CN105281417B - A kind of device for preventing low-voltage power supply branch cyclization - Google Patents
A kind of device for preventing low-voltage power supply branch cyclization Download PDFInfo
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- CN105281417B CN105281417B CN201510823445.4A CN201510823445A CN105281417B CN 105281417 B CN105281417 B CN 105281417B CN 201510823445 A CN201510823445 A CN 201510823445A CN 105281417 B CN105281417 B CN 105281417B
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- amplifier
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- cyclization
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- contactor
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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
- Y04S20/221—General power management systems
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Abstract
The present invention provides a kind of device technique schemes for preventing low-voltage power supply branch cyclization, and including the two-way low-voltage alternating-current branch for same load supplying, air switch, recoverable button, contactor are respectively provided on Liang Gezhi roads；Current transformer is both provided on two low-voltage alternating-current branch roads, the current transformer is connect with controller, and the controller is connect by warning circuit with alarm.The device of the program avoids exchanging branch cyclization, and can monitor in real time to the same two-way being powered that loads, once finding that cyclization phenomenon can timely alarm, avoids the generation of peril.
Description
Technical field
The present invention relates to a kind of devices for preventing low-voltage power supply branch cyclization.
Background technology
In the prior art, well known technology is that in recent years, with socio-economic development, national substation is especially intelligent
Substation's quantity is on the increase, and interior exchange screen equipment of especially standing to electrical secondary system in substation carries out dual power supply safe power supply and shows
It obtains particularly important.On the current technology, it is numerous to carry out secondary AC number of devices in the station of dual power supply, but because design
Reason often will appear the situation of two-way power supply cyclization at air switch, directly affect ac power supply system even prestige in station
Side of body ground connection becomes high-pressure side safety., this is the shortcoming present in the prior art.
Invention content
The purpose of the present invention is aiming at the deficiency present in the prior art, and providing one kind prevents low-voltage power supply branch from closing
The device technique scheme of ring, the device of the program avoid exchanging branch cyclization, and can to the same two-way being powered that loads
To monitor in real time, once finding that cyclization phenomenon can timely alarm, the generation of peril is avoided.
This programme is achieved by the following technical measures：A kind of device for preventing low-voltage power supply branch cyclization, including
For the two-way low-voltage alternating-current branch of same load supplying, it is characterized in that：The first sky is serially connected on the first low-voltage alternating-current branch L1
Air cock K1, the first recoverable button QA1, first contactor C1；The second air is concatenated on the second low-voltage alternating-current branch L2 to open
Close K2, the second recoverable button QA2, second contactor C2, the first contact C1-1 and the first recoverable button of first contactor
QA1 is in parallel, and the second contact C1-2 of first contactor connects with second contactor C2, the first contact C2-1 of second contactor and
Second recoverable button QA2 is in parallel, and the second contact C2-2 of second contactor connects with first contactor C1, in addition, at two
Low-voltage alternating-current branch road is both provided with current transformer, and the current transformer is connect with controller, and the controller leads to
Warning circuit is crossed to connect with alarm.
The reverse side of the warning circuit including the first amplifier IC1, the first amplifier IC1 by the 8th resistance R8 with
Controller connects, and the reverse side of the first amplifier IC1 is connect by first resistor R1 with 7 feet of the first amplifier IC1, and first puts
The non-invert side of big device IC1 is grounded by second resistance R2 and 3rd resistor R3, and the non-invert side of the first amplifier IC1 passes through the
Nine resistance R9 are connect with+VCC, and the 4 feet ground connection of the first amplifier IC1,7 feet of the first amplifier IC1 pass through slide rheostat RB
It is connect with 6 feet of the first amplifier IC1, the first amplifier IC16 feet pass through the first capacitance C1, first diode D1 and second
The non-invert side connection of amplifier IC2, the reverse side of the second amplifier IC2 are grounded by 3rd resistor R3, the second amplifier IC2
Non-invert side by the 4th resistance R4 with ground connection, the non-invert side of the second amplifier IC2 passes through first diode D1, the 5th
Resistance R5 is grounded, and the 4 feet ground connection of the second amplifier IC2,7 feet of the second amplifier IC2 are connect with+VCC, the second amplifier IC2
6 feet connect by the 6th resistance with the base stage of a triode VT, the emitter of triode VT ground connection, the current collection of triode VT
Pole is connect by alarm B with+VCC.
The alarm lamp is Light-emitting diode LED.
+ the VCC is 12V.
The alarm is buzzer.
Have that the 7th resistance R7 is in parallel with the alarm B, the 7th resistance is connected with an alarm lamp.
The triode is NPN triode.
The controller is connect with a 3G module.
The advantageous effect of this programme can learn according to the narration of said program, due to two contactors in this scenario
In the presence of, it can realize the switching interlocking of two circuits, avoid powering simultaneously, and have the presence of current sensor, it can be timely
The current conditions for detecting two circuits, controller can control alarm equipment alarm, and lead to according to the situation of two circuits
Cross mobile phone or control platform that 3G module will send information to setting；When two current sensors, only there are one detect electric current
When, illustrate not form cyclization, if having electric current, controller just controls alarm to alarm, and avoids the generation of accident.
Two branches are alternating current 220V.It can be seen that compared with prior art, the present invention with prominent substantive distinguishing features and significantly
Progress, implement advantageous effect be also obvious.
Description of the drawings
Fig. 1 is the schematic diagram of the specific embodiment of the invention.
Fig. 2 is the circuit diagram of warning circuit.
Specific embodiment
In order to clarify the technical characteristics of the invention, below by a specific embodiment, and its attached drawing is combined, it is right
This programme is illustrated.
By attached drawing as can be seen that a kind of device for preventing low-voltage power supply branch cyclization of this programme, including being same negative
The two-way low-voltage alternating-current branch of power supply is carried, the first air switch K1, the first return are serially connected on the first low-voltage alternating-current branch L1
Formula button QA1, first contactor C1；The second air switch K2 is concatenated on the second low-voltage alternating-current branch L2, second recoverable is pressed
Button QA2, second contactor C2, the first contact C1-1 of first contactor is in parallel with the first recoverable button QA1, first contactor
The second contact C1-2 connect with second contactor C2, the recoverable button QA2 of the first contact C2-1 of second contactor and second
Parallel connection, the second contact C2-2 of second contactor connect with first contactor C1, in addition, being set on the first low-voltage alternating-current branch L1
First current transformer T1 is put, second current transformer T2, the electric current are set on the second low-voltage alternating-current branch L2
Mutual inductor is connect with controller, and the controller is connect by warning circuit with alarm.The controller and a 3G module
Connection.
The reverse side of the warning circuit including the first amplifier IC1, the first amplifier IC1 by the 8th resistance R8 with
Controller connects, and the reverse side of the first amplifier IC1 is connect by first resistor R1 with 7 feet of the first amplifier IC1, and first puts
The non-invert side of big device IC1 is grounded by second resistance R2 and 3rd resistor R3, and the non-invert side of the first amplifier IC1 passes through the
Nine resistance R9 are connect with+VCC, and the 4 feet ground connection of the first amplifier IC1,7 feet of the first amplifier IC1 pass through slide rheostat RB
It is connect with 6 feet of the first amplifier IC1, the first amplifier IC16 feet pass through the first capacitance C1, first diode D1 and second
The non-invert side connection of amplifier IC2, the reverse side of the second amplifier IC2 are grounded by 3rd resistor R3, the second amplifier IC2
Non-invert side by the 4th resistance R4 with ground connection, the non-invert side of the second amplifier IC2 passes through first diode D1, the 5th
Resistance R5 is grounded, and the 4 feet ground connection of the second amplifier IC2,7 feet of the second amplifier IC2 are connect with+VCC, the second amplifier IC2
6 feet connect by the 6th resistance with the base stage of a triode VT, the emitter of triode VT ground connection, the current collection of triode VT
Pole is connect by alarm B with+VCC.The alarm lamp is Light-emitting diode LED.+ the VCC is 12V.The report
Alert device is buzzer.Have that the 7th resistance R7 is in parallel with the alarm B, the 7th resistance is connected with an alarm lamp.Institute
The triode stated is NPN triode.
The present invention is not limited in above-mentioned specific embodiment, and those of ordinary skill in the art are in the essential scope of the present invention
The variations, modifications, additions or substitutions inside made should also belong to the scope of protection of the present invention.
Claims (5)
1. a kind of device for preventing low-voltage power supply branch cyclization, including the two-way low-voltage alternating-current branch for same load supplying,
It is characterized in：The first air switch K1, the first recoverable button QA1, the first contact are serially connected on the first low-voltage alternating-current branch L1
Device M1；The second air switch K2, the second recoverable button QA2, second contactor C2 are concatenated on the second low-voltage alternating-current branch L2,
First contact M1-1 of first contactor is in parallel with the first recoverable button QA1, the second contact M1-2 of first contactor and
Two contactor C2 connect, and the first contact C2-1 of second contactor is in parallel with the second recoverable button QA2, and the of second contactor
Two contact C2-2 connect with first contactor M1, in addition, current transformer is both provided on two low-voltage alternating-current branch roads, it is described
Current transformer connect with controller, the controller is connect by warning circuit with alarm；The controller and one
3G module connects；
The reverse side that the warning circuit includes the first amplifier IC1, the first amplifier IC1 passes through the 8th resistance R8 and control
Device connects, and the reverse side of the first amplifier IC1 is connect by first resistor R1 with 7 feet of the first amplifier IC1, the first amplifier
The non-invert side of IC1 is grounded by second resistance R2 and 3rd resistor R3, and the non-invert side of the first amplifier IC1 passes through the 9th electricity
Resistance R9 is connect with+VCC, and 4 feet of the first amplifier IC1 are grounded, and 7 feet of the first amplifier IC1 pass through slide rheostat RB and the
The 6 feet connection of one amplifier IC1, the first amplifier IC16 feet are amplified by the first capacitance C1, first diode D1 and second
The non-invert side connection of device IC2, the reverse side of the second amplifier IC2 are grounded by 3rd resistor R3, and the second amplifier IC2's is non-
Reverse side is grounded by the 4th resistance R4, and the non-invert side of the second amplifier IC2 passes through first diode D1, the 5th resistance R5
Ground connection, the 4 feet ground connection of the second amplifier IC2,7 feet of the second amplifier IC2 are connect with+VCC, and 6 feet of the second amplifier IC2 lead to
It crosses the 6th resistance to connect with the base stage of a triode VT, the emitter ground connection of triode VT, the collector of triode VT passes through
Alarm B is connect with+VCC, there is that the 7th resistance R7 is in parallel with the alarm B, the 7th resistance and an alarm lamp string
Connection.
2. the device according to claim 1 for preventing low-voltage power supply branch cyclization, it is characterized in that：The alarm lamp is hair
Optical diode LED.
3. the device according to claim 1 for preventing low-voltage power supply branch cyclization, it is characterized in that：+ the VCC is 12V.
4. the device according to claim 1 for preventing low-voltage power supply branch cyclization, it is characterized in that：The alarm is bee
Ring device.
5. the device according to claim 1 for preventing low-voltage power supply branch cyclization, it is characterized in that：The triode is
NPN triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510823445.4A CN105281417B (en) | 2015-11-24 | 2015-11-24 | A kind of device for preventing low-voltage power supply branch cyclization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510823445.4A CN105281417B (en) | 2015-11-24 | 2015-11-24 | A kind of device for preventing low-voltage power supply branch cyclization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105281417A CN105281417A (en) | 2016-01-27 |
| CN105281417B true CN105281417B (en) | 2018-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510823445.4A Active CN105281417B (en) | 2015-11-24 | 2015-11-24 | A kind of device for preventing low-voltage power supply branch cyclization |
Country Status (1)
| Country | Link |
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| CN (1) | CN105281417B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2874898Y (en) * | 2006-02-23 | 2007-02-28 | 蔡军 | Double power source switch device |
| CN201478875U (en) * | 2009-08-25 | 2010-05-19 | 苏州柳溪机电工程有限公司 | Double-power automatic conversion cabinet |
| CN102222969A (en) * | 2011-06-13 | 2011-10-19 | 安徽理士电池技术有限公司 | Dual power supply circuit system |
| CN102879629A (en) * | 2011-07-12 | 2013-01-16 | 淮南矿业(集团)有限责任公司 | Caution device for electric system and electric system |
| CN104184131A (en) * | 2013-05-27 | 2014-12-03 | 深圳市海洋王照明工程有限公司 | Alarm circuit |
| CN104201768A (en) * | 2014-09-29 | 2014-12-10 | 蒙毅嘉 | Double-power switch control device |
| KR101522998B1 (en) * | 2013-12-17 | 2015-05-26 | 오텍캐리어 주식회사 | Power source switching apparatus |
| CN205283235U (en) * | 2015-11-24 | 2016-06-01 | 国网山东省电力公司济南供电公司 | Device for preventing low pressure power supply branch road closes ring |
-
2015
- 2015-11-24 CN CN201510823445.4A patent/CN105281417B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2874898Y (en) * | 2006-02-23 | 2007-02-28 | 蔡军 | Double power source switch device |
| CN201478875U (en) * | 2009-08-25 | 2010-05-19 | 苏州柳溪机电工程有限公司 | Double-power automatic conversion cabinet |
| CN102222969A (en) * | 2011-06-13 | 2011-10-19 | 安徽理士电池技术有限公司 | Dual power supply circuit system |
| CN102879629A (en) * | 2011-07-12 | 2013-01-16 | 淮南矿业(集团)有限责任公司 | Caution device for electric system and electric system |
| CN104184131A (en) * | 2013-05-27 | 2014-12-03 | 深圳市海洋王照明工程有限公司 | Alarm circuit |
| KR101522998B1 (en) * | 2013-12-17 | 2015-05-26 | 오텍캐리어 주식회사 | Power source switching apparatus |
| CN104201768A (en) * | 2014-09-29 | 2014-12-10 | 蒙毅嘉 | Double-power switch control device |
| CN205283235U (en) * | 2015-11-24 | 2016-06-01 | 国网山东省电力公司济南供电公司 | Device for preventing low pressure power supply branch road closes ring |
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| Publication number | Publication date |
|---|---|
| CN105281417A (en) | 2016-01-27 |
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