CN108899176B - A kind of 400 volts of Open Type Electric Current Mutual Inductor components - Google Patents
A kind of 400 volts of Open Type Electric Current Mutual Inductor components Download PDFInfo
- Publication number
- CN108899176B CN108899176B CN201810280962.5A CN201810280962A CN108899176B CN 108899176 B CN108899176 B CN 108899176B CN 201810280962 A CN201810280962 A CN 201810280962A CN 108899176 B CN108899176 B CN 108899176B
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- CN
- China
- Prior art keywords
- phase
- split
- current
- mutual inductor
- copper bar
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention discloses a kind of 400 volts of Open Type Electric Current Mutual Inductor components, by the P1 phase current loop wiring inside low-voltage current mutual inductor, the wiring of P2 phase current loop and voltage circuit wiring are drawn respectively by wiring split-phase ejector, the integrated total wiring of measurement loop is formed after connecting with copper bar, it is connect again by split-phase connection dress with bus plug, the problem of avoiding phase voltage and phase current bridging, make the positional relationship of phase current wiring clear simultaneously, effectively prevent P1, P2 wiring error problem, so that low-voltage current mutual inductor is quick for installation, it is easy to maintain.Short-contact metal contact is when low-voltage current mutual inductor external impressed current lead-out wire is in extraction state, so that being mutually shorted between current loop split-phase hole, so that the secondary current for realizing current transformer under electriferous state is in short circuit state.
Description
Technical field
The present invention relates to a kind of 400 volts of Open Type Electric Current Mutual Inductor components for power engineering field.
Background technique
Low-voltage current mutual inductor when being installed with measurement loop, external lead-out wire be divided into the wiring of P1 phase current loop,
The wiring of P2 phase current loop and voltage circuit wiring, for any one in one group of three low-voltage current mutual inductor, P1 phase
Current circuit connections are required to be formed into a loop with P2 phase current loop wiring, while voltage circuit wiring is also required to according to determining
Current phase is accurately connected.The prior art is mainly by one group of 3 low-tension current by the way of fastened by screw connecting terminal
The lead-out wire of mutual inductor is attached, and three-phase voltage wiring is drawn, and such mounting means is easy to connect there are wiring polarity
Phenomenon wrong, line arrangement is in disorder, the problems such as voltage link and secondary current circuit are across phase connection, it is mutual which results in low-tension currents
There are erroneous for installation, easy error connections for sensor, and can not carry out livewire work.
Summary of the invention
The purpose of the invention is to overcome the deficiencies of the prior art and provide a kind of 400 volts of Open Type Electric Current Mutual Inductor groups
Part, the secondary current circuit connection and voltage link of low-voltage current mutual inductor easily can be drawn and be connected by it.
Realizing a kind of technical solution of above-mentioned purpose is: a kind of 400 volts of Open Type Electric Current Mutual Inductor components, including three electricity
Current transformer, split-phase attachment device and bus hub,
Each current transformer includes transformer housing and split-phase ejector；The split-phase ejector includes mutual
Sensor connector, split-phase plate and copper bar；The mutual inductor connector be plugged on the bottom of the transformer housing and with it is described mutually
Sensor shell is threadedly coupled, and the split-phase plate is connected to the bottom of the mutual inductor connector, offers 3 on the split-phase plate
A split-phase hole, three copper bars are plugged on from bottom to top in the split-phase hole, and the split-phase hole is stretched out in the lower end of the copper bar,
The wiring of P1 phase current loop, the wiring of P2 phase current loop and voltage circuit wiring in the current transformer respectively with three copper
Bar connects to form P1 copper bar, P2 copper bar and voltage copper bar；
The split-phase attachment device includes mutual inductor connecting pin and bus plug connecting pin；The mutual inductor connecting pin opens up
There are three connecting holes, respectively correspond the P1 copper bar, P2 copper bar and voltage copper bar of the split-phase ejector, and the bus plug connects
It connects end and sets that there are three the P1 copper bars, P2 copper bar and voltage copper bar that prominent connector corresponds to the split-phase ejector；The split-phase connects
Connection device connects the current transformer and the bus hub；
The side of the bus hub is set there are three current tap socket, and the prominent connector of three of each split-phase attachment device is inserted
It connects in a current tap socket；The other side of the bus hub is equipped with 9 total prominent connectors, each total prominent connector
Respectively one by one with the wiring of P1 phase current loop, the wiring of P2 phase current loop or the voltage circuit wiring of three current transformers
It is corresponding；The bus hub is connected by total prominent connector with electric-power metering circuit.
Further, insulating bushing is enclosed on the outside of the split-phase ejector.
Further, the short-contact metal contact of conducting P1 copper bar and P2 copper bar is equipped between P1 copper bar and P2 copper bar.
Further, it is equipped in the connecting hole of the mutual inductor connecting pin of the split-phase attachment device and is shorted contact,
Face the short-contact metal contact.
400 volts of Open Type Electric Current Mutual Inductor components of the invention, by the P1 phase current loop inside low-voltage current mutual inductor
Wiring, the wiring of P2 phase current loop and voltage circuit wiring are connect with the copper bar of split-phase ejector respectively, split-phase ejector
With split-phase attachment device, split-phase attachment device connects bus hub.Make any one total prominent connector of bus hub in this way
Phase be all clear and definite, avoid as wiring it is complicated caused by P1 phase current lead-out wire between difference current transformer,
The problem of P2 phase current lead-out wire wiring error problem and phase voltage and phase current bridge.Operator only needs bus directly
Grafting is distinguished in socket and measurement loop, split-phase attachment device and bus hub, split-phase ejector and split-phase attachment device
It realizes electrical connection, avoids complicated wiring work, it is quick and easy for installation, improve O&M efficiency.Short-contact metal contact exists
When low-voltage current mutual inductor is in extraction state, so that the alternate mutual short circuit of secondary loop of mutual inductor, to realize pair
In the livewire work of low-voltage current mutual inductor.
Detailed description of the invention
Fig. 1 is the transformer housing 1 and split-phase ejector of 400 volts of Open Type Electric Current Mutual Inductor components of one kind of the invention
Assembling schematic diagram；
Fig. 2 is the split-phase ejector and transformer housing 1 of 400 volts of Open Type Electric Current Mutual Inductor components of one kind of the invention
Assembling detail schematic diagram；
Fig. 3 is the split-phase plate 22 of the split-phase ejector of 400 volts of Open Type Electric Current Mutual Inductor components of one kind of the invention
Top view；
Fig. 4 is the mutual inductor connection of the split-phase attachment device 3 of 400 volts of Open Type Electric Current Mutual Inductor components of one kind of the invention
The top view at end；
Fig. 5 is the structural schematic diagram of the bus hub 4 of 400 volts of Open Type Electric Current Mutual Inductor components of one kind of the invention.
Specific embodiment
In order to preferably understand technical solution of the present invention, below by specifically embodiment and in conjunction with attached drawing
It is described in detail:
Please refer to Fig. 1 to Fig. 5, the present invention 400 volts of Open Type Electric Current Mutual Inductor components of one kind, including three Current Mutual Inductances
Device, split-phase attachment device 3 and bus hub 4.
Each current transformer includes transformer housing 1 and split-phase ejector；Split-phase ejector includes that mutual inductor connects
Fitting 21, split-phase plate 22 and copper bar 23；Mutual inductor connector 21 be plugged on the bottom of transformer housing 1 and with transformer housing 1
It is threadedly coupled, split-phase plate 22 is connected to the bottom of mutual inductor connector 21,3 split-phase holes is offered on split-phase plate, respectively
P1 split-phase hole 231, P2 split-phase hole 232 and voltage split-phase hole 233.Three copper bars 23 are plugged on from bottom to top in split-phase hole, copper bar
Split-phase hole, the wiring of P1 phase current loop, the wiring of P2 phase current loop and voltage circuit in current transformer are stretched out in 23 lower end
Wiring connects to form P1 copper bar, P2 copper bar and voltage copper bar with the copper bar in corresponding split-phase hole respectively.Packet on the outside of split-phase ejector
It is wrapped with insulating bushing.The short-contact metal contact 24 of conducting P1 copper bar and P2 copper bar is equipped between P1 copper bar and P2 copper bar.Work as electric current
Mutual inductor is in measurement loop when connection status, and short-contact metal contact 24 to be shorted between P1 copper bar and P2 copper bar, is protected
It demonstrate,proves current transformer in the energized state, is formed into a loop between the wiring of P1 phase current loop and P2 phase current loop wiring, guaranteed
The normal work of current transformer.
Split-phase attachment device 3 includes mutual inductor connecting pin and bus plug connecting pin.There are three mutual inductor connecting pin opens up
Connecting hole 32 respectively corresponds the P1 copper bar, P2 copper bar and voltage copper bar of split-phase ejector.It is equipped in connecting hole 32 and is shorted contact
31, face short-contact metal contact 24.When split-phase attachment device 3 is connected with split-phase ejector, short circuit contact 31 jacks up short
Metal contact piece 24 is connect, so that P1 phase current and P2 the phase current normally in split-phase attachment device 3, guarantee that current transformer is opened
Road system worked well.Bus plug connecting pin sets that there are three prominent connectors to correspond to the P1 copper bar of split-phase ejector, P2 copper bar
With voltage copper bar.Split-phase attachment device 3 connects current transformer and bus hub 4.
The side of bus hub 4 is set there are three current tap socket 41, and the prominent connector of three of each split-phase attachment device 3 is plugged on
In one current tap socket；The other side of bus hub 4 is equipped with 9 total prominent connectors 42, and each total prominent connector 42, which respectively corresponds, appoints
It anticipates the wiring of P1 phase current loop, the wiring of P2 phase current loop or voltage circuit wiring of a current transformer；Bus hub 4 is logical
Total prominent connector 42 is crossed to connect with electric-power metering circuit.
When being assembled, to guarantee that the P1 of current transformer connects line loop and the P2 line loop that connects is charged in mutual inductor
Circuit is in the state of short circuit always under state, first by bus hub 4 and measurement loop grafting, then 3 split-phases is connected and are filled
3 are set in grafting is distinguished in bus hub 4, finally successively by the split-phase ejector of 3 current transformers and split-phase attachment device 3
The electrical connection of current transformer can be realized in grafting.
The technology changes the mode of many fastened by screw connecting terminals that need to use, but is realized by plug and draw low tension
Current transformer secondary current, compared with the prior art, wiring is simple, quick for installation, easy to maintain and avoid asking across phase connection
Topic, while can effectively avoid Current Transformer Secondary open circuit phenomenon, make it possible to the band when carrying out the maintenance of measurement loop device
Electric operation.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as the change in spirit of the invention, to embodiment described above
Change, modification will all be fallen within the scope of claims of the present invention.
Claims (4)
1. a kind of 400 volts of Open Type Electric Current Mutual Inductor components, including three current transformers, split-phase attachment device and bus are inserted
Seat, it is characterised in that:
Each current transformer includes transformer housing and split-phase ejector；The split-phase ejector includes mutual inductor
Connector, split-phase plate and copper bar；The mutual inductor connector be plugged on the bottom of the transformer housing and with the mutual inductor
Shell is threadedly coupled, and the split-phase plate is connected to the bottom of the mutual inductor connector, offers 3 points on the split-phase plate
Xiang Kong, three copper bars are plugged on from bottom to top in the split-phase hole, and the split-phase hole is stretched out in the lower end of the copper bar, described
The wiring of P1 phase current loop, the wiring of P2 phase current loop and voltage circuit wiring in current transformer connect with three copper bars respectively
It connects to form P1 copper bar, P2 copper bar and voltage copper bar；
The split-phase attachment device includes mutual inductor connecting pin and bus plug connecting pin；The mutual inductor connecting pin offers three
A connecting hole corresponds to the P1 copper bar, P2 copper bar and voltage copper bar of the split-phase ejector, and the bus plug connecting pin is equipped with
Three prominent connectors correspond to the P1 copper bar, P2 copper bar and voltage copper bar of the split-phase ejector；The split-phase attachment device connects
Connect the current transformer and the bus hub；
The side of the bus hub is set there are three current tap socket, and the prominent connector of three of each split-phase attachment device is plugged on
In one current tap socket；The other side of the bus hub is equipped with 9 total prominent connectors, each total prominent connector and one
The wiring of P1 phase current loop, the wiring of P2 phase current loop or the voltage circuit wiring of a current transformer correspond；Institute
Bus hub is stated to connect with electric-power metering circuit.
2. a kind of 400 volts of Open Type Electric Current Mutual Inductor components according to claim 1, which is characterized in that the split-phase is drawn
Insulating bushing is enclosed on the outside of device out.
3. a kind of 400 volts of Open Type Electric Current Mutual Inductor components according to claim 1, which is characterized in that P1 copper bar and P2
The short-contact metal contact of conducting P1 copper bar and P2 copper bar is equipped between copper bar.
4. a kind of 400 volts of Open Type Electric Current Mutual Inductor components according to claim 3, which is characterized in that the split-phase connects
It is equipped in the connecting hole of the mutual inductor connecting pin of connection device and is shorted contact, face the short-contact metal contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810280962.5A CN108899176B (en) | 2018-04-02 | 2018-04-02 | A kind of 400 volts of Open Type Electric Current Mutual Inductor components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810280962.5A CN108899176B (en) | 2018-04-02 | 2018-04-02 | A kind of 400 volts of Open Type Electric Current Mutual Inductor components |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108899176A CN108899176A (en) | 2018-11-27 |
| CN108899176B true CN108899176B (en) | 2019-10-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810280962.5A Expired - Fee Related CN108899176B (en) | 2018-04-02 | 2018-04-02 | A kind of 400 volts of Open Type Electric Current Mutual Inductor components |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108899176B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003347139A (en) * | 2002-05-29 | 2003-12-05 | Mitsubishi Electric Corp | Polyphase current transformer |
| CN201307691Y (en) * | 2008-09-26 | 2009-09-09 | 北京市电力公司 | Switching device and current transformer testing line |
| CN204789651U (en) * | 2015-07-16 | 2015-11-18 | 济宁拓新电气有限公司 | Current sensor mounting structure |
| CN106129755A (en) * | 2016-06-02 | 2016-11-16 | 国家电网公司 | A kind of electric power adapter |
| CN106653339A (en) * | 2016-11-29 | 2017-05-10 | 杭州海兴电力科技股份有限公司 | Current transformer |
| CN208189362U (en) * | 2018-04-02 | 2018-12-04 | 国网上海市电力公司 | A kind of 400 volts of Open Type Electric Current Mutual Inductor components |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8400161B2 (en) * | 2010-05-27 | 2013-03-19 | Hemicycle Controls Inc. | Short-defeating insert in an FT-switch |
-
2018
- 2018-04-02 CN CN201810280962.5A patent/CN108899176B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003347139A (en) * | 2002-05-29 | 2003-12-05 | Mitsubishi Electric Corp | Polyphase current transformer |
| CN201307691Y (en) * | 2008-09-26 | 2009-09-09 | 北京市电力公司 | Switching device and current transformer testing line |
| CN204789651U (en) * | 2015-07-16 | 2015-11-18 | 济宁拓新电气有限公司 | Current sensor mounting structure |
| CN106129755A (en) * | 2016-06-02 | 2016-11-16 | 国家电网公司 | A kind of electric power adapter |
| CN106653339A (en) * | 2016-11-29 | 2017-05-10 | 杭州海兴电力科技股份有限公司 | Current transformer |
| CN208189362U (en) * | 2018-04-02 | 2018-12-04 | 国网上海市电力公司 | A kind of 400 volts of Open Type Electric Current Mutual Inductor components |
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| Publication number | Publication date |
|---|---|
| CN108899176A (en) | 2018-11-27 |
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Granted publication date: 20191011 Termination date: 20210402 |