CN203504274U - Downhole dual-circuit power-supply circuit preventing impact on power grid - Google Patents
Downhole dual-circuit power-supply circuit preventing impact on power grid Download PDFInfo
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- CN203504274U CN203504274U CN201320512032.0U CN201320512032U CN203504274U CN 203504274 U CN203504274 U CN 203504274U CN 201320512032 U CN201320512032 U CN 201320512032U CN 203504274 U CN203504274 U CN 203504274U
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- circuit
- breaker
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- closed contact
- electrically connected
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Abstract
The utility model discloses a downhole dual-circuit power-supply circuit preventing impact on a power grid, and solves a technical problem that a conventional downhole dual-power circuit is liable to cause impact on the power grid. The circuit provided by the utility model comprises a liaison-breaker main contact disposed between the output end of a first-circuit-breaker main contact and the output end of a second-circuit-breaker main contact. Two power supply buses are respectively provided with a transformer. The first normally-closed contact of a liaison breaker is in parallel connection with the first normally-closed contact of a second circuit breaker, and then is in serial connection with a first-circuit-breaker closing button and a first-circuit-breaker closing coil, thereby forming a control loop of a first circuit breaker. The second normally-closed contact of the liaison breaker is in parallel connection with the first normally-closed contact of the first circuit breaker, and then is in serial connection with a second-circuit-breaker closing button and a second-circuit-breaker closing coil. The second normally-closed contact of the first circuit breaker is in parallel connection with the second normally-closed contact of the second circuit breaker, and then is in serial connection with a liaison-breaker closing button and a liaison-breaker closing coil. The circuit provided by the utility model is especially suitable to use in a well.
Description
Technical field
The present invention relates to a kind of two-way power-supplying circuit, particularly a kind of double loop power supply power supply circuits of underground mine use.
Background technology
At present, under coal mine, all use the circuit bringing onto load that supplies power with double circuit, each bus is respectively its load supplying, when wherein a road bus has a power failure, in order to make the load of its band, can normally work, generally, in total power distribution equipment of two sections of bussed supplies, interconnection switch is set, the load of the bus of power failure is connected on another road bus, when have a power failure power supply power transmission time, two-way power supply easily occurs sort circuit structure is same load supplying simultaneously, and line voltage is impacted, and makes network system unreliable, affect whole electric power system, also can cause damage to power distribution equipment.
Summary of the invention
The invention provides a kind of down-hole of avoiding the electrical network produce to impact circuit that supplies power with double circuit, solved the technical problem that existing down-hole two-supply circuit easily impacts electrical network.
The present invention solves above technical problem by the following technical programs:
Circuit supplies power with double circuit in a kind of down-hole of avoiding the electrical network produce to impact, comprise the first power supply buses, the second power supply buses, the first load and the second load, the input of the first circuit breaker main contact is electrically connected to the first power supply buses, on the output of the first circuit breaker main contact, be connected with the first load, the input of the second circuit breaker main contact is electrically connected to the second power supply buses, on the output of the second circuit breaker main contact, be connected with the second load, between the output of the first circuit breaker main contact and the output of the second circuit breaker main contact, be connected with network interconnecting circuit main contact, on the first power supply buses, be provided with the first transformer, an output of the first transformer is electrically connected to one end of the first breaker closing button, one end after the first normally-closed contact parallel connection of the first normally-closed contact of network interconnecting circuit and the second circuit breaker is electrically connected to the other end of the first breaker closing button, the other end after the first normally-closed contact parallel connection of the first normally-closed contact of network interconnecting circuit and the second circuit breaker is electrically connected to one end of the first breaker closing coil, and the other end of the first breaker closing coil is electrically connected to another output of the first transformer, on the second power supply buses, be provided with the second transformer, an output of the second transformer is electrically connected to one end of the second breaker closing button, one end after the first normally-closed contact parallel connection of the second normally-closed contact of network interconnecting circuit and the first circuit breaker is electrically connected to the other end of the second breaker closing button, the other end after the first normally-closed contact parallel connection of the second normally-closed contact of network interconnecting circuit and the first circuit breaker is electrically connected to one end of the second breaker closing coil, and the other end of the second breaker closing coil is electrically connected to another output of the second transformer, the input of system interconnection transformer is connected in parallel on the first power supply buses and the second power supply buses, an output of system interconnection transformer is electrically connected to one end of network interconnecting circuit switch knob, one end after the second normally-closed contact parallel connection of the second normally-closed contact of the first circuit breaker and the second circuit breaker is electrically connected to the other end of network interconnecting circuit switch knob, the other end after the second normally-closed contact parallel connection of the second normally-closed contact of the first circuit breaker and the second circuit breaker is electrically connected to one end of network interconnecting circuit closing coil, the other end of network interconnecting circuit closing coil is electrically connected to another output of system interconnection transformer.
The present invention has good stability, feature that reliability is high, has guaranteed the power supply safety under coal mine.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail:
Circuit supplies power with double circuit in a kind of down-hole of avoiding the bus produce to impact, comprise the first power supply buses 16, the second power supply buses 20, the first load 21 and the second load 22, the input of the first circuit breaker main contact 17 is electrically connected to the first power supply buses 16, on the output of the first circuit breaker main contact 17, be connected with the first load 21, the input of the second circuit breaker main contact 19 is electrically connected to the second power supply buses 20, on the output of the second circuit breaker main contact 19, be connected with the second load 22, between the output of the first circuit breaker main contact 17 and the output of the second circuit breaker main contact 19, be connected with network interconnecting circuit main contact 18, on the first power supply buses 16, be provided with the first transformer 5, an output of the first transformer 5 is electrically connected to one end of the first breaker closing button 1, one end after the first normally-closed contact 3 parallel connections of the first normally-closed contact 2 of network interconnecting circuit and the second circuit breaker is electrically connected to the other end of the first breaker closing button 1, the other end after the first normally-closed contact 3 parallel connections of the first normally-closed contact 2 of network interconnecting circuit and the second circuit breaker is electrically connected to one end of the first breaker closing coil 4, the other end of the first breaker closing coil 4 is electrically connected to another output of the first transformer 5, on the second power supply buses 20, be provided with the second transformer 15, an output of the second transformer 15 is electrically connected to one end of the second breaker closing button 11, one end after the first normally-closed contact 13 parallel connections of the second normally-closed contact 12 of network interconnecting circuit and the first circuit breaker is electrically connected to the other end of the second breaker closing button 11, the other end after the first normally-closed contact 13 parallel connections of the second normally-closed contact 12 of network interconnecting circuit and the first circuit breaker is electrically connected to one end of the second breaker closing coil 14, the other end of the second breaker closing coil 14 is electrically connected to another output of the second transformer 15, the input of system interconnection transformer 10 is connected in parallel on the first power supply buses 16 and the second power supply buses 20, an output of system interconnection transformer 10 is electrically connected to one end of network interconnecting circuit switch knob 6, one end after the second normally-closed contact 8 parallel connections of the second normally-closed contact 7 of the first circuit breaker and the second circuit breaker is electrically connected to the other end of network interconnecting circuit switch knob 6, the other end after the second normally-closed contact 8 parallel connections of the second normally-closed contact 7 of the first circuit breaker and the second circuit breaker is electrically connected to one end of network interconnecting circuit closing coil 9, the other end of network interconnecting circuit closing coil 9 is electrically connected to another output of system interconnection transformer 10.
When the first power supply buses 16 and the second power supply buses 20 normal power supplies, and network interconnecting circuit switch knob 6 is when off-state, the first breaker closing button 1 and the second breaker closing button 11 are on-state, because network interconnecting circuit switch knob 6 makes the first normally-closed contact 2 of network interconnecting circuit and the second normally-closed contact 12 of network interconnecting circuit all in normally off in off-state, the first power supply buses 16 and the second power supply buses 20 normal power supplies also make the first transformer 5 and the second transformer 15 in there being electricity condition, the first breaker closing coil 4 and the second breaker closing coil 14 obtain electric, make the first circuit breaker main contact 17 and the second circuit breaker main contact 19 all in attracting state, at this moment first circuit breaker the second normally-closed contact 7 and second circuit breaker the second normally-closed contact 8 are in open mode, although system interconnection transformer 10 is in there being electricity condition, even if press by force network interconnecting circuit switch knob 6, network interconnecting circuit closing coil 9 still can not obtain electric, having reached the first power supply buses 16 and the second power supply buses 20 can not be same load supplying simultaneously, and cause the impact of two-way power supply.
When the first power supply buses 16 or the second power supply buses 20 power failure, making has one in attracting state in first circuit breaker the second normally-closed contact 7 and second circuit breaker the second normally-closed contact 8, owing to needing only the first power supply buses 16 or the second power supply buses 20You mono-tunnel, there is electricity, system interconnection transformer 10 is all in there being electricity condition, as long as press network interconnecting circuit switch knob 6, just can make network interconnecting circuit closing coil 9 have electricity, cause network interconnecting circuit main contact 18 closures, make the load that has a power failure in by the state of another road Power supply.
At the first power supply buses 16 normal power supplies, and under the second power supply buses 20 power down modes, at this moment the first normally-closed contact 13 of the first circuit breaker is opened, the second normally-closed contact 12 of network interconnecting circuit is also opened, if when the second power supply buses 20 is sent a telegram here suddenly, make the second transformer 15 in there being electricity condition, even if press by force the second breaker closing button 11, can not cause the second breaker closing coil 14 to obtain electric, make the second circuit breaker main contact 19 adhesives yet.Otherwise, at the first power supply buses 16, have a power failure, and under the second power supply buses 20 normal power supply states, at this moment the first normally-closed contact 3 of the second circuit breaker is opened, and the first normally-closed contact 2 of network interconnecting circuit is also opened, if when the first power supply buses 16 is sent a telegram here suddenly, make the first transformer 5 in there being electricity condition, even if press by force the first breaker closing button 1, can not cause the first breaker closing coil 4 to obtain electric yet, make the first circuit breaker main contact 17 adhesives.The present invention has guaranteed that from structure same load can not allow two-way power supply power simultaneously, causes the impact of two-way power supply.
Claims (1)
1. circuit supplies power with double circuit in a down-hole of avoiding the electrical network produce to impact, comprise the first power supply buses (16), the second power supply buses (20), the first load (21) and the second load (22), the input of the first circuit breaker main contact (17) is electrically connected to the first power supply buses (16), on the output of the first circuit breaker main contact (17), be connected with the first load (21), the input of the second circuit breaker main contact (19) is electrically connected to the second power supply buses (20), on the output of the second circuit breaker main contact (19), be connected with the second load (22), it is characterized in that, between the output of the first circuit breaker main contact (17) and the output of the second circuit breaker main contact (19), be connected with network interconnecting circuit main contact (18), on the first power supply buses (16), be provided with the first transformer (5), an output of the first transformer (5) is electrically connected to one end of the first breaker closing button (1), one end after the first normally-closed contact (3) parallel connection of first normally-closed contact (2) of network interconnecting circuit and the second circuit breaker is electrically connected to the other end of the first breaker closing button (1), the other end after the first normally-closed contact (3) parallel connection of first normally-closed contact (2) of network interconnecting circuit and the second circuit breaker is electrically connected to one end of the first breaker closing coil (4), the other end of the first breaker closing coil (4) is electrically connected to another output of the first transformer (5), on the second power supply buses (20), be provided with the second transformer (15), an output of the second transformer (15) is electrically connected to one end of the second breaker closing button (11), one end after the first normally-closed contact (13) parallel connection of second normally-closed contact (12) of network interconnecting circuit and the first circuit breaker is electrically connected to the other end of the second breaker closing button (11), the other end after the first normally-closed contact (13) parallel connection of second normally-closed contact (12) of network interconnecting circuit and the first circuit breaker is electrically connected to one end of the second breaker closing coil (14), the other end of the second breaker closing coil (14) is electrically connected to another output of the second transformer (15), the input of system interconnection transformer (10) is connected in parallel on the first power supply buses (16) and the second power supply buses (20), an output of system interconnection transformer (10) is electrically connected to one end of network interconnecting circuit switch knob (6), one end after the second normally-closed contact (8) parallel connection of second normally-closed contact (7) of the first circuit breaker and the second circuit breaker is electrically connected to the other end of network interconnecting circuit switch knob (6), the other end after the second normally-closed contact (8) parallel connection of second normally-closed contact (7) of the first circuit breaker and the second circuit breaker is electrically connected to one end of network interconnecting circuit closing coil (9), the other end of network interconnecting circuit closing coil (9) is electrically connected to another output of system interconnection transformer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512032.0U CN203504274U (en) | 2013-08-21 | 2013-08-21 | Downhole dual-circuit power-supply circuit preventing impact on power grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512032.0U CN203504274U (en) | 2013-08-21 | 2013-08-21 | Downhole dual-circuit power-supply circuit preventing impact on power grid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203504274U true CN203504274U (en) | 2014-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320512032.0U Withdrawn - After Issue CN203504274U (en) | 2013-08-21 | 2013-08-21 | Downhole dual-circuit power-supply circuit preventing impact on power grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203504274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414238A (en) * | 2013-08-21 | 2013-11-27 | 山西汾西机电有限公司 | Downhole duplex feeding circuit preventing surges from power grid |
-
2013
- 2013-08-21 CN CN201320512032.0U patent/CN203504274U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414238A (en) * | 2013-08-21 | 2013-11-27 | 山西汾西机电有限公司 | Downhole duplex feeding circuit preventing surges from power grid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140326 Effective date of abandoning: 20150610 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140326 Effective date of abandoning: 20150610 |
|
| RGAV | Abandon patent right to avoid regrant |