CN204928180U - Three phase load automatic balance change over switch - Google Patents
Three phase load automatic balance change over switch Download PDFInfo
- Publication number
- CN204928180U CN204928180U CN201520719931.7U CN201520719931U CN204928180U CN 204928180 U CN204928180 U CN 204928180U CN 201520719931 U CN201520719931 U CN 201520719931U CN 204928180 U CN204928180 U CN 204928180U
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- phase
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- utility
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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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Abstract
The utility model provides a three phase load automatic balance change over switch, the problem that solve is: reduce the use quantity of silicon controlled rectifier, the utility model discloses a main points are: a relay concatenates on every main circuit of supplying power mutually, it still includes two parallelly connected switching circuits, and is parallelly connected with the three phase power supply main circuit, every switching circuit is established ties and is constituteed by a pair of silicon controlled rectifier inverse parallel or bidirectional thyristor, a select switch group, and select switch group is connected in parallel by A looks, the mutually three select switch of B congruence C and constitutes, and every looks select switch's the other end is received on the power supply main circuit of corresponding looks. The utility model discloses an actively the effect is: the silicon controlled rectifier has lacked, and the circuit is simple, and the reliability has improved. The cost has also reduced simultaneously, is favorable to promoting and using.
Description
Technical field
The utility model relates to the problem of low-voltage network user side three-phase imbalance, specifically low-voltage network user side three-phase load autobalance diverter switch.
Background technology
CN103795076A discloses a kind of commutation device of three-phase load autobalance, employs six controllable silicons in this commutation device altogether.Because controllable silicon cost is higher, when promoting the use of, Cost Problems just shows especially out, hinders and promotes and use.
Summary of the invention
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of three-phase load autobalance diverter switch
The purpose of this utility model is achieved in that it comprises three phase supply main circuit, it is characterized in that: a serial connection magnetic latching relay (hereinafter referred to as relay) on every main circuit of powering mutually; It also comprises two commutation circuits in parallel, in parallel with three phase supply main circuit; Each commutation circuit is composed in series by a pair controllable silicon inverse parallel or bidirectional triode thyristor, a selector switch group, and selector switch group is composed in parallel by A phase, B phase and C phase three selector switches, and the other end of every phase selector switch is received on the power supply main circuit of corresponding phase.
The utility model handoff procedure is as follows:
When supposing to start, A phase is powered, and needs load switching to B phase.
A phase connected by the A phase selector switch of the first commutation circuit, and B phase connected by the B phase selector switch of the second commutation circuit.Trigger the controllable silicon of the first commutation circuit, disconnect main circuit A phase relay, electric current is by the controllable silicon supply user through the first commutation circuit.
Turn off the controllable silicon of the first commutation circuit, the controllable silicon of conducting second commutation circuit.The B phase relay of conducting main circuit.User changes B phase into and powers.Stop triggering controllable silicon, finishing switching.
Compared with CN103795076A, good effect of the present utility model is: controllable silicon has lacked, and circuit is simple, and reliability improves.Cost also reduces simultaneously, is conducive to promoting and using.
Accompanying drawing explanation
The utility model is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is schematic diagram of the present utility model.
Embodiment
See Fig. 1, it comprises three phase supply main circuit, and a serial connection relay on every main circuit of powering mutually is relay J Ma, relay J Mb, relay J Mc respectively; It also comprises two commutation circuits in parallel, in parallel with three phase supply main circuit; Each commutation circuit is composed in series by a pair controllable silicon inverse parallel and selector switch group, selector switch group is composed in parallel by A phase, B phase and C phase three selector switches, a pair controllable silicon of the first commutation circuit is controllable silicon KP11 and controllable silicon KP12 inverse parallel, three selector switches in parallel are respectively A phase selector switch J1a, B phase selector switch J1b and C phase selector switch J1c, and the other end of every phase selector switch is received on the power supply main circuit of corresponding phase; A pair controllable silicon of the second commutation circuit is controllable silicon KP21 and controllable silicon KP22 inverse parallel, three selector switches in parallel are respectively A phase selector switch J2a, B phase selector switch J2b and C phase selector switch J2c, and the other end of every phase selector switch is received on the power supply main circuit of corresponding phase.
The utility model handoff procedure is as follows:
When supposing to start, A phase is powered, and needs load switching to B phase.
A phase connected by the A phase selector switch of the first commutation circuit, and B phase connected by the B phase selector switch of the second commutation circuit.Trigger the controllable silicon of the first commutation circuit, disconnect main circuit A phase relay, electric current is by the controllable silicon supply user through the first commutation circuit.
Turn off the controllable silicon of the first commutation circuit, the controllable silicon of conducting second commutation circuit.The B phase relay of conducting main circuit.User changes B phase into and powers.Stop triggering controllable silicon, finishing switching.
By this diverter switch and intelligent electric meter integrated, making can the intelligent electric meter of balanced load.
Electric current on diverter switch circuit or voltage, by the single-chip microcomputer perception of ammeter, according to the order preset, drive relay or controllable silicon, complete the switching of load.
Claims (1)
1. a three-phase load autobalance diverter switch, it comprises three phase supply main circuit, it is characterized in that: a serial connection relay on every main circuit of powering mutually; It also comprises two commutation circuits in parallel, in parallel with three phase supply main circuit; Each commutation circuit is composed in series by a pair controllable silicon inverse parallel or bidirectional triode thyristor, a selector switch group, and selector switch group is composed in parallel by A phase, B phase and C phase three selector switches, and the other end of every phase selector switch is received on the power supply main circuit of corresponding phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520719931.7U CN204928180U (en) | 2015-09-17 | 2015-09-17 | Three phase load automatic balance change over switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520719931.7U CN204928180U (en) | 2015-09-17 | 2015-09-17 | Three phase load automatic balance change over switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204928180U true CN204928180U (en) | 2015-12-30 |
Family
ID=54977278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520719931.7U Expired - Fee Related CN204928180U (en) | 2015-09-17 | 2015-09-17 | Three phase load automatic balance change over switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204928180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091978A (en) * | 2022-08-01 | 2022-09-23 | 哈尔滨理工大学 | High-power wireless transmission device and method for electric automobile |
-
2015
- 2015-09-17 CN CN201520719931.7U patent/CN204928180U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091978A (en) * | 2022-08-01 | 2022-09-23 | 哈尔滨理工大学 | High-power wireless transmission device and method for electric automobile |
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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: 20151230 Termination date: 20200917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |