CN220190139U - Busbar structure of longitudinally-rotating sealed insulating switch cabinet - Google Patents

Abstract

The utility model discloses a busbar structure of a longitudinally-rotating sealed insulated switch cabinet, which comprises a sealed box, a three-phase busbar assembly, three insulators and a bracket, wherein the three insulators and the bracket are arranged in the sealed box; each phase of bus assembly comprises a reversing connecting plate, a fixed contact, a composite contact seat and an outgoing line connector which are sequentially installed and connected, wherein the support and the outgoing line connector are installed in a sealing box; the reversing connecting plate consists of a contact connecting part for connecting the composite contact seat and an insulating connecting part for connecting the other end of the insulator; the wire outlet connector is connected with the bottom of the composite contact seat; the static contact is arranged at the top of the composite contact seat.

Description

Busbar structure of longitudinally-rotating sealed insulating switch cabinet

Technical Field

The utility model relates to the technical field of switch cabinets, in particular to a bus structure of a longitudinally-rotating sealed insulating switch cabinet.

Background

SF6 gas insulated switchgear is a traditional cabinet for a large number of applications in power distribution network systems. In general, a gas-insulated switchgear sealed at normal pressure is reformed from an inflatable switchgear, and since the distance between the phase and the pair of high-voltage elements in the switchgear is small, a large amount of insulating materials are required to be used to strengthen the insulating performance in order to maintain the insulating strength in an air medium. At present, in a manner of reducing the volume of a driving element by connecting three phases through insulating materials, the risk of interphase insulation failure short circuit exists in practical application.

The vertical rotation switch equipment is more suitable for power engineering of distribution network with the advantage of simple structure and electronic upper and lower double isolation visual fracture, but because its structure is different from conventional circuit breaker, lead to in current vertical rotation switch equipment, separate connection moving and static contact and cable busbar distribute need adopt special technical means to realize the installation for the installation is inconvenient. Accordingly, there is a need for a new busbar construction in a sealed switchgear cabinet for existing vertical rotary switching devices that addresses the above-described problems.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a bus structure of a longitudinally-rotating sealed insulating switch cabinet.

In order to achieve the above purpose, the utility model provides a busbar structure of a longitudinally-rotating sealed insulated switchgear, which comprises a sealed box, a three-phase busbar assembly, three insulators and a bracket, wherein the three insulators and the bracket are arranged in the sealed box, the bracket is fixedly connected with the sealed box, and one end of each insulator is connected with the bracket; each phase of bus assembly comprises a reversing connecting plate, a fixed contact, a composite contact seat and an outgoing line connector which are sequentially installed and connected, wherein the support and the outgoing line connector are installed in a sealing box; the reversing connecting plate consists of a contact connecting part for connecting the composite contact seat and an insulating connecting part for connecting the other end of the insulator; the wire outlet connector is connected with the bottom of the composite contact seat; the static contact is arranged at the top of the composite contact seat.

Further, each phase of the bus assembly further comprises an electric connecting rod, wherein the composite contact base is connected with the outgoing line connector through the electric connecting rod.

Further, the composite contact base is also provided with a grounding contact part in advance.

Further, the insulating connecting portion and the contact connecting portion are perpendicular to each other.

Further, the contact connecting portion is fixedly connected to the composite contact base through at least two pins.

Further, the insulating connecting part and the bracket are respectively connected with two ends of the insulator through bolts.

Further, the length of the insulator extends in a lateral direction.

Further, the length of the stent extends longitudinally.

Further, the distance between the outlet connectors of the three-phase bus bar assembly is greater than 125m, and the distance between the outlet connectors and the cabinet wall of the sealed box is greater than 125m.

Further, the three fixed contacts are longitudinally arranged; the three outlet connectors are arranged transversely.

The beneficial effects of the utility model are as follows: through the three functions of static contact installation, electric connection output and grounding switch contact are compositely overlapped on the composite contact seat, the structure is simplified, the installation is convenient, meanwhile, the copper material consumption is saved, and the energy consumption is reduced.

The distance between the outlet connectors of the three-phase bus assembly is larger than 125m, the distance between the outlet connectors and the cabinet wall of the sealing box is larger than 125m, and the three static contacts and the three outlet connectors are arranged in a staggered mode, so that insulation is increased, additional insulation treatment such as composite insulation, solid insulation, vulcanization and the like is avoided, and insulation damage risks are avoided.

Through the structure, the fixed contact and the wire outlet connector are connected and reinforced without insulating materials, the risk of interphase insulation failure short circuit is avoided, and the use safety of the switch equipment is improved on the premise of ensuring compact structure.

Drawings

Fig. 1 is a schematic view of a bus bar structure.

Fig. 2 is a front view of a bus bar structure.

Fig. 3 is a side view of a busbar construction.

Fig. 4 is a schematic view of a composite contact block.

The high-voltage power supply comprises a 1-sealing box, a 2-support, a 3-insulator, a 4-static contact, a 41-second fixing hole, a 5-composite contact seat, a 51-first fixing hole, a 52-grounding contact part, a 6-electric connecting rod, a 7-wire outlet connector, an 8-reversing connecting plate, a 81-contact connecting part and an 82-insulating connecting part.

Description of the embodiments

In order that the utility model may be understood more fully, the utility model will be described with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1 to 4, in the present embodiment, a busbar structure of a longitudinally-sealed insulated switchgear includes a sealed box 1, three insulators 3, a bracket 2, and a three-phase busbar assembly, wherein the three insulators 3 and the bracket 2 are disposed inside the sealed box 1. Each phase of bus assembly comprises a reversing connecting plate 8, a fixed contact 4, a composite contact seat 5, an electric connecting rod 6 and an outgoing line connector 7 which are sequentially installed and connected. The isolating knife switch contacts with the fixed contact 4 during closing, and at the moment, current is led to the outgoing line contact through the fixed contact 4, the composite contact seat 5 and the current connecting rod to be output electrically.

In the present embodiment, in each phase busbar assembly, the stationary contact 4 is arranged on top of the composite contact block 5. The two end surfaces of the top of the composite contact seat 5 are both provided with first fixing holes 51. The length of the fixed contact 4 extends transversely, and the two end faces of the fixed contact 4 are provided with second fixing holes 41 in advance, wherein each first fixing hole 51 is connected with each second fixing hole 41 through bolt matching. The electric connecting rod 6 is arranged at the bottom of the composite contact seat 5, and the top end of the electric connecting rod 6 is fixedly connected to the composite contact seat 5 through a pin. The outlet connectors 7 of the three-phase bus bar assembly are mounted to the sealed box 1, and each outlet connector 7 is connected to an electrical connection rod 6.

In the present embodiment, the reversing connection plate 8 is arranged on one longitudinal side of the composite contact block 5. The reversing connection plate 8 is composed of a contact connection part 81 for connecting the composite contact seat 5 and an insulating connection part 82 for connecting one end of the insulator 3, wherein the insulating connection part 82 and the contact connection part 81 are mutually perpendicular, and the contact connection part 81 is fixedly connected to the composite contact seat 5 through two pins. The length of each insulator 3 extends in the lateral direction. The commutation connection plates 8 of the three-phase bus assembly are respectively connected with the three insulators 3 in a matching way, and each insulating connection part 82 is fixedly connected with one end of the insulator 3 through bolts. By using the reversing connection plates 8, the insulators 3 are arranged in the lateral direction.

In the present embodiment, both ends of the bracket 2 are fixedly connected to both sides of the seal box 1 by bolts. The length of the bracket 2 extends in the longitudinal direction, and three insulators 3 are arranged on the bracket 2, wherein the other end of each insulator 3 is fixedly connected to the bracket 2 by a bolt. By arranging the insulators 3 transversely, the space occupation of the insulators 3 to the longitudinal position is saved, and the upper and lower structures of all parts in the sealing box 1 are more compact. In addition, through the effect of insulator 3 and support 2 for compound contact seat 5 and seal box 1 fixed connection, guarantee that compound contact seat 5 is greater than 125m with the interval of seal box 1 inner wall in order to realize the insulation, simultaneously, guarantee bus structure's stability.

In the present embodiment, the composite contact base 5 is also preset to the ground contact portion 52 to which the ground switch is connected, wherein the ground switch is connected to the ground contact portion 52 at the time of closing. According to the embodiment, through the structure, three functions of the fixed contact 4, the electric connection output and the grounding switch contact are compositely overlapped on the composite contact seat 5, so that the structure is simplified, the installation of a bus structure is facilitated, the copper material consumption is saved, and the energy consumption is reduced. Before the bus structure is installed, the electric connecting rod 6 and the outlet connector 7 are connected in a pre-installation mode, and then the outlet connector 7 and the bracket 2 are respectively installed in the sealing box 1. When the bus structure is installed, the fixed contact 4 and the reversing connecting plate 8 are respectively installed on the composite contact seat 5, the composite contact seat 5 is connected with the electric connecting rod 6, the insulator 3 is connected with the composite contact seat 5, and finally the insulator 3 is installed on the bracket 2, so that the installation of the bus structure is completed.

In the present embodiment, the distance between the outlet connectors 7 of the three-phase bus bar assembly is greater than 125m, and the distance between the outlet connectors 7 and the cabinet wall of the sealed box 1 is greater than 125m, and insulation is achieved by increasing the pitch. In addition, in the three-phase bus assembly, three fixed contacts 4 are longitudinally arranged, and three outgoing connectors 7 are transversely arranged, so that the three fixed contacts 4 and the three outgoing connectors 7 are arranged in a staggered manner, and insulation is realized. According to the embodiment, insulation is realized through dislocation and increased space, so that an insulation medium between charged conductors is air, additional insulation treatment such as composite insulation, solid insulation and vulcanization is avoided, risks of interphase insulation failure short circuit are avoided, the use safety of the switch equipment is improved on the premise of ensuring compact structure, and the environmental pollution risk of insulating material application is avoided.

In this embodiment, through the above-mentioned structure for there is not insulating material connection and strengthening each other between static contact 4 and outlet connection 7, does not have the risk of alternate insulation inefficacy short circuit, realizes improving switchgear's safety in utilization under the compact structure's the prerequisite of guaranteeing.

The above-described embodiments are merely preferred embodiments of the present utility model, and are not intended to limit the present utility model in any way. Any person skilled in the art, using the disclosure above, may make many more possible variations and modifications of the technical solution of the present utility model, or make many more modifications of the equivalent embodiments of the present utility model without departing from the scope of the technical solution of the present utility model. Therefore, all equivalent changes made according to the inventive concept are covered by the protection scope of the utility model without departing from the technical scheme of the utility model.

Claims (10)

1. The utility model provides a indulge bus structure of rotatory sealed insulation switch cabinet, includes seal box (1) and three-phase bus assembly, its characterized in that: the device is characterized by further comprising three insulators (3) and a bracket (2) which are arranged in the sealed box (1), wherein the bracket (2) is fixedly connected to the sealed box (1), and one end of each insulator (3) is connected to the bracket (2); each phase of bus assembly comprises a reversing connecting plate (8), and a fixed contact (4), a composite contact seat (5) and an outgoing line connector (7) which are sequentially installed and connected, wherein the bracket (2) and the outgoing line connector (7) are both installed in the sealing box (1); the reversing connecting plate (8) consists of a contact connecting part (81) for connecting the composite contact seat (5) and an insulating connecting part (82) for connecting the other end of the insulator (3); the wire outlet connector (7) is connected with the bottom of the composite contact seat (5); the static contact (4) is arranged at the top of the composite contact seat (5).

2. The busbar structure of a longitudinally sealed insulated switchgear of claim 1, wherein: each phase of bus assembly further comprises an electric connecting rod (6), wherein the composite contact base (5) is connected with the outgoing line connector (7) through the electric connecting rod (6).

3. The busbar structure of a longitudinally sealed insulated switchgear of claim 1, wherein: the composite contact seat (5) is also provided with a grounding contact part (52).

4. The busbar structure of a longitudinally sealed insulated switchgear of claim 1, wherein: the insulating connecting part (82) is perpendicular to the contact connecting part (81).

5. The busbar structure of a longitudinally sealed insulated switchgear of claim 1, wherein: the contact connecting part (81) is fixedly connected to the composite contact seat (5) through at least two pins.

6. The busbar structure of a longitudinally sealed insulated switchgear of claim 1, wherein: the insulating connecting part (82) and the bracket (2) are respectively connected with two ends of the insulator (3) through bolts.

7. The busbar structure of a longitudinally sealed insulated switchgear of claim 1, wherein: the length of the insulator (3) extends in the transverse direction.

8. The busbar structure of a longitudinally sealed insulated switchgear of claim 1, wherein: the length of the bracket (2) extends along the longitudinal direction.

9. The busbar structure of a longitudinally sealed insulated switchgear of claim 1, wherein: the distance between the outlet connectors (7) of the three-phase bus assembly is larger than 125m, and the distance between the outlet connectors (7) and the cabinet wall of the sealed box (1) is larger than 125m.

10. The busbar structure of a longitudinally sealed insulated switchgear of claim 1, wherein: the three fixed contacts (4) are longitudinally arranged; the three outlet connectors (7) are arranged along the transverse direction.