CN205231759U - Three -phase unbalanced load has adjusting device of carrying - Google Patents
Three -phase unbalanced load has adjusting device of carrying Download PDFInfo
- Publication number
- CN205231759U CN205231759U CN201521050357.7U CN201521050357U CN205231759U CN 205231759 U CN205231759 U CN 205231759U CN 201521050357 U CN201521050357 U CN 201521050357U CN 205231759 U CN205231759 U CN 205231759U
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- transition
- phase
- switch
- load
- main circuit
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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)
Abstract
The utility model discloses a three -phase unbalanced load has adjusting device of carrying in the power supply field, including a load measurement and control device and at least one auto -change over device, every auto -change over device comprises an electron drive module and three regulating unit, every regulating unit is by three main circuit switch, three transition circuit switch and three transition resistance constitute, wherein every transition switch is established ties with transition resistance and is constituteed a transition branch road, every transition branch road and a main circuit switch are parallelly connected, three parallel circuit's one end corresponds the single -phase on -line that meets three -phase grid respectively, connecting to neutral line after the series load is connected behind the isopotential point again to the other end, the utility model discloses a regulating unit's phase inversion switches over, realizes the facilitating equalized conditioning to three phase loads, through the application of transition circuit, when realizing that the regulating unit phase inversion switches, the continuity of device power supply can be used to the power supply field.
Description
Technical field
The utility model relates to a kind of power equipment, and particularly one has a year adjusting device.
Background technology
, due to the dynamic change of power load, may often there is three-phase load unbalanced phenomena, thus affect the performance of the power supply capacity of distribution transformer, cause distribute-electricity transformer district to power uneconomical, dangerous in current distribute-electricity transformer district secondary side.
The day for announcing is on February 2nd, 2011, notification number is disclose one " three-phase balance automatic adjustment switch " in the utility model patent of CN201733095U, this device is made up of electronic module, control circuit and three single-phase switchs, for realizing certain road load switching between three phase mains, but this technology Problems existing is the continuity that can not ensure in handoff procedure to power.
The day for announcing is on April 17th, 2013, notification number is disclose one " low voltage electric network three-phase balance device " in the utility model patent of CN202888836U, this device is made up of load adjustment manager, adjusting device, for realizing certain road load switching in three phase mains between two-phase, there is the problem that can not ensure power supply continuity in handoff procedure in this technical scheme equally.
Utility model content
The purpose of this utility model is to provide a kind of three-phase load unbalance a year adjusting device, ensure that stability and the continuity of circuit supply.
The purpose of this utility model is achieved in that a kind of three-phase load unbalance has and carries adjusting device, comprise a measure and control of load device and at least one switching device shifter, each switching device shifter is made up of an electric drive module and three regulons, each regulon is by three main circuit switches, three transition circuit switches and three transition resistance compositions, wherein each transition switch and transition resistance are composed in series a transition branch road, each transition branch road is in parallel with a main circuit switch, one end of three parallel circuitss is corresponding respectively to be connect in the phase line of three phase network, the other end to connect after an isopotential point connecting to neutral line after series load again.
During the utility model normal power supply state, single regulon only has a road main circuit switch close, other two main circuit switches and three transition circuit switches all disconnect; When device carries out having the commutation of carrying adjustment to switch, connected the two-phase that need switch by transition circuit, thus the continuity of when ensureing that regulon switches, load being powered.Compared with prior art, the beneficial effects of the utility model are, the utility model is switched by the phase inversion of regulon, realizes the well-balanced adjustment to three-phase load; By the application of transition circuit, when realizing the switching of regulon phase inversion, the continuity that device is powered.The utility model can be used for for electrical domain.
In order to ensure the continuity of powering further, controllable silicon noncontacting switch selected by described main circuit switch and transition circuit switch.
In order to ensure the continuity of powering further, magnetic latching relay switch selected by described main circuit switch and transition circuit switch.
Accompanying drawing explanation
Fig. 1 is the utility model circuit theory diagrams.
Fig. 2 is that the utility model has the state diagram of carrying and normally working when regulon load is connected to a phase power supply.
Fig. 3 is that the utility model has a year regulon a phase to turn the state diagram of b phase time first step.
Fig. 4 is that the utility model has a year regulon a phase to turn the state diagram of b phase time second step.
Fig. 5 is that the utility model has a year regulon a phase to turn the state diagram of b phase time third step.
Fig. 6 is that the utility model has and carries a key joint unit load and to transfer the state diagram normally worked when b phase power supply.
Wherein, a, b, c, n are respectively distribute-electricity transformer district three-phase and four-line supply line, and K1, K3, K5 are respectively transition circuit switch; K2, K4, K6 are respectively main circuit switch; R is transition resistance; ZL is single-phase load.
Embodiment
A kind of three-phase load unbalance as shown in Figure 1 has a year adjusting device, comprise a measure and control of load device and at least one switching device shifter, each switching device shifter is made up of an electric drive module and three regulons, each regulon is by three main circuit switches, three transition circuit switches and three transition resistance compositions, wherein each transition switch and transition resistance are composed in series a transition branch road, each transition branch road is in parallel with a main circuit switch, one end of three parallel circuitss is corresponding respectively to be connect in the phase line of three phase network, the other end to connect after an isopotential point connecting to neutral line after series load again, main circuit switch and transition circuit switch select controllable silicon noncontacting switch or magnetic latching relay switch.
In utility model works, when three-phase load measure and control device detects that three-phase load unbalance exceedes limit value, three-phase load measure and control device is according to result of calculation, control the electric drive module action of corresponding switching device shifter, complete corresponding commutation by the corresponding regulon of electric drive module drive to switch, thus realize power distribution station three-phase balanced power supply.
So that a phase single-phase load is transferred in b phase transformation.
As shown in Figure 2, the main circuit switch K2 connecting a phase is closure state, and regulon is in the normal operating conditions that a phase is powered.
As shown in Figure 3, K1 closes, and the main circuit switch K2, the transition circuit K switch 1 that connect a phase are all closure state, and regulon is in the transition state that a phase is powered.
As shown in Figure 4, K2 disconnects, and the transition circuit K switch 1 connecting a phase is closure state, and regulon is in the transition state that a phase is powered.
As shown in Figure 5, K4 closes, and connects the transition circuit K switch 1 of a phase, connects the main circuit switch K4 of b phase and be all closure state, regulon be in a, b identical time the transition state of powering.
As shown in Figure 6, K1 disconnects, and the main circuit switch K4 connecting b phase is closure state, and regulon is in the normal operating conditions that b phase is powered.
The utility model is not limited to above-described embodiment; on the basis of technical scheme disclosed in the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some to some technical characteristics wherein to replace and distortion, these are replaced and are out of shape all in protection range of the present utility model.
Claims (3)
1. a three-phase load unbalance has a year adjusting device, it is characterized in that, comprise a measure and control of load device and at least one switching device shifter, each switching device shifter is made up of an electric drive module and three regulons, each regulon is by three main circuit switches, three transition circuit switches and three transition resistance compositions, wherein each transition switch and transition resistance are composed in series a transition branch road, each transition branch road is in parallel with a main circuit switch, one end of three parallel circuitss is corresponding respectively to be connect in the phase line of three phase network, the other end to connect after an isopotential point connecting to neutral line after series load again.
2. a kind of three-phase load unbalance according to claim 1 has a year adjusting device, and it is characterized in that, controllable silicon noncontacting switch selected by described main circuit switch and transition circuit switch.
3. a kind of three-phase load unbalance according to claim 1 has a year adjusting device, and it is characterized in that, magnetic latching relay switch selected by described main circuit switch and transition circuit switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521050357.7U CN205231759U (en) | 2015-12-16 | 2015-12-16 | Three -phase unbalanced load has adjusting device of carrying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521050357.7U CN205231759U (en) | 2015-12-16 | 2015-12-16 | Three -phase unbalanced load has adjusting device of carrying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205231759U true CN205231759U (en) | 2016-05-11 |
Family
ID=55906804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521050357.7U Expired - Fee Related CN205231759U (en) | 2015-12-16 | 2015-12-16 | Three -phase unbalanced load has adjusting device of carrying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205231759U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571800A (en) * | 2016-10-31 | 2017-04-19 | 国家电网公司 | Three-phase switch |
| CN107290624A (en) * | 2017-06-19 | 2017-10-24 | 武汉理工大学 | A kind of three-phase distribution circuit model suitable for non-effective earthing power distribution network |
-
2015
- 2015-12-16 CN CN201521050357.7U patent/CN205231759U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571800A (en) * | 2016-10-31 | 2017-04-19 | 国家电网公司 | Three-phase switch |
| CN107290624A (en) * | 2017-06-19 | 2017-10-24 | 武汉理工大学 | A kind of three-phase distribution circuit model suitable for non-effective earthing power distribution network |
| CN107290624B (en) * | 2017-06-19 | 2019-12-31 | 武汉理工大学 | Three-phase distribution line model suitable for non-effective ground connection distribution network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20211216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |