CN220473599U - Multipath electric energy metering junction box - Google Patents
Multipath electric energy metering junction box Download PDFInfo
- Publication number
- CN220473599U CN220473599U CN202321160348.8U CN202321160348U CN220473599U CN 220473599 U CN220473599 U CN 220473599U CN 202321160348 U CN202321160348 U CN 202321160348U CN 220473599 U CN220473599 U CN 220473599U
- Authority
- CN
- China
- Prior art keywords
- current
- voltage
- terminal
- electric energy
- junction box
- 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.)
- Active
Links
- 239000013642 negative control Substances 0.000 claims abstract description 52
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 25
- 229910052802 copper Inorganic materials 0.000 claims description 25
- 239000010949 copper Substances 0.000 claims description 25
- 230000002411 adverse Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model relates to the technical field of electric energy metering appliances, and discloses a multipath electric energy metering junction box. The junction box comprises a plurality of voltage control parts and a current control part, wherein the voltage control part is provided with two voltage connecting sheets for respectively controlling the voltage loss of an electric energy meter and a negative control terminal, and the current control part comprises a current input circuit, a first current connecting terminal, a second current connecting terminal, a current string connecting terminal, a first current connecting sheet and a second current connecting sheet; the current input circuit, the first current wiring terminal, the current coil of the electric energy meter, the current string connecting terminal, the second current wiring terminal and the current coil of the negative control terminal are sequentially connected to form a current loop; the first current connecting piece is arranged between the first current connecting terminal and the current string connecting line terminal, and the second current connecting piece is arranged between the second current connecting terminal and the current string connecting line terminal. The utility model can avoid the adverse effect caused by the current connecting sheet for series connection, and is simple, practical and easy to operate.
Description
Technical Field
The utility model relates to the technical field of electric energy metering appliances, in particular to a multipath electric energy metering junction box.
Background
When the negative control terminal is replaced in a live mode, the secondary circuit voltage is required to be opened through the metering junction box, and the secondary circuit current is required to be short-circuited, so that the corresponding terminal meter is replaced under the condition of no current and no voltage. For the traditional metering junction box, the electric energy meter cannot normally meter under the condition of operation.
For solving the problem that traditional terminal box can not satisfy the requirement of uninterrupted power measurement when changing the terminal table, generally including voltage control end and current control end in the measuring terminal box of present design, voltage control end includes two voltage connection pieces, and current control end includes four vertical copper bars, sets up first current connection piece, second current connection piece and third current connection piece between the adjacent vertical copper bars, and the second current connection piece is located normally closed state, and first current connection piece, third current connection piece are connected with electrically conductive screw can be dismantled. When the terminal meter needs to be replaced, the voltage connecting sheet of the control negative control terminal is opened, and the current connecting sheet of the control negative control terminal is in short circuit, so that uninterrupted electric quantity metering can be realized when the terminal meter is replaced.
However, with the metering junction boxes of the current design described above, there are the following drawbacks:
(1) Because four vertical copper bars are arranged, the lower ends of the current terminals are the four wiring terminals of A phase and B phase, and wiring is easy to be misplaced during wiring installation; (2) Each current connecting sheet is in a series connection state during normal operation, and phenomena such as poor contact or burning loss among the current connecting sheets are easy to cause due to factors such as long-time operation, environmental temperature change, site vibration, current magnitude and the like, so that the fault rate is high; (3) The current connecting piece is provided with three pieces, and mistakes are easy to occur when the connecting piece is pulled.
Accordingly, there is a need for an improved structure of the current metering junction box to solve the above-mentioned problems.
Disclosure of Invention
The utility model provides a multipath electric energy metering junction box, which solves the technical problems of high operation difficulty and high failure rate of the existing metering junction box.
The utility model provides a multipath electric energy metering junction box which is connected between an electric energy meter, a negative control terminal and a household line, wherein a current transformer and a voltage transformer are arranged on the household line, the multipath electric energy metering junction box comprises a plurality of voltage control parts and a current control part, the voltage control part is provided with two voltage connecting pieces for respectively controlling the voltage loss of the electric energy meter and the negative control terminal, and the current control part comprises a current input circuit, a first current connecting terminal, a second current connecting terminal, a current string connecting line terminal, a first current connecting piece and a second current connecting piece;
one end of the current input circuit is used for being connected with the current transformer, and the other end of the current input circuit, the first current wiring terminal, the current coil of the electric energy meter, the current string connecting wire terminal, the second current wiring terminal and the current coil of the negative control terminal are sequentially connected to form a current loop; the first current connecting piece is arranged between the first current wiring terminal and the current string connecting wire terminal, and the second current connecting piece is arranged between the second current wiring terminal and the current string connecting wire terminal.
According to one implementation of the present utility model, the current string connecting terminal includes a first copper block and a first conductive screw connected to the first copper block;
one end of the first current connecting sheet and one end of the second current connecting sheet are respectively provided with a first connecting hole matched with the first conductive screw.
According to one implementation manner of the utility model, the first current connecting terminal comprises a second conductive screw, and the other end of the first current connecting sheet is provided with a second connecting hole matched with the second conductive screw;
the second current wiring terminal comprises a third conductive screw, and a third connecting hole matched with the third conductive screw is formed in the other end of the second current connecting piece.
According to one possible mode of the present utility model, the current input circuit is provided with a current input port connected to the current transformer;
the current control part is provided with a first port, a second port, a third port and a fourth port;
the first port and the second port are both connected with the electric energy meter, and the third port and the fourth port are both connected with the negative control terminal.
According to one implementation manner of the present utility model, the voltage control part includes a voltage input circuit having one end for connecting to the voltage transformer;
the two voltage connection pieces are divided into a first voltage connection piece and a second voltage connection piece, the other end of the voltage input circuit can be connected with a voltage coil of the electric energy meter through the first voltage connection piece, and the other end of the voltage input circuit can be connected with a voltage coil of the negative control terminal through the second voltage connection piece.
According to one implementation of the present utility model, the voltage input circuit includes a second copper block and a fourth conductive screw connected to the second copper block;
and one ends of the first voltage connecting sheet and the second voltage connecting sheet are respectively provided with a fourth connecting hole matched with the fourth conductive screw.
According to one implementation of the present utility model, the second copper block is a T-shaped copper block.
According to one implementation manner of the present utility model, the voltage control part further includes a fifth conductive screw and a sixth conductive screw;
the other end of the first voltage connecting piece is detachably connected with the fifth conductive screw, and the other end of the second voltage connecting piece is detachably connected with the sixth conductive screw.
According to one implementation mode of the utility model, the voltage control part is further provided with a first voltage output port, a second voltage output port and a voltage input port connected with the voltage transformer, and the first voltage output port and the second voltage output port are respectively and electrically connected with the electric energy meter and the negative control terminal.
According to one possible embodiment of the present utility model, the current control unit is provided between two adjacent voltage control units.
From the above technical scheme, the utility model has the following advantages:
the utility model relates to a multipath electric energy metering junction box which comprises a plurality of voltage control parts and a current control part, wherein the voltage control part is provided with two voltage connecting pieces for respectively controlling the voltage loss of an electric energy meter and a negative control terminal; one end of the current input circuit is used for being connected with the current transformer, and the other end of the current input circuit, the first current wiring terminal, the current coil of the electric energy meter, the current string wiring terminal, the second current wiring terminal and the current coil of the negative control terminal are sequentially connected to form a current loop; the first current connecting piece is arranged between the first current wiring terminal and the current string connecting wire terminal, and the second current connecting piece is arranged between the second current wiring terminal and the current string connecting wire terminal; compared with the existing metering junction box, the utility model improves the design of the current connecting pieces, reduces the current connecting pieces for series connection on each phase of current loop, and does not have the series connection state when the current connecting pieces normally run, thus avoiding the phenomena of poor contact or burning loss among the current connecting pieces; the setting number of the current wiring terminals is reduced, wiring errors can be reduced, and the current connection sheet and the voltage connection sheet are only required to be stirred when the electric energy meter or the negative control terminal is replaced, so that the operation is further simplified, and the electric energy meter has the advantages of simplicity, practicability and easiness in operation.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of a multi-channel electrical energy metering junction box according to an alternative embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a multi-path electric energy metering junction box according to an alternative embodiment of the present utility model.
Reference numerals:
1-an electric energy meter; 2-a negative control terminal; 3-a voltage transformer; 4-a current transformer; 5 a-a voltage input circuit; 5 b-a first voltage connection pad; 5 c-a second voltage connection pad; 6 a-a current input circuit; 6 b-a first current connection terminal; 6 c-a second current connection terminal; 6 d-current string connection terminals; 6 e-a first current connection pad; 6 f-a second current connection pad; 6 da-a first copper block; 6 db-a first conductive screw; 6 ba-a second conductive screw; 6 ca-a third conductive screw; 5 aa-a second copper block; 5 ab-fourth conductive screw; 5 d-a fifth conductive screw; 5 e-sixth conductive screw.
Detailed Description
The embodiment of the utility model provides a multipath electric energy metering junction box which is used for solving the technical problems of high operation difficulty and high failure rate of the existing metering junction box.
In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions in the embodiments of the present utility model are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a multipath electric energy metering junction box.
Referring to fig. 1, fig. 1 shows a flow chart of a multi-path electric energy metering junction box according to an embodiment of the utility model.
The multipath electric energy metering junction box provided by the embodiment of the utility model is connected among an electric energy meter 1, a negative control terminal 2 and a household line, wherein a current transformer 4 and a voltage transformer 3 are arranged on the household line, and the multipath electric energy metering junction box comprises a plurality of voltage control parts and current control parts.
The voltage control part is provided with two voltage connecting sheets for respectively controlling the voltage loss of the electric energy meter 1 and the negative control terminal 2, and comprises a voltage input circuit 5a, one end of which is used for being connected with the voltage transformer 3; the two voltage connection pieces are divided into a first voltage connection piece 5b and a second voltage connection piece 5c, and the other end of the voltage input circuit 5a can be connected with the voltage coil of the electric energy meter 1 through the first voltage connection piece 5b, and is connected with the voltage coil of the negative control terminal 2 through the second voltage connection piece 5 c.
Wherein the current control part comprises a current input circuit 6a, a first current connecting terminal 6b, a second current connecting terminal 6c, a current string connecting terminal 6d, a first current connecting sheet 6e and a second current connecting sheet 6f; one end of the current input circuit 6a is used for connecting the current transformer 4, and the other end of the current input circuit 6a, the first current wiring terminal 6b, the current coil of the electric energy meter 1, the current string connecting wire terminal 6d, the second current wiring terminal 6c and the current coil of the negative control terminal 2 are sequentially connected to form a current loop; the first current connection piece 6e is arranged between the first current connection terminal 6b and the current string connection terminal 6d, and the second current connection piece 6f is arranged between the second current connection terminal 6c and the current string connection terminal 6 d.
In the above embodiment of the present utility model, the voltage transformer 3 outputs to the multiple electric energy metering junction boxes, and the multiple electric energy metering junction boxes are divided into two independent loops, which are respectively connected with the voltage coils of the electric energy meter 1 and the negative control terminal 2. The current transformer 4 outputs to a multipath electric energy metering junction box, and a current loop is formed by connecting a current input circuit 6a, a first current wiring terminal 6b, a second current wiring terminal 6c and a current string wiring terminal 6d with a current coil of the electric energy meter 1 and a current coil of the negative control terminal 2. When the negative control terminal 2 needs to be replaced (taking three-phase three-wire as an example), the second current connecting sheet 6f is closed, so that the corresponding current loop is short-circuited, and at the moment, the current of the current transformer 4 directly flows to the input end of the current transformer 4 after passing through the electric energy meter 1, and no current exists at the position of the negative control terminal 2; and disconnecting the second voltage connecting sheet 5c of the multipath electric energy metering junction box, and losing voltage of the negative control terminal 2. The negative control terminal 2 can be safely replaced under the condition of no voltage and no current. At this time, the corresponding current loop of the electric energy meter 1 is not short-circuited, and the electric energy meter 1 is not in voltage loss, so that the electricity consumption of a user can be measured normally. Therefore, the utility model can effectively solve the problem that the normal metering of the electric energy meter 1 can not be realized due to the replacement of the metering junction box under the condition of no current and no voltage in the prior art.
When the electric energy meter 1 needs to be replaced, the first current connecting sheet 6e is closed, so that the corresponding current loop is short-circuited, at the moment, the current of the current transformer 4 skips the ammeter and directly flows to the negative control terminal 2 and then flows to the input end of the current transformer 4, and no current exists at the electric energy meter 1; the first voltage connecting piece 5b of the multipath electric energy metering junction box is disconnected, and the electric energy meter 1 is in voltage loss. The electric energy meter 1 can be safely replaced under the condition of no voltage and no current. At the moment, the corresponding current loop of the negative control terminal 2 is not short-circuited, the negative control terminal 2 is not in voltage loss, and the negative control terminal 2 can keep working continuously, so that the electric quantity zero loss during replacement of the electric energy meter 1 is realized.
Compared with the existing metering junction box, the embodiment of the utility model improves the design of the current connection pieces, reduces the current connection pieces for series connection on each phase of current loop, and does not have a series connection state in normal operation, so that the phenomena of poor contact or burning loss among the current connection pieces are avoided; the setting number of the current wiring terminals is reduced, wiring errors can be reduced, and the current connection sheet and the voltage connection sheet are only required to be stirred when the electric energy meter 1 or the negative control terminal 2 is replaced, so that the operation is further simplified, and the electric energy meter has the advantages of simplicity, practicability and easiness in operation.
In one possible way, as shown in fig. 2, the current string connecting terminal 6d includes a first copper block 6da and a first conductive screw 6db connected to the first copper block 6 da; one end of each of the first current connecting piece 6e and the second current connecting piece 6f is provided with a first connecting hole matched with the first conductive screw 6 db.
In the present embodiment, by providing the first copper block 6da and the first conductive screw 6db, it is achieved that the first current connecting piece 6e and the second current connecting piece 6f are connected through the current string connecting line terminal 6 d.
In one implementation manner, the first current connection terminal 6b includes a second conductive screw 6ba, and a second connection hole matched with the second conductive screw 6ba is provided at the other end of the first current connection piece 6 e; the second current connection terminal 6c comprises a third conductive screw 6ca, and a third connection hole matched with the third conductive screw 6ca is formed in the other end of the second current connection piece 6 f.
In this embodiment, the current loops of the electric energy meter 1 and the negative control terminal 2 can be separated and independent. When the electric energy meter 1 needs to be replaced, the current loop of the electric energy meter 1 can be short-circuited only by shorting the first current connecting sheet 6e to the left (connected with the second conductive screw 6 ba), and normal operation of the negative control terminal 2 cannot be affected. When the negative control terminal 2 needs to be replaced, the current loop of the electric energy meter 1 can be shorted only by shorting the second current connecting sheet 6f to the right (connecting with the third conductive screw 6 ca), and the normal operation of the electric energy meter 1 is not affected. The operation difficulty is reduced as a whole, and the current connection sheets for series connection are reduced in each phase of current loop, so that the fault condition caused by poor contact or burnout between the current connection sheets does not occur.
In one implementation, the current input circuit 6a is provided with a current input port connected to the current transformer 4, and the current control part is provided with a first port, a second port, a third port and a fourth port; the first port and the second port are both connected with the electric energy meter 1, and the third port and the fourth port are both connected with the negative control terminal 2. As a specific embodiment, the junction box shown in fig. 2 includes two sets of current control parts, and current input ports 2, 5, and 6 for connecting the a-phase and C-phase current transformers 4 are respectively provided below the junction box. Ports 2, 5-1 above the junction box are used for connecting the current coils of the electric energy meter 1, and ports 5-2, 6 above the junction box are used for connecting the current coils of the negative control terminal 2. From beginning to end, the current forms a series path which flows into the electric energy meter 1 and then into the negative control terminal 2. When the negative control terminal 2 needs to be replaced, the second current connecting sheet 6f is closed, the first current connecting sheet 6e is opened, at the moment, current does not flow into the negative control terminal 2, which is equivalent to shorting the negative control terminal 2, and when the negative control terminal 2 is replaced, the secondary side of the current transformer 4 is not opened because of disassembling a current wire; when the electric energy meter 1 needs to be replaced, the first current connecting sheet 6e is closed, the second current connecting sheet 6f is opened, at the moment, current does not flow into the electric energy meter 1, which is equivalent to shorting the electric energy meter 1, and when the electric energy meter 1 is replaced, the secondary side of the current transformer 4 is not opened because of disassembling a current wire.
In one possible way, as shown in fig. 2, the voltage input circuit 5a includes a second copper block 5aa and a fourth conductive screw 5ab connected to the second copper block 5 aa; one end of each of the first voltage connecting piece 5b and the second voltage connecting piece 5c is provided with a fourth connecting hole matched with the fourth conductive screw 5 ab. The voltage control part further comprises a fifth conductive screw 5d and a sixth conductive screw 5e; the other end of the first voltage connection piece 5b is detachably connected with the fifth conductive screw 5d, and the other end of the second voltage connection piece 5c is detachably connected with the sixth conductive screw 5 e.
By the arrangement of the embodiment, the working states of the electric energy meter 1 and the negative control terminal 2 can be controlled by separating the first voltage connecting sheet 5b from the second voltage connecting sheet 5 c.
As an embodiment, the second copper block 5aa is a T-shaped copper block.
In one implementation manner, the voltage control part is further provided with a first voltage output port, a second voltage output port and a voltage input port connected with the voltage transformer 3, and the first voltage output port and the second voltage output port are respectively and electrically connected with the electric energy meter 1 and the negative control terminal 2.
As a specific embodiment, the junction box shown in fig. 2 includes three groups of voltage control parts, voltage input ports 1, 6 and 7 respectively connected with an a-phase voltage line, a B-phase voltage line and a C-phase voltage line are arranged at the lower part, first voltage output ports 1-1, 5-1 and 9-1 and second voltage output ports 1-2, 5-2 and 9-2 are respectively arranged at the upper part, the voltage input ports 1, 6 and 7 are respectively connected with the a-phase voltage terminal, the B-phase voltage terminal and the C-phase voltage terminal of the voltage transformer 3 through voltage lines, the first voltage output ports 1-1, 5-1 and 9-1 are respectively connected with the a-phase voltage terminal, the B-phase voltage terminal and the C-phase voltage terminal of the electric energy meter 1 through voltage lines, and the second voltage output ports 1-2, 5-2 and 9-2 are respectively connected with the a-phase voltage terminal, the B-phase voltage terminal and the C-phase voltage terminal of the negative control terminal 2 through voltage lines. When the negative control terminal 2 is replaced, the second voltage connecting pieces 5c corresponding to the second voltage output ports 1-2, 5-2 and 9-2 are disconnected, and the negative control terminal 2 is in a voltage-losing state; when the electric energy meter 1 is replaced, the first voltage connecting pieces 5b corresponding to the columns of the first voltage output ports 1-1, 5-1 and 9-1 are disconnected, and the electric energy meter 1 is in a voltage-losing state.
In one possible implementation, the current control portion is disposed between two adjacent sets of voltage control portions for ease of operation. The positional relationship between the current control unit and the voltage control unit may be adjusted according to actual conditions.
It should be noted that, in this embodiment, the connection mode of the junction box and the household line, the negative control terminal 2, and the electric energy meter 1 is a connection mode suitable for a two-way three-phase three-wire line, but this embodiment is not limited to a two-way three-phase three-wire line, and is also suitable for circuits such as a three-way three-wire line, a three-way three-phase four-wire circuit, and the like by increasing or decreasing the number and arrangement of the current control terminals and the voltage control terminals.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (8)
1. The multi-channel electric energy metering junction box is connected between an electric energy meter, a negative control terminal and a household line, a current transformer and a voltage transformer are arranged on the household line, the multi-channel electric energy metering junction box comprises a plurality of voltage control parts and a current control part, the voltage control part is provided with two voltage connecting pieces for respectively controlling the voltage loss of the electric energy meter and the negative control terminal, and the multi-channel electric energy metering junction box is characterized in that the current control part comprises a current input circuit, a first current connecting terminal, a second current connecting terminal, a current string connecting terminal, a first current connecting piece and a second current connecting piece;
one end of the current input circuit is used for being connected with the current transformer, and the other end of the current input circuit, the first current wiring terminal, the current coil of the electric energy meter, the current string connecting wire terminal, the second current wiring terminal and the current coil of the negative control terminal are sequentially connected to form a current loop; the first current connecting piece is arranged between the first current wiring terminal and the current string connecting wire terminal, and the second current connecting piece is arranged between the second current wiring terminal and the current string connecting wire terminal;
the current string connecting wire terminal comprises a first copper block and a first conductive screw connected to the first copper block;
one end of each of the first current connecting piece and the second current connecting piece is provided with a first connecting hole matched with the first conductive screw;
the first copper block and the first conductive screw are arranged, so that the first current connecting sheet and the second current connecting sheet are connected through a current series connection terminal;
the first current wiring terminal comprises a second conductive screw, and a second connecting hole matched with the second conductive screw is formed in the other end of the first current connecting piece;
the second current wiring terminal comprises a third conductive screw, and a third connecting hole matched with the third conductive screw is formed in the other end of the second current connecting piece.
2. The multi-path electrical energy metering junction box of claim 1 wherein said current input circuit is provided with a current input port connected to said current transformer;
the current control part is provided with a first port, a second port, a third port and a fourth port;
the first port and the second port are both connected with the electric energy meter, and the third port and the fourth port are both connected with the negative control terminal.
3. The multi-path electric energy metering junction box according to claim 1, wherein said voltage control section includes a voltage input circuit having one end for connection to said voltage transformer;
the two voltage connection pieces are divided into a first voltage connection piece and a second voltage connection piece, the other end of the voltage input circuit can be connected with a voltage coil of the electric energy meter through the first voltage connection piece, and the other end of the voltage input circuit can be connected with a voltage coil of the negative control terminal through the second voltage connection piece.
4. The multi-way electrical energy metering junction box of claim 3 wherein said voltage input circuit comprises a second copper block and a fourth conductive screw connected to said second copper block;
and one ends of the first voltage connecting sheet and the second voltage connecting sheet are respectively provided with a fourth connecting hole matched with the fourth conductive screw.
5. The multi-way electrical energy metering junction box of claim 4 wherein said second copper block is a T-shaped copper block.
6. The multi-way electrical energy metering junction box of claim 3 wherein said voltage control portion further comprises a fifth electrically conductive screw and a sixth electrically conductive screw;
the other end of the first voltage connecting piece is detachably connected with the fifth conductive screw, and the other end of the second voltage connecting piece is detachably connected with the sixth conductive screw.
7. The multi-channel electric energy metering junction box according to claim 3, wherein the voltage control part is further provided with a first voltage output port, a second voltage output port and a voltage input port connected with a voltage transformer, and the first voltage output port and the second voltage output port are respectively electrically connected with the electric energy meter and the negative control terminal.
8. The multiple electrical energy metering junction box of any of claims 1 to 7 wherein the current control portions are provided between two adjacent sets of voltage control portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321160348.8U CN220473599U (en) | 2023-05-15 | 2023-05-15 | Multipath electric energy metering junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321160348.8U CN220473599U (en) | 2023-05-15 | 2023-05-15 | Multipath electric energy metering junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220473599U true CN220473599U (en) | 2024-02-09 |
Family
ID=89804757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321160348.8U Active CN220473599U (en) | 2023-05-15 | 2023-05-15 | Multipath electric energy metering junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220473599U (en) |
-
2023
- 2023-05-15 CN CN202321160348.8U patent/CN220473599U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3125394A1 (en) | Unified power flow controller for double-circuit line | |
| CN102177634A (en) | Wind energy plant testing device | |
| CN211296072U (en) | Junction box for realizing seamless measurement of electric energy meter replacement | |
| US20140176088A1 (en) | Distribution transformer power flow controller | |
| CN104991482A (en) | Dual transformation ratio metering intelligent controlling device and control mode thereof | |
| CN101354956A (en) | Large-capacity double-body phase-shifting transformator | |
| CN102842967B (en) | Power transmission line self-power collecting device | |
| CN103178527B (en) | Voltage deviation adjustor | |
| CN220473599U (en) | Multipath electric energy metering junction box | |
| CN202918048U (en) | Automatic transfer switching equipment | |
| CN206364576U (en) | PT secondary voltages switching circuit and its protective loop that double-bus is powered | |
| CN112164559A (en) | Self-adaptive variable-range current transformer | |
| CN109637792B (en) | Test transformer | |
| CN2625948Y (en) | Noncontact compensating power stabilizer | |
| CN102136354A (en) | Large-range on-load tap changer (OLTC) for testing | |
| CN215578126U (en) | Forced shunting balance transformer | |
| CN211579608U (en) | Low-voltage phase-change switch | |
| CN201465772U (en) | Structure of T-shaped wiring traction transformer | |
| CN110233072B (en) | On-load tap-changer with equally distributed static contacts | |
| CN101944711A (en) | Distribution box | |
| CN203193283U (en) | Voltage deviation regulator | |
| CN113595397A (en) | Multi-port energy router with high-frequency voltage-sharing collection bus | |
| CN201601499U (en) | Pole-mounted low-voltage reactive power automatic compensator | |
| CN214174478U (en) | Special terminal box of electric energy measurement | |
| CN220254181U (en) | Dual-power switching circuit and power supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |