CN102064601B - Double-power supply automatic switching device of pole top switch - Google Patents
Double-power supply automatic switching device of pole top switch Download PDFInfo
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- CN102064601B CN102064601B CN 201110033562 CN201110033562A CN102064601B CN 102064601 B CN102064601 B CN 102064601B CN 201110033562 CN201110033562 CN 201110033562 CN 201110033562 A CN201110033562 A CN 201110033562A CN 102064601 B CN102064601 B CN 102064601B
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Abstract
The invention relates to a double-power supply automatic switching device of a pole top switch, which is used for controlling the automatic switching of the pole top switch. The double-power supply automatic switching device of the pole top switch comprises a first switch switching control module and a second switch switching control module, wherein the first switch switching control module detects the voltage condition of a main power supply side power supply line by a first voltage detecting module; when the voltage of the main power supply side power supply line is lower than a preset threshold value, the first switch switching control module controls the pole top switch on the main power supply side power supply line to switch off; the second switch switching control module detects the voltage condition of a user load side power supply line by a second voltage detecting module; and when the voltage of the user load side power supply line is lower than a preset threshold value, the second switch switching control module controls the pole top switch on a backup power supply side power supply line to switch on. The embodiment of the invention can finish controllable automatic switching on the pole top switch on the main power supply side power supply line and/or backup power supply in a double-power supply power distributing scheme with further distance of a main power supply and a backup power supply, not only protects an important user load from the influence of unavailable normal power supply of the main power supply but also prevents the risks of expanded power failure range and overlong power failure time.
Description
Technical field
The present invention relates to field of power distribution, relate in particular to a kind of on-pole switch dual-power automatic switching device.
Background technology
In field of power distribution, on-pole switch is a kind of very common electric equipment.So-called on-pole switch refers to be arranged at the switchgear that is used for the control overhead current switching on the electric pole.At present, existing distribution system adopts the duplicate supply scheme of electric power more, is namely powered by the main power supply of transformer station under normal circumstances, when main power supply can't normal power supply, is powered by stand-by power supply; In this duplicate supply scheme of electric power, main power supply and stand-by power supply can not be the user load power supply simultaneously, otherwise can cause burning of controller switching equipment or user load.
Existing duplicate supply scheme of electric power comprises main power supply and stand-by power supply in the scheme of user load homonymy, and main power supply and stand-by power supply are in the scheme of user load both sides.For existing main power supply and the stand-by power supply scheme in the user load both sides, because main power supply and stand-by power supply are distant, main power supply side supply line can't know whether stand-by power supply side supply line connects, stand-by power supply side supply line can't know also whether main power supply side supply line connects, therefore, when main power supply can't normal power supply, the staff needs the scene to check position of failure point, on-the-spot switching on-pole switch, thereby make the short circuit of main power supply side supply line, stand-by power supply side supply line is connected be the user load power supply.
In the technique scheme, there are the following problems at least:
The first, when main power supply can't normal power supply, the on-pole switch of being located in the main power supply side supply line can't be finished separating brake automatically, if be in for a long time this state, then very easily causes the danger such as power supply unit damage, power failure range expansion.
Second, because on-pole switch needs artificial switching just can finish the power supply conversion, but not only there is security risk in artificial switching, and need to expend long time, this can greatly affect user's productive life, for some important user loads that can not cut off the power supply for a long time, might cause huge economic loss like this.
The 3rd, for because the distant duplicate supply scheme of electric power of main power supply and stand-by power supply, main power supply side supply line and stand-by power supply side supply line all are difficult to know the operating state of opposite end power supply, prior art can only be confirmed by manual type, if the staff slightly makes mistakes, then very easily main power supply and stand-by power supply are connected into simultaneously the supply line of user load, cause huge loss.
Summary of the invention
The embodiment of the invention provides a kind of on-pole switch dual-power automatic switching device; so that make stand-by power supply side supply line determine whether stand-by power supply side supply line should connect according to the operating state of user load side supply line; thereby realized in the distant duplicate supply scheme of electric power of main power supply and stand-by power supply, the on-pole switch on main power supply supply line and/or the stand-by power supply being carried out controlled automatic switching; not only protect the responsible consumer load to avoid the impact that main power supply can't normal power supply, and avoided power failure range expansion; the risk that interruption duration is long.
A kind of on-pole switch dual-power automatic switching device is used for control on-pole switch automatic switching, comprising: the first voltage detection module, the first switch on-off control module, second voltage detection module, second switch switching control module and power module;
The first switch on-off control module detects the voltage condition of main power supply side supply line by the first voltage detection module; When the voltage of finding main power supply side supply line was lower than predetermined bottom line value, the first switch on-off control module was controlled on-pole switch separating brake in the main power supply side supply line in predetermined power source in switching time;
Second switch switching control module detects the voltage condition of user load side supply line by the second voltage detection module; Be lower than predetermined bottom line value if find the voltage of user load side supply line, determine that then main power supply can't normal power supply, the on-pole switch that second switch switching control module is controlled in the stand-by power supply side supply line in predetermined power source switching time closes a floodgate, so that stand-by power supply is connected into the supply line of user load;
Power module is connected with the first voltage detection module, the first switch on-off control module, second voltage detection module and second switch switching control module, and provides electric energy for the first voltage detection module, the first switch on-off control module, second voltage detection module and second switch switching control module.
Preferably, corresponding predetermined power source comprises following at least one switching time: carry out the required time of electrical source exchange operation; Perhaps, carry out the preoperative stand-by period of electrical source exchange.
Preferably, carrying out accordingly the required time of electrical source exchange operation comprises following at least one:
The required time of on-pole switch separating brake in the first switch on-off control module control main power supply side supply line;
Perhaps,
On-pole switch in the second switch switching control module control stand-by power supply side supply line closes a floodgate the required time.
Preferably, carry out accordingly time or the self-defining time of staff that the preoperative stand-by period of electrical source exchange comprises that this device is given tacit consent to.
Preferably, corresponding the first voltage detection module and second voltage detection module comprise voltage transformer.
As seen from the above technical solution provided by the invention, the on-pole switch dual-power automatic switching device that the embodiment of the invention provides is by the first voltage transformer monitoring main power supply side supply line decompression first time, when monitoring the main power supply side supply line decompression first time, the on-pole switch automatic brake separating in the main power supply side supply line is located in the control of the first switch on-off control module; Second switch switching control module detects the voltage condition of user load side supply line by the second voltage detection module; Be lower than predetermined bottom line value if find the voltage of user load side supply line, determine that then main power supply can't normal power supply, the on-pole switch that second switch switching control module is controlled in the stand-by power supply side supply line in predetermined power source switching time closes a floodgate; Thereby make stand-by power supply side supply line determine whether stand-by power supply side supply line should connect according to the operating state of user load side supply line; thereby realized in the distant duplicate supply scheme of electric power of main power supply and stand-by power supply, the on-pole switch on main power supply supply line and/or the stand-by power supply being carried out controlled automatic switching; not only protect the responsible consumer load to avoid the impact that main power supply can't normal power supply, and avoided power failure range expansion, the long risk of interruption duration.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The principle schematic of the on-pole switch dual-power automatic switching device that Fig. 1 provides for the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Below in conjunction with accompanying drawing the embodiment of the invention is described in further detail.
As shown in Figure 1, the on-pole switch dual-power automatic switching device that the embodiment of the invention provides, be used for control on-pole switch automatic switching, its concrete structure comprises: the first voltage detection module, the first switch on-off control module, second voltage detection module, second switch switching control module and power module;
The first switch on-off control module detects the voltage condition of main power supply side supply line by the first voltage detection module; When the voltage of finding main power supply side supply line was lower than predetermined bottom line value, the first switch on-off control module was controlled on-pole switch separating brake in the main power supply side supply line in predetermined power source in switching time;
Second switch switching control module detects the voltage condition of user load side supply line by the second voltage detection module; Be lower than predetermined bottom line value if find the voltage of user load side supply line, determine that then main power supply can't normal power supply, the on-pole switch that second switch switching control module is controlled in the stand-by power supply side supply line in predetermined power source switching time closes a floodgate, so that stand-by power supply is connected into the supply line of user load;
Power module is connected with the first voltage detection module, the first switch on-off control module, second voltage detection module and second switch switching control module, and provides electric energy for the first voltage detection module, the first switch on-off control module, second voltage detection module and second switch switching control module.
Wherein, corresponding the first voltage detection module and second voltage detection module can comprise voltage transformer of the prior art, corresponding voltage transformer can connect according to connection plan of the prior art, in order to detect the voltage condition of main power supply side supply line and/or user load side supply line.
Wherein, corresponding the first switch on-off control module and second switch switching control module can comprise logical circuit of the prior art, as long as voltage condition control on-pole switch separating brake and/or the combined floodgate that can obtain according to the first voltage detection module and/or second voltage detection module just can be used in the first switch on-off control module and second switch switching control module in the embodiment of the invention; For example of the prior art is the treatment circuit of core with processors such as single-chip microcomputer or ARM (ARM is the abbreviation of Advanced RISC Machines, is translated into advanced RISC machines) chips.
Wherein, predetermined bottom line value can comprise the liminal value that load can normally be moved accordingly, and when the magnitude of voltage of main power supply side supply line was lower than this value for the first time, main power supply side supply line is decompression for the first time.
Particularly, corresponding predetermined power source can comprise that carrying out electrical source exchange operates the required time switching time, perhaps, carries out at least one item of electrical source exchange in the preoperative stand-by period; When the main power supply side supply line decompression first time, this device can be carried out the electrical source exchange operation immediately, and this moment, predetermined power source just was the execution electrical source exchange required time of operation switching time; Carry out the electrical source exchange operation after also can waiting for a period of time, predetermined power source just was the execution preoperative stand-by period of electrical source exchange and carried out required both combinations of time of electrical source exchange operation switching time this moment again.Wherein, the corresponding execution electrical source exchange required time of operation can comprise the required time of on-pole switch separating brake in the first switch on-off control module control main power supply side supply line that determines by many experiments, perhaps, close a floodgate in the required time at least one of the on-pole switch in the second switch switching control module control stand-by power supply side supply line that determines by many experiments; The corresponding execution time or the self-defining time of staff that the preoperative stand-by period of electrical source exchange can comprise that this device is given tacit consent to.For example: when the main power supply side supply line decompression first time, in the preoperative stand-by period of execution electrical source exchange of this device busy personnel setting main power supply side supply line is carried out Real-Time Monitoring, if the voltage of main power supply side supply line is not less than predetermined bottom line value during this period of time always, show that then decompression only is incident for the first time, main power supply can normal power supply, need not to carry out the electrical source exchange operation; If the phenomenon of predetermined bottom line value appears being lower than in the voltage of main power supply side supply line during this period of time, show that then decompression is not incident for the first time, main power supply can not normal power supply, carries out immediately the electrical source exchange operation.
Further, when the first switch on-off control module is found main power supply side supply line for the first time during decompression, the first switch on-off control module is controlled on-pole switch separating brake in the main power supply side supply line in predetermined power source in switching time; Meanwhile, because main power supply side supply line is decompression for the first time, user load is decompression for the first time also, second switch switching control module detects for the first time decompression of user load by the second voltage detection module, then the on-pole switch controlled switching time in the stand-by power supply side supply line in predetermined power source of second switch switching control module closes a floodgate, so that stand-by power supply is connected into the supply line of user load.
Need to prove, above-mentioned each building block of this device can carry out wiring according to connection plan of the prior art.
As seen; the realization of apparatus of the present invention embodiment makes stand-by power supply side supply line determine whether stand-by power supply side supply line should connect according to the operating state of user load side supply line; thereby realized in the distant duplicate supply scheme of electric power of main power supply and stand-by power supply, the on-pole switch on main power supply supply line and/or the stand-by power supply being carried out controlled automatic switching; not only protect the responsible consumer load to avoid the impact that main power supply can't normal power supply, and avoided power failure range expansion, the long risk of interruption duration.
The above; only for the better embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (5)
1. on-pole switch dual-power automatic switching device, be used for control on-pole switch automatic switching, it is characterized in that, comprising: the first voltage detection module, the first switch on-off control module, second voltage detection module, second switch switching control module and power module;
The first switch on-off control module detects the voltage condition of main power supply side supply line by the first voltage detection module; When the voltage of finding main power supply side supply line was lower than predetermined bottom line value, the first switch on-off control module was controlled on-pole switch separating brake in the main power supply side supply line in predetermined power source in switching time;
Second switch switching control module detects the voltage condition of user load side supply line by the second voltage detection module; Be lower than predetermined bottom line value if find the voltage of user load side supply line, determine that then main power supply can't normal power supply, the on-pole switch that second switch switching control module is controlled in the stand-by power supply side supply line in predetermined power source switching time closes a floodgate, so that stand-by power supply is connected into the supply line of user load;
Power module is connected with the first voltage detection module, the first switch on-off control module, second voltage detection module and second switch switching control module, and provides electric energy for the first voltage detection module, the first switch on-off control module, second voltage detection module and second switch switching control module.
2. on-pole switch dual-power automatic switching device according to claim 1 is characterized in that, described predetermined power source comprises following at least one switching time:
Carry out the required time of electrical source exchange operation;
Perhaps,
Carry out the preoperative stand-by period of electrical source exchange.
3. on-pole switch dual-power automatic switching device according to claim 2 is characterized in that, the described execution electrical source exchange required time of operation comprises following at least one:
The required time of on-pole switch separating brake in the first switch on-off control module control main power supply side supply line;
Perhaps,
On-pole switch in the second switch switching control module control stand-by power supply side supply line closes a floodgate the required time.
4. according to claim 2 or 3 described on-pole switch dual-power automatic switching devices, it is characterized in that, the described preoperative stand-by period of execution electrical source exchange comprises time or the self-defining time of staff of this device acquiescence.
5. according to claim 1 and 2 or 3 described on-pole switch dual-power automatic switching devices, it is characterized in that, described the first voltage detection module and second voltage detection module comprise voltage transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110033562 CN102064601B (en) | 2011-01-30 | 2011-01-30 | Double-power supply automatic switching device of pole top switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110033562 CN102064601B (en) | 2011-01-30 | 2011-01-30 | Double-power supply automatic switching device of pole top switch |
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| Publication Number | Publication Date |
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| CN102064601A CN102064601A (en) | 2011-05-18 |
| CN102064601B true CN102064601B (en) | 2013-04-10 |
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| CN 201110033562 Active CN102064601B (en) | 2011-01-30 | 2011-01-30 | Double-power supply automatic switching device of pole top switch |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104037932A (en) * | 2014-05-28 | 2014-09-10 | 来安县新元机电设备设计有限公司 | Emergency power supply control circuit and emergency power supply control device |
| CN105471083B (en) * | 2015-11-25 | 2018-10-12 | 王钦普 | A kind of safety switching apparatus and method of power battery and battery simulator |
| CN106129972B (en) * | 2016-06-28 | 2019-08-06 | 南宁华供电力科技有限公司 | It is a kind of can two-parameter switchover operation protective relaying device |
| CN106207992B (en) * | 2016-07-28 | 2018-07-17 | 河北省电力建设调整试验所 | A kind of control method of the control system of fuse switch |
| CN108360907B (en) * | 2018-04-13 | 2024-03-22 | 国网冀北电力有限公司迁西县供电分公司 | 10kV line dual-power hand-in-hand connection structure and installation and use method thereof |
| CN110311466A (en) * | 2019-07-16 | 2019-10-08 | 武汉腾江电气制造有限公司 | Railway communication base station double power-supply system, control method, equipment and storage medium |
| CN115276245B (en) * | 2022-09-27 | 2022-12-30 | 北京合纵科技股份有限公司 | Column switch with automatic performance detection function |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319924A (en) * | 2000-02-02 | 2001-10-31 | 三菱电机株式会社 | Power source system switching device |
| CN1547305A (en) * | 2003-12-05 | 2004-11-17 | 清华大学 | Two circuit power supply intelligent noncontact switching device with automatic switching and hot reserve function |
| CN101728866A (en) * | 2008-10-21 | 2010-06-09 | 中兴通讯股份有限公司 | Device and method for realizing switching of power supply |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101079900B1 (en) * | 2007-10-31 | 2011-11-04 | 주식회사 케이티 | Static transfer switch device, power supply apparatus using the switch device and switching method thereof |
| TWI358189B (en) * | 2008-04-08 | 2012-02-11 | Delta Electronics Inc | Power conversion circuit for reducing power loss a |
-
2011
- 2011-01-30 CN CN 201110033562 patent/CN102064601B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319924A (en) * | 2000-02-02 | 2001-10-31 | 三菱电机株式会社 | Power source system switching device |
| CN1547305A (en) * | 2003-12-05 | 2004-11-17 | 清华大学 | Two circuit power supply intelligent noncontact switching device with automatic switching and hot reserve function |
| CN101728866A (en) * | 2008-10-21 | 2010-06-09 | 中兴通讯股份有限公司 | Device and method for realizing switching of power supply |
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