CN205725695U - Three-phase switching switch - Google Patents
Three-phase switching switch Download PDFInfo
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- CN205725695U CN205725695U CN201620368651.0U CN201620368651U CN205725695U CN 205725695 U CN205725695 U CN 205725695U CN 201620368651 U CN201620368651 U CN 201620368651U CN 205725695 U CN205725695 U CN 205725695U
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- normally
- phase
- open
- switch
- close
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Abstract
This utility model relates to disclosing a kind of three-phase switching switch, the three phase mains being mainly used in electrical network is converted to single phase poaer supply, comprising: handover module, switch module, handover module includes one-level normally-open normally-close relay J DQ1, two grades of normally-open normally-close relay J DQ2, and switch module includes controlling normally-open normally-close relay J DQ3, controllable silicon SCR 1.Handover module can in being switched fast three-phase any phase, and stop between each phase produce short circuit.Switch module can make three-phase switching switch quickly switch and not produce sintering and adhesion.Arbitrary phase that this utility model can be switched fast in three-phase is single phase poaer supply, realizes miniaturization and intellectuality on the premise of improving reliability of operation and stability.
Description
Technical field
This utility model relates to field of power transmission, particularly relates to a kind of three-phase converting switch device.
Background technology
In current building are for electrical domain, three-phase switched single-phase behavior needs the wanting three split-phases to open of prior art
Close and just can complete wiring load with a combination switch, operation the most more inconvenience is installed, easily produces burning when each switching manipulation
Knot and adhesion, and the operation switched is more, so switching cannot be quickly carried out.
Owing to the component number needed for this technology is many, causing the possible breakdown point in system to increase, what reduction ran can
By property, the most also produce higher construction cost and O&M cost, be also unfavorable for the miniaturization of system.
This technology by size of current be divided into small area analysis intelligent switch (below 90A) and big current intelligent switch (200A with
On)；Both switches are respectively arranged with pluses and minuses: small area analysis intelligent switch advantage is that volume is little, easy for installation；Shortcoming is that electric current is little, has
The phenomenon of sintering；Big current intelligent switching benefits is that pitch capability is strong, and shortcoming is that volume is big, needs to control voltage high；So should
Technology easily produces the phenomenon that sintering damages under the miniaturization occasion realizing big electric current.
Each switch still cannot be carried out planning as a whole to run thus realize intelligentized control method by this technology at present, it is impossible to fully land productivity
Use power network resources.
Utility model content
Described by this utility model is a kind of three-phase switching switch, its principle as it is shown in figure 1, this switch utilize normally opened often
Close the handover module that relay is formed, it is achieved the optional phase of three-phase forms single-phase electricity and stops to cause circuit short among folding
Road, it is achieved the miniaturization of switching.
And this switch has by the switch module of controllable silicon Yu normally-open normally-close relay assembly, this module can realize greatly
Being switched fast of electric current and prevent sintering.
The combination of handover module and switch module can realize arbitrarily selecting switching and preventing between the three-phase of three-phase electricity
The relay that the access of big electric current causes sinters and adhesion.
This switch element simplifies compact conformation, and the reliability being effectively improved switching the most also reduces construction cost.
The handover module of this switch can be linked by external control system with switch module, by overall planning
Arrange that the intelligent load realizing electrical network is automatically adjusted.
A kind of three-phase switching switch described by this utility model, switches to single-phase electricity to access load for three-phase electricity, its
Be characterised by: it includes handover module, switch module: the input of described handover module connects the three-phase of three-phase electricity, described in cut
The input of the outfan connecting valve module of die change block；The outfan of switch module accesses load；The ground wire of three-phase electricity connects
Load.
Further, described three-phase switching switch, it is characterised in that: described handover module includes that one-level normally-open normally-close continues
Electrical equipment JDQ1, two grades of normally-open normally-close relay J DQ2；
The input of described handover module be two stationary contacts of described one-level normally-open normally-close relay J DQ1, described two grades
One of them stationary contact of normally-open normally-close relay J DQ2；
Another stationary contact of described two grades of normally-open normally-close relay J DQ2 connects described one-level normally-open normally-close relay
The movable contact of JDQ1；
The outfan that movable contact is handover module of described two grades of normally-open normally-close relay J DQ2.
Further, described three-phase switching switch, it is characterised in that: described switch module includes that controlling normally-open normally-close continues
Electrical equipment JDQ3, controllable silicon SCR 1；
One stationary contact of described control normally-open normally-close relay J DQ3 is the input of switch module；
The outfan that movable contact is switch module of described control normally-open normally-close relay J DQ3；
The input of the two poles of the earth bridge switch module of described controllable silicon SCR 1, the outfan of switch module.
Further, described three-phase switching switch, it is characterised in that: described one-level normally-open normally-close relay J DQ1, two
Level normally-open normally-close relay J DQ2 selects 200 amperes of normally-open normally-close relays.
Further, described three-phase switching switch, it is characterised in that: described control normally-open normally-close relay J DQ3 is selected
200 amperes of normally-open normally-close relays.
After using above scheme, the three-phase switching switch described by this utility model compared with prior art, has following
Advantage:
1. the handover module of this switch uses one-level normally-open normally-close relay J DQ1 and two grades of normally-open normally-close relay J DQ2
Classification connect and realize the selection to arbitrary phase of three-phase electricity, and have the short circuit having stopped between three-phase.
2. the switch module of this switch realizes accessing single-phase electricity the control of load, normally opened with control by controllable silicon SCR 1
The parallel connection of normally closed relay JDQ3, reaches, when big electric current accesses or exits, to utilize the control to controllable silicon SCR 1 to form bypass
Electric current is shunted thus protects control normally-open normally-close relay J DQ3 to prevent sintering and adhesion when big electric current accesses by circuit.
3. this switch is handover module and switch module cooperative cooperating when, can play and prevent on three-phase switching switch
The sintering of arbitrary relay and adhesion, it is achieved that quickly make-break capacity.
4. this switch is compared with prior art, greatly reduces element usage amount, compared with prior art uses compact conformation
The advantage such as simple and reliable, and more easily realize miniaturization.
5. this switch can outer connected control system；When carrying out several these switches planning as a whole to run, can reach entirety
The Intelligent adjustment of the load of power supply grid, is conducive to the work effectively utilizing and producing protection electrical network general safety to power network resources
With.
Being a kind of compact conformation and quick on-off can have networking control energy in big electric current described by this utility model
The three-phase electricity switching single-phase electricity switch of power.
Accompanying drawing explanation
Fig. 1 is that this three-phase switches on-off principle figure；
Fig. 2 is that this three-phase switches on-off circuit figure.
Detailed description of the invention
In order to be illustrated more clearly that this utility model, below in conjunction with preferred embodiments and drawings to essence of the present utility model
Property feature is further described.Parts similar in accompanying drawing are indicated with identical reference, those skilled in the art
Should be appreciated that following specifically described content is illustrative and be not restrictive, not herein shall so limit this utility model
Protection domain.
As in figure 2 it is shown, disclosed by this utility model be a kind of three-phase switching switch, it includes handover module, switching molding
Block, described handover module includes one-level normally-open normally-close relay J DQ1, two grades of normally-open normally-close relay J DQ2, described switch module
Including controlling normally-open normally-close relay J DQ3, controllable silicon SCR 1.
Handover module circuit in this utility model is as follows: the A phase B phase of three-phase electricity connects one-level normally-open normally-close relay respectively
Two stationary contacts of device JDQ1, C is connected one of them stationary contacts of two grades of normally-open normally-close relay J DQ2；Two grades of normally-open normally-closes
Another stationary contact of relay J DQ2 connects the movable contact of one-level normally-open normally-close relay J DQ1；Two grades of normally-open normally-close relays
The input of the movable contact connecting valve module of JDQ2.This design function mode is: one-level normally-open normally-close relay J DQ1 physics
A phase and B phase are isolated, two grades of normally-open normally-close relay J DQ2 physical isolation C phase and A phase, B phase；The most no matter above-mentioned two
Normally-open normally-close relay is in of which kind of linking status, the most only three-phase electricity mutually can be defeated from the outfan of handover module
Go out, obtain the beneficial effect mistake stopping to produce short circuit between each phase.
The circuit of the switch module in this utility model is as follows: control a stationary contact of normally-open normally-close relay J DQ3 even
Connect the input of switch module；Control the outfan of the movable contact connecting valve module of normally-open normally-close relay J DQ3, controllable silicon
SCR1 is in parallel with controlling normally-open normally-close relay J DQ3.The function mode of this design is: when needs are to controlling normally-open normally-close relay
When device JDQ3 turns off operation, first connect controllable silicon SCR 1 and form the bypass circuit of electric current, when controlling normally-open normally-close relay
After the opening operation of JDQ3 completes, then control controllable silicon SCR 1 and disconnect bypass circuit；When needs are to controlling normally-open normally-close relay
When JDQ3 carries out access operation, first connect controllable silicon SCR 1 and form the bypass circuit of electric current, when controlling normally-open normally-close relay
After the access operation of JDQ3 completes, then control controllable silicon SCR 1 and disconnect bypass circuit.The operation principle of this design is to utilize unit's device
The characteristics design of part: controllable silicon SCR 1 has the ability of quick on-off, it is impossible to long-time big current work, heating easily burns out, and continues
Electrical equipment quick on-off useless ability, can work long hours, the easy adhesion of quick on-off relay and sintering；Therefore by controllable silicon
SCR1 manufactures interim by-pass current and shunts electric current, ensures that relay operates when a low current thus anti-
Only adhesion and the generation of sintering.Switch module can realize quickly accessing big electric current, and can be effective in life-time service
Protective relay, thus increase the reliability of system, reduce operating cost.
Handover module of the present utility model is as follows with the cooperative mode of switch module: switch module is responsible for the connection of circuit,
Handover module is responsible for the selection of phase place, uses such that it is able to make to be supported on fast and reliable ground any switching laws one phase between three-phase.
Relay prioritizing selection 200A normally-open normally-close relay selected in this utility model, more can ensure this practicality
Novel operate steadily in the long term in the case of quick on-off.Prior art is compared, and this utility model decreases the parts number of use
Amount, structure is compacter, thus reduces cost, is greatly improved stability and the reliability of operation.
One-level normally-open normally-close relay J DQ1 of this three-phase switching switch, two grades of normally-open normally-close relay J DQ2, often control
Open normally closed relay JDQ3, controllable silicon SCR 1 in addition to manual operation, it is also possible to outer connected control system operates.By several
Utility model carries out networking and uses in a unified manner, and the data that can realize running the whole network by external controller are comprehensively determined
Plan, thus determine that each three-phase switching switch accesses the phase place of electrical network, arrive balancing power network load and realize network load Intelligent adjustment
Function.
Below only most preferred embodiment of the present utility model is described, but is not to be construed as the limit to claim
System.This utility model is not limited only to above example, and its concrete structure allows to change.In every case in this utility model rights to independence
The various changes made in the protection domain that profit requires are all in protection domain of the present utility model.
Claims (5)
1. a three-phase switching switch, switches to single-phase electricity to access load for three-phase electricity, it is characterised in that: it includes switching mould
Block, switch module: the input of described handover module connects the three-phase of three-phase electricity, the outfan connecting valve of described handover module
The input of module；The outfan of switch module accesses load；The ground wire of three-phase electricity connects load.
Three-phase the most according to claim 1 switching switch, it is characterised in that: described handover module includes one-level normally-open normally-close
Relay (JDQ1), two grades of normally-open normally-close relays (JDQ2)；
The input of described handover module be described one-level normally-open normally-close relay (JDQ1) two stationary contacts, described two grades often
Open one of them stationary contact of normally closed relay (JDQ2)；
Another stationary contact of described two grades of normally-open normally-close relays (JDQ2) connects described one-level normally-open normally-close relay
(JDQ1) movable contact；
The outfan that movable contact is handover module of described two grades of normally-open normally-close relays (JDQ2).
Three-phase the most according to claim 1 switching switch, it is characterised in that: described switch module includes controlling normally-open normally-close
Relay (JDQ3), controllable silicon (SCR1)；
One stationary contact of described control normally-open normally-close relay (JDQ3) is the input of switch module；
The outfan that movable contact is switch module of described control normally-open normally-close relay (JDQ3)；
The input of the two poles of the earth bridge switch module of described controllable silicon (SCR1), the outfan of switch module.
Three-phase the most according to claim 2 switching switch, it is characterised in that: described one-level normally-open normally-close relay
(JDQ1), two grades of normally-open normally-close relays (JDQ2) select 200 amperes of normally-open normally-close relays.
Three-phase the most according to claim 3 switching switch, it is characterised in that: described control normally-open normally-close relay (JDQ3)
Select 200 amperes of normally-open normally-close relays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620368651.0U CN205725695U (en) | 2016-04-27 | 2016-04-27 | Three-phase switching switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620368651.0U CN205725695U (en) | 2016-04-27 | 2016-04-27 | Three-phase switching switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205725695U true CN205725695U (en) | 2016-11-23 |
Family
ID=57291170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620368651.0U Expired - Fee Related CN205725695U (en) | 2016-04-27 | 2016-04-27 | Three-phase switching switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205725695U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448600A (en) * | 2018-03-30 | 2018-08-24 | 杭州海兴电力科技股份有限公司 | Commutation system suitable for three phase network |
| CN108448599A (en) * | 2018-03-30 | 2018-08-24 | 杭州海兴电力科技股份有限公司 | Phase change method based on the commutation system suitable for three phase network |
-
2016
- 2016-04-27 CN CN201620368651.0U patent/CN205725695U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448600A (en) * | 2018-03-30 | 2018-08-24 | 杭州海兴电力科技股份有限公司 | Commutation system suitable for three phase network |
| CN108448599A (en) * | 2018-03-30 | 2018-08-24 | 杭州海兴电力科技股份有限公司 | Phase change method based on the commutation system suitable for three phase 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: 20161123 Termination date: 20170427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |