A common box enclosed busbar interconnection structure

Abstract

The present invention discloses a common box enclosed busbar interconnection structure, comprising two busbar trunking bodies arranged in an upper and lower position, wherein the upper surface of the lower busbar trunking body is connected to a T-shaped frame, and the lower surface of the lower busbar trunking body is connected to an L-shaped frame. An L-shaped copper busbar is provided inside the L-shaped frame, and the tail of the L-shaped copper busbar is connected one-to-one with the busbars inside the busbar trunking body. A first baffle is provided at the open end of the L-shaped frame. A first copper busbar is provided inside the T-shaped frame, and the bottom of the first copper busbar is connected one-to-one with the busbars inside the busbar trunking body. A first clamp is provided on the top of the first copper busbar, and the first clamp clamps the surface of the second copper busbar. A second clamp is provided at the front end of the second copper busbar, and the second clamp matches the L-shaped copper busbar. The present invention pre-arranges the L-shaped frame and the T-shaped frame on the two busbar trunking bodies arranged in an upper and lower position to facilitate quick connection during connection.

Description

Technical Field

[0001] The invention relates to a common box enclosed busbar interconnection structure. Background Art

[0002] Common-box enclosed busbars are widely used to transmit current between the outgoing conductors of generators under 100 MW and the low-voltage side of the main transformer, or between the low-voltage side of the plant transformer and the high-voltage distribution equipment for units 75 MW and above. Common-box enclosed busbars can also be used for AC and DC excitation circuits in generators, as power input busbars for substations, and as power leads for other industrial and civilian facilities.

[0003] Since the common box enclosed busbar is generally the transmission channel connecting the transformer and the power supply and distribution equipment or the generator and the transformer, in some special cases it is necessary to operate the two busbar sections in parallel. It is required not only to be able to parallel quickly but also to quickly disconnect the parallel connection. The adoption of a reliable and simple connection structure is of great benefit to the rapid restoration of the power supply circuit (about an hour). Summary of the Invention

[0004] The purpose of the present invention is to solve the above deficiencies in the prior art and to propose a common box enclosed busbar interconnection structure.

[0005] A common box enclosed busbar interconnection structure includes two busbar trunking bodies arranged one above the other, the upper surface of the lower busbar trunking body being connected to a T-shaped frame, and the lower surface of the lower busbar trunking body being connected to an L-shaped frame, an L-shaped copper busbar being provided inside the L-shaped frame, the tail of the L-shaped copper busbar being connected one-to-one with the busbars inside the busbar trunking body, and a first baffle being provided at the open end of the L-shaped frame; a first copper busbar being provided inside the T-shaped frame, the bottom of the first copper busbar being connected one-to-one with the busbars inside the busbar trunking body, a first claw being provided on the top of the first copper busbar, the first claw clamping the surface of the second copper busbar, the second copper busbar being able to slide back and forth along the first claw, a second claw being provided at the front end of the second copper busbar, the second claw matching the L-shaped copper busbar, and the tail of the second copper busbar being connected to the rear end face of the first claw via a copper spring.

[0006] Preferably, a plurality of arc-shaped protrusions are provided on the inner wall of the first clamping jaw.

[0007] Preferably, a second baffle is provided at the open end of the T-shaped frame, and the second baffle is fixed to the T-shaped frame by bolts, and an insulating fire-resistant coating is attached to the inner wall of the second baffle.

[0008] Preferably, the opening width of the second clamping jaw forms an interference fit with the thickness of the L-shaped copper busbar.

[0009] Preferably, the first copper busbar is made of red copper.

[0010] Preferably, the second copper busbar is made of red copper.

[0011] Beneficial effects:

[0012] In order to ensure a quick response when parallel wiring is required, the present invention pre-arranges an L-shaped frame and a T-shaped frame on the two upper and lower bus duct bodies to facilitate quick connection during connection.

[0013] When parallel connection to the grid is not required, the L-shaped and T-shaped frames in this device are each enclosed by their own baffles to prevent harm from leakage. When interconnection is required, the first baffle on the L-shaped frame and the second baffle on the T-shaped frame are first removed. After removal, the second copper busbar slides forward under the action of the copper spring and eventually snaps onto the L-shaped busbar. At this point, the first, second, and L-shaped copper bars can be used to connect the busbars in the upper and lower busbar bodies one by one, conveniently and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a general schematic diagram of a common box enclosed busbar interconnection structure;

[0015] Figure 2 It is a schematic diagram of the internal structure of a common box enclosed busbar interconnection structure;

[0016] Figure 3 This is a main view of the internal structure of a common box enclosed busbar interconnection structure;

[0017] 1. Bus duct body 2. T-shaped frame 3. L-shaped frame 4. L-shaped copper busbar 5. First copper busbar 6. Second copper busbar 7. Copper spring DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0019] like Figure 1-3 As shown, a common box enclosed busbar interconnection structure includes two busbar trunking bodies 1 arranged upper and lower, the upper surface of the busbar trunking body 1 located below is connected to a T-shaped frame 2, and the lower surface of the busbar trunking body located below is connected to an L-shaped frame 3, an L-shaped copper busbar 4 is provided inside the L-shaped frame 3, and the tail of the L-shaped copper busbar 4 is connected one by one with the busbars inside the busbar trunking body, a first baffle is provided at the open end of the L-shaped frame 3; a second baffle is provided at the open end of the T-shaped frame 2, the second baffle is fixed to the T-shaped frame by bolts, and the inner wall of the second baffle is provided with an insulating fire-resistant coating.

[0020] A first copper bar 5 is installed inside the T-shaped frame 2. Its bottom is connected one-to-one with the busbars inside the bus duct body. A first clamp is located on the top of the first copper bar 5. The first clamp clamps onto the surface of the second copper bar 6, which can slide back and forth along the first clamp. Several arc-shaped protrusions are located on the inner wall of the first clamp. Both the first and second copper bars 5 and 6 are made of red copper.

[0021] A second clamping jaw is provided at the front end of the second copper bar, which matches the L-shaped copper bar. The tail of the second copper bar is connected to the rear end face of the first clamping jaw through a copper spring 7. The opening width of the second clamping jaw is interference fit with the thickness of the L-shaped copper bar.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A common box enclosed busbar interconnection structure, characterized in that: The utility model comprises two bus duct bodies arranged one above the other, the upper surface of the bus duct body located below is connected to a T-shaped frame, and the lower surface of the bus duct body located below is connected to an L-shaped frame, an L-shaped copper bar is provided inside the L-shaped frame, the tail of the L-shaped copper bar is connected one-to-one with the busbars inside the bus duct body, and a first baffle is provided at the open end of the L-shaped frame; a first copper bar is provided inside the T-shaped frame, the bottom of the first copper bar is connected one-to-one with the busbars inside the bus duct body, a first clamping claw is provided on the top of the first copper bar, the first clamping claw clamps the surface of the second copper bar, the second copper bar can slide back and forth along the first clamping claw, a second clamping claw is provided at the front end of the second copper bar, the second clamping claw matches the L-shaped copper bar, and the tail of the second copper bar is connected to the rear end surface of the first clamping claw through a copper spring; A plurality of arc-shaped protrusions are provided on the inner wall of the first clamping jaw; A second baffle is provided at the open end of the T-shaped frame. The second baffle is fixed to the T-shaped frame by bolts. An insulating fire-resistant coating is attached to the inner wall of the second baffle.

2. A common box enclosed busbar interconnection structure according to claim 1, characterized in that: The opening width of the second clamping jaw is interference fit with the thickness of the L-shaped copper busbar.

3. The common box enclosed busbar interconnection structure according to claim 1, characterized in that: The first copper busbar is made of red copper.

4. The common box enclosed busbar interconnection structure according to claim 1, characterized in that: The second copper busbar is made of red copper.

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