Vertical bent copper bar of power distribution cabinet

Abstract

The utility model relates to a vertical bent copper bar of a power distribution cabinet, which comprises a wire inlet cabinet, a capacitor cabinet and a wire outlet cabinet, and is characterized in that a frame circuit breaker is arranged in the wire inlet cabinet, and a wire outlet cabinet knife switch is arranged in the wire outlet cabinet; the vertical bent copper bar enters the frame circuit breaker of the wire inlet cabinet and is bent to the capacitor cabinet, the low-voltage wire outlet cabinet and the wire outlet cabinet knife switch respectively, and the bending angle of the vertical bent copper bar is 90-170 degrees; the wire inlet cabinet and the capacitor cabinet are connected through an integral vertically-bent copper bar, the capacitor cabinet and the wire outlet cabinet are connected through an integral vertically-bent copper bar, the vertically-bent copper bar enters the capacitor cabinet from the lower end of a frame circuit breaker of the wire inlet cabinet, and a main loop formed by the upper end of a knife switch of the wire outlet cabinet is an integral vertically-bent copper bar. The whole main loop is formed by one vertical bending copper bar, so that the whole main loop is prevented from being burnt out due to heating of a plurality of lap joints, the safety is improved, the whole vertical bending copper bar is adopted, the copper bars are saved, and the cost is reduced.

Description

Technical Field

[0001] The invention belongs to the field of high and low voltage power distribution, and in particular relates to a vertical bent copper busbar of a power distribution cabinet. Background Art

[0002] The distribution cabinet is divided into power distribution cabinet, lighting distribution cabinet and metering cabinet, which is the final equipment of the distribution system. The distribution cabinet is used in places where the load is relatively dispersed and there are fewer circuits; the motor control center is used in places where the load is concentrated and there are more circuits. They distribute the electric energy of a circuit of the upper-level distribution equipment to the nearest load. This level of equipment should provide protection, monitoring and control for the load. The first-level distribution equipment is collectively referred to as the power distribution center. They are centrally installed in the enterprise's substation to distribute electric energy to the lower-level distribution equipment in different locations. This level of equipment is close to the step-down transformer, so the electrical parameters are required to be higher and the output circuit capacity is also larger. Copper busbars or copper busbars have been widely used in electrical equipment, especially complete sets of distribution equipment. They play the role of transmitting current and connecting electrical equipment in the circuit. They are made of copper. Now rounded copper busbars are generally used, and they are used more in equipment.

[0003] In the prior art, the switch cabinet of the distribution cabinet generally has the lower end of the incoming cabinet frame circuit breaker as the outgoing end. The incoming cabinet ABC three-phase single-row copper bar without an incoming knife switch is about 1-5M from the top of the cabinet, and the zero row N needs to extend from the bottom of the cabinet to the top of the cabinet, and then to the upper end of the capacitor cabinet and the knife switch of the outgoing cabinet. The main circuit is connected by a copper bar, and the middle and turning points need to be composed of multiple sections. Since some copper bars are relatively thick, with a width of 150mm and a thickness of 20mm, they are mostly connected by overlapping points. The connection process of the overlapping points is relatively simple. It is measured according to the required wiring length between the overlapping points. The overlapping points are fastened with fasteners. Because the connection process of the overlapping points is relatively simple, it is widely used by distribution cabinet manufacturers. However, during the use of the distribution cabinet application enterprises, it is found that the overlapping points are very easy to heat up and cause the entire main circuit to burn. At the same time, the more copper bar sections there are, the longer the total length is, which significantly increases the cost. This is an urgent problem that needs to be solved in the actual production and use process. Summary of the invention

[0004] The problem to be solved by the utility model is that the main busbar copper bar in the existing power distribution cabinet complete set has many bending parts, so the copper bar needs more overlapping points, and the number of copper bar sections used also increases accordingly, which increases the cost. The overlapping points are easy to heat up and cause the entire main circuit to burn, resulting in equipment failure and safety problems. Provided is a distribution cabinet vertical bending copper bar, the entire main circuit is composed of a vertical bending copper bar, avoids the heating of multiple overlapping points causing the entire main circuit to burn, improves safety, and uses a whole vertical bending copper bar, saving copper bars and reducing costs.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a vertical bent copper busbar of a power distribution cabinet, comprising an incoming line cabinet, a capacitor cabinet, and an outgoing line cabinet, mainly a frame circuit breaker is installed in the incoming line cabinet, and an outgoing line cabinet knife switch is installed in the outgoing line cabinet;

[0006] The vertical bending copper bar is bent from the lower end of the frame circuit breaker of the incoming cabinet to the outgoing cabinet and the knife switch of the outgoing cabinet to form a copper bar, and the bending angle of the vertical bending copper bar is 90-170 degrees;

[0007] The connection between the outgoing line of the incoming cabinet and the incoming line of the outgoing cabinet is an integral vertical bent copper busbar, and the main circuit formed by the vertical bent copper busbar from the lower end of the incoming cabinet frame circuit breaker to the upper end of the outgoing cabinet knife switch is an integral vertical bent copper busbar.

[0008] Preferably, a capacitor cabinet knife switch is installed in the capacitor cabinet, and the incoming line of the capacitor cabinet knife switch is overlapped on the vertical bent copper busbar of the main circuit.

[0009] The advantages and positive effects of the utility model are:

[0010] 1. The utility model discloses a vertical bent copper busbar for a distribution cabinet. In the distribution cabinet, the main circuit from the incoming cabinet and the outgoing cabinet is formed by a vertical bent copper busbar because the lower end of the incoming cabinet frame circuit breaker is the outgoing end to the upper end of the knife switch of the outgoing cabinet. The bending angle of the vertical bent copper busbar is 90-170 degrees according to actual needs, without any overlapping points, thus avoiding the main circuit having multiple overlapping points composed of multiple copper buses. The entire main circuit is composed of a vertical bent copper busbar, which has a simple structure, is easy to install, and improves production efficiency.

[0011] 2. The utility model discloses a vertical bent copper busbar for a power distribution cabinet. Since the outgoing line of the incoming line cabinet and the incoming line of the low-voltage outgoing line cabinet are integral vertical bent copper busbars, the existing main circuit of the power distribution cabinet has at least 3 or more joints, which prevents the joints from heating up and causing the entire main circuit to burn out when a large current passes through. The entire vertical bent copper busbar saves copper busbars and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model provides a structural schematic diagram of a low-voltage power distribution cabinet with vertical bent copper bars.

[0013] 1-incoming cabinet, 2-bending angle, 3-vertical bending copper busbar, 4-frame circuit breaker, 5-capacitor cabinet, 6-outgoing cabinet, 7-capacitor cabinet knife switch, 8-bridging point, 9-outgoing cabinet knife switch. DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below with reference to specific embodiments.

[0015] like Figure 1As shown, a distribution cabinet vertical bending copper bar 3 is made of copper material. The distribution cabinet used for high and low voltage distribution cabinets generally consists of an incoming line cabinet 1 and an outgoing line cabinet 6. When used for a low voltage distribution cabinet, it can be composed of an incoming line cabinet 1, a capacitor cabinet 5, and an outgoing line cabinet 6. A frame circuit breaker 4 is installed in the incoming line cabinet 1, and an outgoing line cabinet knife switch 9 is installed in the outgoing line cabinet 6; a capacitor cabinet knife switch 7 is installed in the capacitor cabinet 5.

[0016] Taking the low-voltage distribution cabinet as an example, the vertically bent copper busbar 3 enters from the lower end of the frame circuit breaker 4 of the incoming cabinet 1 and bends upward, then bends to the capacitor cabinet 5, to the low-voltage outgoing cabinet 6, and then bends to enter the outgoing cabinet knife switch 9. It is a whole copper busbar. Through the vertically bent copper busbar 3, the main circuit is formed from the lower end of the frame circuit breaker 4 of the incoming cabinet 1 in the distribution cabinet to the capacitor cabinet 5 and the upper end of the outgoing cabinet knife switch 9. The bending angle 2 of the vertically bent copper busbar 3 is 90-170 degrees; the vertically bent copper busbar 3 is made by a bending machine and can be processed into a bending angle 2 of 90 degrees or above, or 170 degrees, which is convenient for laying copper busbar lines in the distribution cabinet.

[0017] The outgoing line bent copper bar 3 of the incoming line cabinet 1 and the incoming line bent copper bar 3 of the capacitor cabinet 5 are connected as an integral vertical bent copper bar 3, the outgoing line bent copper bar 3 of the capacitor cabinet 5 and the incoming line bent copper bar 3 of the outgoing line cabinet 6 are connected as an integral vertical bent copper bar 3 without a lap joint 8, while the incoming line of the capacitor cabinet knife switch 7 needs to be overlapped on the vertical bent copper bar 3 of the main circuit, and the main circuit vertical bent copper bar 3 and the incoming line of the capacitor cabinet knife switch 7 have a lap joint 8.

[0018] The general distribution cabinet includes an incoming cabinet 1 and an outgoing cabinet 6. The vertical copper bar 3 is bent from the lower end of the frame circuit breaker 4 of the incoming cabinet 1 to the low-voltage outgoing cabinet 6, and then bent to enter the knife switch 9 of the outgoing cabinet. It is a whole copper bar. The main circuit is formed from the lower end of the frame circuit breaker 4 of the incoming cabinet 1 in the distribution cabinet to the upper end of the knife switch 9 of the outgoing cabinet through the vertical copper bar 3. The bending angle 2 of the vertical copper bar 3 is 90 degrees. The outgoing vertical copper bar 3 of the incoming cabinet 1 and the incoming vertical copper bar 3 of the outgoing cabinet 6 are connected as a whole vertical copper bar 3 without a lap joint 8.

[0019] During operation, the ABC three-phase vertical bent copper busbar 3 of the incoming cabinet 1 enters from the lower end of the frame circuit breaker 4 of the incoming cabinet 1, and the zero row N vertical bent copper busbar 3 needs to extend from the bottom of the cabinet to the top of the cabinet to go out, and the ABC three-phase vertical bent copper busbar 3 is from the lower end of the frame circuit breaker 4 of the incoming cabinet 1 in the distribution cabinet to the main circuit of the capacitor cabinet 5 and the upper end of the knife switch 9 of the outgoing cabinet. The three-phase incoming line of the capacitor cabinet knife switch 7 is overlapped on the ABC three-phase vertical bent copper busbar 3 of the main circuit. There are three overlapping points 8 between the main circuit vertical bent copper busbar 3 and the capacitor cabinet knife switch 7 incoming line.

[0020] The above embodiments of the utility model are described in detail, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of the utility model should still fall within the scope of this patent.

Claims

1. A vertically bent copper bar for a power distribution cabinet, comprising an incoming line cabinet, a capacitor cabinet, and an outgoing line cabinet, characterized in that: A frame circuit breaker is installed in the incoming cabinet, and a knife switch of the outgoing cabinet is installed in the outgoing cabinet; The vertical bending copper bar is bent from the lower end of the frame circuit breaker of the incoming cabinet to the outgoing cabinet and the knife switch of the outgoing cabinet to form a copper bar, and the bending angle of the vertical bending copper bar is 90-170 degrees; The connection between the outgoing line of the incoming cabinet and the incoming line of the outgoing cabinet is an integral vertical bent copper busbar, and the main circuit formed by the vertical bent copper busbar from the lower end of the incoming cabinet frame circuit breaker to the upper end of the outgoing cabinet knife switch is an integral vertical bent copper busbar.

2. A vertically bent copper busbar for a power distribution cabinet according to claim 1, characterized in that: A capacitor cabinet knife switch is installed in the capacitor cabinet, and the incoming line of the capacitor cabinet knife switch is overlapped on the vertical bent copper busbar of the main circuit.

Images