CN206060205U - A kind of distribution transformer voltage power-less structure adjusting device - Google Patents
A kind of distribution transformer voltage power-less structure adjusting device Download PDFInfo
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- CN206060205U CN206060205U CN201621084628.5U CN201621084628U CN206060205U CN 206060205 U CN206060205 U CN 206060205U CN 201621084628 U CN201621084628 U CN 201621084628U CN 206060205 U CN206060205 U CN 206060205U
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- voltage
- distribution transformer
- controller
- transformer
- reactive power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
This utility model patent discloses a kind of distribution transformer voltage power-less structure adjusting device, and the device includes load tap changing distribution transformer, reactive power compensator, controller, current transformer.This utility model solves the problems, such as that distribution transformer in prior art is unable to distribution transformer that automatic loaded voltage regulation causes and reactive power compensator and is unable to structure adjusting voltage, idle, realize distribution transformer automatic loaded voltage regulation function, and realize the voltage power-less structure adjusting of load tap changing distribution transformer and reactive power compensator, ensure that supply voltage qualification rate and reactive power equilibrium, the loss of power distribution network is reduced, the quality of power supply is improved.
Description
Technical field
This device is related to power product technical field, comprehensively adjusts in particular to a kind of distribution transformer voltage power-less
Engagement positions.
Background technology
With expanding economy and the extensive application of high technology equipment, the requirement more and more higher to the quality of power supply, voltage
Fluctuation and the change of reactive power directly affect power supply quality, and the power supply for being related to power distribution network is stable, economical operation.Reactive-load compensation
Reasonable disposition and the optimizing regulation of voltage be the important means for ensureing power distribution network power supply quality and reduce loss.
Distribution transformer voltage power-less structure adjusting device is that one kind can adjust distribution transformer in the case of on-load
Device output voltage, while controlling the switching of reactive power compensator capacitor, balances low-voltage circuit and Reactive Power in Distributing Transformer
Voltage power-less structure adjusting device.At present, distribution transformer is non-excitation pressure adjustment mode, it is impossible to as distribution transformer is supplied
Automatic loaded voltage regulation is realized in the change of piezoelectric voltage, can not realize voltage, idle structure adjusting, causes the low pressure of power distribution network to supply
Piezoelectric voltage qualification rate is low, loss is serious.When distribution transformer supply voltage is high, reactive power is not enough, due to distribution transformer
Automatic loaded voltage regulation is unable to, so reactive power compensator cannot put into capacitor and carry out reactive-load compensation, causes distribution transformer to supply
Piezoelectric voltage is constantly in the high state of voltage, and reactive power is transmitted in supply line always, loss increase.Work as distribution transformer
When supply voltage is low, reactive power is not enough, reactive power compensator input capacitor carries out reactive-load compensation, matches somebody with somebody after reactive power equilibrium
The supply voltage of piezoelectric transformer may be still below the lower limit of voltage acceptability limit, as distribution transformer can not have load to adjust automatically
Pressure, causes the supply voltage of distribution transformer to be constantly in the low state of voltage, affects supply voltage quality.Therefore only distribution
Transformator realizes automatic loaded voltage regulation, and realizes voltage, idle structure adjusting with reactive power compensator, just can guarantee that power supply electricity
The qualified and reactive power equilibrium of pressure.
The content of the invention
The purpose of this utility model is to provide a kind of distribution transformer voltage power-less structure adjusting device, to solve existing skill
In art, the distribution transformer that automatic loaded voltage regulation causes is unable to distribution transformer and structure adjusting electricity is unable to reactive power compensator
Pressure, idle problem.
To reach above-mentioned purpose, this utility model can be adopted the following technical scheme that：
A kind of distribution transformer voltage power-less structure adjusting device, including load tap changing distribution transformer, reactive-load compensation dress
Put, controller, current transformer.
The current transformer be arranged on the load tap changing distribution transformer high-side lead or low-voltage side outlet or
In high-side lead and low-voltage side outlet；
The current transformer and the load tap changing distribution transformer low-voltage side outlet are connected with the controller, are passed
Defeated input signal is analyzed judgement according to input signal and sends control signal to the controller, the controller；
The load tap changing distribution transformer and the reactive power compensator are connected with the controller, receive the control
The control signal that device processed sends；
Wherein, the input signal includes current signal and voltage signal, and the control signal includes Regulation Control signal
With the control of reactive power compensating signal.
Relative to prior art, the beneficial effects of the utility model are the automatic loaded voltage regulations for realizing distribution transformer,
And realize the voltage power-less structure adjusting of load tap changing distribution transformer and reactive power compensator, it is ensured that the conjunction of supply voltage
Lattice rate and reactive power equilibrium, improve supply voltage quality.
Description of the drawings
Schematic diagrams of the Fig. 1 for this utility model distribution transformer voltage power-less structure adjusting device embodiment.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is further described.Embodiments described below is only used for becoming apparent from
Ground explanation the technical solution of the utility model, is embodiment that this utility model is selected, rather than the embodiment of whole, it is impossible to
This is limiting protection domain of the present utility model.Those skilled in the art are obtained on the premise of creative work is not made
Every other embodiment, belong to this utility model protection scope.
As shown in Figure 1：This utility model discloses a kind of distribution transformer voltage power-less structure adjusting device, includes load and adjusts
Press-fitting piezoelectric transformer 1, controller 2, low-pressure side current transformer 3, high voltage side current transformer 4, reactive power compensator 5, voltage
Test point 6, high voltage side current transformer 4 are arranged at 1 high-side lead of load tap changing distribution transformer, low-pressure side Current Mutual Inductance
Device 3 is arranged at 1 low-voltage side outlet of load tap changing distribution transformer, and reactive power compensator 5 is low with load tap changing distribution transformer 1
The connection of pressure side, load tap changing distribution transformer 1, low-pressure side current transformer 3, high voltage side current transformer 4, reactive power compensator
5th, voltage detecting point 6 is connected with control 2.
When controller 2 receives the voltage signal of voltage detecting point 6, the current signal of high voltage side current transformer 4 and low
During the current signal of pressure side transformer 3, controller 2 carries out voltage and reactive power optimization point according to the current signal and voltage signal that receive
Analysis is calculated.When result of calculation shows high voltage, reactive power deficiency, controller 2 sends voltage control signal to on-load voltage regulation
Voltage is adjusted to acceptability limit by distribution transformer 1, load tap changing distribution transformer 1, and controller 2 retransmits the control of reactive power compensating letter
Number to reactive power compensator 5, reactive power is adjusted to balance by 5 Reasonable input capacitor of reactive power compensator.Reactive power equilibrium
Afterwards, if controller 2 detects higher limit of the magnitude of voltage higher than voltage acceptability limit, controller 2 sends voltage control signal to having
Voltage is adjusted to acceptability limit by voltage adjustment of on-load distribution transformer 1, load tap changing distribution transformer 1.When result of calculation show voltage it is low,
When reactive power is not enough, controller 2 sends the control of reactive power compensating signal to reactive power compensator 5, and reactive power compensator 5 is rationally thrown
Enter capacitor and reactive power is adjusted to into balance.After reactive power equilibrium, if controller 2 detects magnitude of voltage, and to be still below voltage qualified
The lower limit of scope, then the transmission of controller 2 voltage control signal is to load tap changing distribution transformer 1, on-load voltage regulation distribution transformer
Voltage is adjusted to acceptability limit by device 1.
The above is only preferred embodiment of the present utility model, it is noted that for those skilled in the art
For, on the premise of without departing from this utility model know-why, some changes and improvements can also be made, these change and change
Enter.
Claims (4)
1. a kind of distribution transformer voltage power-less structure adjusting device, including load tap changing distribution transformer, reactive power compensator,
Controller, current transformer；
The current transformer is arranged on the high-side lead or low-voltage side outlet or high pressure of the load tap changing distribution transformer
On side lead and low-voltage side outlet；
The current transformer and the load tap changing distribution transformer low-voltage side outlet are connected with the controller, are transmitted defeated
Enter signal to the controller, the controller is analyzed judgement according to input signal and sends control signal；
The load tap changing distribution transformer and the reactive power compensator are connected with the controller, receive the controller
The control signal for sending；
Wherein, the input signal includes current signal and voltage signal, and the control signal includes Regulation Control signal and nothing
Work(compensating control signal.
2. distribution transformer voltage power-less structure adjusting device according to claim 1, it is characterised in that：It is described to have load to adjust
Press-fitting piezoelectric transformer can adjust distribution transformer output voltage in the case of on-load.
3. distribution transformer voltage power-less structure adjusting device according to claim 1, it is characterised in that：The electric current is mutual
Sensor transmits current signal to the controller, and the load tap changing distribution transformer low-voltage side outlet transmits voltage signal to institute
State controller.
4. distribution transformer voltage power-less structure adjusting device according to claim 1, it is characterised in that：It is described to have load to adjust
Press-fitting piezoelectric transformer receives the Regulation Control signal that the controller sends, and the reactive power compensator receives the controller and sends out
The control of reactive power compensating signal for going out, carries out the structure adjusting of voltage power-less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621084628.5U CN206060205U (en) | 2016-09-28 | 2016-09-28 | A kind of distribution transformer voltage power-less structure adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621084628.5U CN206060205U (en) | 2016-09-28 | 2016-09-28 | A kind of distribution transformer voltage power-less structure adjusting device |
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| Publication Number | Publication Date |
|---|---|
| CN206060205U true CN206060205U (en) | 2017-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621084628.5U Active CN206060205U (en) | 2016-09-28 | 2016-09-28 | A kind of distribution transformer voltage power-less structure adjusting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229993A (en) * | 2016-09-28 | 2016-12-14 | 山东民生电气设备有限公司 | A kind of distribution transformer voltage power-less structure adjusting device |
-
2016
- 2016-09-28 CN CN201621084628.5U patent/CN206060205U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229993A (en) * | 2016-09-28 | 2016-12-14 | 山东民生电气设备有限公司 | A kind of distribution transformer voltage power-less structure adjusting device |
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