CN202696279U - Circuit breaker controller with dual-power changeover function and dual-power switching system - Google Patents
Circuit breaker controller with dual-power changeover function and dual-power switching system Download PDFInfo
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- CN202696279U CN202696279U CN2012202370387U CN201220237038U CN202696279U CN 202696279 U CN202696279 U CN 202696279U CN 2012202370387 U CN2012202370387 U CN 2012202370387U CN 201220237038 U CN201220237038 U CN 201220237038U CN 202696279 U CN202696279 U CN 202696279U
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- 238000005859 coupling reaction Methods 0.000 claims description 18
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Classifications
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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
- 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
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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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
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
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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
- Y04S20/248—UPS systems or standby or emergency generators
Abstract
The utility model discloses a system for realizing dual-power switching by utilizing a controller of an intelligent circuit breaker. The controller comprises a switch monitoring module coupled with the outgoing line circuit of the circuit breaker, an electricity acquisition module coupled with the incoming line circuit of the circuit breaker or a secondary side of a current transformer at an outgoing line side, a signal processing unit which is coupled with the electricity acquisition module and transmits a processed voltage and current data of a main circuit to an MCU (Microprogrammed Control Unit), and a bus interface module which communicates with an external device, wherein the MCU is respectively coupled with the switch monitoring module, the electricity acquisition module and the bus interface module, and can be used for commanding and controlling the operation state of the circuit breaker through the analysis and calculation of electricity acquisition information or communication information from the bus interface so as to achieve the switching off/on operation or troubleshooting of the circuit breaker. The system does not need to be additionally provided with a dual-power control device, so that the system is simpler in structure and also convenient to install and maintain.
Description
Technical field
The utility model relates to the Low Voltage Electrical Apparatus in the distribution system, in particular, relates to a kind of breaker controller with duplicate supply translation function, by the Dual-power switching system of two this breaker controllers by the communication line coupling.
Background technology
Dual-power automatic switching device is the important electrical equipment of distribution system, power supply commonly used and the stand-by power supply two-way power supply of general automatic transfer equipment access electric power system, and can between two power supplys, automatically change, guaranteed continuity and the reliability of powering load.Figure 1 shows that existing a kind of CB level double-power supply switching device that is comprised of omnipotent breaker, it mainly is comprised of following components:
Two omnipotent breakers 1;
A Dual-power automatic conversion control device 2 independently;
A mechanical interlocking device 3.
Be characterized in connecing power supply being realized the multistage current protecting function such as overload, short circuit by the intelligent controller of circuit breaker 1; realize under-voltage, the disconnected defencive function that equates by Dual-power automatic conversion control device 2; in the mutual conversion of commonly using between two circuit breakers 1 between power supply and stand-by power supply, guarantee the normal operation of subordinate's circuit.The intelligent controller of circuit breaker 1 has adopted microprocessor technology and has had communication function, by the current transformer Information Monitoring and carry out data analysis and process, thus the running status of commander and control circuit breaker 1.
Two circuit breakers 1 in the above-mentioned existing CB level double-power supply switching device are in the isolated operation situation; only to the current circuit of circuit breaker transship, the protection such as short circuit, must use independently Dual-power automatic conversion control device 2 could realize the mutual conversion between two circuit breakers as controller.Add that independently Double-power controller building block kind is many, complex structure, the wiring trouble, very inconvenient when installation and maintenance.
The utility model content
Technical problem to be solved in the utility model provide a kind of simple in structure, save cost and the breaker controller with duplicate supply translation function that maintains easily and easier and reliably realize the Dual-power switching system of duplicate supply conversion.
The purpose of this utility model is achieved through the following technical solutions:
A kind of breaker controller with duplicate supply translation function, comprise the control module that is consisted of by microprocessor or single-chip microcomputer, it is analyzed and processes the current information of the main circuit of the current transformer collection by being arranged on the breaker outgoing line side, it is characterized in that this controller also comprises:
With the monitoring switch module of breaker outgoing line circuit coupling, be used for the operational factor of monitoring breaker;
Electric quantity acquisition module with the coupling of the current transformer secondary of circuit breaker inlet wire circuit or outgoing line side;
With the signal processing unit of electric quantity acquisition module coupling, described signal processing unit is sent to described control module to main circuit voltage, the current data that current value, the magnitude of voltage of main circuit carries out after signal is processed and will be processed;
Bus interface module with external device communication;
Described control module is coupled with described monitoring switch module, electric quantity acquisition module and bus interface module respectively, main circuit current by analytical calculation electric quantity acquisition module output or information of voltage or from the communication information of bus interface module, command and control the running status of described circuit breaker, in order to realize that circuit breaker divides/closing operation or troubleshooting.
Preferably, described electric quantity acquisition module comprises the voltage sample unit with the coupling of circuit breaker inlet wire circuit, and with the current sampling unit of the current transformer secondary of breaker outgoing line side coupling, described signal processing unit is connected with voltage acquisition unit, current acquisition unit respectively.
Preferably, described breaker controller also comprises the human-machine interface module that is coupled with described control module.
Preferably, described breaker controller also comprises the accessory power supply module of each module that Xiang Yuqi is coupled and unit power supply usefulness.
A kind of Dual-power switching system, comprise two circuit breakers that have such as the arbitrary described breaker controller of claim 1～4, connect by communication line between the bus interface module in described two circuit breakers, the control module of described two circuit breakers realizes that by described communication line duplicate supply switches interlock.
Preferably, also be provided with mechanical interlocking device between described two circuit breakers.Increase mechanical interlocking device, can when the controller misoperation, avoid two circuit breakers to close a floodgate simultaneously, cause two-way power supply operation with closed ring, damage circuit breaker and equipment, improved the reliability of system.
Preferably, described Dual-power switching system also comprises a main monitoring module of communicating by letter with two breaker controllers respectively, described two breaker controllers feed back to main monitoring module with main circuit information about power and circuit-breaker status information, realize that by two circuit breaker actions of main monitoring module control duplicate supply switches interlock.This is a kind of technical scheme of centralized monitor, and the controller of circuit breaker only is responsible for Information Monitoring and is accepted the control signal of main monitoring, and the information of collection uploads to main monitoring module, issues control command after analyzing by main monitoring module is unified.Unified monitoring can be unified analyzing and processing to all data, and it is more accurate to judge, reduces the possibility of misoperation, also is conducive to digitlization, the intelligent level of elevator system.
A kind of control method of above-mentioned Dual-power switching system comprises step:
A: breaker controller detects voltage and circuit-breaker status information;
B: carry out combined operation according to pre-set programs, return steps A.
Preferably, described step B comprises:
A circuit breaker is set to circuit breaker commonly used; Another is back-up breaker;
If circuit breaker voltage commonly used is unusual, then time-delay control circuit breaker trip commonly used is controlled back-up breaker and is closed a floodgate;
If circuit breaker voltage commonly used recovers normal, time-delay control back-up breaker separating brake, then control breaker closing commonly used;
Return steps A.
This is the control program of a kind of one stand-by power supply commonly used, and system is by a Power supply commonly used, and another is stand-by power supply; When power supply commonly used is normal, by Power supply commonly used, only when power supply commonly used is out of order, just use stand-by power supply, in case power up commonly used is normal, change again Power supply commonly used over to.
Preferably, described step B comprises:
Judge the voltage of the circuit breaker that is in "on" position;
If voltage is normal, keep "on" position;
If electric voltage exception is controlled the circuit breaker trip of current combined floodgate; Then control the another one breaker closing;
Return steps A.
This is a kind of variable control program of distinguishing with, stand-by power supply, and the power supply that two circuit breakers connect can be as power supply commonly used, and by any one power supply powering load wherein, another is for subsequent use when normally moving; When only having the power supply of current operation to break down, just switch to the another one Power supply.
The utility model is because the controller that uses intelligent breaker to carry; integrated monitoring switch module in circuit breaker; increased the electric quantity acquisition module of voltage sample function; bus interface module; and by the control module unified monitoring; so that breaker controller not only can be realized overload; the current protecting function such as short circuit; can also realize under-voltage; disconnected equivalent voltage defencive function; can realize the duplicate supply handoff functionality as long as two circuit breakers of the present utility model are just communicated; perhaps carry out data sharing by communication line; main control by system can be realized the duplicate supply handoff functionality; need not additionally to increase independently duplicate supply and automatically change circuit breaker; therefore structure is more simple; when saving cost, improve the reliability of product.
Description of drawings
Fig. 1 is the schematic diagram of existing a kind of Dual-power switching system;
Fig. 2 is the schematic diagram of the utility model Dual-power switching system;
Fig. 3 is the principle schematic of the utility model breaker controller;
Fig. 4 is the utility model breaker controller voltage sample unit principle schematic;
Fig. 5 is the schematic diagram of the utility model Dual-power switching system the first communication mode;
Fig. 6 is the schematic diagram of the utility model Dual-power switching system the second communication mode;
Fig. 7 is that the man-machine parameter of the utility model Dual-power switching system arranges the interface schematic diagram;
Fig. 8 is that the utility model Dual-power switching system people machine data reads the interface schematic diagram.
Wherein: 1, circuit breaker; 2, duplicate supply is changed circuit breaker automatically; 3, mechanical interlocking device; 4, current sampling unit; 5, signal processing unit; 6, voltage sample unit; 7, human-machine interface module; 8, bus interface module; 9, control module (being called for short MCU); 10, accessory power supply module; 11, monitoring switch module; 12, main monitoring module; 13, communication line.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and preferred embodiment.Shown in figure 2,3,
The utility model has disclosed a kind of Dual-power switching system that comprises two intelligent breakers 1, each circuit breaker 1 among Fig. 2 comprises take microprocessor or the single-chip microcomputer breaker controller (also claiming intelligent electrical apparatus release) that consists of as core of MCU for example, this controller comprises the control module 9 that is made of MCU, it is analyzed and processes the current information of the main circuit of the current transformer collection by being arranged on the breaker outgoing line side, and this controller also comprises for the operational factor of monitoring breaker and monitoring switch module 11 coupling of breaker outgoing line circuit, electric quantity acquisition module with the coupling of the current transformer secondary of circuit breaker inlet wire circuit or outgoing line side, with the signal processing unit 5 of electric quantity acquisition module coupling and with the bus interface module 8 of external device communication; Main circuit voltage, current data that current value, the magnitude of voltage of 5 pairs of main circuits of described signal processing unit carries out after signal is processed and will be processed are sent to described control module 9; This control module 9 is coupled with described monitoring switch module 11, electric quantity acquisition module and bus interface module 8 respectively, main circuit current by analytical calculation electric quantity acquisition module output or information of voltage or from the communication information of bus interface module 8, carrying out fault judges, commander and control the running status of described circuit breaker 1 divides/closing operation or fix a breakdown in order to realize circuit breaker.Control module 9 can be selected the control chips such as single-chip microcomputer (such as MCU).
Electric quantity acquisition module shown in Figure 3 comprises the voltage sample unit 6 with the coupling of circuit breaker 1 inlet wire, and the current sampling unit 4 of following the breaker outgoing line coupling.Signal processing unit 5 is respectively with 4 couplings of voltage acquisition unit 6, current acquisition unit, and voltage, the current data of the main circuit after processing is sent to described control module 9.If there is overload, short circuit or under-voltage, the disconnected fault that equates, can be directly show corresponding information and carry out that data are checked, parameter tuning by the human-machine interface module 7 of controller, conveniently fix a breakdown.Certainly, breaker controller of the present utility model can not adopt human-machine interface module 7, and directly passes through bus interface module 8 to host computer communication, carries out monitoring and the operation of circuit breaker 1 by remote monitoring.
Accessory power supply module 10 is used for powering to module or the unit of each and its coupling of the controller of circuit breaker 1.Accessory power supply module 10 also can be external, by power module externally being set to the controller power supply of each circuit breaker 1.
Breaker controller detects the electric current of the circuit breaker of flowing through by current sampling unit 4, detect the voltage of circuit breaker by voltage sample unit 6, carrying out filtering by signal processing circuit 5 behind electric current, the voltage signal sampling processes, send into MCU control module 9 and carry out computing, MCU by built-in threshold values relatively, judge whether line current the faults such as overload, short circuit occur, judge whether line voltage distribution under-voltage, the disconnected fault that equates occurs.The controller of a circuit breaker can link to each other with the bus interface circuit 8 of the controller of another circuit breaker by bus interface module 8, can also be connected to the main monitoring of power-supply system.
The utility model breaker controller voltage sample unit schematic diagram as shown in Figure 4, the voltage sample unit 6 of present embodiment are connected with four and gather circuit, gather the phase voltage of inlet wire by the mode of electric resistance partial pressure.Wherein, resistance R 1～R6 is divider resistance, high voltage drop is arrived the interior low-voltage of A/D (analog digital) transducer working range, and be connected in three passages of AN0～AN2, A/D converter changes into aanalogvoltage corresponding digital quantity fast, makes things convenient for MCU control module 9 to read calculating.Certainly also can select three to gather circuits, connecting to neutral line not gathers the line voltage of inlet wire, can be used for equally judging under-voltage, overvoltage, disconnected equivalent voltage fault.
Above-mentioned circuit breaker 1 is the intelligent breaker that possesses complete electric quantity acquisition, communication, control function, has overload, short circuit, under-voltage, phase failure protection function.Therefore, can adopt various ways to set up flexibly Dual-power switching system by two circuit breakers 1, save a Double-power controller than existing scheme, when saving cost, improve the reliability of product.Two circuit breaker 1 preferred frame-type intelligent breakers that adopt also can adopt the plastic shell intelligent breaker.The below illustrates the dual mode of setting up Dual-power switching system:
Networking mode one
As shown in Figure 5, the Dual-power switching system of this networking mode comprises the intelligent breaker 1 of two above-mentioned same specifications, two than line connecting communication circuit 13 with shielding between the bus interface module 8 in two circuit breakers, the circuit breaker 1 of two platform independent is connected into organic one, respectively two circuit breakers 1 are set to power supply, stand-by power supply commonly used in inside or close (duplicate supply function) with reference to figure 7, in case network successfully, the breaker controller that operates in mains side commonly used is responsible for whole control function, realizes whole double power supply automatic transfer switch functions; Again by communication line 13, the breaker controller of mains side commonly used can obtain the ruuning situation of stand-by power supply side intelligent controller by master-slave mode communications protocol (concrete communications protocol is made by oneself by conditions of the enterprise), comprises information such as Fig. 8 such as voltage, circuit breaker position of stand-by power supply.Certainly, the Dual-power switching system of present embodiment can also be applied in the occasion of variable usefulness, stand-by power supply.Bus interface module 8 can also be selected other communication interfaces such as Ethernet interface, and communication line 13 also can select coaxial cable, optical cable etc. to connect.
This execution mode need not third-party supervising device and software, only needs the connecting communication circuit, can realize very easily the duplicate supply translation function, and debugging and maintenance is all very convenient; Than the plug-in Dual-power automatic conversion control device of existing independence more economically and conveniently, omitted independently Double-power controller.Can also add mechanical interlocking device between two circuit breakers, when the controller misoperation, avoid two circuit breakers to close a floodgate simultaneously, cause two-way power supply operation with closed ring, damage circuit breaker and equipment, improve the reliability of system.
Networking mode two
As shown in Figure 6, on the basis of above-mentioned networking mode, the communication line 13 of two circuit breakers 1 is connected on the main monitoring module 12 of whole Dual-power switching system, circuit breaker 1 feeds back to main monitoring module 12 with electric weight and circuit-breaker status information, realizes that by two circuit breaker actions of main monitoring module 12 controls duplicate supply switches interlock.This is a kind of technical scheme of centralized monitor, and the controller of circuit breaker only is responsible for Information Monitoring and is accepted the control signal of main monitoring, and the information that gathers is uploaded to main monitoring module 12, by issuing control command after main monitoring module 12 unified the analyses.Unified monitoring can be unified analyzing and processing to all data, and it is more accurate to judge, reduces the possibility of misoperation, also is conducive to digitlization, the intelligent level of elevator system.Can also add mechanical interlocking device between two circuit breakers, when the controller misoperation, avoid two circuit breakers to close a floodgate simultaneously, cause two-way power supply operation with closed ring, damage circuit breaker and equipment, improve the reliability of system.
The invention also discloses a kind of control method of above-mentioned Dual-power switching system, comprise step:
A: circuit breaker 1 detects voltage and circuit-breaker status information;
B: carry out combined operation according to pre-set programs, return steps A.
Above-mentioned combined operation is divided into following two kinds of situations according to the difference of duplicate supply character.
Situation one: the control program of corresponding one stand-by power supply commonly used, system is by a Power supply commonly used, and another is stand-by power supply; When power supply commonly used is normal, by Power supply commonly used, only when power supply commonly used is out of order, just use stand-by power supply, in case power up commonly used is normal, change again Power supply commonly used over to.The intelligent controller of mains side circuit breaker commonly used arranges according to the user and actual electrical network situation realizes that the two-way power supply changes mutually.When power supply generation overvoltage commonly used, under-voltage and disconnected equal fault, power supply commonly used disconnects power supply commonly used after through the T1 time-delay, and time-delay sends the order of closing a floodgate to the stand-by power supply intelligent controller through T2 again, allows the intelligent controller of stand-by power supply side circuit breaker realize closing a floodgate; After power up commonly used was normal, time-delay disconnected stand-by power supply through T2, through sending the order of closing a floodgate after the T1 time-delay, connected power supply commonly used again, realized the duplicate supply translation function.
Situation two: the power supply that the corresponding variable control program of distinguishing with, stand-by power supply, two circuit breakers connect can be as power supply commonly used, and by any one power supply powering load wherein, another is for subsequent use when normally moving; When only having the power supply of current operation to break down, just switch to the another one Power supply.Under this mode, above-mentioned steps B comprises: the voltage of judging the circuit breaker that is in "on" position; If voltage is normal, keep "on" position; If electric voltage exception is controlled the circuit breaker trip of current combined floodgate; Then control the another one breaker closing; Then return steps A.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (7)
1. breaker controller with duplicate supply translation function, comprise the control module that is consisted of by microprocessor or single-chip microcomputer, it is analyzed and processes the current information of the main circuit of the current transformer collection by being arranged on the breaker outgoing line side, it is characterized in that this controller also comprises:
With the monitoring switch module of breaker outgoing line circuit coupling, be used for the operational factor of monitoring breaker;
Electric quantity acquisition module with the coupling of the current transformer secondary of circuit breaker inlet wire circuit or outgoing line side;
With the signal processing unit of electric quantity acquisition module coupling, described signal processing unit is sent to described control module to main circuit voltage, the current data that current value, the magnitude of voltage of main circuit carries out after signal is processed and will be processed;
Bus interface module with external device communication;
Described control module is coupled with described monitoring switch module, electric quantity acquisition module and bus interface module respectively, main circuit current by analytical calculation electric quantity acquisition module output or information of voltage or from the communication information of bus interface module, command and control the running status of described circuit breaker, in order to realize that circuit breaker divides/closing operation or troubleshooting.
2. breaker controller as claimed in claim 1, it is characterized in that, described electric quantity acquisition module comprises the voltage sample unit with the coupling of circuit breaker inlet wire circuit, and with the current sampling unit of the current transformer secondary of breaker outgoing line side coupling, described signal processing unit is connected with voltage acquisition unit, current acquisition unit respectively.
3. breaker controller as claimed in claim 1 is characterized in that, described breaker controller also comprises the human-machine interface module with described control module coupling.
4. breaker controller as claimed in claim 1 is characterized in that, described breaker controller also comprises the accessory power supply module of each module that Xiang Yuqi is coupled and unit power supply usefulness.
5. Dual-power switching system, comprise two circuit breakers that have such as the arbitrary described breaker controller of claim 1～4, connect by communication line between the bus interface module in described two circuit breakers, the control module of described two circuit breakers realizes that by described communication line duplicate supply switches interlock.
6. a kind of Dual-power switching system as claimed in claim 5 is characterized in that, also is provided with mechanical interlocking device between described two circuit breakers.
7. a kind of Dual-power switching system as claimed in claim 5, it is characterized in that, described Dual-power switching system also comprises a main monitoring module of communicating by letter with two breaker controllers respectively, described two breaker controllers feed back to main monitoring module with main circuit information about power and circuit-breaker status information, realize that by two circuit breaker actions of main monitoring module control duplicate supply switches interlock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202370387U CN202696279U (en) | 2012-05-21 | 2012-05-21 | Circuit breaker controller with dual-power changeover function and dual-power switching system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012202370387U CN202696279U (en) | 2012-05-21 | 2012-05-21 | Circuit breaker controller with dual-power changeover function and dual-power switching system |
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| CN202696279U true CN202696279U (en) | 2013-01-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991628A (en) * | 2015-06-30 | 2015-10-21 | 北京百度网讯科技有限公司 | Intelligent power monitoring system for data center and monitoring method |
| CN106026359A (en) * | 2016-06-26 | 2016-10-12 | 潘炳松 | Automatic switching control method for dual power supplies |
-
2012
- 2012-05-21 CN CN2012202370387U patent/CN202696279U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991628A (en) * | 2015-06-30 | 2015-10-21 | 北京百度网讯科技有限公司 | Intelligent power monitoring system for data center and monitoring method |
| CN106026359A (en) * | 2016-06-26 | 2016-10-12 | 潘炳松 | Automatic switching control method for dual power supplies |
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Assignee: Wenzhou Zhengtai Electrical Technology Co., Ltd Assignor: Zhejiang Chint Electrics Co.,Ltd. Contract record no.: X2020330000078 Denomination of utility model: Circuit breaker controller with dual power conversion function and dual power switching system Granted publication date: 20130123 License type: Common License Record date: 20201021 |
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| EE01 | Entry into force of recordation of patent licensing contract |