CN202405861U - Stand-by power supply generation device - Google Patents
Stand-by power supply generation device Download PDFInfo
- Publication number
- CN202405861U CN202405861U CN2011205614105U CN201120561410U CN202405861U CN 202405861 U CN202405861 U CN 202405861U CN 2011205614105 U CN2011205614105 U CN 2011205614105U CN 201120561410 U CN201120561410 U CN 201120561410U CN 202405861 U CN202405861 U CN 202405861U
- Authority
- CN
- China
- Prior art keywords
- power supply
- power
- switching device
- dual
- stand
- 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
Abstract
The utility model discloses a stand-by power supply generation device which has strong applicability to a power system and strong operational reliability and is connected to a control cabinet together with a mains supply. The stand-by power supply generation device comprises a mains main loop isolating switch, a micro circuit breaker and a dual-power switching device, wherein the mains supply is connected to a power supply terminal at the lower end of the control cabinet; the power supply terminal is connected with the mains main loop isolating switch; an outgoing line of the isolating switch is connected with the input terminal of the dual-power switching device; the input terminal and the output terminal of the micro circuit breaker are respectively connected with a stand-by power supply and the dual-power switching device; the output terminal of the dual-power switching device is connected with a load terminal; the dual-power switching device comprises a main board, an analog quantity sampling board, a relay board, an intermediate relay, a controller and a dual-power change-over switch; and a mains voltage signal sequentially passes through the analog quantity sampling board, the main board, the relay board, the intermediate relay, the controller and the dual-power change-over switch and is input into the intermediate relay.
Description
Technical field
The utility model relates to the technical field of generating set electric control system, relates in particular to a kind of stand-by power supply TRT.
Background technology
Present stand-by power supply electricity generation system is employed to be to lean on directional contactor directly between the two-way power supply, to switch powering load.Major loop is made up of small air circuit breaker, directional contactor.
The functional characteristics of existing this cover system:
(1) the main realization function of small air circuit breaker is: when load during by generator powered, and the phase fault, single-phase short circuit, the relative ground circuit that occur in the protection supply line.
(2) the main realization function of directional contactor is: through machinery and electric two kinds of interlocking measures; Guarantee under any situation; The power supply that load end is accepted can only be a road power supply in civil power and the generating; Ensured that so effectively the fault of two-way power supply short circuit can not appear in load end when civil power was supplied power with generating two-way power supply simultaneously.
The weak point of existing this cover system:
(1) civil power is only realized break-make control through directional contactor with load circuit in the stand-by power supply electricity generation system control cubicle, being unfavorable for so after under band year situation the electrical system of standby electric supply for maintenance electricity generation system.
(2) realize conversion with directional contactor between the duplex feeding power supply, when running into supply power voltage when unstable, contactor coil and armature mechanism can produce strong shake, are easy to moment when load current is big to burn out the contactor main contacts.
(3) existing this cover stand-by power supply electricity generation system also has a very big unreliability, and promptly when the three phase mains phase shortage, that is lacked is mutually if the working power of directional contactor coil, and then directional contactor can not normally move by instructing.
For these reasons, the design of electric major loop and control loop also has very big unsteadiness in the prior art; Cause this cover stand-by power supply electricity generation system not strong to the applicability and the functional reliability of electric power system.
The utility model content
For overcoming the defective of prior art, the technical problem that the utility model will solve has provided the stand-by power supply TRT that a kind of applicability to electric power system is strong, functional reliability is strong.
The technical scheme of the utility model is: this stand-by power supply TRT; Itself and mains supply all are connected to control cubicle; This device comprises civil power major loop isolating switch, miniature circuit breaker and double-power supply switching device; Mains supply is connected to the power supply terminal of control cubicle lower end; Power supply terminal links to each other with civil power major loop isolating switch, and the outlet of isolating switch connects the input of double-power supply switching device, and the input of miniature circuit breaker, output are connected respectively to stand-by power supply, double-power supply switching device; The output of double-power supply switching device is connected to load end; Double-power supply switching device comprises mainboard, analog quantity sampling plate, relay board, auxiliary relay, controller, dual-power transfer switch, and the line voltage signal passes through analog quantity sampling plate, mainboard, relay board, auxiliary relay, controller, dual-power transfer switch successively, and the line voltage signal also is input to auxiliary relay.
Because this device comprises civil power major loop isolating switch, miniature circuit breaker and double-power supply switching device; And double-power supply switching device comprises mainboard, analog quantity sampling plate, relay board, auxiliary relay, controller, dual-power transfer switch; The line voltage signal passes through analog quantity sampling plate, mainboard, relay board, auxiliary relay, controller, dual-power transfer switch successively; The line voltage signal also is input to auxiliary relay; So through judgement, electric and multiple interlocking mechanically; Can accomplish when voltage fluctuation, to prevent the major loop burning of contact, can guarantee that also three-phase voltage double-power supply switching device when phase shortage of civil power can move reliably, therefore the applicability to electric power system is strong, functional reliability is strong.
Description of drawings
Fig. 1 is the electrical connection diagram according to the stand-by power supply TRT of the utility model;
Fig. 2 is the circuit diagram according to the double-power supply switching device of the stand-by power supply TRT of the utility model.
Embodiment
As shown in Figure 1; This stand-by power supply TRT; Itself and mains supply all are connected to control cubicle, and this device comprises civil power major loop isolating switch (QS), miniature circuit breaker (QF) and double-power supply switching device (ATS), and mains supply is connected to the power supply terminal of control cubicle lower end; Power supply terminal links to each other with civil power major loop isolating switch; The outlet of isolating switch connects the input of double-power supply switching device, and the input of miniature circuit breaker, output are connected respectively to stand-by power supply, double-power supply switching device, and the output of double-power supply switching device is connected to load end.
As shown in Figure 2; Double-power supply switching device comprises mainboard, analog quantity sampling plate, relay board, auxiliary relay, controller, dual-power transfer switch; The line voltage signal passes through analog quantity sampling plate, mainboard, relay board, auxiliary relay, controller, dual-power transfer switch successively, and the line voltage signal also is input to auxiliary relay.
Because this device comprises civil power major loop isolating switch, miniature circuit breaker and double-power supply switching device; And double-power supply switching device comprises mainboard, analog quantity sampling plate, relay board, auxiliary relay, controller, dual-power transfer switch; The line voltage signal passes through analog quantity sampling plate, mainboard, relay board, auxiliary relay, controller, dual-power transfer switch successively; The line voltage signal also is input to auxiliary relay; So through judgement, electric and multiple interlocking mechanically; Can accomplish when voltage fluctuation, to prevent the major loop burning of contact, can guarantee that also three-phase voltage double-power supply switching device when phase shortage of civil power can move reliably, therefore the applicability to electric power system is strong, functional reliability is strong.
Preferably, as shown in Figure 2, between auxiliary relay and controller, also be provided with miniature intermediate relay, the output of mainboard is also connected to miniature intermediate relay.
As shown in Figure 1, mains supply, generating power supply from control cubicle terminal board lead-in wire respectively through connecting the power input of double-power supply switching device behind isolating switch, the miniature circuit breaker, the output of the dual-power transfer switch binding post that goes between again.Such electrical layout, clear in structure understand, be difficult for wrong, be convenient to after repair and maintenance.
As shown in Figure 2; The analog quantity sampling plate of this double-power supply switching device is delivered on the mainboard after becoming digital quantity to the three-phase mains voltage transitions that collects; Mainboard carries out analysis and judgement to it; Sending control corresponding then instructs to relay board; Be handed down to execution command the coil of the auxiliary relay in the control cubicle after the miniature relay action on the relay board again, in order to ensure not short circuit behind three-phase voltage process ZJ4, two auxiliary relays of ZJ5, ZJ4, two auxiliary relays of ZJ5 all strictly carry out electrical interlocks each other.
Reliability, stability for ensureing that dual-power transfer switch uses prolong its useful life as far as possible, also designed for this reason the controller power supply of dual-power transfer switch is isolated supply power mode; Miniature intermediate relay ZJ6 is exactly the working power as isolation controller, and when dual-power transfer switch needed the switch operating position, mainboard sent the ATS action command; ZJ6 miniature intermediate relay action simultaneously; Single phase poaer supply is input to controller through the normally opened contact of ZJ6, and when mainboard was received the feedback signal of switching after putting in place, mainboard stopped to send the ATS action command; The ZJ6 miniature intermediate relay resets, and normally opened contact breaks off the working power of controller.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any pro forma restriction; Every technical spirit according to the utility model all still belongs to the protection range of the utility model technical scheme to any simple modification, equivalent variations and modification that above embodiment did.
Claims (2)
1. stand-by power supply TRT; Itself and mains supply all are connected to control cubicle; It is characterized in that: this device comprises civil power major loop isolating switch, miniature circuit breaker and double-power supply switching device; Mains supply is connected to the power supply terminal of control cubicle lower end; Power supply terminal links to each other with civil power major loop isolating switch, and the outlet of isolating switch connects the input of double-power supply switching device, and the input of miniature circuit breaker, output are connected respectively to stand-by power supply, double-power supply switching device; The output of double-power supply switching device is connected to load end; Double-power supply switching device comprises mainboard, analog quantity sampling plate, relay board, auxiliary relay, controller, dual-power transfer switch, and the line voltage signal passes through analog quantity sampling plate, mainboard, relay board, auxiliary relay, controller, dual-power transfer switch successively, and the line voltage signal also is input to auxiliary relay.
2. stand-by power supply TRT according to claim 1 is characterized in that: between auxiliary relay and controller, also be provided with miniature intermediate relay, the output of mainboard is also connected to miniature intermediate relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205614105U CN202405861U (en) | 2011-12-29 | 2011-12-29 | Stand-by power supply generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205614105U CN202405861U (en) | 2011-12-29 | 2011-12-29 | Stand-by power supply generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202405861U true CN202405861U (en) | 2012-08-29 |
Family
ID=46703478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205614105U Expired - Fee Related CN202405861U (en) | 2011-12-29 | 2011-12-29 | Stand-by power supply generation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202405861U (en) |
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2011
- 2011-12-29 CN CN2011205614105U patent/CN202405861U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20151229 |
|
| EXPY | Termination of patent right or utility model |