CN108574160A - A kind of electric installation of control and protective switching device - Google Patents
A kind of electric installation of control and protective switching device Download PDFInfo
- Publication number
- CN108574160A CN108574160A CN201810558148.5A CN201810558148A CN108574160A CN 108574160 A CN108574160 A CN 108574160A CN 201810558148 A CN201810558148 A CN 201810558148A CN 108574160 A CN108574160 A CN 108574160A
- Authority
- CN
- China
- Prior art keywords
- baffle
- phases
- input
- export
- electric installation
- 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.)
- Pending
Links
- 238000009434 installation Methods 0.000 title claims abstract description 36
- 230000001681 protective effect Effects 0.000 title claims abstract description 16
- 238000000819 phase cycle Methods 0.000 claims abstract description 39
- 239000012212 insulator Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/6608—Structural association with built-in electrical component with built-in single component
- H01R13/6633—Structural association with built-in electrical component with built-in single component with inductive component, e.g. transformer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
- H01R31/065—Intermediate parts for linking two coupling parts, e.g. adapter with built-in electric apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention provides a kind of electric installations of control and protective switching device, including：Current input terminal, current output terminal, mutual inductor and connector, four phases input baffle and four phases output baffle is located at mutual inductor opposite sides and its free end is located in Different Plane, union space is not arranged in a crossed manner in the same plane for the fixing end of two adjacent input baffles in outside, and four phases export the fixing end of baffle in the same plane.The main purpose of the present invention is to provide a kind of electric installations of control and protective switching device, to solve the problems, such as electric installation phase sequence dislocation in the prior art.
Description
Technical field
The present invention relates to control and protective switching device technical fields, and in particular to a kind of control and protective switching device
Electric installation.
Background technology
In the prior art, it is used for the baffle phase sequence N of the current input terminal of the electric installation of control and protective switching device
Phase, A phase, B phase, C phase and baffle phase sequence N phases, the A phase, B phase, C phase of current output terminal are same mutual inductor horizontal centre plane
Side, at this moment the baffle phase sequence N phases, A phase, B phase, C phase and the baffle phase sequence N phases of current output terminal, A of current input terminal
Phase, B phases, C phases correspond, when the water conservancy diversion of the baffle phase sequence N phases of current input terminal, A phase, B phase, C phase and current output terminal
Body phase sequence N phases, A phase, B phase, C phase be not at the same side of mutual inductor horizontal centre plane, such as current input terminal is in mutual inductor
The top of horizontal centre plane, current output terminal is in the lower section of mutual inductor horizontal centre plane, and which results in current input terminals
Phase sequence N phases and the location swap and phase sequence B phases and C phases of A phases location swap so that the baffle phase sequence N of current input terminal
Phase, A phase, B phase, C phase and baffle phase sequence N phases, the A phase, B phase, C phase of current output terminal cannot correspond, this set side
Formula has upset the N phases of current input terminal, the proper sequence of A phase, B phase, C phase, becomes the wrong phase of A phases, N phases, C phases, B phases
Sequence, in turn resulting in the phase sequence output and input can not correspond to.Therefore, now need a kind of phase sequence that can control and protect correspondingly
Protect the electric leakage electric installation of device for switching.
Invention content
The main purpose of the present invention is to provide a kind of electric installations of control and protective switching device, to solve existing skill
The problem of electric installation phase sequence dislocation of control and protective switching device in art.
To achieve the above object, the present invention provides a kind of electric installations of control and protective switching device, including：Electric current
Input terminal, current output terminal, mutual inductor and connector, current input terminal include that four phases input baffle；Current output terminal and electricity
Stream input terminal is oppositely arranged and includes four phases output baffle；There is mutual inductor circular through hole, mutual inductor setting to be inputted in electric current
Between end and current output terminal；Connector is located in circular through hole, and current input terminal and current output terminal are fixed by fastener
On connector；Wherein, four phases input baffle and four phases output baffle are located at mutual inductor opposite sides and its free end position
In in Different Plane, union space is not arranged in a crossed manner in the same plane for the fixing end of two adjacent input baffles in outside,
Four phases export the fixing end of baffle in the same plane.
Further, plane where the free end of four phases input baffle is higher than the horizontal centre plane of mutual inductor；Four phases
Plane is less than the horizontal centre plane of mutual inductor where exporting the free end of baffle.
Further, connector includes：Four connecting poles, four connecting poles are combined into a cylindrical structure, each connecting pole
A pair of of corresponding input baffle of phase sequence of connection and output baffle.
Further, electric installation further includes insulating part, and insulating part is set in the both sides of mutual inductor.
Further, insulating part includes：The first insulator and second insulator being oppositely arranged, first insulator and second
The opposite side of insulator is respectively provided with notch, and two notches surround a slot hole, and mutual inductor is pierced by from slot hole.
Further, the free end of input baffle and output baffle is bent to the side far from mutual inductor.
Further, the free end of input baffle and output baffle all has connecting hole.
Further, four phases input baffle is that N phases input baffle, A phases input baffle, B phases input baffle and C
Mutually input baffle；Four phases export baffle：With N phases input the corresponding N phases of baffle phase sequence export baffle, with A phases
The corresponding A phases of input baffle phase sequence export baffle, baffle phase sequence is inputted with B phases, and corresponding B phases export baffle and and C
Mutually the corresponding C phases of input baffle phase sequence export baffle；N phases input baffle, A phases input baffle, B phases input baffle
The free end that baffle is inputted with C phases is arranged side by side, and N phases export baffle, A phases export baffle, B phases export baffle and C
Mutually the free end of output baffle is arranged side by side and is straight panel structure, and N phases input the fixing end that baffle inputs baffle with C phases
It is oppositely arranged and is L-type.
Further, A phases, which input baffle and input the fixing end of baffle with B phases, is oppositely arranged.
Further, N phases export baffle, A phases export baffle, B phases export baffle and export consolidating for baffle with C phases
Fixed end is oppositely arranged and is L-type, and N phases export baffle, N phases export baffle, N phases export baffle and export water conservancy diversion with N phases
The free end of body is straight panel structure.
The invention has the advantages that：The baffle of current input terminal and current output terminal is not flat in mutual inductor horizontal centre
When the same side in face, the phase sequence of each phase baffle of current input terminal and each phase baffle of current output terminal cannot an a pair
It answers, and then leads to phase sequence location swap, two that the outside of the electric installation of this control and protective switching device is adjacent input
The fixing end of baffle in the same plane and is not space crossed setting, just forms a difference in height in this way, generates space
Staggeredly, and then the phase sequence of each phase baffle is avoided mutually to change wrong phase sequence position into.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.In the accompanying drawings：
Fig. 1 shows the overall structure diagram of the electric installation of the control and protective switching device of the present invention；
Fig. 2 shows the first arrangement mode structural representations for removing input terminal after part of the electric installation of Fig. 1
Figure；
Fig. 3 shows second of arrangement mode structural representation for removing input terminal after part of the electric installation of Fig. 1
Figure；
Fig. 4 shows the third arrangement mode structural representation for removing input terminal after part of the electric installation of Fig. 1
Figure.
Wherein, the reference numeral in above-mentioned attached drawing is：
10, mutual inductor；21, connecting pole；31, first insulator；32, second insulator；41, N phases input baffle；42、A
Mutually input baffle；43, B phases input baffle；44, C phases input baffle；51, N phases export baffle；52, A phases, which export, leads
Fluid；53, B phases export baffle；54, C phases export baffle.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment 1
As shown in Figure 1, the present invention provides a kind of electric installations of control and protective switching device, including：Electric current inputs
End, current output terminal, mutual inductor 10 and connector, current input terminal include that four phases input baffle；Current output terminal and electric current
Input terminal is oppositely arranged and includes four phases output baffle；Mutual inductor 10 has circular through hole, the setting of mutual inductor 10 defeated in electric current
Enter between end and current output terminal；Connector is located in circular through hole, and current input terminal and current output terminal are solid by fastener
It is scheduled on connector；Wherein, four phases input baffle and four phases output baffle are located at 10 opposite sides of mutual inductor and its freedom
End is located in Different Plane, and union space intersection is not set the fixing end of two adjacent input baffles in outside in the same plane
It sets, four phases export the fixing end of baffle in the same plane.
The baffle of current input terminal and current output terminal is not at the same side of 10 horizontal centre plane of mutual inductor, electric current
Each phase baffle of input terminal and the phase sequence of each phase baffle of current output terminal cannot correspond, and then lead to phase sequence position
It exchanges, the fixing end of two adjacent input baffles of outside of the electric installation of this control and protective switching device is not same
In one plane and it is space crossed setting, just forms a difference in height in this way, generates spatial intersecting, and then avoid each phase water conservancy diversion
The phase sequence of body mutually changes wrong phase sequence position into.
Specifically, plane where the free end of four phases input baffle is higher than the horizontal centre plane of mutual inductor 10；Four phases
Plane is less than the horizontal centre plane of mutual inductor 10 where exporting the free end of baffle.This setup can meet
The structure type of product, makes that its is easy to use and appearance is relatively beautiful.
Specifically, connector includes：Four connecting poles 21, four connecting poles 21 are combined into a cylindrical structure, each to connect
Column 21 connects the corresponding input baffle of a pair of of phase sequence and output baffle.Each connecting pole 21 is equipped with connecting hole, fastening
Part is threaded through on baffle and connecting pole 21, each phase baffle can be fixed on connecting pole 21 by fastener in this way,
Fastener can be screw, can also be other parts with fastening function.
Specifically, electric installation further includes insulating part, and insulating part is set in the both sides of mutual inductor 10.Insulating part may be implemented
Insulation function, and the phase sequence of each phase baffle is made not will produce interference.
Specifically, insulating part includes：The first insulator 31 and second insulator 32 being oppositely arranged, 31 He of first insulator
The opposite side of second insulator 32 is respectively provided with notch, and two notches surround a slot hole, and mutual inductor 10 is pierced by from slot hole.The
Together with one insulator 31 is fastened by bolts with second insulator 32, the two again clamps mutual inductor 10, so that first
Insulator 31, mutual inductor 10 and 32 three of second insulator are fixed together, and insulation function may be implemented in insulating part, and makes each phase
The phase sequence of baffle not will produce interference.
Specifically, the free end of input baffle and output baffle is bent to the side far from mutual inductor 10.In this way
Each phase baffle can be facilitated to be fixedly connected with other parts.
Specifically, the free end of input baffle and output baffle all has connecting hole.Connecting hole shows not in the drawings
Go out, connecting hole is convenient for the electric installation of control and protective switching device and other electric elements being fixedly connected.
As depicted in figs. 1 and 2, specifically, four phases input baffle is that N phases input baffle 41, A phases input baffle
42, B phases input baffle 43 and input baffle 44 with C phases；Four phases export baffle：41 phase sequence of baffle is inputted with N phases
Corresponding N phases export baffle 51,42 phase sequence of baffle is inputted with A phases, and corresponding A phases export baffle 52, input and lead with B phases
The corresponding B phases of 43 phase sequence of fluid, which export baffle 53 and input the corresponding C phases of 44 phase sequence of baffle with C phases, exports baffle 54；N
Mutually input baffle 41, A phases inputs baffle 42, B phases input baffle 43 and input the free end of baffle 44 with C phases and set side by side
It sets, N phases export baffle 51, A phases export baffle 52, B phases export baffle 53 and export the free end of baffle 54 simultaneously with C phases
Row's setting and be straight panel structure, N phases, which input baffle 41 and input the fixing end of baffle 44 with C phases, to be oppositely arranged and is L-type.
Certainly, the shape of each phase baffle can also be other structures easy to use.
Specifically, A phases, which input baffle 42 and input the fixing end of baffle 43 with B phases, is oppositely arranged.It is of course also possible to be
Other structures easy to use.
Specifically, N phases export baffle 51, A phases export baffle 52, B phases export baffle 53 and export baffle with C phases
54 fixing end is oppositely arranged and is L-type, and N phases export baffle 51, N phases export baffle 51, N phases export 51 and of baffle
The free end that N phases export baffle 51 is straight panel structure.It is of course also possible to be other structures easy to use.
Embodiment 2
As shown in figure 3, providing the arrangement mode of second of electric installation input terminal, the present embodiment is on 1 basis of embodiment
On deformation, change N phases input the position that baffle 41 inputs baffle 42 with A phases, to formed second of electric installation it is defeated
Enter the arrangement mode at end；
Embodiment 3
As shown in figure 4, providing the arrangement mode of the third electric installation input terminal, the present embodiment is on 2 basis of embodiment
On deformation, change B phases input the position that baffle 43 inputs baffle 44 with C phases, it is defeated to form the third electric installation
Enter the arrangement mode at end.
As interchangeable embodiment, above example can be by the structure of current input terminal and current output terminal
Structure is interchangeable.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of electric installation of control and protective switching device, which is characterized in that including：
Current input terminal, including four phases input baffle；
Current output terminal is oppositely arranged with the current input terminal and includes four phases output baffle；
There is mutual inductor (10) circular through hole, mutual inductor (10) setting to be exported in the current input terminal and the electric current
Between end；
Connector is located in the circular through hole, and the current input terminal and the current output terminal are fixed on by fastener
On the connector；
Wherein, inputted described in four phases output baffle described in baffle and four phases be located at the mutual inductor (10) opposite sides and its
Free end is located in Different Plane, and the fixing end of the input baffle of adjacent two in outside is not in the same plane and empty
Between it is arranged in a crossed manner, described in four phases export baffle fixing end in the same plane.
2. electric installation according to claim 1, which is characterized in that the free end place for inputting baffle described in four phases is flat
Face is higher than the horizontal centre plane of the mutual inductor (10)；Plane is less than described where exporting the free end of baffle described in four phases
The horizontal centre plane of mutual inductor (10).
3. electric installation according to claim 1, which is characterized in that the connector includes：Four connecting poles (21), four
A connecting pole (21) is combined into a cylindrical structure, and each a pair of of phase sequence of connecting pole (21) connection is corresponding described defeated
Enter baffle and the output baffle.
4. electric installation according to claim 1, which is characterized in that the electric installation further includes insulating part, described exhausted
Edge part is set in the both sides of the mutual inductor (10).
5. electric installation according to claim 4, which is characterized in that the insulating part includes：First be oppositely arranged is absolutely
Edge body (31) and second insulator (32), the first insulator (31) and the second insulator (32) it is opposite side difference
With notch, two notches surround a slot hole, and the mutual inductor (10) is pierced by from the slot hole.
6. electric installation according to claim 3, which is characterized in that the input baffle and the output baffle
Free end is bent to the side far from the mutual inductor (10).
7. electric installation according to claim 3, which is characterized in that the input baffle and the output baffle
Free end all has connecting hole.
8. electric installation according to claim 1, which is characterized in that it is that N phases input water conservancy diversion to input baffle described in four phases
Body (41), A phases input baffle (42), B phases input baffle (43) and input baffle (44) with C phases；Output described in four phases is led
Fluid includes：The corresponding N phases of baffle (41) phase sequence are inputted with the N phases to export baffle (51), input water conservancy diversion with the A phases
The corresponding A phases of body (42) phase sequence export baffle (52), baffle (43) phase sequence is inputted with the B phases corresponding B phases are exported and led
It fluid (53) and inputs the corresponding C phases of baffle (44) phase sequence with the C phases and exports baffle (54)；The N phases input water conservancy diversion
Body (41), the A phases input baffle (42), the B phases input baffle (43) and the C phases input baffle (44) from
It is arranged side by side by holding, the N phases export baffle (51), the A phases export baffle (52), the B phases export baffle
(53) free end that baffle (54) is exported with the C phases is arranged side by side and is straight panel structure, and the N phases input baffle (41)
The fixing end that baffle (44) is inputted with the C phases is oppositely arranged and is L-type.
9. electric installation according to claim 8, which is characterized in that the A phases input baffle (42) and the B phases are defeated
The fixing end for entering baffle (43) is oppositely arranged.
10. electric installation according to claim 8, which is characterized in that it is defeated that the N phases export baffle (51), the A phases
Go out baffle (52), the B phases export baffle (53) and export the fixing end of baffle (54) with C phases and are oppositely arranged and are L
Type, the N phases export baffle (51), the N phases export baffle (52), the N phases export baffle (53) and the N phases
The free end for exporting baffle (54) is straight panel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810558148.5A CN108574160A (en) | 2018-06-01 | 2018-06-01 | A kind of electric installation of control and protective switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810558148.5A CN108574160A (en) | 2018-06-01 | 2018-06-01 | A kind of electric installation of control and protective switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108574160A true CN108574160A (en) | 2018-09-25 |
Family
ID=63573111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810558148.5A Pending CN108574160A (en) | 2018-06-01 | 2018-06-01 | A kind of electric installation of control and protective switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108574160A (en) |
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|---|---|---|---|---|
| JPH0878259A (en) * | 1994-09-08 | 1996-03-22 | Fuji Electric Co Ltd | Current transformer-zero-phase current transformer unit |
| EP0926695A1 (en) * | 1997-12-18 | 1999-06-30 | Schneider Electric Sa | Electrical connection device of a differential unit to a circuit breaker or similar and a differential unit equiped with such a device |
| JP2004241530A (en) * | 2003-02-05 | 2004-08-26 | Fuji Electric Holdings Co Ltd | Zero phase-sequence current transformer |
| EP1710824A1 (en) * | 2005-04-07 | 2006-10-11 | Condor-Werke Gebr. Frede GmbH & Co. KG | Protective switch |
| US20080284410A1 (en) * | 2007-05-16 | 2008-11-20 | Square D Company | Clamp-on current and voltage module for a power monitoring system |
| CN101079354B (en) * | 2006-05-23 | 2010-06-09 | 富士电机机器制御株式会社 | Residual current circuit breaker |
| CN102290292A (en) * | 2011-06-28 | 2011-12-21 | 常熟开关制造有限公司(原常熟开关厂） | Aftercurrent protection circuit breaker |
| CN202333160U (en) * | 2011-12-08 | 2012-07-11 | Tcl空调器(中山)有限公司 | Error prevention terminal table |
| WO2015121908A1 (en) * | 2014-02-17 | 2015-08-20 | 富士電機機器制御株式会社 | Leakage current detection unit and leakage current breaker |
| CN205355542U (en) * | 2016-02-01 | 2016-06-29 | 深圳日海通讯技术股份有限公司 | Three -phase copper bar subassembly and rack |
| CN208157692U (en) * | 2018-06-01 | 2018-11-27 | 浙江中凯科技股份有限公司 | A kind of electric installation of control and protective switching device |
-
2018
- 2018-06-01 CN CN201810558148.5A patent/CN108574160A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0878259A (en) * | 1994-09-08 | 1996-03-22 | Fuji Electric Co Ltd | Current transformer-zero-phase current transformer unit |
| EP0926695A1 (en) * | 1997-12-18 | 1999-06-30 | Schneider Electric Sa | Electrical connection device of a differential unit to a circuit breaker or similar and a differential unit equiped with such a device |
| JP2004241530A (en) * | 2003-02-05 | 2004-08-26 | Fuji Electric Holdings Co Ltd | Zero phase-sequence current transformer |
| EP1710824A1 (en) * | 2005-04-07 | 2006-10-11 | Condor-Werke Gebr. Frede GmbH & Co. KG | Protective switch |
| CN101079354B (en) * | 2006-05-23 | 2010-06-09 | 富士电机机器制御株式会社 | Residual current circuit breaker |
| US20080284410A1 (en) * | 2007-05-16 | 2008-11-20 | Square D Company | Clamp-on current and voltage module for a power monitoring system |
| CN102290292A (en) * | 2011-06-28 | 2011-12-21 | 常熟开关制造有限公司(原常熟开关厂） | Aftercurrent protection circuit breaker |
| CN202333160U (en) * | 2011-12-08 | 2012-07-11 | Tcl空调器(中山)有限公司 | Error prevention terminal table |
| WO2015121908A1 (en) * | 2014-02-17 | 2015-08-20 | 富士電機機器制御株式会社 | Leakage current detection unit and leakage current breaker |
| CN205355542U (en) * | 2016-02-01 | 2016-06-29 | 深圳日海通讯技术股份有限公司 | Three -phase copper bar subassembly and rack |
| CN208157692U (en) * | 2018-06-01 | 2018-11-27 | 浙江中凯科技股份有限公司 | A kind of electric installation of control and protective switching device |
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