Low-voltage comprehensive distribution box capable of replacing CT module without power cut

Abstract

The utility model discloses a low-voltage comprehensive distribution box capable of replacing a CT module without power cut, comprising a low-voltage comprehensive distribution box, one side of the low-voltage comprehensive distribution box is provided with an open-type CT, the open-type CT is electrically connected with a CT secondary plug, the CT secondary plug is connected with a CT secondary socket, and the CT secondary socket is electrically connected with an electric energy metering, measuring and control terminal; the electric energy metering, measuring and controlling terminal is further electrically connected with a CT short circuit socket, and the CT short circuit socket is detachably connected with a CT short circuit plug. According to the utility model, the open-type CT is adopted by the module for replacing the CT without power cut, the module is installed outside the low-voltage comprehensive distribution box, power cut is not needed when a fault occurs, and in order to prevent people from electric shock caused by high voltage generated by open circuit of the secondary side of the CT when the CT is replaced, a short-circuit plug of the secondary side of the CT is inserted, then the open-type CT is opened, and the secondary plug of the CT is pulled out for replacing without power cut. And after replacement is completed, the CT secondary side short circuit plug is pulled out, and the CT works normally.

Description

Technical Field

[0001] The utility model relates to the technical field of CT replacement of distribution boxes, in particular to a low-voltage integrated distribution box capable of replacing CT modules without power outage. Background Art

[0002] Distribution boxes are widely used in the power distribution process, but in existing distribution boxes, CT modules are prone to problems and need to be replaced.

[0003] The existing low-voltage integrated distribution box CT module adopts a through-core CT, which is installed inside the low-voltage integrated distribution box. When a problem occurs with the CT, a power outage plan needs to be reported. After the power outage, the cable head is disassembled, the cable is pulled out, and then a new CT is replaced. The replacement time is long, electric shock accidents are prone to occur, and complaints from residential users are the result. Utility Model Content

[0004] The main purpose of the utility model is to provide a low-voltage integrated distribution box that can replace CT modules without power outage, aiming to solve the technical problems of the prior art that CT modules take a long time to replace, are prone to electric shock accidents, and are easily complained by residential users.

[0005] To achieve the above-mentioned purpose, the utility model provides a low-voltage integrated distribution box capable of replacing CT modules without power outage, comprising a low-voltage integrated distribution box, wherein electric energy metering, measuring and control terminals are arranged in the low-voltage integrated distribution box, and a CT module capable of replacing without power outage is installed on one side of the low-voltage integrated distribution box, wherein the CT module comprises three groups of open-type CTs, wherein CT secondary windings are arranged inside the open-type CTs, wherein the CT secondary windings are electrically connected to CT secondary plugs, wherein the CT secondary plugs are detachably connected to CT secondary sockets, wherein the CT secondary sockets are electrically connected to electric energy metering, measuring and control terminals; wherein the electric energy metering, measuring and control terminals are also electrically connected to CT short-circuit sockets, wherein the CT short-circuit sockets are detachably connected to CT short-circuit plugs.

[0006] Furthermore, the three groups of open CTs are respectively an A-phase open CT, a B-phase open CT, and a C-phase open CT, and the three groups of open CTs are electrically connected to a CT secondary plug; the open CT includes a high-precision open CT base, a high-precision open CT top seat is installed on the high-precision open CT base, and a cable clamp is provided between the high-precision open CT base and the high-precision open CT top seat.

[0007] Furthermore, the CT secondary winding is arranged in a high-precision open CT base, and the high-precision open CT base and the high-precision open CT top seat are rotatably connected at one end by a rotating shaft and detachably connected at the other end by a screw.

[0008] Furthermore, the CT module also includes a cable fixing seat, and cable fixing clamps are detachably mounted on both ends of the cable fixing seat through bolts, and a cable clamp opening is provided between the cable fixing seat and the cable fixing clamp.

[0009] Furthermore, the CT module also includes a mounting base, the cable fixing base can be detachably mounted on the mounting base, and the mounting base can be detachably mounted on the box.

[0010] Furthermore, the low-voltage integrated distribution box also includes a box body, the electric energy metering, measurement, and control terminals are arranged in the box body, the box body is equipped with a box door through a hinge, the box door is provided with a window and a door lock, the top of the box body is provided with a rainproof roof, and the side wall is provided with a heat dissipation window.

[0011] The beneficial effects of the utility model are embodied in:

[0012] In the utility model, an open-type CT is used for replacing the CT module without power outage in the low-voltage integrated distribution box, and the CT module is installed outside the low-voltage integrated distribution box. When a fault occurs, there is no need to shut down the power because the line is in operation. In order to prevent the high voltage generated by the open circuit of the secondary side of the CT from causing electric shock to personnel when the CT is replaced, it is necessary to insert the CT secondary side short-circuit plug, then open the open-type CT, unplug the CT secondary plug, and replace the module without power outage. After the replacement is completed, the CT secondary side short-circuit plug is unplugged, and the CT works normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the CT module structure of the utility model;

[0015] Figure 3 A circuit diagram of the utility model;

[0016] Figure 4 This is a schematic diagram of the back structure of the CT module of the present utility model.

[0017] Description of reference numerals:

[0018] 10. Low-voltage integrated distribution box, 101. box body, 102. box door, 103. window, 104. door lock, 105. rainproof roof, 106. heat dissipation window;

[0019] 20. CT module, 201. Mounting base, 202. High-precision open CT base, 203. High-precision open CT top seat, 204. Cable fixing seat, 205. Cable fixing clamp, 206. CT secondary socket, 207. CT secondary socket, 208. CT short-circuit plug, 209. CT short-circuit socket. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that satisfy both A and B. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist.

[0023] See also Figures 1 to 4 As shown, the utility model is a low-voltage integrated distribution box capable of replacing CT modules without power outage, comprising a low-voltage integrated distribution box 10, wherein the low-voltage integrated distribution box 10 is provided with electric energy metering, measuring and control terminals, and a CT module 20 capable of replacing without power outage is installed on one side of the low-voltage integrated distribution box 10, wherein the CT module 20 comprises three groups of open-type CTs, wherein CT secondary windings are provided inside the open-type CTs, wherein the CT secondary windings are electrically connected to CT secondary plugs 206, wherein the CT secondary plugs 206 are detachably connected to CT secondary sockets 207, wherein the CT secondary sockets 207 are electrically connected to electric energy metering, measuring and control terminals; wherein the electric energy metering, measuring and control terminals are also electrically connected to CT short-circuit sockets 209, wherein the CT short-circuit sockets 209 are detachably connected to CT short-circuit plugs 208.

[0024] The existing low-voltage integrated distribution box CT module adopts a through-core CT, which is installed inside the low-voltage integrated distribution box. When a problem occurs with the CT, a power outage plan needs to be reported. After the power outage, the cable head is disassembled, the cable is pulled out, and then a new CT is replaced. There are problems such as long replacement time, easy electric shock accidents, and complaints from resident users. In the utility model, the low-voltage integrated distribution box replaces the CT module without power outage and adopts an open-type CT, which is installed outside the low-voltage integrated distribution box. When a fault occurs, there is no need to shut down the power because the line is in operation. In order to prevent the high voltage generated by the open circuit of the secondary side of the CT from causing electric shock to personnel when replacing the CT, it is necessary to insert the CT secondary side short-circuit plug, then open the open-type CT, unplug the CT secondary plug, and replace without power outage. After the replacement is completed, unplug the CT secondary side short-circuit plug, and the CT works normally.

[0025] In some embodiments, see Figure 2 and 3 As shown in Figure 4, the three groups of open CTs are A-phase open CT, B-phase open CT, and C-phase open CT, respectively, and the three groups of open CTs are electrically connected to a CT secondary plug 206; the open CT includes a high-precision open CT base 202, and a high-precision open CT top base 203 is installed on the high-precision open CT base 202, and a cable clamp is provided between the high-precision open CT base 202 and the high-precision open CT top base 203.

[0026] It should be noted that the cable clamp only needs to be able to adapt to and clamp the cable.

[0027] In some embodiments, see Figure 2 As shown, the CT secondary winding is arranged in a high-precision open CT base 202. One end of the high-precision open CT base 202 and the high-precision open CT top seat 203 are rotatably connected by a rotating shaft, and the other end is detachably connected by a screw. In this way, the cable can be removed from the open CT by removing the screw, which is very convenient.

[0028] In some embodiments, see Figure 2 As shown, the CT module 20 also includes a cable fixing seat 204, and cable fixing clamps 205 are detachably mounted at both ends of the cable fixing seat 204 by bolts. A cable clamping opening is provided between the cable fixing seat 204 and the cable fixing clamp 205. The cable fixing seat and the cable fixing clamp are used to clamp the cable. The cable clamping opening can also be adapted to and clamp the cable. The cable fixing seat 204 and the cable fixing clamp 205 are fixed to the mounting base 201 by bolts.

[0029] In some embodiments, see Figure 2As shown, the CT module 20 further includes a mounting base 201 , the cable fixing base 204 can be detachably mounted on the mounting base 201 , and the mounting base 201 can be detachably mounted on the box 101 .

[0030] In some embodiments, see Figure 1 As shown, the low-voltage integrated distribution box 10 also includes a box body 101, and the electric energy metering, measurement, and control terminals are arranged in the box body 101. The box body 101 is equipped with a box door 102 through a hinge. The box door 102 is provided with a window 103 and a door lock 104. The top of the box body 101 is provided with a rainproof roof 105, and the side wall is provided with a heat dissipation window 106.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-voltage integrated distribution box capable of replacing CT modules without power outage, comprising a low-voltage integrated distribution box (10), wherein the low-voltage integrated distribution box (10) is provided with electric energy metering, measurement, and control terminals, characterized in that: A CT module (20) that can be replaced without power outage is installed on one side of the low-voltage integrated distribution box (10). The CT module (20) includes three groups of open-type CTs. A CT secondary winding is arranged inside the open-type CT. The CT secondary winding is electrically connected to a CT secondary plug (206). A CT secondary socket (207) is detachably connected to the CT secondary plug (206). The CT secondary socket (207) is electrically connected to an electric energy metering, measuring, and control terminal. The electric energy metering, measuring, and control terminal is also electrically connected to a CT short-circuit socket (209). A CT short-circuit plug (208) is detachably connected to the CT short-circuit socket (209).

2. A low-voltage integrated distribution box capable of replacing CT modules without power outage as claimed in claim 1, characterized in that: The three groups of open CTs are, in sequence, an A-phase open CT, a B-phase open CT, and a C-phase open CT, and the three groups of open CTs are electrically connected to a CT secondary plug (206); the open CT comprises a high-precision open CT base (202), a high-precision open CT top base (203) is mounted on the high-precision open CT base (202), and a cable clamp is provided between the high-precision open CT base (202) and the high-precision open CT top base (203).

3. A low-voltage integrated distribution box capable of replacing CT modules without power outage as claimed in claim 2, characterized in that: The CT secondary winding is arranged in a high-precision open CT base (202); one end of the high-precision open CT base (202) and the high-precision open CT top base (203) are rotatably connected via a rotating shaft, and the other end is detachably connected via a screw.

4. A low-voltage integrated distribution box capable of replacing CT modules without power outage as claimed in claim 1, characterized in that: The CT module (20) further comprises a cable fixing seat (204), both ends of the cable fixing seat (204) being detachably provided with cable fixing clamps (205) via bolts, and a cable clamp opening being provided between the cable fixing seat (204) and the cable fixing clamp (205).

5. A low-voltage integrated distribution box capable of replacing CT modules without power outage as claimed in claim 4, characterized in that: The CT module (20) further comprises a mounting base (201), the cable fixing base (204) is detachably mounted on the mounting base (201), and the mounting base (201) is detachably mounted on the box body (101).

6. A low-voltage integrated distribution box capable of replacing CT modules without power outage as claimed in claim 1, characterized in that: The low-voltage integrated distribution box (10) further comprises a box body (101), the electric energy metering, measuring and control terminal being arranged in the box body (101), the box body (101) being provided with a box door (102) via a hinge, the box door (102) being provided with a window (103) and a door lock (104), the top of the box body (101) being provided with a rainproof roof (105), and the side wall being provided with a heat dissipation window (106).

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