CN219203018U

CN219203018U - Indoor high-voltage grounding switch integrated moving contact

Info

Publication number: CN219203018U
Application number: CN202223279689.5U
Authority: CN
Inventors: 龙成玉; 黄敏; 张万臣
Original assignee: YUNNAN YUNKAI ELECTRIC CO Ltd
Current assignee: YUNNAN YUNKAI ELECTRIC CO Ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-06-16
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses an indoor high-voltage grounding switch integrated moving contact which mainly comprises an insulator, an outlet plate, a fixed contact mounting plate, a fixed contact, a moving contact mounting plate, a grounding cutter bar, a base, a grounding cutter shaft and an adjusting bolt, wherein the three-phase grounding cutter moving contact is arranged as a whole and is mounted on the A, B, C three-phase grounding cutter bar, and the closing position size of the grounding switch is adjusted through a waist hole on the grounding cutter mounting plate. The utility model is safe and reliable, has high structural strength and is convenient to install and debug.

Description

Indoor high-voltage grounding switch integrated moving contact

Technical Field

The utility model relates to the technical field of power engineering equipment, in particular to an indoor high-voltage grounding switch integrated moving contact.

Background

Grounding switches are one of the most widely used switchgear devices in power distribution systems for personal and equipment safety. At present, the moving contact of the grounding switch is split-phase, namely A, B, C three phases are respectively provided with a grounding switch, the requirement on the synchronism of the three phases of the grounding switch is high, particularly a high-current grounding switch, if the grounding switch is in non-full-phase operation in a short time in the switching-on process, a load can possibly flow backward current to the grounding switch when the three phases are switched on and off in different periods, the instantaneous value of the current is as high as tens of kiloamperes, and the reliable switching-on and switching-off of the grounding switch are greatly influenced by the current repulsive force generated by huge instantaneous current. And when the moving contact and the fixed contact are just contacted, a large electric arc can be generated to cause burning or fusion welding of the contacts, thereby causing equipment loss and personal injury.

Disclosure of Invention

The utility model aims to provide the indoor high-voltage grounding switch integrated moving contact which is safe and reliable, high in structural strength and convenient and flexible to install and debug, aiming at the defects in the prior art. A. B, C three-phase grounding knife moving contact is arranged as a whole, is connected with a grounding knife mounting plate to form a component, is connected with a grounding knife bar through an adjusting bolt, and is used for adjusting the closing position and size of a moving contact of a grounding switch by moving the component up and down, and the adjusting bolt is fastened after adjustment to finish the mounting.

The technical scheme adopted by the utility model is as follows: the indoor high-voltage grounding switch integrated moving contact comprises an insulator, an outgoing line plate, a fixed contact mounting plate, a fixed contact, a moving contact mounting plate, a grounding cutter bar, a base, a grounding cutter shaft and an adjusting bolt, wherein the insulator is mounted on the base, the outgoing line plate is mounted at the top end of the insulator, the fixed contact mounting plate is mounted on the outgoing line plate, and the fixed contact is mounted on the fixed contact mounting plate and fastened;

the grounding cutter shafts sequentially penetrate through the three-phase grounding cutter bars, the grounding cutter bars are aligned with the insulators, the moving contact mounting plates are arranged on two sides of each grounding cutter bar in pairs and fixed through adjusting bolts, and the moving contacts are arranged at the top ends of the three-phase moving contact mounting plates and are connected and fastened into a whole.

Further, the movable contact is a rectangular long plate, three groups of holes are arranged, and each group has 2-4 holes.

Further, the movable contact mounting plate is a bent plate, a waist-shaped hole is formed in the long end of the movable contact mounting plate, and a round hole is formed in the other end of the movable contact mounting plate.

The utility model has the main advantages that: safe and reliable, high in structural strength, and convenient and flexible to install and debug. The moving contact of the three-phase grounding knife is arranged as a whole, so that the strength of the moving contact is improved, meanwhile, the problem of poor three-phase closing sex is avoided, and the equipment and personal safety are greatly improved. When the grounding switch is installed on site, the three-phase switch can be adjusted once without three times, so that the maintenance work of the transformer substation is more efficient.

Drawings

Fig. 1 is a schematic closing diagram of the present utility model.

FIG. 2 is a schematic diagram of the present utility model.

Fig. 3 is a schematic view of the installation of the present utility model.

The marks in the figure are as follows: 1-an insulator 2-an outlet plate 3-a fixed contact mounting plate 4-a fixed contact 5-a moving contact 6-a moving contact mounting plate 7-a grounding cutter bar 8-a base 9-a grounding cutter shaft 10-an adjusting bolt.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2 and 3, the indoor high-voltage grounding switch integrated moving contact of the utility model specifically comprises: the device consists of an insulator 1, an outgoing line plate 2, a fixed contact mounting plate 3, a fixed contact 4, a moving contact 5, a moving contact mounting plate 6, a grounding cutter bar 7, a base 8, a grounding cutter shaft 9 and an adjusting bolt 10. Firstly, an insulator 1 is arranged on a base 8, then an outlet plate 2 is arranged at the top end of the insulator 1, then a fixed contact mounting plate 3 is arranged in a corresponding hole of the outlet plate 2, and then a fixed contact 4 is arranged on the fixed contact mounting plate 3 for fastening. The grounding cutter shafts 9 sequentially penetrate through the three grounding cutter bars 7 and then are fastened by the alignment insulators, the moving contact mounting plates 6 are arranged at corresponding positions on two sides of each grounding cutter bar 7 in pairs, and the adjusting bolts 10 sequentially penetrate into waist holes of the moving contact mounting plates 6 and corresponding holes of the grounding cutter bars 7. And then the moving contact 5 is arranged at the top end of the three-phase moving contact mounting plate 6 for connection and fastening. At this time, the moving contact 5 and the moving contact mounting plate 6 are connected into a component 11, the adjusting bolt 10 is loosened, the component 11 can be moved up and down, and the adjusting bolt 10 is fastened after the opening and closing position size is adjusted, so that the installation is completed.

By adopting the structure, the three-phase grounding knife moving contact is arranged as a whole, so that the structural strength of the three-phase grounding knife moving contact can be improved, the installation and the debugging are convenient and flexible, and the three-phase synchronism deviation is reduced.

The specific embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims

1. The utility model provides an indoor high-voltage earthing switch integral type moving contact, includes insulator (1), outlet plate (2), static contact mounting panel (3), static contact (4), moving contact (5), moving contact mounting panel (6), ground connection cutter arbor (7), base (8), ground connection arbor (9) and adjusting bolt (10), its characterized in that: the insulator (1) is arranged on the base (8), the top end of the insulator (1) is provided with the wire outlet plate (2), the wire outlet plate (2) is provided with the static contact mounting plate (3), and the static contact (4) is arranged on the static contact mounting plate (3) for fastening;

the grounding cutter shafts (9) sequentially penetrate through three-phase grounding cutter bars (7), the grounding cutter bars (7) are aligned with the insulators (1), the moving contact mounting plates (6) are arranged on two sides of each grounding cutter bar (7) in pairs and are fixed through adjusting bolts (10), and the moving contacts (5) are arranged at the top ends of the three-phase moving contact mounting plates (6) and are connected and fastened into a whole.

2. The indoor high-voltage grounding switch integrated movable contact according to claim 1, wherein: the movable contact (5) is a rectangular long plate, three groups of holes are arranged, and each group has 2-4 holes.

3. The indoor high voltage grounding switch integrated movable contact according to claim 1 or 2, characterized in that: the movable contact mounting plate (6) is a bent plate, a waist-shaped hole is formed in the long end of the movable contact mounting plate, and a round hole is formed in the other end of the movable contact mounting plate.