CN112103774A - Secondary circuit quick connecting device and low-voltage distribution cabinet - Google Patents
Secondary circuit quick connecting device and low-voltage distribution cabinet Download PDFInfo
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- CN112103774A CN112103774A CN202010770628.5A CN202010770628A CN112103774A CN 112103774 A CN112103774 A CN 112103774A CN 202010770628 A CN202010770628 A CN 202010770628A CN 112103774 A CN112103774 A CN 112103774A
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 17
- 229910052802 copper Inorganic materials 0.000 claims description 17
- 239000010949 copper Substances 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000012423 maintenance Methods 0.000 description 10
- 238000012544 monitoring process Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000003825 pressing Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a quick connecting device of a secondary circuit, which is used for a low-voltage power distribution cabinet and comprises a wiring assembly and a secondary wiring controller, wherein the wiring assembly and the secondary wiring controller are arranged in the cabinet body of the low-voltage power distribution cabinet; and the secondary wiring controller is provided with a current plectrum switch for short-circuiting the current transformer, a first indicator for representing the working state of a current secondary circuit and a self-checking button connected with the first indicator. The low-voltage power distribution cabinet based on the quick connecting device is also disclosed. The invention reduces the wiring difficulty of the secondary circuit in the low-voltage power distribution cabinet, improves the working efficiency and the accuracy of wiring, and can detect the working state of the secondary circuit and protect equipment and personal safety.
Description
Technical Field
The invention relates to the field of power equipment, in particular to a secondary circuit quick connecting device and a low-voltage power distribution cabinet.
Background
The secondary circuit is an electrical circuit formed by connecting secondary equipment to monitor, control, adjust and protect the primary equipment, a current transformer is generally connected to the incoming copper bar and then connected with each secondary equipment, the current transformer and the secondary equipment form a current secondary circuit, in addition, the incoming copper bar provides alternating current for the secondary equipment, and the incoming copper bar and the secondary equipment form a secondary equipment power supply circuit. The existing secondary circuit has a plurality of wiring points among all devices, all the devices are manually connected one by one, time and labor are wasted, and errors are easy to occur. In addition, when the low-voltage power distribution cabinet is maintained and overhauled, the current transformer must be short-circuited firstly, the current transformer is prevented from being damaged due to open circuit, a power supply circuit for supplying power to secondary equipment must be broken firstly, and the human body injury caused by electric shock is prevented. At present, the preparation work before maintenance and overhaul needs manual and electrified screwing of screws during wiring, so that great potential safety hazards exist, whether wiring is correct or not cannot be detected after the current wiring is finished, and equipment damage and even personal injury can be caused if the condition that a current transformer is open or a secondary equipment power supply line is not open due to connection errors occurs.
Disclosure of Invention
The invention aims to provide a quick connecting device for a secondary circuit, which can effectively solve the problems that the conventional secondary circuit is complex and tedious in wiring, easy to make mistakes and incapable of detecting whether a current transformer is short-circuited.
In order to solve the technical problems, the invention adopts the following technical scheme: a secondary circuit quick connecting device is used for a low-voltage power distribution cabinet and comprises a wiring assembly and a secondary wiring controller, wherein the wiring assembly and the secondary wiring controller are both arranged in the cabinet body of the low-voltage power distribution cabinet; and the secondary wiring controller is provided with a current plectrum switch for short-circuiting the current transformer, a first indicator for representing the working state of a current secondary circuit and a self-checking button connected with the first indicator.
Preferably, the terminal includes voltage terminal, current terminal and voltage current terminal, and the voltage terminal sets up on the inlet wire copper bar, and the current terminal sets up on current sensor, and the voltage current terminal sets up respectively on secondary wiring controller and secondary equipment. The terminal is divided into a voltage terminal and a current terminal, so that the voltage terminal and the current terminal are respectively and separately plugged when being used conveniently and are easy to identify, and when the terminal is connected with a secondary wiring controller and secondary equipment, the voltage terminal and the current terminal are assembled together to form the voltage and current terminal for convenient one-time plugging.
Preferably, the current plectrum switch is connected in the current secondary loop and in parallel with the secondary device, the first indicator is connected in the current secondary loop and in parallel with the secondary device, and the first indicator is in parallel with the current plectrum switch. The current plectrum switch is parallelly connected with secondary equipment, just so can control current transformer's intercommunication and short circuit through the current plectrum switch, and first indicator is parallelly connected with secondary equipment and parallelly connected with current plectrum switch, like this under the circumstances of current plectrum switch disconnection, presses down self-checking button, and first indicator gives signal representation current secondary circuit normal operation.
Preferably, the secondary wiring controller is further provided with a voltage plectrum switch for disconnecting the power supply circuit of the secondary equipment, and the voltage plectrum switch is connected in the power supply circuit of the secondary equipment and is connected with the secondary equipment in series. The voltage shifting piece switch is connected with the secondary equipment in series, the communication and the open circuit of a power supply circuit of the secondary equipment can be controlled through the voltage shifting piece switch, manual live wiring disconnection operation is avoided, operation is convenient, and safety is high.
Preferably, a second indicator used for representing the working state of the secondary equipment power supply circuit is further arranged on the secondary wiring controller, the second indicator is connected with the self-checking button, the second indicator is connected in the secondary equipment power supply circuit and connected with the secondary equipment in parallel, and the second indicator is connected with the voltage plectrum switch in series. The working state of the secondary equipment power supply circuit can be detected through the second indicator, maintenance and overhaul under the condition that the secondary equipment power supply circuit is not broken are avoided, and equipment and personal safety are protected. And when the voltage plectrum switch is closed, the self-checking button is pressed, and the second indicator gives a signal to indicate that the secondary equipment power supply circuit works normally.
Preferably, the first indicator and the second indicator are LED indicator lights or buzzers. The LED indicating lamp or the buzzer can visually send out signals convenient to understand, and operators can observe and understand conveniently.
The invention also provides a low-voltage power distribution cabinet which comprises the incoming copper bar, the current transformer, the I concentrator, the public distribution transformer monitoring terminal and the connecting device, wherein the incoming copper bar, the current transformer, the I concentrator, the public distribution transformer monitoring terminal and the connecting device are all located in the cabinet body, the incoming copper bar is respectively connected with the I concentrator and the public distribution transformer monitoring terminal through the connecting device to form a secondary equipment power supply circuit, the current transformer is respectively connected with the I concentrator and the public distribution transformer monitoring terminal through the connecting device to form a current secondary circuit, and the connecting device is the quick connecting device for the secondary circuit in any one of the technical schemes. By adopting the quick connecting device for the secondary circuit in the scheme, the low-voltage power distribution cabinet is convenient, quick and accurate in wiring operation and has very high safety.
Compared with the prior art, the invention has the following beneficial effects:
1. conducting wires and connectors in the prior art are subjected to modular design to obtain a wiring assembly, if two components in a secondary circuit need to be connected, the wiring assembly and the two components are connected for one time, the time for manually screwing bolts one by one for connecting in the prior art is saved, and the working efficiency is improved;
2. for a specific secondary circuit, the wiring assembly can be used in all low-voltage power distribution cabinets applying the specific secondary circuit only by one-time pre-design, so that the high-voltage power distribution cabinet has high universality and is convenient to popularize;
3. because the terminal and the plug are designed according to the secondary circuit in advance, the installation and the disassembly can be completed only by simple plugging without worrying about the wrong connection of a certain wire, the operation is simple and convenient, and the error is avoided;
4. the current plectrum switch is preset, and the current transformer can be in short circuit only by shifting the current plectrum switch, so that manual live-wire operation wiring is avoided, and the safety is improved;
5. the self-checking button and the first indicator are preset, the self-checking button is pressed, whether the current transformer is in short circuit or not can be judged according to information fed back by the first indicator, maintenance and overhaul are avoided under the condition that the current transformer is not in short circuit, and safety of equipment and personnel is guaranteed.
Drawings
FIG. 1 is a schematic structural diagram of a secondary circuit quick connection device according to the present invention;
FIG. 2 is a schematic diagram of an application of a secondary circuit quick connection device according to the present invention;
FIG. 3 is a schematic diagram of a secondary wiring controller controlling a secondary current loop according to an embodiment;
fig. 4 is a schematic diagram of a control of a secondary wiring controller to a secondary device power supply circuit in the second embodiment;
fig. 5 is a schematic structural diagram of a low-voltage distribution cabinet in the third embodiment.
The intelligent distribution transformer comprises a wiring assembly 1, a terminal 11, a voltage terminal 110, a current terminal 111, a voltage and current terminal 112, a plug 12, a lead 13, a secondary wiring controller 2, a current plectrum switch 20, a first indicator 21, a voltage plectrum start end 22, a second indicator 23, a self-checking button 24, an incoming line copper bar 3, a current transformer 4, secondary equipment 5, an I concentrator 6, a public distribution transformer monitoring terminal 7 and a cabinet 8.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; may be mechanically coupled, may be electrically coupled, or may be in communication with each other, unless expressly defined otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: as shown in fig. 1 to 3, a secondary circuit quick connection device provided in an embodiment of the present invention includes a wiring assembly 1 and a secondary wiring controller 2, where the wiring assembly 1 and the secondary wiring controller 2 are both installed in a cabinet body of a low-voltage power distribution cabinet, the wiring assembly 1 includes a terminal 11, a plug 12 and a wire 13, the terminal 11 is respectively installed on an incoming copper bar 3, a current transformer 4, the secondary wiring controller 2 and a secondary device 5, two ends of the wire 13 are connected with the plug 12 for matching with the terminal 11, and the plugs 12 at two ends of the wire 13 are respectively inserted into the corresponding terminals 11 to form a current secondary circuit and a secondary device power supply circuit; the secondary wiring controller 2 is provided with a current plectrum switch 20 for short-circuiting the current transformer 4, a first indicator 21 for representing the working state of a current secondary circuit and a self-checking button 24 connected with the first indicator 21.
The wiring assembly 1 is obtained by performing modular design on the wires and the joints in the prior art, and if two parts in a secondary circuit need to be connected, the wiring assembly 1 and the two parts are connected for one time, so that the time for manually screwing bolts one by one for connecting the wires in the prior art is saved, and the working efficiency is improved; in addition, because the terminal 11 and the plug 12 are designed according to the secondary circuit in advance, the installation and the disassembly can be completed only by simple plugging without worrying about wrong connection of a certain wire, the operation is simple and convenient, and the error is avoided. Therefore, when the quick connecting device is used for connecting the secondary circuit related equipment in the low-voltage power distribution cabinet, the quick connecting device has the advantages of convenience, quickness and high accuracy. The current transformer 4 can be in short circuit only by shifting the current plectrum switch 20 through presetting the current plectrum switch 20, so that manual live-line operation wiring is avoided, and the safety is improved; through setting up self-checking button 24 and first indicator 21 in advance, pressing self-checking button 24, can judge whether short circuit of current transformer 4 through the information of first indicator feedback, avoid carrying out the maintenance under the condition of not short circuit current transformer 4 and overhaul, guarantee equipment and personnel's safety. And for a specific secondary circuit, the wiring assembly provided by the invention can be used in all low-voltage power distribution cabinets applying the specific secondary circuit only by one-time pre-design, and has high universality and convenience in popularization.
Wherein, for facilitating the operation of plugging terminal 11 and plug 12, terminal 11 includes voltage terminal 110, current terminal 111 and voltage current terminal 112, and voltage terminal 110 sets up on inlet wire copper bar 3, and current terminal 111 sets up on current sensor 4, and voltage current terminal 112 sets up respectively on secondary wiring controller 2 and secondary equipment 5. This allows easy identification of the individual plugs when they are disconnected, and allows the voltage and current terminals 110 and 112 to be assembled together as voltage and current terminals 112 when connected to the secondary wiring controller 2 and secondary equipment 5 for one-time plugging. Thus, the method has higher flexibility and simpler and more convenient operation.
In the present embodiment, the current paddle switch 20 is connected in the current secondary circuit and connected in parallel with the secondary device 5, the first indicator 21 is connected in the current secondary circuit and connected in parallel with the secondary device 5, and the first indicator 21 is connected in parallel with the current paddle switch 20. The current plectrum switch 20 is connected with the secondary equipment 5 in parallel, so that the communication and short circuit of the current transformer 2 can be controlled through the current plectrum switch 20, the self-checking button 24 is pressed down, and the working state of a current secondary circuit can be judged through a signal sent by the first indicator 21.
The first indicator mentioned in the invention can be an LED indicator light or a buzzer, both of which can send clear and clear signals easy to understand.
The working principle of short-circuiting the current transformer 4 and detecting the working state of the current secondary circuit by using the secondary wiring controller 2 mentioned in the embodiment is as follows: as shown in fig. 3, the three-phase current terminal 111(Ia/Ib/Ic) has a line inlet terminal and a line outlet terminal, and is connected to the secondary wiring controller 2 and the secondary device 5 through the wires 13, respectively, to form a current secondary loop. The current plectrum switch 20 is preset, so that the current plectrum switch 20 is connected with the secondary equipment 5 in parallel, and the current transformer 4 is short-circuited when the current plectrum switch 20 is closed, thereby avoiding manual live-line operation wiring and improving safety. When the current plectrum switch 20 is turned off, the self-checking switch 24 is pressed, if the first indicator 21 is on, the working state of the current secondary circuit is normal, and the connection is correct, and if the first indicator 21 is not on, the working state of the current secondary circuit is incorrect, the connection has problems, and errors need to be found and corrected. If the first indicator 21 is detected to be on through the steps, and the working state of the current secondary circuit is normal, the current toggle switch 20 is closed, if the first indicator 21 is turned off, it is indicated that the current transformer 4 has been successfully short-circuited, if the first indicator 21 is still on, it is indicated that the current transformer 4 has not been short-circuited, and if maintenance and repair work needs to be performed, the current transformer 4 needs to be checked first, and it is ensured that the current transformer 4 is short-circuited, and then the next step of work can be performed. Therefore this quick connecting device that this embodiment provided can effectually detect current secondary circuit operating condition, judges current transformer 4 whether short circuit, avoids maintaining under the condition of not short circuit current transformer 4 and overhauls, guarantees equipment and personnel's safety.
Example two: as shown in fig. 4, the present embodiment is different from the above-mentioned embodiments in that the secondary connection controller 2 in the present embodiment is further provided with a voltage paddle switch 22 for disconnecting the secondary device power supply circuit, and the voltage paddle switch 22 is connected in the secondary device power supply circuit and is connected in series with the secondary device 5.
Based on the above distinguishing technical features, the quick connection device provided by this embodiment can control the connection and disconnection of the secondary device power supply circuit through the voltage toggle switch 22, so as to avoid manual live wiring disconnection operation, and therefore has higher safety.
In this embodiment, a second indicator 23 for representing the working state of the secondary equipment power supply circuit is further arranged on the secondary wiring controller 2, the second indicator 23 is also connected with a self-checking button 24, the second indicator 23 is connected in the secondary equipment power supply circuit and is connected in parallel with the secondary equipment 5, and the second indicator is connected in series with the 23 voltage toggle switch 22. The working state of the secondary equipment power supply circuit can be detected through the second indicator 23, maintenance and overhaul under the condition that the secondary equipment power supply circuit is not broken are avoided, and equipment and personal safety are protected.
Wherein the second indicator 23 may be an LED indicator lamp or a buzzer. The LED indicating lamp or the buzzer can visually send out signals convenient to understand, and operators can observe and understand conveniently. In this embodiment, the second indicator 23 is an LED indicator.
The working principle of utilizing the secondary wiring controller 2 in the embodiment to open the circuit of the secondary equipment power supply circuit and detect the working state of the secondary equipment power supply circuit is as follows: as shown in fig. 4, the lead 13 from the three-phase voltage terminal 110(Ua/Ub/Uc) is connected to the secondary connection controller 2 and the secondary device 5, and finally connected to the voltage terminal 110(Un) to form a secondary device power supply circuit. The secondary equipment power supply circuit can be connected by closing the voltage plectrum switch 22, and the secondary equipment power supply circuit can be disconnected by opening the voltage plectrum switch 22. When the voltage plectrum switch 22 is closed, the self-checking button 24 is pressed, if the second indicator 23 is on, the working state of the secondary equipment power supply circuit is normal, and if the second indicator 23 is not on, the working state of the secondary equipment power supply circuit is in a problem, and the connection line needs to be checked. If the second indicator 23 is found to be on through the steps, the working state of the secondary equipment power supply circuit is normal, the voltage toggle switch 22 is turned off, if the second indicator 23 is turned off, the secondary equipment power supply circuit is broken, maintenance and inspection can be carried out, and if the second indicator 23 is still kept on, the secondary equipment power supply circuit is still in a connected state, and inspection is carried out. Therefore, maintenance and repair can be avoided under the condition that the power supply circuit of the secondary equipment is not broken, and equipment and personal safety can be protected.
Example three: as shown in fig. 5, this embodiment provides a low-voltage power distribution cabinet, including inlet copper bar 3, current transformer 4, I concentrator 6, public distribution transformer monitor terminal 7 and connecting device, inlet copper bar 3, current transformer 4, I concentrator 6, public distribution transformer monitor terminal 7 and connecting device all are located cabinet 8, inlet copper bar 3 is connected with I concentrator 6, public distribution transformer monitor terminal 7 respectively through connecting device and forms secondary device power supply circuit, current transformer 4 is connected with I concentrator 6, public distribution transformer monitor terminal 7 respectively through connecting device and forms the current secondary circuit, connecting device is the quick connecting device of secondary circuit that provides in the second embodiment of the above-mentioned. Due to the adoption of the secondary circuit quick connecting device, the low-voltage power distribution cabinet is convenient, quick and accurate in wiring operation and has very high safety, and the following description is given:
the I concentrator 6 is mainly used for collecting, processing and storing power consumption data, the public distribution transformer monitoring terminal 7 is mainly used for monitoring the running condition of a transformer, the two are secondary devices commonly used in a low-voltage power distribution cabinet, the secondary circuit of the application I concentrator 6 and the public distribution transformer monitoring terminal 7 is designed, matched terminals 11, plugs 12 and wires 13 are designed, and the connection of the secondary circuit can be completed only through simple plugging. After connection is completed, the current plectrum switch 20 is disconnected, the voltage plectrum switch 22 is closed, the current secondary circuit and the secondary equipment power supply circuit can be communicated, the self-checking button 24 can be pressed for detection, and if the first indicator 21 and the second indicator 23 are both lightened, the current secondary circuit and the secondary equipment power supply circuit are both in a normal working state, and wiring is accurate; if the first indicator 21 and the second indicator 23 are not lit, the corresponding circuit operation state is in a problem, and inspection is required. If the equipment in the low-voltage power distribution cabinet needs to be maintained and overhauled, the current transformer 4 needs to be short-circuited before maintenance and overhaul, and the secondary equipment power supply circuit needs to be broken, at this time, the detection of the steps needs to be carried out firstly, under the condition that the first indicator 21 and the second indicator 23 are both lighted up, and the current secondary circuit and the secondary equipment power supply circuit are both in a normal working state, the current plectrum switch 20 is closed, and the voltage plectrum switch 22 is opened, at this time, if the first indicator 21 is extinguished, the current transformer 4 is short-circuited, and if the second indicator 22 is extinguished, the secondary equipment power supply circuit is broken, the equipment can be maintained and overhauled; otherwise, if the first indicator 21 still remains bright, it indicates that the current transformer 4 is not short-circuited, and if the second indicator 22 still remains bright, it indicates that the power supply circuit of the secondary equipment is not open-circuited, and at this time, in order to protect the equipment and personal safety, it is necessary to perform a work of checking to find a wiring error, and then performing maintenance and repair.
The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.
Claims (7)
1. The utility model provides a secondary circuit quick connecting device for low-voltage distribution cabinet, its characterized in that: the low-voltage distribution cabinet is characterized by comprising a wiring assembly (1) and a secondary wiring controller (2), wherein the wiring assembly (1) and the secondary wiring controller (2) are installed in a low-voltage distribution cabinet body, the wiring assembly (1) comprises terminals (11), plugs (12) and wires (13), the terminals (11) are respectively installed on an incoming line copper bar (3), a current transformer (4), the secondary wiring controller (2) and secondary equipment (5), the plugs (12) are connected to two ends of the wires (13) and used for being matched with the terminals (11), and the plugs (12) at two ends of the wires (13) are respectively inserted into the corresponding terminals (11) to form a current secondary circuit and a secondary equipment (5) power supply circuit;
and a current plectrum switch (20) for short-circuiting the current transformer (4), a first indicator (21) for representing the working state of a current secondary loop and a self-checking button (24) connected with the first indicator (21) are arranged on the secondary wiring controller (2).
2. A secondary circuit quick connect apparatus as claimed in claim 1, wherein: terminal (11) include voltage terminal (110), current terminal (111) and voltage current terminal (112), voltage terminal (110) set up on inlet wire copper bar (3), current terminal (111) set up on current sensor, voltage current terminal (112) set up respectively on secondary wiring controller (2) and secondary equipment (5).
3. A secondary circuit quick connect apparatus as claimed in claim 2, wherein: the current plectrum switch (20) is connected in the current secondary circuit and is connected with the secondary equipment (5) in parallel, the first indicator (21) is connected in the current secondary circuit and is connected with the secondary equipment (5) in parallel, and the first indicator (21) is connected with the current plectrum switch (20) in parallel.
4. A secondary circuit quick connect apparatus as claimed in any one of claims 1 to 3 wherein: and the secondary wiring controller (2) is also provided with a voltage plectrum switch (22) for breaking a power supply circuit of the secondary equipment (5), and the voltage plectrum switch (22) is connected in the power supply circuit of the secondary equipment (5) and is connected with the secondary equipment (5) in series.
5. A secondary circuit quick connect apparatus as claimed in claim 4, wherein: still be equipped with second indicator (23) that is used for representing secondary equipment (5) supply circuit operating condition on secondary wiring controller (2), second indicator (23) with self-checking button (24) are connected, second indicator (23) are connected in secondary equipment (5) supply circuit and are parallelly connected with secondary equipment (5), second indicator (23) and voltage plectrum switch (22) are established ties.
6. A secondary circuit quick connect apparatus as claimed in claim 5, wherein: the first indicator (21) and the second indicator (23) are LED indicator lights or buzzers.
7. The utility model provides a low-voltage distribution cabinet, includes the cabinet body (8), inlet wire copper bar (3), current transformer (4), I concentrator (6), public distribution transformer monitor terminal (7) and connecting device all are located cabinet body (8), inlet wire copper bar (3) are connected formation secondary equipment (5) supply circuit through connecting device respectively with I concentrator (6), public distribution transformer monitor terminal (7), current transformer (4) are connected formation electric current secondary circuit through connecting device respectively with I concentrator (6), public distribution transformer monitor terminal (7), its characterized in that: the connection device is a secondary circuit quick connection device as claimed in any one of the preceding claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010770628.5A CN112103774A (en) | 2020-08-04 | 2020-08-04 | Secondary circuit quick connecting device and low-voltage distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010770628.5A CN112103774A (en) | 2020-08-04 | 2020-08-04 | Secondary circuit quick connecting device and low-voltage distribution cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112103774A true CN112103774A (en) | 2020-12-18 |
Family
ID=73750517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010770628.5A Pending CN112103774A (en) | 2020-08-04 | 2020-08-04 | Secondary circuit quick connecting device and low-voltage distribution cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112103774A (en) |
-
2020
- 2020-08-04 CN CN202010770628.5A patent/CN112103774A/en active Pending
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