CN203491774U - Double power supply backup automatic switching apparatus - Google Patents
Double power supply backup automatic switching apparatus Download PDFInfo
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- CN203491774U CN203491774U CN201320582261.XU CN201320582261U CN203491774U CN 203491774 U CN203491774 U CN 203491774U CN 201320582261 U CN201320582261 U CN 201320582261U CN 203491774 U CN203491774 U CN 203491774U
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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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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a double power supply backup automatic switching apparatus. The apparatus comprises 1# and 2# power supplies. The 1# power supply is sequentially connected in series with a circuit breaker 4QF, a transformer 1TH, a circuit breaker 1QF, and a current transformer 1TA and then connected to a first segment of bus. The 2# power supply is sequentially connected in series with a circuit breaker 5QF, a transformer 2TH, a circuit breaker 2QF, and a current transformer 2TA and then connected to a second segment of bus. The first segment of bus is connected with the second segment of bus through a circuit breaker 3QF. The circuit breakers 1QF, 2QF, and 3QF and voltage signals of the 1# and 2# power supplies are connected to a LOGO! controller. According to the utility model, the Siemens LOGO! controller is adopted to form the components of the whole backup automatic switching apparatus into a whole and to automatically control the opening and closing of the circuit breakers 1QF, 2QF, and 3QF. Therefore, the backup automatic switching apparatus is compact in structure, high in reliability, and convenient to operate. Moreover, the LOGO! controller supports hand operations and automatic operations, and has an extensible module interface. Besides, a user can customize programs so that the backup automatic switching apparatus is wide in application scope and high in intelligence level and is safe and reliable.
Description
Technical field
The utility model relates to the control device of electric power system, refers to especially a kind of backup auto-activating device.
Background technology
In recent years, along with improving constantly of economic development and living standards of the people, electricity consumption of resident is constantly soaring, requirement to power supply reliability is also more and more higher, in order to guarantee power supply reliability, most of user 0.4kv power distribution stations have all configured two and above Power supply, this with regard to a kind of device of needs to two and to automatically switch between power source---backup auto-activating device.Existing double-power supply switching device can only carry out switching operation to two of two power supplys switches, there is no low pressure prepared auto restart function, and cost is high, function imperfection; And for the user of artificial switching, adopt the mode of operation manually to carry out grid switching operation, exist switch not in time, problem that automaticity is low and easily occur security incident.
Utility model content
The deficiency that the utility model exists for background technology, object is to provide a kind of perfect performance, safe and reliable, easy to operate, intelligent degree is high, the scope of application is wide duplicate supply backup auto-activating device.
The technical solution of the utility model is achieved in that a kind of duplicate supply backup auto-activating device, comprise: 1# power supply and 2# power supply, this 1# power supply circuit breaker 4QF that connects successively, transformer 1TH, after circuit breaker 1QF and current transformer 1TA, be connected on first paragraph bus, the 2# power supply circuit breaker 5QF that connects successively, transformer 2TH, after circuit breaker 2QF and current transformer 2TA, be connected on second segment bus, first paragraph bus connects second segment bus by circuit breaker 3QF, wherein, circuit breaker 1QF, 2QF, 3QF, the voltage signal of 1# power supply and 2# power supply be connected to LOGO! on controller.
Compared with prior art, technique effect is the utility model:
(1), this novel employing Siemens LOGO! Controller forms a whole the components and parts of whole backup auto-activating device, and by LOGO! Controller carries out divide-shut brake control to circuit breaker 1QF, 2QF, 3QF automatically, therefore have compact conformation, wiring is simple, easy to operate, the advantage that reliability is high.
(2), this Siemens LOGO! Controller has manually, automatic operation; Prefabricated basic function; Interface for expansion module; Input/output interface; And user can customize program, therefore powerful, the scope of application is wide, perfect performance, and intelligent degree is high, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the main circuit connection schematic diagram of this device;
Fig. 2 is the input and output wiring schematic diagram of this device;
Fig. 3 is the control flow schematic diagram of this device.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in attached Fig. 1 and 2, a kind of duplicate supply backup auto-activating device, comprise 1# power supply and 2# power supply, this 1# power supply circuit breaker 4QF that connects successively, transformer 1TH, after circuit breaker 1QF and current transformer 1TA, be connected on first paragraph bus (I section), the 2# power supply circuit breaker 5QF that connects successively, transformer 2TH, after circuit breaker 2QF and current transformer 2TA, be connected on second segment bus (II section), first paragraph bus (I section) connects second segment bus (II line) by circuit breaker 3QF, wherein, circuit breaker 1QF, 2QF, 3QF, the voltage signal of 1# power supply and 2# power supply be all connected to LOGO! on controller.
This LOGO! Controller is provided with segmentation prepared auto restart input switch, pass is backed out in the throwing of segmentation prepared auto restart and inlet wire prepared auto restart drops into switch, inlet wire prepared auto restart is thrown and backed out pass, close circuit breaker 3QF bus-tie circuit breaker HQ, divide circuit breaker 3QF bus-tie circuit breaker TQ, close circuit breaker 2QF service entrance switch HQ, close circuit breaker 1QF service entrance switch.Wherein, in the present embodiment this LOGO! The model of controller be LOGO! 230RC.
As shown in Figure 3, in the process of control, first this device carries out data acquisition, by the result of data acquisition be transported to LOGO! Controller, through LOGO! The computing of controller internal logic, sends control command and automatically circuit breaker 1QF, 2QF, 3QF is carried out to divide-shut brake control, thereby realizes the automatic input of stand-by power supply, has automatically dropped into Controller exits.
This device not only can be realized segmentation prepared auto restart can also realize inlet wire prepared auto restart, and detailed process is as follows:
(1) segmentation prepared auto restart
1. the condition of normally moving
3QF is in a minute position, and 1QF, 2QF, 4QF, 5QF are all in closing position; I section, II section all has voltage, and segmentation prepared auto restart drops into switch in input state.
2. entry condition
Entry condition (a): the standby I section of II section, I section no-voltage, 1QF inlet wire no current, II section has voltage;
Entry condition (b): the standby II section of I section, II section no-voltage, 2QF inlet wire no current, I section has voltage.
3. course of action
For entry condition (a), if 1QF in "on" position, through time delay tripping 1QF, 3QF confirms to close after 1QF tripping; If 1QF is in open position, through the time delay 3QF that closes.
For entry condition (b), if 2QF in "on" position, through time delay tripping 2QF, 3QF confirms to close after 2QF tripping; If 2QF is in open position, through the time delay 3QF that closes.
4. exit criteria
3QF is in closing position, and prepared auto restart has moved, and has locking prepared auto restart input signal, and segmentation prepared auto restart is thrown to back out to close and exited.
(2) inlet wire prepared auto restart
1. normal running (operation) conditions
The standby inlet wire 1:1QF of inlet wire 2,3QF is in closing position, and 2QF is in a minute position, and I section, II section all have voltage, and inlet wire prepared auto restart drops into switch in input state;
The standby inlet wire 2:2QF of inlet wire 1,3QF are in closing position, and 1QF is in a minute position, and I section, II section all have voltage, and inlet wire prepared auto restart drops into switch in input state.
2. entry condition
Entry condition (a): the standby inlet wire 1 of inlet wire 2: bus no-voltage, inlet wire 1 no current, inlet wire 2 has voltage,
Entry condition (b): the standby inlet wire 2 of inlet wire 1: bus no-voltage, inlet wire 2 no currents, inlet wire 1 has voltage
3. course of action
For entry condition (a): 2QF in a minute position, if 1QF in "on" position, through time delay tripping 1QF, the 2QF that confirms to close after 1QF tripping, if 1QF is in open position, through the time delay 2QF that closes;
For entry condition (b): 1QF in a minute position, if 2QF in "on" position, through time delay tripping 2QF, the 1QF that confirms to close after 2QF tripping, if 2QF is in open position, through the time delay 1QF that closes.
4. exit criteria
1QF, 2QF is in closing position, and prepared auto restart has moved, and has locking prepared auto restart input signal, and segmentation prepared auto restart is thrown to back out to close and is exited.
The utlity model has following advantage:
1, this novel employing Siemens LOGO! Controller forms a whole the components and parts of whole backup auto-activating device, and by LOGO! Controller carries out divide-shut brake control to circuit breaker 1QF, 2QF, 3QF automatically, therefore have advantages of compact conformation, wiring is simple, reliability is high.
2, this Siemens LOGO! Controller has manually, automatic operation; Prefabricated basic function; Interface for expansion module; Input/output interface; And user can customize program, therefore powerful, the scope of application is wide, and logical program is flexible, more intelligent, and can realize man-machine interaction by touch-screen, safe and reliable, practical.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (4)
1. a duplicate supply backup auto-activating device, comprise: 1# power supply and 2# power supply, this 1# power supply is connected successively after circuit breaker 4QF, transformer 1TH, circuit breaker 1QF and current transformer 1TA and is connected on first paragraph bus, 2# power supply is connected successively after circuit breaker 5QF, transformer 2TH, circuit breaker 2QF and current transformer 2TA and is connected on second segment bus, first paragraph bus connects second segment bus by circuit breaker 3QF, wherein, the voltage signal of circuit breaker 1QF, 2QF, 3QF, 1# power supply and 2# power supply is connected to LOGO! On controller.
2. a kind of duplicate supply backup auto-activating device according to claim 1, is characterized in that: above-mentioned LOGO! The model of controller be LOGO! 230RC.
3. a kind of duplicate supply backup auto-activating device according to claim 1, is characterized in that: described controller is provided with segmentation prepared auto restart input switch and pass is backed out in the throwing of segmentation prepared auto restart.
4. a kind of duplicate supply backup auto-activating device according to claim 1, is characterized in that: described controller is provided with inlet wire prepared auto restart input switch and pass is backed out in the throwing of inlet wire prepared auto restart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320582261.XU CN203491774U (en) | 2013-09-18 | 2013-09-18 | Double power supply backup automatic switching apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320582261.XU CN203491774U (en) | 2013-09-18 | 2013-09-18 | Double power supply backup automatic switching apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN203491774U true CN203491774U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320582261.XU Expired - Lifetime CN203491774U (en) | 2013-09-18 | 2013-09-18 | Double power supply backup automatic switching apparatus |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578386A (en) * | 2014-12-25 | 2015-04-29 | 国家电网公司 | Automatic bus transfer circuit and method for transformer low-voltage side section breakers |
| CN104810919A (en) * | 2015-05-18 | 2015-07-29 | 安徽鑫龙电器股份有限公司 | Automatic switching device and method based on standby power supply |
| CN104953702A (en) * | 2015-06-30 | 2015-09-30 | 大唐桂冠合山发电有限公司 | Power supply switching method based on DCS (distributed control system) |
| CN105119366A (en) * | 2015-09-01 | 2015-12-02 | 杨益 | Dual-transformer low-voltage power switch connection switching system and working method thereof |
| CN113489134A (en) * | 2021-07-16 | 2021-10-08 | 中国恩菲工程技术有限公司 | Multi-power-supply automatic switching control system and control method |
| CN114336947A (en) * | 2022-01-04 | 2022-04-12 | 中国电建集团成都勘测设计研究院有限公司 | Automatic standby power supply switching system and method |
-
2013
- 2013-09-18 CN CN201320582261.XU patent/CN203491774U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578386A (en) * | 2014-12-25 | 2015-04-29 | 国家电网公司 | Automatic bus transfer circuit and method for transformer low-voltage side section breakers |
| CN104810919A (en) * | 2015-05-18 | 2015-07-29 | 安徽鑫龙电器股份有限公司 | Automatic switching device and method based on standby power supply |
| CN104953702A (en) * | 2015-06-30 | 2015-09-30 | 大唐桂冠合山发电有限公司 | Power supply switching method based on DCS (distributed control system) |
| CN104953702B (en) * | 2015-06-30 | 2017-06-13 | 大唐桂冠合山发电有限公司 | A kind of power-supply switching method based on DCS |
| CN105119366A (en) * | 2015-09-01 | 2015-12-02 | 杨益 | Dual-transformer low-voltage power switch connection switching system and working method thereof |
| CN113489134A (en) * | 2021-07-16 | 2021-10-08 | 中国恩菲工程技术有限公司 | Multi-power-supply automatic switching control system and control method |
| CN114336947A (en) * | 2022-01-04 | 2022-04-12 | 中国电建集团成都勘测设计研究院有限公司 | Automatic standby power supply switching system and method |
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Granted publication date: 20140319 |