CN209675941U - Series-type voltage regulating device - Google Patents
Series-type voltage regulating device Download PDFInfo
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- CN209675941U CN209675941U CN201920524784.6U CN201920524784U CN209675941U CN 209675941 U CN209675941 U CN 209675941U CN 201920524784 U CN201920524784 U CN 201920524784U CN 209675941 U CN209675941 U CN 209675941U
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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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- 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
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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- Supply And Distribution Of Alternating Current (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The utility model relates to a kind of series-type voltage regulating devices, idle compensating control is adjusted including three-phase imbalance, current transformer, capacitor changeover contactor, star-like capacitor and angle-style capacitor, three-phase imbalance adjustment idle compensating control is connect by current transformer with loaded line, star-like capacitor one end is connect with zero curve, the other end is in parallel with triple line by capacitor changeover contactor, angle-style capacitor is in parallel with triple line by capacitor changeover contactor, each capacitor changeover contactor is connect with three-phase imbalance adjustment idle compensating control.The present apparatus can stablize terminal voltage, make load from shutting down damage caused by too low or too high due to voltage instability；While burning voltage, reactive compensation can be carried out, improves line power factor；The stabilization of proof load side voltage, voltage regulation limits are wide, design bypass segment, and load-side caused by rationally avoiding because of equipment fault powers off hidden danger.
Description
Technical field
The utility model relates to reactive power compensation technology field more particularly to a kind of series-type voltage regulating devices.
Background technique
China's rural power grids are intricate, and power load has the characteristics that small-sized, dispersion.Rural power grids radius of electricity supply is larger, line
Diameter is smaller, and load seasonal fluctuation is larger, and the custom power quality of end is caused to cannot be guaranteed.Rural development is quick now, electricity
Equipment for gasification is increasing, will be so that much equipment such as washing machine, air-conditioning if distribution line terminal voltage is lower than allowed band
It is difficult to run well etc. non-illumination load.And the loads such as present electric appliance especially motor are bigger, they are active in consumption
When power, a large amount of reactive powers are also absorbed, reduce the power supply capacity of distribution line in this way.In a part of area, and will appear
Contrary circumstance, since small power station is intensive, wet season generated energy is big, causes neighbouring line voltage distribution excessively high, easily causes user equipment
Damage, causes dispute.
Currently, solve the problems, such as brownout this, usually expansion transformer capacity and increase distribution line line footpath,
To improve the power supply capacity in platform area.But the investment of this method is big, long in time limit, while the reactive power of line end is all by becoming
Power station or switchyard centralized compensation system provide, and reactive current keeps the efficiency of transmission line of electricity lower.
Utility model content
The purpose of the utility model is to provide a kind of series-type voltage regulating devices, being capable of real-time monitoring power grid user end electricity
Pressure and power quality, tracing compensation, comprehensive treatment.
The utility model is achieved by the following technical solution: a kind of series-type voltage regulating device, including three-phase is not
Balanced adjustment idle compensating control, current transformer, capacitor changeover contactor, star-like capacitor and angle-style capacitor,
The three-phase imbalance adjustment idle compensating control is connect by current transformer with loaded line, the star-like capacitor one
End is connect with the zero curve of loaded line, and the other end is in parallel with the triple line of loaded line by capacitor changeover contactor, institute
It is in parallel with the triple line of loaded line by capacitor changeover contactor to state angle-style capacitor, each switching capacitor formula connects
Tentaculum is connect with three-phase imbalance adjustment idle compensating control.
Preferably, the star-like capacitor includes the first star-like capacitor and the second star-like capacitor, first star
It is in parallel with the triple line of loaded line that type capacitor and the second star-like capacitor pass through three capacitor changeover contactors respectively,
Star-like capacitor can individually adjust a certain phases line voltage.
Preferably, the angle-style capacitor include the first angle-style capacitor and the second angle-style capacitor, described first jiao
It is in parallel with the triple line of loaded line that type capacitor and the second angle-style capacitor pass through three capacitor changeover contactors respectively,
Different from star-like capacitor, angle-style capacitor controls three-phase line voltage simultaneously.
The beneficial effect of the series-type voltage regulating device of the utility model is:
1) electric current is reduced, loss is reduced: since end compensation improves the power factor of line end, making the nothing in route
Function electric current greatly reduces, and the electric current of current through line is also just reduced, to reduce loss；
2) loss of voltage is reduced, the quality of voltage of voltage end: the reduction of route reactive component is improved, improves route confession
Electric energy power, so that the suitable promotion of the voltage of line end, can improve the service condition of electrical equipment；
3) utilization rate of transformer is improved: since System Reactive Power component is reduced, so that transformer reduces idle power output, from
And the utilization rate of transformer is improved, investment reduction；
4) stabilization of proof load side voltage, voltage regulation limits are wide, design bypass segment, rationally avoid because of equipment therefore
Load-side caused by hindering powers off hidden danger；
5) under identical power supply capacity, power supply quality is can be improved in series-type voltage regulating device, saves track investment, is protected
Hinder the stable operation of rural area transmission voltage, promotes economic benefit.
Detailed description of the invention
Fig. 1 is the circuit diagram of the series-type voltage regulating device of the utility model；
Fig. 2 is that the series-type voltage regulating device of the utility model is installed to the circuit diagram in breaker.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be understood by those skilled in the art with feature, to make apparent specific boundary to the protection scope of the utility model
It is fixed.
As shown in Fig. 2, by the series-type voltage regulating device DVG of the utility model install into circuit breaker Q F1 and QF2 it
Between, and be grounded.As shown in Figure 1, the series-type voltage regulating device DVG, including three-phase imbalance adjust reactive compensation control
Device JKW, current transformer, capacitor changeover contactor, star-like capacitor and angle-style capacitor processed, the three-phase imbalance tune
Whole idle compensating control JKW is connected by Current Transmit A, CTB, CTC and triple line A, B, C, the star-like capacitor
Including star-like capacitor C1, C2, the one end star-like capacitor C1, C2 passes through capacitor changeover contactor KM1, KM2 respectively and bears
Triple line A, B, the C for carrying route are in parallel, and the other end of star-like capacitor C1, C2 are then connect with zero curve, the angle-style capacitor packet
Angle-style capacitor C3, C4 are included, angle-style capacitor C3, C4 pass through capacitor changeover contactor KM3, KM4 and loaded line respectively
Triple line A, B, C it is in parallel, and each capacitor-type contactor KM1, KM2, KM3, KM4 adjust reactive compensation with three-phase imbalance
Controller JKW connection.
The utility model detects Current Transmit A, CTB, CTC current parameters acquired, is sampled, analytic operation
Afterwards, automatically adjust voltage compensation, bidirectional modulation, realizes energy-saving purpose.When power grid single-phase voltage lower than 190V or
(measurement accuracy grade is 0.2 grade), capacitor changeover contactor KM1, KM2 switch conduction, three-phase imbalance when higher than 240V
It adjusts idle compensating control JKW and step-up transformer automatic gear shifting is passed through according to output voltage range；When network voltage is in qualification
When in range, device cuts built in bypass automatically, i.e. capacitor changeover contactor KM3, KM4 conducting does not adjust voltage
It is whole；When device is more than specified working capacity or rated current, capacitor changeover contactor KM3, KM4 are disconnected automatically, device
Automatically switch to bypass；Three-phase imbalance, which adjusts idle compensating control JKW, has state arbitration functions, can prevent because of end electricity
It flows through big and causes front voltage decline excessive, beyond qualified range；Instantaneous loss of pressure phenomenon will not be all generated in handoff procedure.
Equipment itself is also equipped with intelligent automatic filter no-power compensation function, can reduce harmonic content, improves the power factor of line end,
Reduce loss.
The present apparatus can stablize terminal voltage, stablize terminal voltage in safe range, make load from due to voltage
Shakiness shuts down damage caused by too low or too high；While burning voltage, reactive compensation can be carried out, improves route function
Rate factor；The stabilization of proof load side voltage, voltage regulation limits are wide, design bypass segment, rationally avoid because of equipment fault
Caused load-side powers off hidden danger.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.
Claims (3)
1. a kind of series-type voltage regulating device, it is characterised in that: adjust idle compensating control, electric current including three-phase imbalance
Mutual inductor, capacitor changeover contactor, star-like capacitor and angle-style capacitor, the three-phase imbalance adjust reactive compensation control
Device processed is connect by current transformer with loaded line, the zero curve connection of described star-like capacitor one end and loaded line, another
End is in parallel with the triple line of loaded line by capacitor changeover contactor, and the angle-style capacitor passes through switching capacitor formula
Contactor is in parallel with the triple line of loaded line, and each capacitor changeover contactor adjusts idle benefit with three-phase imbalance
Repay controller connection.
2. series-type voltage regulating device according to claim 1, it is characterised in that: the star-like capacitor includes first
Star-like capacitor and the second star-like capacitor, the first star-like capacitor and the second star-like capacitor pass through three switchings respectively
Capacitor-type contactor is in parallel with the triple line of loaded line.
3. series-type voltage regulating device according to claim 1 or 2, it is characterised in that: the angle-style capacitor includes
First angle-style capacitor and the second angle-style capacitor, the first angle-style capacitor and the second angle-style capacitor pass through three respectively
Capacitor changeover contactor is in parallel with the triple line of loaded line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920524784.6U CN209675941U (en) | 2019-04-17 | 2019-04-17 | Series-type voltage regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920524784.6U CN209675941U (en) | 2019-04-17 | 2019-04-17 | Series-type voltage regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209675941U true CN209675941U (en) | 2019-11-22 |
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ID=68574330
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920524784.6U Active CN209675941U (en) | 2019-04-17 | 2019-04-17 | Series-type voltage regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209675941U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111600312A (en) * | 2020-05-09 | 2020-08-28 | 青岛鼎信通讯股份有限公司 | Power supply station area terminal low-voltage distributed treatment method based on reactive compensation |
-
2019
- 2019-04-17 CN CN201920524784.6U patent/CN209675941U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111600312A (en) * | 2020-05-09 | 2020-08-28 | 青岛鼎信通讯股份有限公司 | Power supply station area terminal low-voltage distributed treatment method based on reactive compensation |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 2239 Longcheng Avenue, Zhonglou District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Manweide Electric Co.,Ltd. Address before: 213000 No. 73 Wuyizhong Road, Wujin District, Changzhou City, Jiangsu Province Patentee before: Jiangsu Manweide Electric Co.,Ltd. |