CN204651686U - The special temporary earthing device of portable switch cubicle - Google Patents

Abstract

The special temporary earthing device of a kind of portable switch cubicle, comprise moving contact, connecting rod, earth connection and insulating bar, baffle plate fixed contact is below isolated supporting in described moving contact and switch cubicle, the below of moving contact arranges connecting rod, the below of connecting rod adopts the connection insulating bar that is spirally connected, and the side of connecting rod is bolted earth connection.The utility model convenient and simple for operation easy, invest low, manpower few (1 people 2 minutes can complete), fundamentally should to close completely and cannot problem with grounding by avoiding switching cabinet main bus bar, thus save a large amount of man power and materials.

Description

Temporary grounding device for portable switchgear

technical field

The utility model belongs to the technical field of power transmission and transformation, in particular to a special temporary grounding device for a portable switch cabinet.

Background technique

In the field of power supply technology, the switchgear is a common power supply and distribution equipment in the substation, and the switchgear does not have a special temporary grounding wire. When grounding on the rear busbar side and line side, the existing grounding wire cannot be effectively connected to the current conductor. There are only two methods to use the grounding handcart or open the PT cabinet to manually hang the temporary grounding wire. One method is time-consuming, labor-intensive, high in investment, slow in operation speed, and difficult in operation; the second method requires manual opening of the cabinet, which also has problems such as slow operation speed and increased operation risk factor, and wastes a lot of manpower and material resources. Or affect the reliability of electricity.

Contents of the invention

In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a special temporary grounding device for portable switch cabinets, which is used to solve the problems existing in the prior art.

In order to achieve the above purpose and other related purposes, the utility model provides a special temporary grounding device for a portable switch cabinet, including a moving contact, a connecting rod, a grounding wire and an insulating rod. The static contact is matched with the fixed contact. The connecting rod is set under the moving contact. The connecting rod is made of pure copper. Connect the terminal block, which is connected to the ground clamp.

As mentioned above, the special temporary grounding device for portable switchgear of the utility model has the following beneficial effects:

The special temporary grounding device for portable switchgear is easy to operate, easy to operate, low in investment, and less manpower (one person can complete it in 2 minutes), and should be able to fundamentally avoid the problem that the main busbar of the switchgear is completely closed and cannot be grounded, thereby saving A lot of manpower and material resources.

Description of drawings

Fig. 1 shows the structural representation of the utility model.

Label description:

1 is an insulating rod, 2 is a connecting rod, 3 is a moving contact, 4 is a grounding wire, 5 is a wiring board, and 6 is a grounding wire clamp.

Detailed ways

The implementation of the present utility model is illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

See Figure 1. It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the utility model Therefore, it has no technical substantive meaning. Any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of The technical content disclosed by the utility model must be within the scope covered. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of this specification. The applicable scope of the utility model and the change or adjustment of its relative relationship shall also be regarded as the applicable scope of the utility model if there is no substantial change in the technical content.

As shown in the figure, the utility model provides a special temporary grounding device for a portable switch cabinet, including a moving contact 3, a connecting rod 2, a grounding wire 4 and an insulating rod 1, and the moving contact 3 is separated from the isolation baffle in the switch cabinet. The static contacts at the back are matched and form the structure of female and female sets. The connecting rod 2 is welded under the moving contact 3. The connecting rod 2 is made of pure copper. The bottom of the connecting rod 2 is connected with the insulating rod 1 by screw connection. The side of the grounding wire 4 is connected to the grounding wire 4 through bolts, and the other ends of the three-phase grounding wires 4 of A, B, and C are all connected to the terminal board 5, and the terminal board 5 is connected to the grounding wire clamp 6 through wires, and the grounding wire clamp 6 can be connected with the grounding wire in the substation. connected to ground.

Instructions:

The first step is to open the front door of the switch cabinet;

The second step is to pull out the handcart switch;

Step 3: Put on insulating gloves, and use the supporting pole to prop up the outer valve baffle of the static contact;

The fourth step, use the electric test rod to test the electricity and confirm that there is no electricity;

The fifth step, connect the grounding clamp of the grounding device with the grounding point in the substation;

Step 6: Insert the moving contact of the grounding device into the static contact inside the cabinet to complete the grounding of the busbar or line side of the switch cabinet.

The above-mentioned embodiments only illustrate the principles and effects of the present utility model, but are not intended to limit the present utility model. Anyone familiar with this technology can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the utility model should still be covered by the claims of the utility model.

Claims (3)

1. A special temporary grounding device for a portable switchgear, characterized in that: it comprises a moving contact, a connecting rod, a grounding wire and an insulating rod, the moving contact is matched with the static contact behind the isolation baffle in the switchgear, The bottom of the moving contact is provided with a connecting rod, the bottom of the connecting rod is connected with the insulating rod by screw connection, and the side of the connecting rod is connected with the grounding wire through bolts. 2. The special temporary grounding device for portable switchgear according to claim 1, wherein the connecting rod is made of pure copper. 3. The special temporary grounding device for portable switchgear according to claim 1, characterized in that: the other ends of several grounding wires are connected to a wiring board, and the wiring board is connected to a grounding clamp.