CN215986280U

CN215986280U - Circuit overload experimental device and system

Info

Publication number: CN215986280U
Application number: CN202121345581.4U
Authority: CN
Inventors: 宁杰; 何岗; 李智群; 张锐
Original assignee: Shaanxi Sinoke Industry And Trade Co ltd
Current assignee: Shaanxi Sinoke Industry And Trade Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2022-03-08
Anticipated expiration: 2031-06-16

Abstract

The utility model relates to the technical field of electric appliances, and provides a line overload experimental device and a line overload experimental system. According to the line overload experimental device provided by the embodiment of the utility model, the introduction of external current is controlled through the power switch, the current is converted through the current transformer, the line to be tested is accessed through the wire connector, and the overload condition of the line to be tested is observed when a load is electrified. The circuit overload experimental device of the embodiment is simple in design and convenient to test and operate.

Description

Circuit overload experimental device and system

Technical Field

The utility model relates to the technical field of electric appliances, in particular to a line overload experimental device and system.

Background

When the load in the circuit increases, the overload condition can appear in the circuit, and circuit overload wire can generate heat or blow, causes the safety risk, needs the load condition experiment to the circuit before the circuit load.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a line overload experimental device and system. The specific technical scheme is as follows:

the embodiment of the utility model provides a line overload experimental device which comprises a power switch, wherein the power switch is provided with an output end and a backflow end, a current transformer, a first load and a wire connector are sequentially connected in series between the output end and the backflow end, and the wire connector is used for being connected into a lead to be tested.

Further, the first load is connected in parallel with at least one second load.

Further, a fuse box is connected between the current transformer and the output end.

Further, the first load and the second load comprise a load switch and a loader in series.

Furthermore, a leakage protection switch is connected between the current transformer and the fuse box.

Further, still include the casing, switch, current transformer, wiring end, first load, second load, earth leakage protection switch, fuse box are installed in the casing.

The embodiment of the utility model provides a line overload test system, which comprises the line overload test device and a line to be tested, wherein the wire connector is provided with two wiring terminals, and the line to be tested is connected between the wiring terminals.

According to the line overload experimental device provided by the embodiment of the utility model, the introduction of external current is controlled through the power switch, the current is converted through the current transformer, the line to be tested is accessed through the wire connector, and the overload condition of the line to be tested is observed when a load is electrified. The circuit overload experimental device of the embodiment is simple in design and convenient to test and operate.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is a schematic circuit diagram of a line overload test apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a line overload experimental apparatus according to an embodiment of the present invention.

Wherein, 1, a power switch; 2. a current transformer; 3. a first load; 31. a load switch; 32. a load device; 4. a wire connector; 5. a wire to be tested; 6. a second load; 7. a fuse box; 8. a leakage protection switch; 9. a socket; 10. a plug; 11. a current display meter; 12 adjusting a knob; 20. a video player; 30. a housing.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings.

As shown in fig. 1, the line overload experiment apparatus according to the embodiment of the present invention includes a power switch 1, where the power switch 1 has an output end and a return end, a current transformer 2, a first load 3, and a wire connector 4 are sequentially connected in series between the output end and the return end, and the wire connector 4 is used for connecting a wire 5 to be tested.

Wherein the first load 3 is connected in parallel with at least one second load 6.

Wherein, a fuse box 7 is connected between the current transformer 2 and the output end 12.

Wherein the first load 3 and the second load 6 comprise a load switch 31 and a load 32 connected in series.

And an earth leakage protection switch 9 is connected between the current transformer 2 and the fuse box 7.

The current transformer is connected with a current display meter and used for displaying the current of the current transformer.

The power supply device further comprises a shell 10, and a power switch, a current transformer, an ammeter, a terminal, a first load, a second load, a leakage protection switch and a fuse box are mounted on the shell.

The circuit overload test system provided by the embodiment of the utility model comprises the circuit overload test device provided by the embodiment of the utility model and also comprises a circuit to be tested, wherein the wire connector is provided with two wiring terminals, and the circuit to be tested is connected between the wiring terminals.

The power switch is connected with a socket in parallel, the shell is provided with a video player, and the video player is electrically connected with the socket.

The video player is used for playing the operation method of the line overload experiment device of the embodiment.

Wherein, the power switch is connected with a plug in series.

Wherein, the plug is three-core plug, the socket is two-core socket, and the loader is the hairdryer.

The line overload experimental device of the embodiment is used as follows:

the line to be tested is connected between the two wiring ends of the wire connector, the power switch and the load switch are started, the loader and the line to be tested are electrified, the load of the line is gradually increased by sequentially connecting the parallel loaders, and the overload condition of the line to be tested is sequentially observed.

As shown in fig. 2, the housing of the present embodiment includes a control vertical surface and a control plane, the control vertical surface is provided with a current display meter and a video player, and the control plane is provided with a load device, a load switch and a current transformer adjusting knob.

It should be understood that the mounting between the structures in the embodiments of the present invention may refer to welding, bolting, screwing, scarfing, and bonding; the connection between the pipes may be referred to as communication; the connection between the appliances may refer to an electrical connection. The utility model is not limited to the precise arrangements described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims

1. The utility model provides a circuit overload experimental apparatus which characterized in that, includes switch, switch has output and backward flow end, it has current transformer, first load, connector to establish ties in proper order between output and the backward flow end, the connector is used for inserting the wire that awaits measuring.

2. The line overload experimental apparatus according to claim 1, wherein the first load is connected in parallel with at least one second load.

3. The line overload experimental apparatus according to claim 2, wherein a fuse box is connected between the current transformer and the output end.

4. The line overload experiment apparatus of claim 3, wherein the first load and the second load comprise a load switch and a load device connected in series.

5. The line overload test device according to claim 4, wherein a leakage protection switch is connected between the current transformer and the fuse box.

6. The line overload experiment device according to claim 5, further comprising a housing, wherein the power switch, the current transformer, the terminal, the first load, the second load, the earth leakage protection switch and the fuse box are mounted on the housing.

7. A line overload test system comprising the line overload test apparatus according to any one of claims 1 to 6, wherein the apparatus further comprises a line to be tested, the connector has two terminals, and the line to be tested is connected between the terminals.