CN210442495U

CN210442495U - Closed electrical equipment internal short circuit detection stick

Info

Publication number: CN210442495U
Application number: CN201921151319.9U
Authority: CN
Inventors: 王拯; 李志新; 刘勇; 徐永强; 王云涛; 郑金波; 杜强; 韩志刚; 尹永亮; 王晓飞
Original assignee: State Grid Corp of China SGCC; Hon Hai Precision Industry Co Ltd
Current assignee: State Grid Corp of China SGCC; Hon Hai Precision Industry Co Ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-05-01
Anticipated expiration: 2029-07-22

Abstract

The utility model relates to an electrical equipment detection area, concretely relates to inside short circuit of closed electrical equipment detects stick. During detection, the detection circuit switch and the lighting circuit switch are turned on, then the detection rod is placed into the electrical equipment, the two detection needles are in contact with an internal circuit, and if a short circuit exists between the interiors of the electrical equipment, the two detection needles are communicated, so that the buzzer gives an alarm.

Description

Closed electrical equipment internal short circuit detection stick

Technical Field

The utility model relates to an electrical equipment detection area, concretely relates to inside short circuit of closed electrical equipment detects stick.

Background

The electrical equipment in the transformer substation is easily corroded due to long-time contact with an external environment, so that the performance degradation and the insulation performance are poor, and even the aging and short circuit of internal components occur. For electrical equipment which is not easy to detach, such as a power transformer and the like, the aging condition of internal elements of the electrical equipment cannot be detected, and the short circuit condition of an internal circuit cannot be detected by using a universal meter, so that an instrument for detecting the aging short circuit condition in the electrical equipment is required to be developed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to provide an inside short circuit of closed electrical equipment detects stick for detect the short circuit condition of electrical equipment internals, and then ensure the operation of electrical equipment safety and stability.

The utility model discloses a realize through following technical scheme:

a short circuit detection bar in a closed electrical device comprises a telescopic rod, a detection circuit and an illumination circuit, wherein the detection circuit is connected with a power supply, a buzzer and two conductive detection needles in series, and the two detection needles enable the detection circuit to be in an open circuit state; the lighting circuit is connected with a lighting lamp in series,

two detection needles and a lighting lamp are arranged at the top end of the telescopic rod.

Furthermore, a detection switch and a current-limiting resistor are also connected in series in the detection circuit, and an illumination switch is also connected in series in the illumination circuit; the detection switch, the lighting switch and the buzzer are located at the lower section of the telescopic rod.

Furthermore, the circuit of detection circuitry and lighting circuit is located inside the telescopic link, the safety cover is installed on the top of telescopic link.

Compared with the prior art, the utility model the beneficial effect who gains as follows:

1. during detection, the detection circuit switch and the lighting circuit switch are turned on, then the detection rod is placed in the electrical equipment, so that the two detection needles are in contact with an internal circuit, and if a short circuit exists between the interiors of the electrical equipment, the two detection needles are in a path, so that the buzzer gives an alarm;

2. the utility model has the advantages of simple structure and convenient operation.

Drawings

FIG. 1 is a schematic view of the structure of the short circuit detection bar inside the enclosed electrical equipment of the present invention;

fig. 2 is a schematic diagram of the detection circuit and the illumination circuit of the present invention;

1. the device comprises a telescopic rod, 2, a power supply, 3, a buzzer, 4, a detection needle, 5, a lighting lamp, 6, a detection switch, 7, a current-limiting resistor, 8, a lighting switch, 9 and a protective cover.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. The described embodiments are only some embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 and 2, the internal short circuit detection bar of the enclosed electrical equipment mainly comprises an expansion link 1, a detection circuit and an illumination circuit, wherein the detection circuit is connected in series with a power supply 2, a buzzer 3, two conductive detection pins 4, a detection switch 6 and a current limiting resistor 7, and the two detection pins 4 enable the detection circuit to be in an open circuit state. And the lighting circuit is connected with a lighting switch 8 and a lighting lamp 5 in series.

The circuit of detection circuitry and lighting circuit is located telescopic link 1 inside, and two detection needle 4 and light 5 are installed the top of telescopic link 1. The top of telescopic link 1 is installed the safety cover 9, prevents that the side from colliding the object and leading to the light and detect the needle impaired. A battery box is arranged in the middle of the telescopic rod, and a 12V power supply is placed in the battery box. The buzzer is arranged below the power supply, and the detection switch 6 and the lighting switch 8 are arranged below the telescopic rod. In this embodiment, the detection circuit and the illumination circuit can use the same power supply.

The inside short circuit of closed electrical equipment detects stick concrete working process as follows:

during detection, the detection circuit switch and the lighting circuit switch are turned on, then the detection rod is placed into the electrical equipment, the two detection needles are made to contact with an internal circuit, and if a short circuit exists between the interiors of the electrical equipment, the two detection needles are communicated, so that the buzzer gives an alarm, and the aging short circuit problem of the detection circuit is determined.

Claims

1. The internal short circuit detection rod of the closed electrical equipment is characterized by comprising a telescopic rod (1), a detection circuit and an illumination circuit, wherein the detection circuit is connected with a power supply (2), a buzzer (3) and two conductive detection needles (4) in series, and the two detection needles (4) enable the detection circuit to be in an open circuit state; the lighting circuit is connected with a lighting lamp (5) in series,

two detection needles (4) and a lighting lamp (5) are arranged at the top end of the telescopic rod (1).

2. The internal short circuit detection bar of the enclosed electrical equipment according to claim 1, characterized in that a detection switch (6) and a current limiting resistor (7) are further connected in series in the detection circuit, and a lighting switch (8) is further connected in series in the lighting circuit; the detection switch (6), the lighting switch (8) and the buzzer (3) are positioned at the lower section of the telescopic rod (1).

3. The internal short circuit detection bar of a closed electrical equipment according to claim 1, characterized in that the lines of the detection circuit and the illumination circuit are located inside a telescopic rod (1), and a protective cover (9) is installed on the top end of the telescopic rod (1).