CN202435122U - Two-path power supply circuit - Google Patents
Two-path power supply circuit Download PDFInfo
- Publication number
- CN202435122U CN202435122U CN2011205172260U CN201120517226U CN202435122U CN 202435122 U CN202435122 U CN 202435122U CN 2011205172260 U CN2011205172260 U CN 2011205172260U CN 201120517226 U CN201120517226 U CN 201120517226U CN 202435122 U CN202435122 U CN 202435122U
- Authority
- CN
- China
- Prior art keywords
- contactors
- circuit
- time relay
- power supply
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Direct Current Feeding And Distribution (AREA)
- Keying Circuit Devices (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
本实用新型公开的一种双路供电电路，包括两个接触器，两个断路器和一个时间继电器，两个接触器通过常闭辅助触点相互互锁，两个断路器分别和两个接触器的线圈串联，时间继电器的常开触点和其中一个接触器的线圈串联；通过两个接触器的互锁连接，每次只有一个供电线路向负载供电，避免了错误操作引起的对负载设备的损坏。通过断路器分别和两个接触器的线圈串联，可以控制是否自动切换，满足特殊要求；同时，当两个断路器全部接通时，则两个供电电路哪个先有电，就优先使用哪个供电电路供电。时间继电器可以控制自动切换之间的时间间隔。
The utility model discloses a dual-circuit power supply circuit, which comprises two contactors, two circuit breakers and a time relay, the two contactors are interlocked with each other through the normally closed auxiliary contacts, and the two circuit breakers respectively contact with the two The coils of the time relay are connected in series, the normally open contact of the time relay is connected in series with the coil of one of the contactors; through the interlock connection of the two contactors, only one power supply line supplies power to the load at a time, which avoids damage to the load equipment caused by wrong operation damage. By connecting the circuit breaker in series with the coils of the two contactors, it is possible to control whether to switch automatically to meet special requirements; at the same time, when both circuit breakers are turned on, whichever of the two power supply circuits has power first will be used first. circuit powered. The time relay can control the time interval between automatic switching.
Description
Technical field
The utility model relates to a kind of power supply circuits, is specifically related to a kind of circuit that supplies power with double circuit.
Background technology
In the commercial power industry, it is more common often to run into situation about switching between the situation, particularly mains supply line that will between two supply lines, switch and the stand-by power supply circuit.When switching, if operating mistake too much just appears in artificial operation easily, if operation fully automatically can not realize under the certain situation switching immediately.
Summary of the invention
The utility model technical problem to be solved provides a kind of duplicate supply circuit, can realize that the effective and safe that supplies power with double circuit switches, again can Artificial Control.
For solving the problems of the technologies described above, following technical scheme is adopted in the invention:
A kind of circuit that supplies power with double circuit; Comprise two contactors, two circuit breakers and a time relay, two contactors are through the mutual interlocking of normally closed auxiliary contact; Two circuit breakers are connected with the coil of two contactors respectively, the normally opened contact of the time relay and the series connection of the coil of one of them contactor.
Further, said contactor all comprises at least one road normally-closed contact.
Further, said circuit breaker is a single channel type circuit breaker.
Further, the said time relay is the on-delay connection type time relay.
Because adopt technique scheme, the invention has following beneficial effect:
1, owing to be provided with two contactors and adopt interlocking to connect, thus have only a supply line to power to the load at every turn, the damage of having avoided faulty operation to cause to load equipment.
2, owing to be provided with two circuit breakers, and respectively with the coil series connection of two contactors, can control and whether automatically switch, satisfy specific (special) requirements; Simultaneously, when two circuit breakers are all connected, then two power supply circuits which electricity is arranged earlier, just preferentially use which power supply circuits power supply.
3, owing to be provided with the time relay, can control the time interval between the automatic switchover.
Description of drawings
Fig. 1 is the electrical schematic diagram of the invention.
Embodiment
In conjunction with Fig. 1, a kind of circuit that supplies power with double circuit, comprise two contactors (be expressed as KM1, KM2), two circuit breakers (be expressed as QF1, QF2), the time relay (being expressed as KT1) that on-delay is connected.
On major loop, the end of incoming cables of two contactors connects two feeder ears respectively, and the leading-out terminal of these two contactors is connected in parallel and is connected to load; On the control loop, the coil of contactor KM1 is received after the normally closed auxiliary contact of contactor KM2 and the circuit breaker Q F1 series connection between the wherein arbitrary phase and zero line of end of incoming cables of contactor KM1; The coil of contactor KM2 and the normally closed auxiliary contact of KM1 are received after the normally opened contact of time relay KT1 and the circuit breaker Q F2 series connection between the wherein arbitrary phase and zero line of end of incoming cables of contactor KM2; The coil of time relay KT1 is connected between the appearance end and zero line of QF2 simultaneously.Whether circuit breaker Q F1 control contactor QF1 connects automatically, and whether circuit breaker Q F2 control KM2 connects the turn-on delay time of time relay KT1 control contactor KM2 automatically.
During use, contactor KM1 connects main power supply circuits, and contactor KM2 connects the stand-by power supply circuit; If main power supply circuits have electricity, after circuit breaker Q F1 connected, main power supply circuits power supply was used in contactor KM1 adhesive, load this moment.After main circuit does not have electricity, contactor KM1 automatic disconnection, if at this moment stand-by circuit has electricity, and circuit breaker Q F2 connection, after the time that then elapsed time relay K T1 sets, KM2 connects automatically.If do not want to automatically switch, cut-off breaker QF2 just gets final product.If two power supply circuits all do not have electricity, and connect a circuit breaker Q F1, when QF2 connected, then which power supply circuits had electricity earlier, all that roads of just automaticallying switch.
Claims (1)
1. duplicate supply circuit; It is characterized in that: comprise two contactors; Two circuit breakers and a time relay; Two contactors are through the mutual interlocking of normally closed auxiliary contact, and two circuit breakers are connected with the coil of two contactors respectively, the normally opened contact of the time relay and the series connection of the coil of one of them contactor.
2, duplicate supply circuit according to claim 1 is characterized in that: said contactor all comprises at least one road normally-closed contact.
3, duplicate supply circuit according to claim 1 is characterized in that: said circuit breaker is a single channel type circuit breaker.
4, duplicate supply circuit according to claim 1 is characterized in that: the said time relay is the on-delay connection type time relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205172260U CN202435122U (en) | 2011-12-10 | 2011-12-10 | Two-path power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205172260U CN202435122U (en) | 2011-12-10 | 2011-12-10 | Two-path power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202435122U true CN202435122U (en) | 2012-09-12 |
Family
ID=46784531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205172260U Expired - Fee Related CN202435122U (en) | 2011-12-10 | 2011-12-10 | Two-path power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202435122U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958633A (en) * | 2016-06-22 | 2016-09-21 | 中航太克（厦门）电力技术股份有限公司 | Two-way power supply automatic switching power supply circuit |
| CN108767970A (en) * | 2018-05-29 | 2018-11-06 | 河南森源电气股份有限公司 | A kind of dual power supply automatic bus |
-
2011
- 2011-12-10 CN CN2011205172260U patent/CN202435122U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958633A (en) * | 2016-06-22 | 2016-09-21 | 中航太克（厦门）电力技术股份有限公司 | Two-way power supply automatic switching power supply circuit |
| CN108767970A (en) * | 2018-05-29 | 2018-11-06 | 河南森源电气股份有限公司 | A kind of dual power supply automatic bus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20121210 |