CN205453109U - Two line user phasing switch devices of low pressure - Google Patents
Two line user phasing switch devices of low pressure Download PDFInfo
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- CN205453109U CN205453109U CN201620151119.3U CN201620151119U CN205453109U CN 205453109 U CN205453109 U CN 205453109U CN 201620151119 U CN201620151119 U CN 201620151119U CN 205453109 U CN205453109 U CN 205453109U
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- 230000005611 electricity Effects 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 abstract description 4
- 239000004020 conductor Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
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Abstract
(B, ) the utility model relates to termination technical field is a two line user phasing switch devices of low pressure which comprises bus N extremely work a telephone switchboard end, user N extremely work a telephone switchboard end, DC power supply and the single -phase switching components of three groups corresponds single -phase switching group of every group and all is equipped with with it corresponding single -phase incoming end of switching signal input, user and bus wiring end, and bus N extremely works a telephone switchboard end and user N and extremely works a telephone switchboard the end electricity and link together, the single -phase switching components of every group all includes electromagnetic relay and triode. The utility model has the advantages of reasonable and compact structure, it is through the cooperation of triode and electromagnetic relay, can three phase current is asymmetric to be exceeded when critical appearing, and make corresponding electromagnetic relay's coil electrically conduct through control signal generator and triode, and then completion commutation process, easy operation is convenient, and labour saving and time saving, and can realize fast that the three -phase switches effectively avoids causing the loss high because of the operation in -process has asymmetric current, problem that voltage quality is poor. (B, )
Description
Technical field
This utility model relates to termination technical field, is a kind of low pressure two line user's phasing switch device.
Background technology
Often there is loss height, the problem of quality of voltage difference in the low-voltage distribution netting twine in part rural area at present, causes the influence factor of the problems referred to above a lot, and wherein asymmetric operation is one of principal element.Due to the existence of asymmetric electric current, power attenuation certainly will be caused on zero line, thus cause total losses to increase.The principal element that asymmetric operation causes loss to increase has: the ratio that 1. out-of-balance load capacity is shared in total capacity, the 2. size of neutral conductor conductor cross-section, the 3. position of single-phase load tie-point, 4. single-phase-two-wire power supply mode.
Under the overall background of upgrading of rural power grids upgrading, rural low voltage network is by universal three-phase and four-line insulation arrangement, it is only domestic consumer's access single phase poaer supply in side, lower family by two lines, there is the problem that cannot realize three-phase switching in it, this phenomenon that three-phase and four-line electricity consumption will be caused to there is asymmetric electric current, the loss causing distribution netting twine is the most high, spread of voltage.
Summary of the invention
This utility model provides a kind of low pressure two line user's phasing switch device, overcome the deficiency of above-mentioned prior art, its can effectively solve existing three-phase and four-line distribution netting twine exist only have access single phase poaer supply, three-phase switching cannot be realized, asymmetric electric current is had in running, cause loss height, the problem of quality of voltage difference.
The technical solution of the utility model is realized by following measures: a kind of low pressure two line user's phasing switch device, including bus N pole terminals, user N pole terminals, DC source and three groups of single-phase changeover modules, correspondence is often organized single-phase switch groups and is equipped with corresponding switching signal input, the single-phase incoming end of user and bus terminals end, and bus N pole terminals are electrically connected with user N pole terminals；Often organize single-phase changeover module and all include electromagnetic relay and audion, electromagnetic relay includes coil the first terminals, the second winding wiring, moving contact switch the first terminals, the second moving contact switch terminals and movable contact snap switch, moving contact switch the first terminals incoming end single-phase with corresponding user is electrically connected, second moving contact switch terminals are electrically connected with corresponding bus terminals end, having one in three movable contact snap switches is normally closed switch, and other two is normal open switch；Audion is provided with base stage, collector and emitter, each base stage is all electrically connected with corresponding switching signal input, each emitter stage is all electrically connected with corresponding coil the first terminals, each second winding wiring is all electrically connected by wire and forms winding wiring tuberosity, and each colelctor electrode is all electrically connected by wire and forms current collection tuberosity；Current collection tuberosity and winding wiring tuberosity positive pole and negative electricity with DC source respectively links together.
Further optimization and/or improvements to above-mentioned utility model technical scheme are presented herein below:
Normally closed protection switch can be in series with between above-mentioned bus N pole terminals and user N pole terminals.
Above-mentioned current collection tuberosity can link together with the positive electrical of DC source, and winding wiring tuberosity links together with the negative electricity of DC source.
This utility model reasonable and compact in structure, it is coordinated by audion and electromagnetic relay, the coil of corresponding electromagnetic relay can be made by control signal generator and audion to conduct electricity when occurring that three-phase current is asymmetric and exceeding critical, and then complete commutation process；Simple to operation, time saving and energy saving, and can quickly realize three-phase switching, it is prevented effectively from because running has asymmetric electric current, causes loss height, the problem of quality of voltage difference；Manual operating signal generator can be used in use, or automatically control by signal generator being connected on terminal handler realization, be achieved in remote control.
Accompanying drawing explanation
Accompanying drawing 1 uses the circuit block diagram of state for this utility model most preferred embodiment.
Coding in accompanying drawing is respectively as follows: 1 for bus N pole terminals, 2 is user N pole terminals, 3 is DC source, 4 is switching signal input, 5 is the single-phase incoming end of user, 6 is bus terminals end, 7 is electromagnetic relay, 8 is audion, 9 is coil the first terminals, 10 is coil the second terminals, 11 is normally closed protection switch, 12 is moving contact switch the first terminals, 13 is moving contact switch the second terminals, 14 is movable contact snap switch, 15 is winding wiring tuberosity, 16 is current collection tuberosity, 17 is three-phase and four-line distribution netting twine, 18 is user side, 19 is signal generator.
Detailed description of the invention
This utility model is not limited by following embodiment, can determine specific embodiment according to the technical solution of the utility model and practical situation.
In this utility model, for the ease of describing, the description of the relative position relation of each parts is all that the Butut mode according to Figure of description 1 is described, such as: the position relationship of forward and backward, upper and lower, left and right etc. is based on the Butut direction of Figure of description and determines.
Below in conjunction with embodiment and accompanying drawing, this utility model is further described:
As shown in Figure 1, this low pressure two line user's phasing switch device, including bus N pole terminals 1, user N pole terminals 2, DC source 3 and three groups of single-phase changeover modules, correspondence is often organized single-phase switch groups and is equipped with corresponding switching signal input 4, the single-phase incoming end of user 5 and bus terminals end 6, and bus N pole terminals 1 are electrically connected with user N pole terminals 2；Often organize single-phase changeover module and all include electromagnetic relay 7 and audion 8, electromagnetic relay 7 includes coil the first terminals 9, coil the second terminals 10, moving contact switch the first terminals 12, moving contact switch the second terminals 13 and movable contact snap switch 14, moving contact switch the first terminals 12 incoming end single-phase with corresponding user 5 is electrically connected, moving contact switch the second terminals 13 are electrically connected with corresponding bus terminals end 6, having one in three movable contact snap switches 14 is normally closed switch, and other two is normal open switch；Audion 8 is provided with base stage, collector and emitter, each base stage is all electrically connected with corresponding switching signal input 4, each emitter stage is all electrically connected with corresponding coil the first terminals 9, each coil second terminals 10 are all electrically connected by wire and form winding wiring tuberosity 15, and each colelctor electrode is all electrically connected by wire and forms current collection tuberosity 16；Current collection tuberosity 16 and winding wiring tuberosity 15 positive pole and negative electricity with DC source 3 respectively links together.In use, by three bus terminals ends 6, A phase line, B phase line and C phase line with three-phase and four-line distribution netting twine 17 is electrically connected respectively, the N phase line of bus N pole terminals 1 with three-phase and four-line distribution netting twine 17 is electrically connected, three single-phase incoming ends of user 5 and user N pole terminals 2 are all accessed user side 18, three switching signal inputs 4 are electrically connected with signal generator 19 respectively；Owing to three movable contact snap switches 14 having one for normally closed switch, other two is normal open switch, the single-phase incoming end of user 5 and the bus terminals end 6 of corresponding normally closed switch turn on, i.e. one of them phase line of the three-phase and four-line distribution netting twine 17 of this bus terminals end 6 correspondence is that user side 18 is powered, when occurring that three-phase current is asymmetric and exceeding critical, the coil of corresponding electromagnetic relay 7 can be made to conduct electricity by control signal generator 19 and audion 8, and then make former normally closed switch disconnect, and make correspondence treat the normal open switch Guan Bi of commutation, thus can complete commutation process；Simple to operation, time saving and energy saving, and can quickly realize three-phase switching, it is prevented effectively from because running has asymmetric electric current, causes loss height, the problem of quality of voltage difference；Manual operating signal generator 19 can be used in use, or automatically control by signal generator 19 being connected on terminal handler realization, this utility model thus can be made to realize remote control.
According to actual needs above-mentioned low pressure two line user's phasing switch device can be made further optimization and/or improvements:
As shown in Figure 1, it is in series with normally closed protection switch 11 between bus N pole terminals 1 and user N pole terminals 2.In use, normally closed protection switch 11 can be opened when there being emergency case to need power-off, so can improve its safety used.
As shown in Figure 1, current collection tuberosity 16 links together with the positive electrical of DC source 3, and winding wiring tuberosity 15 links together with the negative electricity of DC source 3.
Above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger adaptability and optimal implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (4)
1. low pressure two line user's phasing switch device, it is characterized in that including bus N pole terminals, user N pole terminals, DC source and three groups of single-phase changeover modules, correspondence is often organized single-phase switch groups and is equipped with corresponding switching signal input, the single-phase incoming end of user and bus terminals end, and bus N pole terminals are electrically connected with user N pole terminals；Often organize single-phase changeover module and all include electromagnetic relay and audion, electromagnetic relay includes coil the first terminals, the second winding wiring, moving contact switch the first terminals, the second moving contact switch terminals and movable contact snap switch, moving contact switch the first terminals incoming end single-phase with corresponding user is electrically connected, second moving contact switch terminals are electrically connected with corresponding bus terminals end, having one in three movable contact snap switches is normally closed switch, and other two is normal open switch；Audion is provided with base stage, collector and emitter, each base stage is all electrically connected with corresponding switching signal input, each emitter stage is all electrically connected with corresponding coil the first terminals, each second winding wiring is all electrically connected by wire and forms winding wiring tuberosity, and each colelctor electrode is all electrically connected by wire and forms current collection tuberosity；Current collection tuberosity and winding wiring tuberosity positive pole and negative electricity with DC source respectively links together.
Low pressure two line user's phasing switch device the most according to claim 1, it is characterised in that be in series with normally closed protection switch between bus N pole terminals and user N pole terminals.
Low pressure two line user's phasing switch device the most according to claim 1, it is characterised in that current collection tuberosity links together with the positive electrical of DC source, and winding wiring tuberosity links together with the negative electricity of DC source.
Low pressure two line user's phasing switch device the most according to claim 2, it is characterised in that current collection tuberosity links together with the positive electrical of DC source, and winding wiring tuberosity links together with the negative electricity of DC source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620151119.3U CN205453109U (en) | 2016-02-29 | 2016-02-29 | Two line user phasing switch devices of low pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620151119.3U CN205453109U (en) | 2016-02-29 | 2016-02-29 | Two line user phasing switch devices of low pressure |
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| Publication Number | Publication Date |
|---|---|
| CN205453109U true CN205453109U (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620151119.3U Expired - Fee Related CN205453109U (en) | 2016-02-29 | 2016-02-29 | Two line user phasing switch devices of low pressure |
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| Country | Link |
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| CN (1) | CN205453109U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610134A (en) * | 2016-02-29 | 2016-05-25 | 国网新疆电力公司昌吉供电公司 | Low-voltage two-wire user phasing switch device |
-
2016
- 2016-02-29 CN CN201620151119.3U patent/CN205453109U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610134A (en) * | 2016-02-29 | 2016-05-25 | 国网新疆电力公司昌吉供电公司 | Low-voltage two-wire user phasing switch device |
| CN105610134B (en) * | 2016-02-29 | 2018-08-07 | 国网新疆电力公司昌吉供电公司 | Two line user's phasing switch device of low pressure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 |