CN208001161U - A kind of phase-change switch module - Google Patents
A kind of phase-change switch module Download PDFInfo
- Publication number
- CN208001161U CN208001161U CN201820488627.XU CN201820488627U CN208001161U CN 208001161 U CN208001161 U CN 208001161U CN 201820488627 U CN201820488627 U CN 201820488627U CN 208001161 U CN208001161 U CN 208001161U
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- CN
- China
- Prior art keywords
- phase
- change switch
- switch module
- magnetic latching
- fixed contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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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- Keying Circuit Devices (AREA)
Abstract
The utility model proposes a kind of phase-change switch module for balanced three-phase current, structure includes:One dynamic two fixed contact magnetic latching relays KZ1, a dynamic two fixed contact magnetic latching relay KZ2 and other connection circuits.Disclosed phase-change switch module applies the magnetic latching relay fast response time feature small with resistance is connected, and by controlling signal, it can be achieved that not powering off commutation quickly, dynamic adjusts threephase load balance, and runs small power consumption.Disclosed phase-change switch module can ensure to have phase output power supply no matter how you give control signal, and will not occur two-phase in commutation process and be also turned on to cause phase fault.
Description
Technical field
The utility model patent is related to relay switch field, more particularly to a kind of phase-change switch module.
Background technology
The unbalanced main cause of low-voltage network threephase load is the asymmetry of three-phase power load, due to single-phase user
Uneven electricity consumption and great power single phase load the reasons such as access so that three-phase load unbalance problem is serious, causes electric power
The problems such as transformer consume increases, and output capacity reduces, fever.
Phase inversion switch is the commonly used equipment that three-phase imbalance problem is handled on current power grid, when a certain phase firewire electric current is excessive
When, it can be used at present most to realize balanced three-phase load by phase inversion switching user to that light phase of load
Number phase inversions switch is based on mechanical, and is by manual operation, therefore the commutation time is longer, can reach 300ms, causes to use
Electric equipment power-off restarting.
There is a kind of electronic type phase-change switch at present, controlled by microcontroller, first disconnect a phase, then connects the mode of another phase
The function of quick commutation is realized, but switchs and can not be disconnected in the presence of a phase in commutation, another phase is connected and causes phase fault again.
Invention content
The utility model patent solve the technical issues of be:The dynamic two fixed contact magnetic latching relays of one kind one are applied, are rung
It answers speed fast, realizes and do not power off commutation, while simplify control quickly, improve reliability, realize any mode commutation and all only have
One is connected.
The technical solution of the utility model patent:A kind of phase-change switch module, structure include:2 one dynamic two fixed contacts
Magnetic latching relay KZ1, KZ2 and its connection line;The fixed contact KZ11 connection three phase mains of magnetic latching relay KZ1 inputs
Hold A, the fixed contact of single-phase load the output end L, KZ1 of the movable contact KZ10 connection phase-change switch modules of magnetic latching relay KZ1
The fixed contact KZ21 connection three-phase power input end B of the movable contact KZ20, KZ2 of KZ12 connection magnetic latching relays KZ2, magnetic are kept
The fixed contact KZ22 connection three-phase power input ends C of relay KZ2.
The advantages of the utility model patent, is:This phase-change switch module reduces the commutation time, by the commutation time by 300ms
Control realizes user side and does not power off commutation within 10ms.
The utility model patent simplifies the requirement to controlling signal, at any time commutation, it is ensured that only one it is connected,
Improve the safety and reliability of commutation.
Description of the drawings
Attached drawing 1 is a kind of phase-change switch modular structure figure
Attached drawing 2 is that a kind of phase-change switch module A phase turns C phase on off state figures
Attached drawing 3 is a kind of phase-change switch module system wiring schematic diagram
Specific implementation mode
A kind of phase-change switch module, structure chart is as shown in Figure 1, its structure includes:2 one dynamic two fixed contact magnetic keep relay
Device KZ1, KZ2 and its connection line;The fixed contact KZ11 connection three-phase power input end A of magnetic latching relay KZ1, magnetic are kept
The fixed contact KZ12 connection magnetic of single-phase load the output end L, KZ1 of the movable contact KZ10 connection phase-change switch modules of relay KZ1
Fixed contact KZ21 connections the three-phase power input end B, magnetic latching relay KZ2 of the movable contact KZ20, KZ2 of guard relay KZ2
Fixed contact KZ22 connection three-phase power input ends C.
A kind of phase-change switch module, when on off state single-phase load output end L and A is connected, KZ10 and KZ11 is connected, L
It is disconnected with B phases, L and C phases, as shown in Figure 1
A kind of phase-change switch module A phase turns C phase on off state figures as shown in Fig. 2, KZ2 is first by movable contact KZ20 from KZ21 points
It is disconnected, then be closed with KZ22, C phases are connected, then movable contact KZ10 and KZ11 disjunctions are closed KZ12, complete single-phase load by KZ1
Output end L is transferred to C phases from the A phases of three phase mains.
A kind of phase-change switch module system wiring schematic diagram is as shown in figure 3, A, B, C points of the input terminal of its phase-change switch module
It is not connected to A, B, C phase line of three phase mains, single-phase load output end L order phase loads, controller is by CT from three phase mains
Sampling, judges whether the size of A, B, C three-phase current balances, and sends out pulse signal in phase-change switch module, magnetic keep after
The coil KZ1 or KZ2 of electric appliance, the on-position of adjustment movable contact KZ10 and KZ20, the single-phase load output end L difference to make
It is connected to A phases, B phases, C phases realize commutation power supply, balanced three-phase load.
The utility model patent unspecified part belongs to technology well known to those skilled in the art.
Claims (1)
1. a kind of phase-change switch module, it is characterised in that:Including 2 one dynamic two fixed contact magnetic latching relay KZ1, KZ2, and its
Connection line;The dynamic of fixed contact KZ11 connections the three-phase power input end A, magnetic latching relay KZ1 of magnetic latching relay KZ1 touches
The fixed contact KZ12 connection magnetic latching relays KZ2's of single-phase load the output end L, KZ1 of point KZ10 connection phase-change switch modules
The fixed contact KZ22 connections of fixed contact KZ21 connections the three-phase power input end B, magnetic latching relay KZ2 of movable contact KZ20, KZ2
Three-phase power input end C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820488627.XU CN208001161U (en) | 2018-03-29 | 2018-03-29 | A kind of phase-change switch module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820488627.XU CN208001161U (en) | 2018-03-29 | 2018-03-29 | A kind of phase-change switch module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208001161U true CN208001161U (en) | 2018-10-23 |
Family
ID=63839366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820488627.XU Active CN208001161U (en) | 2018-03-29 | 2018-03-29 | A kind of phase-change switch module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208001161U (en) |
-
2018
- 2018-03-29 CN CN201820488627.XU patent/CN208001161U/en active Active
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