CN203326704U - Backup power supply automatic switching apparatus - Google Patents
Backup power supply automatic switching apparatus Download PDFInfo
- Publication number
- CN203326704U CN203326704U CN2013203634654U CN201320363465U CN203326704U CN 203326704 U CN203326704 U CN 203326704U CN 2013203634654 U CN2013203634654 U CN 2013203634654U CN 201320363465 U CN201320363465 U CN 201320363465U CN 203326704 U CN203326704 U CN 203326704U
- Authority
- CN
- China
- Prior art keywords
- acquisition unit
- data acquisition
- plc controller
- circuit module
- casing
- 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 - Lifetime
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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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- Keying Circuit Devices (AREA)
Abstract
The utility model discloses a backup power supply automatic switching apparatus. The apparatus comprises a casing; the casing is internally provided with a circuit module; the front surface of the casing is provided with a control panel connected with the circuit module; the circuit module is provided with a PLC, and two relays capable of monitoring the open-phase and phase sequence of current and voltage; the PLC is connected with the two relays; the two relays are respectively connected with the wire inlet terminals of two power supplies; the PLC is provided with a switch device data acquisition unit; and the switch device data acquisition unit is connected with a leakage current sensor through a signal line and is connected with a voltage transformer and a current transformer through a cable conductor. According to the utility model, the switch device data acquisition unit is arranged on the PLC so that current leakage in a circuit can be movably detected or the voltage and current can be transformed for supplying power to an application apparatus so as to protect the application apparatus by means of the leakage current sensor, the voltage transformer and the current transformer which are connected with the switch device data acquisition unit.
Description
Technical field
The utility model relates to a kind of electric switch controller, particularly a kind of automatic change-over device of emergency.
Background technology
Existing switch cubicle control device, it only has a power supply to the power supply of PLC controller, and therefore when this circuit has problem, the PLC controller just can not get electricity, and whole controller just can not have been worked.With the existing patent of time image, the patent No. is 200420025791.5, and name is called automatic change-over device of emergency the switchgear data acquisition unit is not set, and can not detect the parameters such as leakage current, dwindle detection range, reduced the scope of application of power supply automatic switching device.
Summary of the invention
Technical problem to be solved in the utility model is for the deficiencies in the prior art, provides a kind of reasonable in design, easy to use, the automatic change-over device of emergency of modularized design.
Technical problem to be solved in the utility model is to realize by following technical scheme, the utility model is a kind of automatic change-over device of emergency, be characterized in: comprise casing, be provided with circuit module in casing, the front of casing is provided with the control panel be connected with circuit module, circuit module is provided with PLC controller and two can monitor supply voltage, phase shortage, the relay of phase sequence, PLC controller and two relays join, two relays join with the end of incoming cables of two power supplys respectively, described PLC controller is provided with the switchgear data acquisition unit, the switchgear data acquisition unit is connected with leakage current sensor by holding wire, be connected with the voltage transformer summation current transformer by cable.
Technical problem to be solved in the utility model can also further realize that by following technical scheme described PLC controller employing DC power supply is taken from one in two power supplys in parallel after rectifier bridge respectively mutually, then joined with the PLC controller.
Compared with prior art; the utility model by being provided with the switchgear data acquisition unit on the PLC controller; leakage current sensor by joining with the switchgear data acquisition unit, voltage transformer summation current transformer can moving detecting circuit in electric leakage situation or voltage of transformation electric current; to the operative installations power supply, for the protection of operative installations.
The accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model.
Embodiment
Referring to accompanying drawing, further describe concrete technical scheme of the present utility model, so that those skilled in the art understands the utility model further, and do not form the restriction to its right.
With reference to accompanying drawing 1, a kind of automatic change-over device of emergency, comprise casing, be provided with circuit module in casing, the front of casing is provided with the control panel be connected with circuit module, circuit module is provided with PLC controller and two can monitor supply voltage, phase shortage, the relay of phase sequence, PLC controller and two relays join, two relays join with the end of incoming cables of two power supplys respectively, by relay, electric power incoming line is monitored, when overvoltage appears in power supply, under-voltage, during the phenomenons such as phase shortage, separate main power switch, closed Backup Power Switch, continuation is powered to the PLC controller.Described PLC controller is provided with the switchgear data acquisition unit, and the switchgear data acquisition unit is connected with leakage current sensor, by cable, is connected with the voltage transformer summation current transformer by holding wire.The utility model mainly is contained in the double circuit power supply place, during on-the-spot the installation, after directly this device being in place, leakage current sensor, voltage transformer summation current transformer are arranged on respectively to corresponding position, for detection of the voltage and current on line electrical leakage situation, conversion line.
Described PLC controller adopts DC power supply, takes from one in two power supplys in parallel after rectifier bridge respectively mutually, then joins with the PLC controller.
Claims (2)
1. an automatic change-over device of emergency, it is characterized in that: comprise casing, be provided with circuit module in casing, the front of casing is provided with the control panel be connected with circuit module, circuit module is provided with PLC controller and two can monitor supply voltage, phase shortage, the relay of phase sequence, PLC controller and two relays join, two relays join with the end of incoming cables of two power supplys respectively, described PLC controller is provided with the switchgear data acquisition unit, the switchgear data acquisition unit is connected with leakage current sensor by holding wire, be connected with the voltage transformer summation current transformer by cable.
2. automatic change-over device of emergency according to claim 1 is characterized in that: described PLC controller adopts DC power supply, takes from one in two power supplys in parallel after rectifier bridge respectively mutually, then joins with the PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203634654U CN203326704U (en) | 2013-06-24 | 2013-06-24 | Backup power supply automatic switching apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203634654U CN203326704U (en) | 2013-06-24 | 2013-06-24 | Backup power supply automatic switching apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203326704U true CN203326704U (en) | 2013-12-04 |
Family
ID=49665998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203634654U Expired - Lifetime CN203326704U (en) | 2013-06-24 | 2013-06-24 | Backup power supply automatic switching apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203326704U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991155A (en) * | 2015-07-17 | 2015-10-21 | 国网山西省电力公司大同供电公司 | A safety detection device for transformers |
| CN106026370A (en) * | 2016-07-27 | 2016-10-12 | 国网山东省电力公司东营供电公司 | PLC-based 110kV transformer substation DC power supply system backup device |
-
2013
- 2013-06-24 CN CN2013203634654U patent/CN203326704U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991155A (en) * | 2015-07-17 | 2015-10-21 | 国网山西省电力公司大同供电公司 | A safety detection device for transformers |
| CN104991155B (en) * | 2015-07-17 | 2018-02-02 | 国网山西省电力公司大同供电公司 | A kind of security detection equipment for transformer |
| CN106026370A (en) * | 2016-07-27 | 2016-10-12 | 国网山东省电力公司东营供电公司 | PLC-based 110kV transformer substation DC power supply system backup device |
| CN106026370B (en) * | 2016-07-27 | 2018-06-29 | 国网山东省电力公司东营供电公司 | A kind of 110kV transforming plant DC power-supply system stand-by provisions based on PLC |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
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| CX01 | Expiry of patent term |