CN215120281U - Metering switching device for power supply gateway of circuit ring network - Google Patents
Metering switching device for power supply gateway of circuit ring network Download PDFInfo
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- CN215120281U CN215120281U CN202121434514.XU CN202121434514U CN215120281U CN 215120281 U CN215120281 U CN 215120281U CN 202121434514 U CN202121434514 U CN 202121434514U CN 215120281 U CN215120281 U CN 215120281U
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Abstract
The utility model provides a metering switching device for a power supply gateway of a circuit looped network, which comprises a first wiring port, a second wiring port, a meter wiring port and a line loss metering wiring port; the first wiring port is connected with the wiring port of the meter; the meter wiring port is connected with the line loss measurement wiring port; the first wiring port is connected with the line loss measurement wiring port, and the line loss measurement wiring port is connected with the second wiring port. Make circuit A looks, C phase current pass through the adapter through this device after, earlier through the strapping table, to the distribution terminal again, neither change distribution terminal line protect function, gateway measurement problem when can realizing the looped netowrk power supply again need not the operation of having a power failure simultaneously, overcomes the difficult problem that traditional combination formula mutual-inductor can't be electrified to be inserted, effectively promotes power supply reliability and contemporary line loss manageability.
Description
Technical Field
The utility model relates to a circuit measurement technical field, concretely relates to circuit looped netowrk power supply gateway measurement switching device.
Background
With the wide application of distribution automation, the construction of connection lines becomes a key factor for optimizing the grid structure and improving the reliability of power supply.
In the prior art, when a 10kV circuit looped network supplies power, line loss in a synchronous system fluctuates due to the fact that a contact gateway lacks a metering device, the line loss rate change trend is difficult to analyze, judge and grasp, various influence factors causing abnormal fluctuation of the line loss are covered, and deep-level problems such as abnormal acquisition, electricity stealing and the like cannot be found in time through sensitive reaction of the line loss rate of the synchronous system.
Traditional gateway measurement needs to access the electric wire netting through combined transformer, can't realize live working and insert.
Disclosure of Invention
Need insert the electric wire netting through combination formula mutual-inductor to traditional gateway measurement, can't realize the problem that live working inserted, the utility model provides a circuit looped netowrk power supply gateway measurement switching device.
The technical scheme of the utility model is that:
the utility model provides a metering switching device for a power supply gateway of a circuit looped network, which comprises a first wiring port, a second wiring port, a meter wiring port and a line loss metering wiring port;
the first wiring port is connected with the wiring port of the meter; the meter wiring port is connected with the line loss measurement wiring port;
the first wiring port is connected with the line loss measurement wiring port, and the line loss measurement wiring port is connected with the second wiring port.
Preferably, the first wiring port and the second wiring port both include an a-phase current end and a C-phase current end;
the meter wiring port and the line loss measurement wiring port respectively comprise an A-phase current inlet end, a C-phase current inlet end, an A-phase current outlet end and a C-phase current outlet end;
the A-phase current end of the first wiring port is connected with the A-phase current inlet end of the meter wiring port, the A-phase current outlet end of the meter wiring port is connected with the A-phase current inlet end of the line loss metering wiring port, and the A-phase current outlet end of the line loss metering wiring port is connected with the A-phase current end of the second wiring port;
the C phase current end of the first wiring port is connected with the C phase current inlet end of the meter wiring port, the C phase current outlet end of the meter wiring port is connected with the C phase current inlet end of the line loss metering wiring port, and the C phase current outlet end of the line loss metering wiring port is connected with the C phase current end of the second wiring port.
When the loop network power supply system is used specifically, the phase A and the phase C of the circuit firstly pass through the metering meter connected with the wiring port of the metering meter and then reach the power distribution terminal connected with the second wiring port, the circuit protection function of the power distribution terminal is not changed, and the problem of gateway metering during the loop network power supply can be solved.
Preferably, the first wiring port and the second wiring port both include a B-phase current end, an N-phase current end, a zero-sequence current end, and a common end;
the line loss measurement wiring port comprises a B-phase current inlet end, an N-phase current inlet end, a zero-sequence wire inlet current end, a wire inlet public end, a B-phase current outlet end, an N-phase current outlet end, a zero-sequence wire outlet current end and a wire outlet public end;
the B-phase current end of the first wiring port is connected with the B-phase current inlet end of the line loss metering wiring port, and the B-phase current outlet end of the line loss metering wiring port is connected with the B-phase current end of the second wiring port;
the N-phase current end of the first wiring port is connected with the N-phase current inlet end of the line loss metering wiring port, and the N-phase current outlet end of the line loss metering wiring port is connected with the N-phase current end of the second wiring port;
the zero sequence current end of the first wiring port is connected with the zero sequence incoming line current end of the line loss metering wiring port, and the zero sequence outgoing line current end of the line loss metering wiring port is connected with the zero sequence current end of the second wiring port;
the public end of the first wiring port is connected with the incoming line public end of the line loss metering wiring port, and the outgoing line public end of the line loss metering wiring port is connected with the public end of the second wiring port.
Through the external metering equipment of strapping table wiring port and line loss measurement wiring port, need not the power failure operation, overcome the difficult problem that traditional combined transformer can't insert with electricity, effectively promote power supply reliability and contemporary line loss managerial ability.
Preferably, the device further comprises a casing, and the first wiring port, the second wiring port, the meter wiring port and the line loss metering wiring port are all arranged on the casing.
In order to facilitate use, the port is arranged on the shell, and the port is directly plugged in the shell during use, so that the operation is simple, and the time is saved.
Preferably, the first wiring port, the second wiring port and the line loss measurement wiring port are aviation plugs. The aviation plug has strong insulating property and can be accessed in live working.
Preferably, the meter connection port is a meter junction box to facilitate access of the timepiece meter for ease of use.
Preferably, the first connection port is an aircraft plug for connection to the switch side and the second connection port is an aircraft plug for connection to the distribution terminal side. The measurement of electric current between the switch on the post and the power distribution terminal realizes the switching-over of A phase and C phase current in the current line, and the A phase and C phase current on the line firstly pass through the gauge and then reach the power distribution terminal.
According to the technical scheme, the utility model has the advantages of it is following: through repacking column switch to distribution terminal current wiring mode within a definite time, make circuit A looks, C phase current pass through the adapter after, earlier through the strapping table, arrive distribution terminal again, neither change distribution terminal line protect function, gateway measurement problem when can realizing the looped netowrk power supply again need not the power failure operation simultaneously, overcomes the difficult problem that traditional combination formula mutual-inductor can't electrified the access, effectively promotes power supply reliability and contemporary line loss managerial ability.
Furthermore, the utility model relates to a principle is reliable, and simple structure has very extensive application prospect.
Therefore, compared with the prior art, the utility model has the outstanding substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic block diagram of an apparatus of an embodiment of the present invention;
fig. 2 is a schematic structural connection diagram of an apparatus according to an embodiment of the present invention;
the meter comprises a meter wiring port, a first wiring port, a second wiring port, a meter wiring port, a 4-line loss metering wiring port, a meter wiring port A, a meter wiring port C, a meter wiring port A, and a meter wiring port C, wherein the meter wiring port C is connected with the meter wiring port A, the meter wiring port C is connected with the meter wiring port C, and the meter wiring port C is connected with the meter wiring port C.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
As shown in fig. 1-2, an embodiment of the present invention provides a metering and switching device for a power supply gateway of a line ring network, which includes a first wiring port 1, a second wiring port 2, a meter wiring port 3, and a line loss metering wiring port 4;
the first wiring port 1 is connected with the meter wiring port 3; the meter wiring port 3 is connected with the line loss metering wiring port 4;
first wiring port 1 is connected with line loss measurement wiring port 4, and line loss measurement wiring port 4 is connected with second wiring port 2.
In some embodiments, the first connection port 1 and the second connection port 2 each include an a-phase current terminal and a C-phase current terminal;
the meter wiring port 3 and the line loss metering wiring port 4 both comprise an A-phase current inlet end, a C-phase current inlet end, an A-phase current outlet end and a C-phase current outlet end;
the A-phase current end of the first wiring port 1 is connected with the A-phase current inlet end 5 of the meter wiring port, the A-phase current outlet end 7 of the meter wiring port is connected with the A-phase current inlet end of the line loss metering wiring port 4, and the A-phase current outlet end of the line loss metering wiring port 4 is connected with the A-phase current end of the second wiring port 2;
the C phase current end of the first wiring port 1 is connected with the C phase current inlet end 6 of the meter wiring port, the C phase current outlet end 8 of the meter wiring port is connected with the C phase current inlet end of the line loss metering wiring port 4, and the C phase current outlet end of the line loss metering wiring port 4 is connected with the C phase current end of the second wiring port 2.
When the loop network power supply device is used specifically, the phase A and phase C currents of a line pass through the metering meter connected with the metering meter wiring port 3 and then reach the power distribution terminal connected with the second wiring port 2, the line protection function of the power distribution terminal is not changed, and the problem of metering of a gateway during loop network power supply can be solved.
In some embodiments, the first wiring port 1 and the second wiring port 2 each include a B-phase current end, an N-phase current end, a zero-sequence current end, and a common end;
the line loss measurement wiring port 4 comprises a B-phase current inlet end, an N-phase current inlet end, a zero-sequence wire inlet current end, a wire inlet public end, a B-phase current outlet end, an N-phase current outlet end, a zero-sequence wire outlet current end and a wire outlet public end;
the B-phase current end of the first wiring port 1 is connected with the B-phase current inlet end of the line loss metering wiring port 4, and the B-phase current outlet end of the line loss metering wiring port 4 is connected with the B-phase current end of the second wiring port 2;
the N-phase current end of the first wiring port 1 is connected with the N-phase current inlet end of the line loss metering wiring port 4, and the N-phase current outlet end of the line loss metering wiring port 4 is connected with the N-phase current end of the second wiring port 2;
the zero sequence current end of the first wiring port 1 is connected with the zero sequence incoming current end of the line loss metering wiring port 4, and the zero sequence outgoing current end of the line loss metering wiring port 4 is connected with the zero sequence current end of the second wiring port 2;
the public end of the first wiring port 1 is connected with the incoming line public end of the line loss metering wiring port 4, and the outgoing line public end of the line loss metering wiring port 4 is connected with the public end of the second wiring port 2.
Through the external metering equipment of strapping table wiring port 3 and line loss measurement wiring port 4, need not the power failure operation, overcome the difficult problem that traditional combined transformer can't insert with electricity, effectively promote power supply reliability and contemporary line loss managerial ability.
In some embodiments, the apparatus further comprises a housing, and the first wiring port 1, the second wiring port 2, the meter wiring port 3, and the line loss measurement wiring port 4 are disposed on the housing.
In order to facilitate use, the port is arranged on the shell, and the port is directly plugged in the shell during use, so that the operation is simple, and the time is saved.
In some embodiments, the first patch port 1, the second patch port 2, and the line loss metering patch port 4 are aircraft plugs. The aviation plug has strong insulating property and can be accessed in live working.
In some embodiments, meter connector port 3 is a meter connector for facilitating access to a meter when the meter is in use.
In some embodiments, the first connection port 1 is an aviation plug for connection to the switch side and the second connection port 2 is an aviation plug for connection to the distribution terminal side. The measurement of electric current between the switch on the post and the power distribution terminal realizes the switching-over of A phase and C phase current in the current line, and the A phase and C phase current on the line firstly pass through the gauge and then reach the power distribution terminal.
On the basis of above-mentioned embodiment, the embodiment of the utility model provides an adopt circuit looped netowrk power supply gate measurement switching device to carry out the measurement test to 10kV circuit, column switch installation is on 10kV circuit, through switch divide-shut brake function, realizes the circuit segmentation power supply, if when one section circuit broke down, trouble anterior segment switch disconnection, trouble back end switch disconnection, keep apart trouble section circuit, trouble rear end switch passes through the contact line power supply to this circuit end load simultaneously. The power distribution system is connected with the column switch and the power distribution terminal through the current line, the control cable and the power line, receives information such as current and voltage from a 10kV circuit, can set action values of quick-break protection and overcurrent protection, and if the circuit breaks down after the switch, the fault current exceeds a set value, the power distribution terminal sends a fault signal, and the column switch is connected and disconnected through the control cable, so that the power distribution automation function is realized.
The current line between the pole-mounted switch and the power distribution terminal is six cores and is defined as an A-phase current, a B-phase current, a C-phase current, a common end of the phase currents, a zero-sequence current and a common end of the zero-sequence current. Line loss measurement needs circuit A looks and C phase current, realizes the switching of A looks and C phase current in the electric current line through this device, and A looks and C phase current pass through the strapping table earlier on the circuit, arrives distribution terminal again. The device carries out insulation treatment on all current wires, adopts the aviation plug for switching, and has the advantages of no error in electric quantity calculation and protection functions, strong insulating property of the aviation plug and hot-line work access after test and field verification.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A metering switching device for a power supply gateway of a circuit ring network is characterized by comprising a first wiring port, a second wiring port, a meter wiring port and a line loss metering wiring port;
the first wiring port is connected with the wiring port of the meter; the meter wiring port is connected with the line loss measurement wiring port;
the first wiring port is connected with the line loss measurement wiring port, and the line loss measurement wiring port is connected with the second wiring port.
2. The metering and switching device for the line ring network power supply gateway as claimed in claim 1, wherein the first wiring port and the second wiring port both comprise an a-phase current end and a C-phase current end;
the meter wiring port and the line loss measurement wiring port respectively comprise an A-phase current inlet end, a C-phase current inlet end, an A-phase current outlet end and a C-phase current outlet end;
the A-phase current end of the first wiring port is connected with the A-phase current inlet end of the meter wiring port, the A-phase current outlet end of the meter wiring port is connected with the A-phase current inlet end of the line loss metering wiring port, and the A-phase current outlet end of the line loss metering wiring port is connected with the A-phase current end of the second wiring port;
the C phase current end of the first wiring port is connected with the C phase current inlet end of the meter wiring port, the C phase current outlet end of the meter wiring port is connected with the C phase current inlet end of the line loss metering wiring port, and the C phase current outlet end of the line loss metering wiring port is connected with the C phase current end of the second wiring port.
3. The line looped network power supply gateway metering and switching device according to claim 2, wherein the first wiring port and the second wiring port each include a B-phase current end, an N-phase current end, a zero-sequence current end, and a common end;
the line loss measurement wiring port comprises a B-phase current inlet end, an N-phase current inlet end, a zero-sequence wire inlet current end, a wire inlet public end, a B-phase current outlet end, an N-phase current outlet end, a zero-sequence wire outlet current end and a wire outlet public end;
the B-phase current end of the first wiring port is connected with the B-phase current inlet end of the line loss metering wiring port, and the B-phase current outlet end of the line loss metering wiring port is connected with the B-phase current end of the second wiring port;
the N-phase current end of the first wiring port is connected with the N-phase current inlet end of the line loss metering wiring port, and the N-phase current outlet end of the line loss metering wiring port is connected with the N-phase current end of the second wiring port;
the zero sequence current end of the first wiring port is connected with the zero sequence incoming line current end of the line loss metering wiring port, and the zero sequence outgoing line current end of the line loss metering wiring port is connected with the zero sequence current end of the second wiring port;
the public end of the first wiring port is connected with the incoming line public end of the line loss metering wiring port, and the outgoing line public end of the line loss metering wiring port is connected with the public end of the second wiring port.
4. The line ring network power supply gateway metering and switching device as claimed in claim 3, further comprising a housing, wherein the first wiring port, the second wiring port, the meter wiring port and the line loss metering wiring port are all disposed on the housing.
5. The line looped network power supply gateway metering and switching device according to claim 3 or 4, wherein the first wiring port, the second wiring port and the line loss metering and wiring port are all aviation plugs.
6. The line ring network power supply gateway metering adapter device of claim 1, wherein the meter wiring port is a meter junction box.
7. The line looped network supply gateway metering and switching device according to claim 3, 4 or 6, characterized in that the first wiring port is an aviation plug for connecting to a switch side, and the second wiring port is an aviation plug for connecting to a power distribution terminal side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121434514.XU CN215120281U (en) | 2021-06-25 | 2021-06-25 | Metering switching device for power supply gateway of circuit ring network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121434514.XU CN215120281U (en) | 2021-06-25 | 2021-06-25 | Metering switching device for power supply gateway of circuit ring network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215120281U true CN215120281U (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121434514.XU Active CN215120281U (en) | 2021-06-25 | 2021-06-25 | Metering switching device for power supply gateway of circuit ring network |
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| Country | Link |
|---|---|
| CN (1) | CN215120281U (en) |
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2021
- 2021-06-25 CN CN202121434514.XU patent/CN215120281U/en active Active
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