CN205070444U - Low pressure circuit terminal voltage compensation arrangement - Google Patents
Low pressure circuit terminal voltage compensation arrangement Download PDFInfo
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- CN205070444U CN205070444U CN201520806656.2U CN201520806656U CN205070444U CN 205070444 U CN205070444 U CN 205070444U CN 201520806656 U CN201520806656 U CN 201520806656U CN 205070444 U CN205070444 U CN 205070444U
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- voltage
- power transmission
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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
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- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model provides a low pressure circuit terminal voltage compensation arrangement can not only solve terminal low pressure problem low excessively among the rural electric network, and the normal power consumption of guarantee resident is carried moreover and is pressed effectual, simple structure, that the installation is maintained is convenient. It includes: input voltage current measuring device, output voltage current measuring device, input voltage current measuring device and output voltage current measuring device output are connected simultaneously to controller, input, and voltage compensation module input is connected to the controller control end, ui power transmission line and UO power transmission line are connected respectively to voltage compensation module, output, the voltage compensation module is connected to first contactor, one end, and the ui power transmission line is connected to the other end, the ui power transmission line is connected to second contactor, one end, and the UO power transmission line is connected to the other end, with the reactive compensation module, including three looks switch and three condenser.
Description
Technical field
The utility model relates to a kind of voltage compensating device, is specifically related to a kind of low-voltage circuit terminal voltage compensation device.
Background technology
In Rural Power Distribution Network, due to the dispersiveness of power consumer distribution, there is the little and situation of radius of electricity supply more than 500 of load unavoidably.Because load is little, the general low-voltage circuit that adopts is powered, but low-voltage circuit is through the power transmission of long-distance, the change that terminal voltage can meet along with user and wide fluctuations, can not meet user's normal electricity consumption needs.
Utility model content
, load unstable caused low-voltage present situation large for rural power grids weak foundation, radius of electricity supply, the utility model provides a kind of low-voltage circuit terminal voltage compensation device, the problem that in rural power grids, end low pressure is too low can not only be solved, ensure resident normal electricity consumption, and pressure-raising is effective, structure is simple, convenient for installation and maintenance.
The utility model adopts following scheme:
A kind of low-voltage circuit terminal voltage compensation device, is characterized in that, comprising:
Input voltage and input current measurement mechanism, input all connects U
ipower transmission line;
Output voltage current measuring device, input all connects U
opower transmission line;
Controller, input connects input voltage and input current measurement mechanism and output voltage current measuring device output simultaneously, and controller control end connects voltage compensation module input;
Voltage compensation module, output connects U respectively
ipower transmission line and U
opower transmission line;
First contactor, one end connects voltage compensation module, and the other end connects U
ipower transmission line;
Second contactor, one end connects U
ipower transmission line, the other end connects U
opower transmission line; With
Reactive compensation module, comprise three phase switches and three capacitors, three phase switches are connected with UO power transmission line, and are connected with three capacitor one end simultaneously, and three capacitor one end other ends are connected with N power transmission line.
Described low-voltage circuit terminal voltage compensation device preferred version, input voltage and input current measurement mechanism comprises input voltage instrument transformer and input current transformer, and the input of input voltage instrument transformer and input current transformer all connects U
ipower transmission line;
Described low-voltage circuit terminal voltage compensation device preferred version, output voltage current measuring device comprises output voltage instrument transformer and output current transformer, and the input of output voltage instrument transformer and output current transformer all connects U
opower transmission line;
Described low-voltage circuit terminal voltage compensation device preferred version either a program, its entirety is fixed in housing, housing is connected as one by jockey and electric pole, and jockey comprising bracket for placing housing, arranging bearing diagonal and the steel wire rope being connected housing and electric pole below bracket.
The beneficial effects of the utility model:
The utility model device promotes line voltage distribution by voltage compensation module and reactive compensation module, improves the quality of power supply.The utility model device can effective guarantee power supply quality, improve rate of qualified voltage, and without humorous wave interference, delivery efficiency is high, can long continuous operation, applied widely; Have that voltage boosting effect is good, device volume is little, low in energy consumption, convenient for installation and maintenance, long service life, defencive function strong, reliability high; and directly can effectively solve the problem that in rural power grids, end low pressure is too low, ensure resident's normal power supply.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model scheme of installation.
In figure 1, input voltage instrument transformer, 2, input current transformer, 3, output voltage instrument transformer, 4, output current transformer, 5, phase switch, 6, capacitor.
Embodiment
Better understand the utility model for the ease of those skilled in the art, be described in further details below in conjunction with the drawings and specific embodiments to the utility model, following is only exemplary do not limit protection range of the present utility model.
A kind of low-voltage circuit terminal voltage compensation device, comprises input voltage and input current measurement mechanism, output voltage current measuring device, controller, voltage compensation module, the first contactor K5, the second contactor K4 and reactive compensation module; Input voltage and input current measurement mechanism, input all connects U
ipower transmission line; Output voltage current measuring device, input all connects U
opower transmission line; Controller input connects input voltage and input current measurement mechanism and output voltage current measuring device output simultaneously, and controller control end connects voltage compensation module input; Voltage compensation module output connects U respectively
ipower transmission line and U
opower transmission line; First contactor K5 one end connects voltage compensation module, and the other end connects U
ipower transmission line; Second contactor K4 one end connects U
ipower transmission line, the other end connects U
opower transmission line; Reactive compensation module comprises three phase switches 5 and three capacitors 6, three phase switches 5 and U
opower transmission line connects, and is connected with three capacitor 6 one end simultaneously, and three capacitor 6 one end other ends are connected with N power transmission line.
Input voltage and input current measurement mechanism comprises input voltage instrument transformer 1 and input current transformer 2, and the input of input voltage instrument transformer 1 and input current transformer 2 all connects U
ipower transmission line;
Output voltage current measuring device comprises output voltage instrument transformer 3 and output current transformer 4, and the input of output voltage instrument transformer 3 and output current transformer 4 all connects U
opower transmission line;
With reference to accompanying drawing 2, the utility model device entirety is fixed in housing 7, housing 7 is connected as one by jockey and electric pole 11, and jockey comprises bracket 8 for placing housing 7, arrange bearing diagonal 9 below bracket 8 and be connected the steel wire rope 10 of housing 7 and electric pole 11.
The course of work of the utility model device:
A) (>=198V when monitoring control devices is normal to input voltage Ui, the highlyest be set to 220V), send bypass operating instruction, the normally closed point of second contactor K4 closes, normal battle disconnects, this device pressure regulation some work, in bypass mode of operation, reducing line loss, extends this device pressure regulation part useful life.
B) (the < 198V when controller detects that input voltage Ui is on the low side, the highlyest be set to 220V), send pressure regulation operating instruction, first contactor K5 is often made war closed, normally closed disconnection, this device pressure regulation some work in automatic Regulation operational mode, with lifting end utilization voltage.
C) voltage compensation module has 2 gears, and controller according to the change of the fluctuation of system voltage and customer charge, can be dynamically adapted to suitable gear, make output voltage Uo meet the need for electricity of terminal temperature difference all the time.
D) when this device pressure regulation part exception or running current overload, controller sends bypass operating instruction automatically, and this device pressure regulation part is deactivated, to guarantee security of operation and the power supply continuously of this device pressure regulation part.
Above only describes general principle of the present utility model and preferred implementation, those skilled in the art can make many changes and improvements according to foregoing description, and these changes and improvements should belong to protection range of the present utility model.
Claims (4)
1. a low-voltage circuit terminal voltage compensation device, is characterized in that, comprising:
Input voltage and input current measurement mechanism, input all connects U
ipower transmission line;
Output voltage current measuring device, input all connects U
opower transmission line;
Controller, input connects input voltage and input current measurement mechanism and output voltage current measuring device output simultaneously, and controller control end connects voltage compensation module input;
Voltage compensation module, output connects U respectively
ipower transmission line and U
opower transmission line;
First contactor, one end connects voltage compensation module, and the other end connects U
ipower transmission line;
Second contactor, one end connects U
ipower transmission line, the other end connects U
opower transmission line; With
Reactive compensation module, comprises three phase switches and three capacitors, three phase switches and U
opower transmission line connects, and is connected with three capacitor one end simultaneously, and three capacitor one end other ends are connected with N power transmission line.
2. low-voltage circuit terminal voltage compensation device according to claim 1, it is characterized in that: input voltage and input current measurement mechanism comprises input voltage instrument transformer and input current transformer, the input of input voltage instrument transformer and input current transformer all connects U
ipower transmission line.
3. low-voltage circuit terminal voltage compensation device according to claim 1, it is characterized in that: output voltage current measuring device comprises output voltage instrument transformer and output current transformer, the input of output voltage instrument transformer and output current transformer all connects U
opower transmission line.
4. low-voltage circuit terminal voltage compensation device according to claim 1 or 2 or 3, it is characterized in that: its entirety is fixed in housing, housing is connected as one by jockey and electric pole, and jockey comprising bracket for placing housing, arranging bearing diagonal and the steel wire rope being connected housing and electric pole below bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520806656.2U CN205070444U (en) | 2015-10-19 | 2015-10-19 | Low pressure circuit terminal voltage compensation arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520806656.2U CN205070444U (en) | 2015-10-19 | 2015-10-19 | Low pressure circuit terminal voltage compensation arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205070444U true CN205070444U (en) | 2016-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520806656.2U Active CN205070444U (en) | 2015-10-19 | 2015-10-19 | Low pressure circuit terminal voltage compensation arrangement |
Country Status (1)
| Country | Link |
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| CN (1) | CN205070444U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130036A (en) * | 2016-08-24 | 2016-11-16 | 浙江长兴杭华玻璃有限公司 | A kind of low-voltage reactive power inductive load tip compensates system |
| CN106684876A (en) * | 2017-01-21 | 2017-05-17 | 河北郎尊电力科技有限公司 | Tail-end low-voltage compensation device of rural power grid |
| CN109888792A (en) * | 2019-04-28 | 2019-06-14 | 成都亿成科技有限公司 | A kind of contactless voltage and current regulator of power distribution network low-voltage circuit dynamic |
-
2015
- 2015-10-19 CN CN201520806656.2U patent/CN205070444U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130036A (en) * | 2016-08-24 | 2016-11-16 | 浙江长兴杭华玻璃有限公司 | A kind of low-voltage reactive power inductive load tip compensates system |
| CN106684876A (en) * | 2017-01-21 | 2017-05-17 | 河北郎尊电力科技有限公司 | Tail-end low-voltage compensation device of rural power grid |
| CN109888792A (en) * | 2019-04-28 | 2019-06-14 | 成都亿成科技有限公司 | A kind of contactless voltage and current regulator of power distribution network low-voltage circuit dynamic |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |