CN104753169B - Breaker interlocking and interchanging circuit of dual power supply inlet wire power supply and distribution system - Google Patents
Breaker interlocking and interchanging circuit of dual power supply inlet wire power supply and distribution system Download PDFInfo
- Publication number
- CN104753169B CN104753169B CN201510064620.6A CN201510064620A CN104753169B CN 104753169 B CN104753169 B CN 104753169B CN 201510064620 A CN201510064620 A CN 201510064620A CN 104753169 B CN104753169 B CN 104753169B
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- breaker
- normally
- circuit
- power supply
- electronic circuit
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- 230000009977 dual effect Effects 0.000 title abstract 2
- 230000005611 electricity Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract 3
- 238000010168 coupling process Methods 0.000 abstract 3
- 238000005859 coupling reaction Methods 0.000 abstract 3
- 238000000926 separation method Methods 0.000 description 6
- 230000007257 malfunction Effects 0.000 description 1
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
-
- 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 invention discloses a breaker interlocking and interchanging circuit of a dual power supply inlet wire power supply and distribution system. The breaker interlocking and interchanging circuit is mainly used for solving the problem that interlocking and interchanging cannot be performed once one breaker is removed in an existing technology. The breaker interlocking and interchanging circuit comprises a bus coupling cabinet, a first power receiving cabinet and a second power receiving cabinet, wherein the first and second power receiving cabinets are connected with the bus coupling cabinet through segmented bus bars; the first power receiving cabinet is connected into a first breaker, the second power receiving cabinet is connected into a second breaker, and the bus coupling cabinet is connected into a breaker; the breaker interlocking and interchanging circuit comprises a first sub-circuit, a second sub-circuit and a third sub-circuit; the third sub-circuit is electrically connected with the first sub-circuit or the second sub-circuit through power selection switches. After the breaker in one of sub-circuits is removed, corresponding contacts in other sub-circuits are closed and the breakers are closed, thus another two breakers cannot be affected and interlocking and interchanging operations cannot be also affected.
Description
Technical field
The present invention relates to a kind of breaker of power supply entering line power supply-distribution system interlocks mutually for circuit.
Background technology
It is subject to the breaker interlocking of electric cabinet and mother cabinet to be mutually by disconnected for state in existing power supply entering line power supply-distribution system
Device self-contained normally-open normally-close point in road is carried out.Once breaker break down need to safeguard when, after breaker is drawn out of, former
First state point is all hanging, in off-state, former interlocking mutually for circuit malfunction, to for the continuity of distribution and the efficiency producing
Impact.
Content of the invention
For the problems referred to above, the present invention provides a kind of breaker of power supply entering line power supply-distribution system to interlock mutually for circuit,
With solve the problems, such as in prior art Yi Dan a breaker be drawn out of after just cannot interlock mutually standby.
For reaching above-mentioned purpose, power supply entering line power supply-distribution system of the present invention include mother cabinet and by sectionalized busbar with
What described mother cabinet connected first is subject to electric cabinet, second is subject to electric cabinet, and described first is subject on electric cabinet to be connected with the first breaker, and described the
Two are subject to be connected with the second breaker on electric cabinet, and described mother cabinet is connected with the 3rd breaker, described breaker interlocking mutually standby electricity
Road includes the first electronic circuit, the second electronic circuit and the 3rd electronic circuit；
Wherein, the first electronic circuit includes the first breaker, after wherein said first breaker is connected with the first opening button
Be connected between the first live wire and the first zero line, described first breaker and the first switch knob, the second breaker first normal
Closed contact is connected to after being sequentially connected in series between the first live wire and the first zero line, the first normally-closed contact of the 3rd breaker, in the middle of
The contact of relay is connected in parallel with the first normally-closed contact of described second breaker respectively；
Second electronic circuit includes the second breaker, and the wherein second breaker is connected to second after connecting with the second opening button
Between live wire and the second zero line, the second breaker is sequentially connected in series with the second normally-closed contact of the second switch knob, the first breaker
After be connected between the second live wire and the second zero line, the second normally-closed contact of the 3rd breaker, the contact of described auxiliary reclay
It is connected in parallel with the second normally-closed contact of described first breaker respectively；
3rd electronic circuit includes the 3rd breaker, and the wherein the 3rd breaker is connected to the 3rd after connecting with the 3rd opening button
Between live wire and the 3rd zero line, the 3rd breaker is sequentially connected in series with the first normally-closed contact of the 3rd switch knob, the first breaker
After be connected between the 3rd live wire and the 3rd zero line, the first normally-closed contact of the second breaker, the limit switch of the first breaker
Normally-closed contact, the second breaker limit switch normally-closed contact in parallel with the first normally-closed contact of described first breaker respectively,
It is connected to the 3rd live wire and the 3rd after the limit switch normally-closed contact series connection of the coil of described auxiliary reclay and the 3rd breaker
Between zero line；
3rd electronic circuit is passed through power selection switch and is connected with the first electronic circuit or the energising of the second electronic circuit.By the 3rd open circuit
After device is extracted out, the 3rd breaker is in " separation " state, now the limit switch normally-closed contact closure of the 3rd breaker, continues in centre
The coil of electrical equipment is powered, thus the closing of contact of the auxiliary reclay in the first electronic circuit, the second electronic circuit, the first electronic circuit,
Effectively, the first breaker, the second breaker can put into " combined floodgate " state to the closing circuit of the second electronic circuit.When the first electronic circuit is
3rd electronic circuit provides power supply, and after the second breaker is extracted out, the second breaker is in " separation " state, now the second breaker
Limit switch normally-closed contact closure, effectively, the therefore the 3rd breaker can put into " combined floodgate " to the closing circuit in the 3rd electronic circuit.
If the 3rd breaker does not put into " combined floodgate " state, that is, it is in " separating brake " state, now the normally-closed contact closure of the 3rd breaker,
Effectively, the first breaker can put into " combined floodgate " state to closing circuit in first electronic circuit.When the second electronic circuit is the 3rd son electricity
When road provides power supply, after the first breaker is extracted out, the first breaker is in " separation " state, and now the first breaker is spacing
The normally closed closure of getting an electric shock of switch, effectively, the therefore the 3rd breaker can put into " combined floodgate " to the closing circuit in the 3rd electronic circuit.If the
Three breakers are introduced into " combined floodgate " state, that is, be in " separating brake " state, now the normally-closed contact closure of the 3rd breaker, the second son
Effectively, the second breaker can put into " combined floodgate " state to closing circuit in circuit.Gone out it is known that working as a breaker by above-mentioned analysis
When showing fault therefore drawing it out, in addition two breakers are unaffected, all can put into " combined floodgate " state, so interlocking is mutually standby working not
Can be affected.
Brief description
Fig. 1 is the structural representation of first electronic circuit of the present invention；
Fig. 2 is the structural representation of second electronic circuit of the present invention；
Fig. 3 is the structural representation of the 3rd electronic circuit of the present invention；
Specific embodiment
With reference to Figure of description, the present invention will be further described.
The present invention provides a kind of breaker interlocking of power supply entering line power supply-distribution system mutually for circuit, and power supply entering line is for joining
Electric system includes mother cabinet and is subject to electric cabinet, second is subject to electric cabinet by sectionalized busbar is connected with described mother cabinet first, described
First is subject on electric cabinet to be connected with the first breaker, and described second is subject to be connected with the second breaker on electric cabinet, and described mother cabinet connects
It is connected to the 3rd breaker.
Described breaker interlocking mutually includes the first electronic circuit, the second electronic circuit and the 3rd electronic circuit for circuit.
As Figure 1-3, the first electronic circuit includes the first breaker 1QL, wherein this first breaker 1QL and the first separating brake
It is connected between the first live wire 1QL-L1 and the first zero line 1QL-N after button SB1 series connection, this first breaker 1QL and first conjunction
Lock button SB2, the first normally-closed contact 2QL-NC1 of the second breaker are connected to the first live wire 1QL-L1 and first after being sequentially connected in series
Between zero line 1QL-N, the first normally-closed contact 3QL-NC1 of the 3rd breaker, the contact of auxiliary reclay KA are respectively with described
First normally-closed contact 2QL-NC1 of two breakers is connected in parallel.
Second electronic circuit includes the second breaker 2QL, after the wherein second breaker 2QL is connected with the second opening button SB3
Be connected between the second live wire 2QL-L1 and the second zero line 2QL-N, the second breaker 2QL and the second switch knob SB4, first break
Second normally-closed contact 1QL-NC2 of road device is connected between the second live wire and the second zero line after being sequentially connected in series, the 3rd breaker
Second normally-closed contact 3QL-NC2, contact second normally-closed contact with described first breaker respectively of described auxiliary reclay KA
1QL-NC2 is connected in parallel.
3rd electronic circuit includes the 3rd breaker 3QL, after the wherein the 3rd breaker 3QL is connected with the 3rd opening button SB5
Be connected between the 3rd live wire 3QL-L1 and the 3rd zero line 3QL-N, the 3rd breaker 3QL and the 3rd switch knob SB6, first break
First normally-closed contact 1QL-NC1 of road device is connected between the 3rd live wire and the 3rd zero line after being sequentially connected in series, the second breaker
First normally-closed contact 2QL-NC1, the limit switch normally-closed contact 1QL-SQ of the first breaker, the second breaker limit switch normal
Closed contact 2QL-SQ is in parallel with the first normally-closed contact 1QL-NC1 of described first breaker respectively, described auxiliary reclay KA's
It is connected between the 3rd live wire and the 3rd zero line after the limit switch normally-closed contact 3QL-SQ series connection of coil and the 3rd breaker.
The interlocking of described breaker mutually also includes power selection switch for circuit, the 3rd electronic circuit pass through power selection switch with
First electronic circuit or the energising of the second electronic circuit connect.
It is specially：The live wire of described power selection switch selects the one end at end to connect the 3rd live wire 3QL-L1, the other end with
First live wire 1QL-L1 or the second live wire 2QL-L1 connects；Zero line selects the one end at end to connect the 3rd zero line 3QL-N, the other end
Connect with corresponding first zero line 1QL-N or the second zero line 2QL-N.If the live wire of power selection switch select the other end at end with
First live wire 1QL-L1 connects, and zero line selects the other end at end to connect with corresponding first zero line 1QL-N, and the first electronic circuit is the
Three electronic circuits provide power supply；If the live wire of power selection switch selects the other end at end to be connected with the second live wire 2QL-L1, zero line
The other end selecting end is connected with corresponding second zero line 2QL-N, and the second electronic circuit provides power supply for the 3rd electronic circuit.
Wherein first breaker, the second breaker, the 3rd breaker all include shunt opening trip coil F, the conjunction being connected in parallel
Brake cable circle X and undervoltage trip coil Q.
Wherein first breaker, the second breaker and the 3rd breaker are open frame circuit breaker.
The normally-closed contact of each breaker, disconnects when corresponding breaker is " combined floodgate " state, is " separating brake " in this breaker
Close during state.The limit switch normally-closed contact of each breaker, normally closed when corresponding breaker is " separation " state, in this open circuit
Device is normally opened during " connection " state.When the coil of auxiliary reclay is powered, the closing of contact of auxiliary reclay；Auxiliary reclay
During coil blackout, the contact of auxiliary reclay disconnects.
Whether the first electronic circuit or the second electronic circuit are that the 3rd electronic circuit provides power supply, and the 3rd breaker is extracted out
Afterwards, the 3rd breaker is in " separation " state, now the limit switch normally-closed contact closure of the 3rd breaker, auxiliary reclay
Coil is powered, thus the closing of contact of the auxiliary reclay in the first electronic circuit, the second electronic circuit, the first electronic circuit, the second son
Effectively, the first breaker, the second breaker can put into " combined floodgate " state to the closing circuit of circuit.
When the first electronic circuit provides power supply for the 3rd electronic circuit, after the second breaker is extracted out, the second breaker is in and " divides
From " state, the now limit switch normally-closed contact closure of the second breaker, the closing circuit in the 3rd electronic circuit is effective, therefore
3rd breaker can put into " combined floodgate ".If the 3rd breaker does not put into " combined floodgate " state, that is, it is in " separating brake " state, now
The normally-closed contact closure of three breakers, effectively, the first breaker can put into " combined floodgate " state to the closing circuit in the first electronic circuit.
When the second electronic circuit provides power supply for the 3rd electronic circuit, after the first breaker is extracted out, the first breaker is in
" separation " state, the now normally closed closure of getting an electric shock of the limit switch of the first breaker, the closing circuit in the 3rd electronic circuit is effective, because
This 3rd breaker can put into " combined floodgate ".If the 3rd breaker is introduced into " combined floodgate " state, that is, it is in " separating brake " state, now
The normally-closed contact closure of the 3rd breaker, effectively, the second breaker can put into " combined floodgate " shape to the closing circuit in the second electronic circuit
State.
By above-mentioned analysis it is known that when a breaker breaks down therefore draws it out, in addition two breakers are unaffected,
" combined floodgate " state all can be put into, so interlocking is mutually unaffected for work.
More than, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, any it is familiar with basis
Those skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in, all should cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by the protection domain that claim is defined.
Claims (3)
1. a kind of breaker of power supply entering line power supply-distribution system interlocks mutually for circuit, and power supply entering line power supply-distribution system includes mother
Connection cabinet and be subject to electric cabinet, second be subject to electricity cabinet by sectionalized busbar is connected with described mother cabinet first, described first by electricity cabinet
It is connected with the first breaker, described second is subject to be connected with the second breaker on electric cabinet, and described mother cabinet is connected with the 3rd open circuit
Device it is characterised in that：Described breaker interlocking mutually includes the first electronic circuit, the second electronic circuit and the 3rd electronic circuit for circuit；
Wherein, the first electronic circuit includes the first breaker, and wherein said first breaker is connected after being connected with the first opening button
Between the first live wire and the first zero line, described first breaker and the first switch knob, the first of the second breaker normally closed touch
Point is connected between the first live wire and the first zero line after being sequentially connected in series, the first normally-closed contact of the 3rd breaker, a middle relay
The contact of device is connected in parallel with the first normally-closed contact of described second breaker respectively；
Second electronic circuit includes the second breaker, and the wherein second breaker is connected to the second live wire after connecting with the second opening button
With second between zero line, the second normally-closed contact of the second breaker and the second switch knob, the first breaker connects after being sequentially connected in series
It is connected between the second live wire and the second zero line, the second normally-closed contact of the 3rd breaker, the contact difference of described auxiliary reclay
It is connected in parallel with the second normally-closed contact of described first breaker；
3rd electronic circuit includes the 3rd breaker, and the wherein the 3rd breaker is connected to the 3rd live wire after connecting with the 3rd opening button
With the 3rd between zero line, the first normally-closed contact of the 3rd breaker and the 3rd switch knob, the first breaker connects after being sequentially connected in series
It is connected between the 3rd live wire and the 3rd zero line, the first normally-closed contact of the second breaker, the limit switch of the first breaker are normally closed
Contact, the second breaker limit switch normally-closed contact in parallel with the first normally-closed contact of described first breaker respectively, described
It is connected to the 3rd live wire and the 3rd zero line after the limit switch normally-closed contact series connection of the coil of auxiliary reclay and the 3rd breaker
Between；
3rd electronic circuit is passed through power selection switch and is connected with the first electronic circuit or the energising of the second electronic circuit.
2. power supply entering line power supply-distribution system according to claim 1 breaker interlocking mutually for circuit it is characterised in that：
Shunt opening trip coil that described first breaker, the second breaker, the 3rd breaker all include being connected in parallel, closing coil and owe
Pressure tripping coil.
3. power supply entering line power supply-distribution system according to claim 1 breaker interlocking mutually for circuit it is characterised in that：
Described first breaker, the second breaker and the 3rd breaker are open frame circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510064620.6A CN104753169B (en) | 2015-02-06 | 2015-02-06 | Breaker interlocking and interchanging circuit of dual power supply inlet wire power supply and distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510064620.6A CN104753169B (en) | 2015-02-06 | 2015-02-06 | Breaker interlocking and interchanging circuit of dual power supply inlet wire power supply and distribution system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104753169A CN104753169A (en) | 2015-07-01 |
| CN104753169B true CN104753169B (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510064620.6A Active CN104753169B (en) | 2015-02-06 | 2015-02-06 | Breaker interlocking and interchanging circuit of dual power supply inlet wire power supply and distribution system |
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| CN (1) | CN104753169B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983370A (en) * | 2020-08-31 | 2020-11-24 | 国网河南省电力公司濮阳供电公司 | Checking a calibrator equipped with a self-switching protection device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11296235A (en) * | 1998-04-09 | 1999-10-29 | Yamaha Corp | Power supply circuit and electric apparatus using the same |
| CN202260153U (en) * | 2011-10-14 | 2012-05-30 | 湖北长江电气有限公司 | Low voltage distribution two-input one-connect electrical interlock system |
| CN202353016U (en) * | 2011-11-29 | 2012-07-25 | 上海电器成套厂有限公司 | Two-incoming-line one-bus-contact auto-charge and auto-recovery circuit |
| CN104167812B (en) * | 2014-08-26 | 2016-09-21 | 国家电网公司 | Two enter a mother hauls oneself willingly into runback control system |
| CN204732956U (en) * | 2015-02-06 | 2015-10-28 | 中冶华天南京电气工程技术有限公司 | The circuit breaker interlocking standby circuit mutually of power supply entering line power supply-distribution system |
-
2015
- 2015-02-06 CN CN201510064620.6A patent/CN104753169B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104753169A (en) | 2015-07-01 |
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