40.5 kV assembled switchgear assembly

Abstract

The utility model discloses a 40.5 kV assembled switchgear assembly, which mainly comprises a front cabinet, a rear cabinet, a main bus chamber, a circuit breaker, an upper isolating switch with a grounding switch, a lower isolating switch with a grounding switch, a manual and electric operating mechanism, an operating mechanism interlocking device, a grounding switch, a lightning arrester, a current transformer, a wall bushing and a bus. A cabinet body of the 40.5 kV assembly type complete switch equipment is formed by connecting and combining bolts, an operating mechanism is in a manual and electric integrated mode, interlocking among a circuit breaker, an isolating switch, a grounding switch, a front cabinet door and a rear cabinet door can be achieved, and the cabinet body is made of aluminum-coated zinc plates. According to the utility model, the production cycle can be shortened, the production efficiency can be improved, energy conservation and environmental protection are realized, the anticorrosion capability is strong, the manual and electric integrated operation mechanism is assembled, and the interlocking is reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of indoor assembled high-voltage switch cabinets, in particular to a 40.5kV high-voltage complete switchgear. Background Art

[0002] The intelligentization and automation of power grids will inevitably become the development direction of the national power grid. As a complete set of switchgear, to achieve intelligence, it is first necessary to realize the electric operation of circuit breakers, disconnectors and earthing switches, while the previous complete sets of switchgear were mostly manual operation mechanisms.

[0003] In addition, since the cabinet of 40.5kV complete switchgear is relatively large, it is currently mostly made by welding. The thermal deformation caused by welding cabinets is difficult to control and the quality stability is poor; after the cabinet is welded, it is pickled and phosphated before being sprayed, which pollutes the environment and prolongs the production cycle; at the same time, the full coverage should be sprayed, but there will be blind spots on some welding points in the inner cavity of the cabinet, which will lead to insufficient anti-corrosion ability in the cabinet over time, affecting the switchgear and causing discharge insulation accidents due to rust. Utility Model Content

[0004] The purpose of the utility model is to provide a 40.5kV assembled complete switchgear which is intelligent, environmentally friendly, safe, reliable and assembled for the above-mentioned deficiencies in the prior art.

[0005] The technical scheme adopted by the utility model is: a 40.5kV assembled complete switchgear, comprising a front cabinet, a rear cabinet, a main busbar room, a circuit breaker, an upper isolating switch with a grounding switch, a lower isolating switch with a grounding switch, a manual electric operating mechanism, an operating mechanism interlocking device, a grounding switch, a lightning arrester, a current transformer, a wall bushing and a busbar: the front cabinet, the rear cabinet and the main busbar room are connected with bolts, the circuit breaker is installed in the front cabinet, the upper isolating switch with a grounding switch, the lower isolating switch with a grounding switch, the grounding switch, the lightning arrester, the current transformer and the wall bushing are installed in the rear cabinet, and are connected with a busbar.

[0006] Furthermore, the cabinet body materials of the front cabinet, rear cabinet and main busbar room are aluminum-zinc coated plates.

[0007] Furthermore, a manual electric operating mechanism is installed on the front cabinet, and the manual electric operating mechanism is connected to the operating mechanism interlocking device.

[0008] The main advantages of the utility model are: the cabinet is bolted and assembled, the cabinet material is aluminum-zinc plate, and the operating mechanism is manual and electric integrated. The whole is intelligent and environmentally friendly, safe and reliable, and can be installed in combination. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0010] Figure 2 It is a front schematic diagram of the utility model;

[0011] The symbols in the figure are: 1-front cabinet, 2-rear cabinet, 3-main busbar room, 4-circuit breaker, 5-upper isolating switch with earthing switch, 6-lower isolating switch with earthing switch, 7-manual electric operating mechanism, 8-operating mechanism interlocking device, 9-earthing switch, 10-lightning arrester, 11-current transformer, 12-wall bushing, 13-busbar. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0013] See also Figure 1-2 As shown, the specific structure is composed of a front cabinet 1, a rear cabinet 2, a main busbar room 3, a circuit breaker 4, an upper isolating switch with a grounding switch 5, a lower isolating switch with a grounding switch 6, a manual electric operating mechanism 7, an operating mechanism interlocking device 8, a grounding switch 9, a lightning arrester 10, a current transformer 11, a wall bushing 12 and a busbar 13, and each component is an existing common structure. First, the front cabinet 1, the rear cabinet 2, and the main busbar room 3 are fastened with bolts, and then the circuit breaker 4 and the manual electric operating mechanism 7 are installed at the corresponding illustrated position in the front cabinet 1. The manual electric operating mechanism 7 is an electric operating mechanism that can be manually operated. Then, the upper isolating switch with a grounding switch 5, the lower isolating switch with a grounding switch 6, the grounding switch 9, the lightning arrester 10, the current transformer 11, the wall bushing 12 and other electrical components are installed at the illustrated position in the rear cabinet 2, and connected with the busbar 13 in a conventional manner. Finally, the operating mechanism interlocking device 8 in the cabinet is connected with the manual electric operating mechanism 7 to achieve interlocking, and the installation is completed.

[0014] The above structure can shorten the production cycle, improve production efficiency, save energy and protect the environment, have strong anti-corrosion ability, and be equipped with a manual and electric operating mechanism with reliable interlocking.

[0015] The specific embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A 40.5 kV assembled switchgear, comprising a front cabinet (1), a rear cabinet (2), a main busbar chamber (3), a circuit breaker (4), an upper isolating switch with an earthing switch (5), a lower isolating switch with an earthing switch (6), a manual electric operating mechanism (7), an operating mechanism interlocking device (8), an earthing switch (9), a lightning arrester (10), a current transformer (11), a wall bushing (12) and a busbar (13), characterized in that: The front cabinet (1), the rear cabinet (2) and the main busbar chamber (3) are connected by bolts, the circuit breaker (4) is installed in the front cabinet (1), the upper isolating switch with grounding switch (5), the lower isolating switch with grounding switch (6), the grounding switch (9), the lightning arrester (10), the current transformer (11) and the wall bushing (12) are installed in the rear cabinet (2) and connected by a busbar (13).

2. The 40.5 kV assembled switchgear according to claim 1 is characterized in that: The cabinet bodies of the front cabinet (1), the rear cabinet (2) and the main busbar room (3) are made of aluminum-zinc coated plates.

3. The 40.5 kV assembled switchgear according to claim 1 or 2, characterized in that: A manual electric operating mechanism (7) is installed on the front cabinet (1), and the manual electric operating mechanism (7) is connected to an operating mechanism interlocking device (8).

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