A factory prefabricated integrated combined 10kV high-voltage switchgear

Abstract

The present invention is a factory prefabricated integrated combined 10 kV high-voltage switchgear, which includes a load-bearing base, a high-voltage switchgear, a transfer cabinet and a transfer cable; the incoming line end and the outgoing line end of the high-voltage switchgear are respectively led out to the inner chamber of the transfer cabinet through the transfer cable and are correspondingly connected to one end of the electrode core columns of each group of double-pass insulating bushing seats; on the isolation vertical plate surface of the outer chamber of the transfer cabinet, the words "incoming line connection terminal" and "outgoing line connection terminal" are respectively marked at the other ends of the electrode core columns of each group of double-pass insulating bushing seats; the present invention can reduce technical processes such as connecting complex internal interlock wires and parallel network wires required for on-site cabinet parallel connection operations, and users only need to connect the input line and the output line to use.

Description

Technical Field

[0001] The present invention is a factory prefabricated integrated combined 10kV high-voltage switchgear cabinet, belonging to the technical field of high-voltage switchgear electrical equipment. Background Art

[0002] The 10kV high-voltage switchgear cabinet is a device used to connect high-voltage electricity. Its internal structure is an electrical device that assembles some high-voltage switch circuit breakers and other protection devices into one. However, the existing technology still has the following disadvantages: When applied outdoors, the original primary and secondary high-voltage equipment has mismatched user interfaces, poor compatibility, expandability, and interchangeability, and lacks a linkage test mechanism for primary and secondary high-voltage equipment; it is neither convenient for secondary handling, occupies a large area, nor convenient for disassembly, installation, maintenance, and use; in addition, the original high-voltage equipment is used by combining cabinets one by one, the on-site wiring is cumbersome, and the construction period is long; there are many on-site connections and wiring points during disassembly and assembly, and it is easy to make mistakes, requiring professional senior technical operators to operate. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a factory prefabricated integrated combined 10kV high-voltage switchgear cabinet, which integrates the incoming and outgoing lines, the main body, the mechanism, and the protection of the high-voltage switchgear cabinet, can reduce technical processes such as connecting complex internal interlock wires and parallel network wires required for on-site cabinet combination operations. Users only need to connect the input line and the output line to use it, and it has the characteristics of a small structure, convenient hoisting and transportation.

[0004] The technical problems solved by the present invention can be realized by adopting the following technical solutions:

[0005] A factory prefabricated integrated combined 10kV high-voltage switchgear cabinet includes a load-bearing base, a high-voltage switchgear cabinet, a transfer cabinet, and a transfer cable; when the load-bearing base is prefabricated in the factory, installation positions and fixed connection holes for the high-voltage switchgear cabinet and the transfer cabinet are provided; a hoisting and transfer ring is also provided on the load-bearing base; the high-voltage switchgear cabinet is a combined body of one or more unit cabinets, and switch protection equipment, measuring equipment, and switch control mechanisms are pre-integrated and installed inside each unit cabinet; the transfer cabinet is a small cabinet and is installed beside the high-voltage switchgear cabinet. There is an isolation vertical plate in the transfer cabinet that divides the transfer cabinet body into two spaces, an inner room and an outer room; through-hole groups for incoming lines and through-hole groups for outgoing lines are designed on the isolation vertical plate; a double-pass insulating bushing seat with an electrode core column is installed in each through-hole of each group.

[0006] The incoming line end and the outgoing line end of the above-mentioned high-voltage switchgear cabinet are respectively led out to the inner room of the transfer cabinet through the transfer cable and are correspondingly connected to one end of the electrode core column of each group of double-pass insulating bushing seats; on the outer surface of the isolation vertical plate in the outer room of the transfer cabinet, the other ends of the electrode core columns of each group of double-pass insulating bushing seats are respectively marked with the words "incoming line connection end" and "outgoing line connection end".

[0007] The unit cabinets of the high-voltage switchgear are of an integrated combined structure. The switch protection device is installed on one side of the upper layer of the unit cabinet; the measuring device and the switch control mechanism are installed on the other side of the upper layer of the unit cabinet; the incoming line end and the outgoing line end of the high-voltage switchgear are installed on the lower layer of the unit cabinet; the transfer cable is led out from the bottom end of the unit cabinet.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0009] The load-bearing base of the present invention is independently designed. After being prefabricated in the factory, it is assembled with each high-voltage switchgear and transfer cabinet. The equipment is small and flexible, which can facilitate on-site primary hoisting and transportation. At the same time, for secondary transportation, disassembly and assembly, the user only needs to disconnect the connection wires at one time, and nothing else needs to be moved, which is convenient for operation and maintenance disassembly and assembly. The high-voltage switchgear of the present invention is the core of the electrical switchgear. The switch protection device, measuring device and switch control mechanism are integrally installed inside it. Several high-voltage switchgears are combined into one and combined with the base as a whole. The present invention adopts a transfer cable to lead the incoming and outgoing lines in the miniaturized high-voltage switchgear to the conventional connection terminals. Ordinary electricians on site can handle the wiring work, solving professional technical work such as on-site cabinet connection and secondary wiring, and greatly reducing the on-site construction time. The transfer cabinet of the present invention can change the complex high-voltage switchgear wiring into simple incoming line connection terminals and outgoing line connection terminals for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes and advantages of the present invention will become more obvious:

[0011] Figure 1 It is a schematic diagram of the present invention.

[0012] In the figure: 1 load-bearing base; 2 high-voltage switchgear; 3 transfer cabinet; 4 switch protection device; 5 measuring device; 6 switch control mechanism; 7 isolation vertical plate; 8 inner chamber; 9 outer chamber; 10 incoming line end; 11 outgoing line end; 12 transfer cable. EMBODIMENTS

[0013] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0014] Please refer to Figure 1, this embodiment provides a factory prefabricated integrated combined 10kV high-voltage switchgear, including a load-bearing base 1, a high-voltage switchgear 2, a transfer cabinet 3 and a transfer cable 12; characterized in that: when the load-bearing base 1 is prefabricated in the factory, installation positions and fixed connection holes for the high-voltage switchgear 2 and the transfer cabinet 3 are provided in cooperation; a hoisting and transfer ring is also provided on the load-bearing base 1; the high-voltage switchgear 2 is a combined body of one or more unit cabinets, and switch protection equipment 4, measuring equipment 5 and a switch control mechanism 6 are pre-integrated and installed inside each unit cabinet; the transfer cabinet 3 is a small cabinet and is installed beside the high-voltage switchgear 2, and an isolation vertical plate 7 in the transfer cabinet 3 divides the transfer cabinet body into two spaces, an inner chamber 8 and an outer chamber 9; through-hole groups for an incoming line end 10 and an outgoing line end 11 are designed on the isolation vertical plate 7; a double-pass insulating bushing seat with an electrode core column is installed in each through-hole in each group.

[0015] The incoming line end 10 and the outgoing line end 11 of the above-mentioned high-voltage switchgear 2 are respectively led out to the inner chamber 8 of the transfer cabinet 3 through the transfer cable 12 and are correspondingly connected to one end of the electrode core column of each group of double-pass insulating bushing seats; on the surface of the isolation vertical plate 7 in the outer chamber 9 of the transfer cabinet 3, the other ends of the electrode core columns of each group of double-pass insulating bushing seats are respectively marked with the words "incoming line connection terminal" and "outgoing line connection terminal".

[0016] The unit cabinets of the high-voltage switchgear 2 are of an integrated combined structure, the switch protection equipment 4 is installed on one side of the upper layer of the unit cabinet; the measuring equipment 5 and the switch control mechanism 6 are installed on the other side of the upper layer of the unit cabinet; the incoming line end 10 and the outgoing line end 11 of the high-voltage switchgear 2 are installed on the lower layer of the unit cabinet; the transfer cable 12 is led out from the bottom end of the unit cabinet.

[0017] Further, the double-pass insulating bushing seat adopts a European-style double-pass bushing seat, and the outer surface of the bushing seat has umbrella skirts.

[0018] Further, the load-bearing base 1, the high-voltage switchgear 2 and the transfer cabinet 3 are connected through a detachable structure.

[0019] When using the present invention, in the first step, the cabinet drawings are designed as a whole and various components are prepared; in the second step, the high-voltage switchgear 2, the conversion cabinet and the base are produced; in the third step, the primary and secondary connection wires of the high-voltage switchgear 2 are prefabricated and integrated in the factory and inspected and tested; in the fourth step, the load-bearing base 1, the high-voltage switchgear 2 and the transfer cabinet 3 are hoisted to the site for assembly, and the user connects the incoming line and the outgoing line by himself.

Claims

1. An integrated prefabricated 10kV high-voltage switchgear combination for factories, comprising a load-bearing base (1), a high-voltage switchgear (2), a transfer cabinet (3) and a transfer cable (12); characterized in that: When the load-bearing base (1) is prefabricated in the factory, installation positions and fixed connection holes for the high-voltage switchgear (2) and transfer cabinet (3) are provided; a hoisting and transfer ring is also provided on the load-bearing base (1); the high-voltage switchgear (2) is a combined body of one or more unit cabinets, and switch protection equipment (4), measuring equipment (5), and switch control mechanisms (6) are pre-integrated and installed inside each unit cabinet; the transfer cabinet (3) is a small cabinet and is installed beside the high-voltage switchgear (2) by leaning against it. There is an isolation vertical plate (7) inside the transfer cabinet (3) that divides the transfer cabinet body into two spaces, an inner chamber (8) and an outer chamber (9); through-hole groups for the incoming line end (10) and outgoing line end (11) are designed on the isolation vertical plate (7); a double-pass insulating bushing seat with an electrode core column is installed in each through-hole of each group; the incoming line end (10) and outgoing line end (11) of the above-mentioned high-voltage switchgear (2) are respectively led out to the inner chamber (8) of the transfer cabinet (3) through a transfer cable (12) and are correspondingly connected to one end of the electrode core column of each group of double-pass insulating bushing seats; on the surface of the isolation vertical plate (7) of the outer chamber (9) of the transfer cabinet (3), the words "incoming line connection terminal" and "outgoing line connection terminal" are respectively marked at the other ends of the electrode core columns of each group of double-pass insulating bushing seats; between the unit cabinets of the high-voltage switchgear (2) is an integrated combined structure, the switch protection equipment (4) is installed on one side of the upper layer of the unit cabinet; the measuring equipment (5) and switch control mechanisms (6) are installed on the other side of the upper layer of the unit cabinet; the incoming line end (10) and outgoing line end (11) of the high-voltage switchgear (2) are installed on the lower layer of the unit cabinet; the transfer cable (12) is led out from the bottom end of the unit cabinet; When installing the load-bearing base (1), high-voltage switchgear (2), and transfer cabinet (3), in the first step, the cabinet body drawings are designed as a whole and various types of parts are prepared; in the second step, the high-voltage switchgear (2) and the conversion cabinet and the base are produced; in the third step, the primary and secondary connection wires of the high-voltage switchgear (2) are prefabricated and integrated in the factory and inspected and tested; in the fourth step, the load-bearing base (1), high-voltage switchgear (2), and transfer cabinet (3) are hoisted to the site for assembly, and the user connects the incoming line and outgoing line by themselves.

2. The prefabricated integrated combined 10kV high-voltage switchgear according to claim 1, wherein: The double-pass insulating bushing seat adopts a European-style double-pass bushing seat, and the outer surface of the bushing seat has umbrella skirts.

3. The prefabricated integrated combined 10kV high-voltage switchgear according to claim 1, characterized in that: The load-bearing base (1), high-voltage switchgear (2), and transfer cabinet (3) are connected through a detachable structure.

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