CN217590132U - Quick plug-in type 0.4KV distribution box - Google Patents

Abstract

A fast plug-in type 0.4KV tapping box comprises a tapping box body; the bottom wall of the tapping box body is fixedly provided with an incoming line end cable pulling socket and more than two outgoing line end cable pulling sockets; a main connecting copper bar and a plurality of switches are arranged in the tapping box body; one end of the main connecting copper bar is connected with the cable plugging seat at the wire inlet end; the switches are in one-to-one correspondence with the cable pull-out sockets at the wire outlet ends, and the switches are connected in series between the main connecting copper bar and the corresponding cable pull-out sockets at the wire outlet ends side by side. The circuit of each outgoing line side of the distribution box can be independently turned off, and the power supply of the distribution transformer does not need to be stopped when any user terminal fails or loads quit, newly increase and change, so that the normal power consumption of other users is not influenced.

Description

Quick plug-in type 0.4KV distribution box

Technical Field

The utility model belongs to the technical field of power transmission and distribution, concretely relates to quick plug-in type 0.4KV distribution box.

Background

0.4KV (i.e. 400V) is the voltage of the transformer when it is unloaded, and the actual output voltage on the secondary side is reduced by the load factor and power factor when the transformer is loaded. The national standard provides a margin of 5%. Therefore, the secondary side no-load voltage of the transformer with 380V commercial power is 0.4KV (400V).

The probability of power failure of a 0.4kV line which is mainly used for supplying power to residential users is quite high, for example, when the conditions such as newly increased business, meter displacement, replacement of service lines and the like exist, a power supply of a distribution transformer needs to be stopped, an operator can manufacture a proper cable terminal according to the conditions of the site, however, a distribution box is hung on a wall surface or an electric pole, the manufactured cable terminal is influenced by environmental factors and is inconvenient to manufacture, frequent power failure frequently occurs in normal construction of a whole station area due to power supply frequently, and the customer is not full of emotion.

Therefore, it is desirable to provide a 0.4kV distribution box that solves the above problems.

Technical scheme

An object of the utility model is to solve above-mentioned prior art not enough to a quick plug-in type 0.4KV tapping box is provided, the circuit of each outgoing line side of tapping box can be turn-offed alone, and the end of registering one's residence appears breaking down or the circuit of load withdraws from, newly-increased and change over and need not to stop distribution transformer's power supply, does not influence other users ' normal power consumption.

A fast plug-in type 0.4KV tapping box comprises a tapping box body;

the bottom wall of the tapping box body is fixedly provided with an incoming line end cable pulling socket and more than two outgoing line end cable pulling sockets;

a main connecting copper bar and a plurality of switches are arranged in the tapping box body;

one end of the main connecting copper bar is connected with the cable plugging seat at the wire inlet end;

the switches are in one-to-one correspondence with the cable pull-out sockets at the wire outlet ends, and the switches are connected in series between the main connecting copper bar and the corresponding cable pull-out sockets at the wire outlet ends side by side.

And the cable pulling socket at the wire inlet end is connected to a busbar of the comprehensive power distribution cabinet of the distribution transformer through a cable pulling plug at the wire inlet end.

The outlet end cable pulling socket is connected with one end of an input line of the corresponding service line or the next-stage tapping box through an outlet end cable pulling plug.

The main connecting copper bar comprises four copper bars, wherein the three copper bars are fire wires, and the other copper bar is a zero wire.

The number of the switches is five, the input end of each switch is correspondingly connected to four copper bars of the main connecting copper bar through four branch copper bars, and the output end of each switch is connected with a corresponding cable plug base of the leading-out terminal through a connecting bus.

Two of the five switches are over-under voltage protection switches, the other two switches are power protection switches, and the last switch is an isolation breaking switch.

The tapping box body is a sealed box body enclosed by a front side wall, a rear side wall, a left side wall, a rear side wall, an upper side wall and a bottom wall.

And the front side surface of the tapping box body is provided with a yielding hole corresponding to each switch operation button.

And two mounting holes are respectively formed in the two sides of the upper end of the rear side wall of the tapping box body.

Compared with the prior art the utility model discloses each way of tapping box goes out the line side and sets up and close fast alone and adopt the cable to pull out socket and cable plug and realize quick plug, and the circuit of each way outgoing line side can be turn-off alone, and the end of registering one's residence appears the trouble wantonly, and the circuit of other branched outgoing line sides of this tapping box is not influenced completely, realizes that the fixed point is turn-off the maintenance, does not influence other users' normal power consumption.

The utility model discloses when the load of registering one's residence will withdraw from, only need with the switch turn-offs of the branch incasement that the load of registering one's residence that will withdraw from corresponds to pull out the cable on this port and pull out the plug and can realize withdrawing from fast, do not influence the normal use of other circuits completely.

The utility model discloses when needs increase or change into the house load, also need with will newly-increased or change into the switch turn-offs of the branch incasement that the house load that connects corresponds, then will newly-increased or change into the cable of the house load cable end of connecting and pull out the plug and insert the cable that the branch case corresponds and pull out the socket after, open the switch on this circuit again, accomplish the newly-increased or change into the house load promptly, and convenient and fast, whole work progress need not to stop distribution transformer's power supply, does not influence other users' normal power consumption.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the figure: 1. the cable protection switch comprises a tapping box body, 2, a main connecting copper bar, 3, an incoming line end cable pulling socket, 4, an incoming line end cable pulling plug, 5, 630A isolation disconnecting switch, 6, 100A over under voltage protection switches, 7, 200A over under voltage protection switches, 8, 200A power protection switches, 9, 400A power protection switches, 10, a connecting bus, 11, a mounting hole, 12, a leading-out end cable pulling socket, 13 and a leading-out end cable pulling plug.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely 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, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In fig. 1, a decomposition box 1 is a sealed box enclosed by a front side wall, a rear side wall, a left side wall, a rear side wall, an upper side wall and a bottom wall, a incoming end cable plug socket 3 and five outgoing end cable plug sockets 12 are arranged side by side on a lower side wall of the decomposition box 1, a main connecting copper bar 2 is arranged inside the decomposition box 1, the main connecting copper bar 2 comprises three live wires and a zero line, and four copper bars in total, one end of each of the four copper bars of the main connecting copper bar 2 is connected to the incoming end cable plug socket 3, the incoming end cable plug socket 3 can be matched with the incoming end cable plug 4, the incoming end cable plug 4 is connected to one end of an incoming cable, the other end of the incoming cable is connected to a bus bar of a distribution transformer, a 100A over-under voltage protection switch 6, a 200A over-under voltage protection switch 7, a 200A power protection switch 8, a 400A power protection switch 9 and a 630A isolation switch 5 are also arranged side by side inside the decomposition box 1, the 100A over-under voltage protection switch 6, a over-under voltage protection switch 7, a 200A power switch 8, a 400A power switch 9, a power switch 9 and a power switch 5 are connected to a corresponding connection protection switch 12 through a branch plug of a branch socket plug socket 12, and a corresponding to a branch protection switch 5, and a branch protection switch 5, the corresponding to a branch plug connection terminal of the incoming end of the main connecting the two under-line.

Furthermore, the front side surface of the tapping box body 1 is provided with a yielding hole corresponding to each switch operation button. Two sides of the upper end of the rear side wall of the tapping box body 1 are respectively provided with a mounting hole 11.

The utility model aims at improving the quick processing of 0.4KV power cable load reconnection, quitting, newly-increased tapping load and fault, improving the quick recovery of load reconnection and new load access.

When the device is used, if the device exits the service load, the outlet-end cable plug 13 on the line corresponding to the service load is directly unplugged, so that the outlet-end cable plug 13 is disconnected with the corresponding outlet-end cable plug 12, the rapid exit work is completed, the matched plug and socket connection line is adopted, the plugging and unplugging are convenient, the power supply of the comprehensive power distribution cabinet of the distribution transformer does not need to be stopped in the whole process, and the normal use of other users cannot be influenced;

if a new load is connected, selecting a corresponding switch from five switches according to the newly-increased load capacity, turning off the switch, pulling out a cable plug 13 at a wire outlet end corresponding to the switch, connecting a newly-laid cable head to the cable plug 13 at the wire outlet end, and after the connection is finished, connecting the cable plug 13 at the wire outlet end to a cable plug socket 12 at the corresponding wire outlet end to finish the connection of the newly-increased load;

if one of the service terminals has a fault, the plug 13 is pulled out only by pulling out the cable at the outlet terminal corresponding to the service line and the connecting section of the tapping box body, so that the fault service line can be maintained without influencing the normal power consumption of other users.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (8)

1. A quick plug-in type 0.4KV tapping box is characterized in that: comprises a tapping box body (1);

the bottom wall of the tapping box body (1) is fixedly provided with an incoming line end cable pulling socket (3) and more than two outgoing line end cable pulling sockets (12);

a main connecting copper bar (2) and a plurality of switches are arranged in the tapping box body (1);

one end of the main connecting copper bar (2) is connected with the cable pulling socket (3) at the wire inlet end;

the switches are in one-to-one correspondence with the cable pull-out sockets (12) at the wire outlet ends, and the switches are connected in series between the main connecting copper bar (2) and the corresponding cable pull-out sockets (12) at the wire outlet ends side by side.

2. The quick plug-in type 0.4KV tapping box according to claim 1, characterized in that: the incoming line end cable pulling socket (3) is connected to a busbar of the comprehensive power distribution cabinet of the distribution transformer through an incoming line end cable pulling plug (4).

3. The quick plug-in type 0.4KV tapping box according to claim 1 or 2, characterized in that: the outlet end cable pulling socket (12) is connected with one end of an input line of a corresponding service line or a next-stage tapping box through an outlet end cable pulling plug (13).

4. The quick plug-in type 0.4KV tapping box of claim 1, characterized in that: the main connecting copper bar (2) comprises four copper bars, wherein three copper bars are live wires, and the other copper bar is a zero line.

5. The quick plug-in type 0.4KV tapping box of claim 1, characterized in that: the number of the switches is five, the input end of each switch is correspondingly connected to four copper bars of the main connecting copper bar (2) through four branch copper bars, and the output end of each switch is connected with a corresponding cable outlet pull socket (12) through a connecting bus (10).

6. The quick plug-in type 0.4KV tapping box according to claim 5, characterized in that: two of the five switches are over-under voltage protection switches, the other two switches are power protection switches, and the last switch is an isolation breaking switch (5).

7. The quick plug-in type 0.4KV tapping box according to claim 1, characterized in that: the front side surface of the tapping box body (1) is provided with a yielding hole corresponding to each switch operation button.

8. The quick plug-in type 0.4KV tapping box according to claim 7, characterized in that: two sides of the upper end of the rear side wall of the tapping box body (1) are respectively provided with a mounting hole (11).

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