or 3, wherein the on-load tap changing switch is a vacuum permanent magnet tap changing switch.
5. The on-load tap changing device of claim 1, wherein the tap changing control device comprises a data acquisition circuit, a communication module, and a second processor; the data acquisition circuit respectively with the low pressure side of transformer with the second treater is connected, the data acquisition circuit is used for gathering the voltage data of the low pressure side of transformer will the voltage data of the low pressure side of transformer sends for the second treater is handled, the second treater is used for setting up and predetermines the threshold value and compare the judgement to on-load tap changer sends the voltage regulation control instruction, the second treater respectively with on-load tap changer with communication module connects, communication module with wireless communication module connects.
6. The on-load tap changing device of claim 5, wherein the tap changing control device further comprises a signal output circuit for connecting the on-load tap changing device to the second processor, the signal output circuit for sending tap changing control instructions to the on-load tap changing device.
7. The on-load tap changer of claim 5, further comprising a power circuit coupled to the second processor, the power circuit configured to provide operating power to the second processor.
8. The on-load tap changing device of claim 1, wherein the transformer is a 10 kv transformer and the wireless communication module is a 4G communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921781572.2U CN210517796U (en) | 2019-10-22 | 2019-10-22 | On-load voltage regulation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921781572.2U CN210517796U (en) | 2019-10-22 | 2019-10-22 | On-load voltage regulation device |
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| CN210517796U true CN210517796U (en) | 2020-05-12 |
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| CN201921781572.2U Active CN210517796U (en) | 2019-10-22 | 2019-10-22 | On-load voltage regulation device |
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2019
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Effective date of registration: 20200918 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |