High-stability circuit breaker for generator

Abstract

Supporting rods are arranged on the outer sides of the upper end and the lower end of an inclined frame, one end of each supporting rod is connected with an assembling support, the other end of each supporting rod is connected with a supporting connecting plate, the supporting connecting plates are arranged between the two sides of a copper plate support, and a guide connecting copper plate is arranged on the inner side of the copper plate support. A vertical supporting column is arranged between the conductive connection copper plates at the upper end and the lower end, the side faces of the two ends of the vertical supporting column are connected with the inner sides of the conductive connection copper plates at the upper end and the lower end respectively, the vertical supporting column is annularly and circumferentially arranged on the outer side of the arc extinguish chamber, and the outer side of the vertical supporting column is attached to the outer side of the arc extinguish chamber. The supporting assembly is additionally arranged on the circuit breaker assembly which is originally fixed and supported only through an insulator, so that the fixing strength of the circuit breaker is effectively improved, it is guaranteed that the circuit breaker does not deform or fall in the using process, the reliability of a switch is improved, and safety accidents are prevented.

Description

Technical Field

[0001] This article belongs to the technical field of generator circuit breakers, specifically relates to a highly stable generator circuit breaker Background Art

[0002] High-voltage switchgear usually includes many types of switches, such as circuit breakers, isolating switches, etc. Among them, circuit breakers are mostly directly selected from the generator outlet. The generator outlet circuit breaker is used as a switch on the generator outlet side. It is installed between the generator set and the step-up transformer. It serves as a controllable disconnection point between the generator and the power grid to isolate the generator fault and synchronize the generator to the grid.

[0003] Traditional generator outlet circuit breakers are mainly based on SF6 or vacuum media to achieve arc extinguishing and breaking, so they are used inside the gas-insulated chamber inside the high-voltage switchgear or ring network cabinet. However, traditional generator outlet circuit breakers have problems such as slow response speed, long action time, and insufficient breaking capacity, and it is difficult to meet the future fault protection needs of millions of kilowatts and above.

[0004] Traditional large-capacity generator outlet circuit breakers are generally installed in a fixed manner. The main problems are insufficient installation strength, easy deformation and sagging, affecting the reliability of switch separation and maintenance, and being very inconvenient. Utility Model Content

[0005] In order to solve the above problems, this paper proposes a highly stable circuit breaker for a generator, wherein an assembly bracket is vertically and parallelly arranged on the outer side of the circuit breaker, the circuit breaker comprises an arc extinguishing chamber and an insulator, the upper and lower ends of the arc extinguishing chamber are provided with connecting seats, the connecting seats at the upper and lower ends of the arc extinguishing chamber are connected to the assembly bracket through the insulator, the assembly bracket is connected to the insulator through an inclined frame, the upper and lower ends of the inclined frame are provided with a support rod on the outer side, one end of the support rod is connected to the assembly bracket, and the other end of the support rod is connected to the support connecting plate, the support connecting plate is arranged between the two sides of the copper plate bracket, the inner side of the copper plate bracket is provided with a conducting copper plate, and the conducting copper plates are respectively provided with On the left and right sides of the upper and lower ends of the arc extinguishing chamber, the bottom side of the conducting copper plate protrudes from the inner side of the connecting seat of the arc extinguishing chamber, and a vertical support column is provided between the conducting copper plates at the upper and lower ends. The side surfaces at both ends of the vertical support column are respectively connected to the inner sides of the conducting copper plates at the upper and lower ends. The vertical support column is annularly arranged on the outer side of the arc extinguishing chamber, and the outer side of the vertical support column fits with the outer side of the arc extinguishing chamber. By additionally adding a supporting assembly to the circuit breaker assembly that originally only uses insulators for fixed support, the fixing strength of the circuit breaker is effectively improved, ensuring that the circuit breaker will not deform and fall during use, improving the reliability of the switch, and preventing safety accidents.

[0006] The arc extinguishing chamber is in the shape of a Chinese-character cylindrical seat, which is vertically parallel to the assembly bracket. Connecting seats are provided at the upper and lower ends of the arc extinguishing chamber. Connecting bevels are provided inside the rear side of the connecting seat. The surface of the connecting bevels is connected to the end of the insulator. The copper plate brackets on the outside of the two sides of the connecting seat and the rear side of the conducting copper plate are flush with the connecting bevels on the rear side of the connecting seat. The assembly bracket is in the shape of a vertical rectangular plate. An inclined frame and a strut are provided on the surface between the assembly bracket and the arc extinguishing chamber. The transverse center line of the inclined frame is symmetrically expanded and arranged on the upper and lower sides of the surface of the assembly bracket. The two sides of the surface of the inclined frame are connected to the assembly bracket through vertical support feet. The upper and lower outer sides of the upper and lower symmetrical inclined frames are provided with struts, and the struts are symmetrically retracted inwardly connected to the supporting connecting plate. By additionally arranging symmetrical struts on the upper and lower sides of the insulator connected to the arc extinguishing chamber and the assembly bracket, one-step support of the arc extinguishing chamber is achieved, and it can also assist in supporting the insulator, reduce the force strength of the insulator, and prevent fatigue damage of the insulator.

[0007] The copper plate bracket is a vertical plate bracket, and a plurality of heat-conducting grooves are vertically provided on the two side surfaces of the copper plate bracket, and an assembly groove is provided below the one side surface of the copper plate bracket, and a conducting copper plate is fixedly provided on the surface of the assembly groove, and the assembly groove is longitudinally penetrated and arranged below one side of the copper plate bracket, and a support connecting plate is provided between the upper ends of the copper plate brackets in a horizontally flush manner on the outer sides, and the support connecting plate is in a rectangular shape, and the two side edges of the support connecting plate are respectively connected to the copper plate brackets on both sides, and the outer side surface of the support connecting plate is flush with the end surfaces of the copper plate brackets on both sides, and the center of the outer side surface of the support connecting plate is fixedly connected to the support rod, and the support connecting plate is provided above the copper plate bracket, so as to realize the copper plate brackets on both sides of the conducting copper plate, and the suspended positions are connected and fixed to each other to provide sufficient supporting effect, and the support connecting plate can also play the effect of connecting the support rod, and the heat-conducting grooves are provided on both sides of the copper plate bracket, so as to achieve more efficient heat dissipation.

[0008] The vertical support column is in the shape of a rectangular column, and the upper and lower ends of the vertical support column are respectively fixedly connected to the inner sides of the upper and lower conducting copper plates at the two ends. A fitting arc is provided in the middle of the vertical edge on one side of the vertical support column. The curvature of the fitting arc is the same as the curvature of the outer side of the middle part of the arc extinguishing chamber. The fitting arc and the middle part of the arc extinguishing chamber are fitted and connected to each other. The vertical support column can not only assist in supporting the upper and lower conducting copper plates, but also protect and support the protruding position on the outside of the arc extinguishing chamber, thereby improving the safety and stability of the overall circuit breaker.

[0009] The assembly bracket, inclined bracket, support rod, copper plate bracket, support connecting plate and vertical support column are all made of insulating materials. The insulating material is used to ensure the insulation effect of the overall assembly support to prevent the occurrence of conductive leakage.

[0010] Beneficial effects:

[0011] By adding an additional support assembly to the circuit breaker assembly that originally only uses insulators for fixed support, the fixing strength of the circuit breaker is effectively improved, ensuring that the circuit breaker will not deform or fall during use, improving the reliability of the switch, and preventing safety accidents.

[0012] Symmetrical support rods are additionally provided on the upper and lower sides of the insulator connected to the arc extinguishing chamber and the assembly bracket, thereby achieving one-step support for the arc extinguishing chamber, and assisting in supporting the insulator, reducing the stress strength of the insulator, and preventing fatigue damage of the insulator.

[0013] By arranging a supporting connecting plate above the copper plate bracket, the copper plate brackets arranged on both sides of the conductive copper plate are connected and fixed to each other in the suspended position to provide sufficient supporting effect, and the supporting connecting plate can also play the role of connecting the support rods, and thermal conductive grooves are arranged on both sides of the copper plate bracket to achieve more efficient heat dissipation.

[0014] The vertical support columns can not only assist in supporting the upper and lower conductive copper plates, but also protect and support the protruding positions on the outside of the arc extinguishing chamber, thereby improving the safety and stability of the overall circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front side of a circuit breaker for a high-stability generator;

[0016] Figure 2 It is a rear side schematic diagram of a high stability generator circuit breaker;

[0017] In the figure; 1. assembly bracket, 2. oblique bracket, 3. support rod, 4. arc extinguishing chamber, 5. insulator, 6. copper plate bracket, 7. supporting connecting plate, 8. conductive copper plate, 9. vertical support column. DETAILED DESCRIPTION

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

[0019] Assemble the bracket 1, the oblique bracket 2, the support rod 3, the arc extinguishing chamber 4, the insulator 5, the copper plate bracket 6, the supporting connecting plate 7, the conducting copper plate 8, and the vertical support column 9.

[0020] like Figure 1 , 2 As shown;

[0021] A highly stable circuit breaker for a generator, wherein an assembly bracket 1 is vertically and parallelly arranged on the outer side of the circuit breaker, the circuit breaker comprises an arc extinguishing chamber 4 and an insulator 5, the upper and lower ends of the arc extinguishing chamber 4 are provided with connecting seats, the connecting seats on the upper and lower ends of the arc extinguishing chamber 4 are connected to the assembly bracket 1 through the insulator 5, the assembly bracket 1 is connected to the insulator 5 through the oblique bracket 2, the upper and lower ends of the oblique bracket 2 are provided with a support rod 3 on the outer side, one end of the support rod 3 is connected to the assembly bracket 1, and the other end of the support rod 3 is connected to a supporting connecting plate 7, the supporting connecting plate 7 is arranged between the two sides of a copper plate bracket 6, the inner side of the copper plate bracket 6 is provided with a conducting copper plate 8, the conducting copper plate 8 is respectively arranged on the left and right sides of the upper and lower ends of the arc extinguishing chamber 4, and the bottom side of the conducting copper plate 8 protrudes from the extinguishing chamber 4. A vertical support column 9 is provided between the conductive copper plates 8 at the upper and lower ends on the inner side of the connecting seat of the arc chamber 4, and the side surfaces of the two ends of the vertical support column 9 are respectively connected to the inner sides of the conductive copper plates 8 at the upper and lower ends. The vertical support column 9 is arranged in an annular circular manner on the outer side of the arc extinguishing chamber 4, and the outer side of the vertical support column 9 fits with the outer side of the arc extinguishing chamber 4. The arc extinguishing chamber 4 is in the shape of a Chinese-shaped cylindrical seat, and the arc extinguishing chamber 4 is vertically parallel to the assembly bracket 1. Connecting seats are provided at the upper and lower ends of the arc extinguishing chamber 4, and the inner side of the rear side of the connecting seat is provided with a connecting bevel, and the surface of the connecting bevel is connected to the end of the insulator 5. The copper plate bracket 6 on the outside of the two sides of the connecting seat and the rear side of the conductive copper plate 8 are flush with the connecting bevel on the rear side of the connecting seat. The shape of the assembly bracket 1 It is a vertical rectangular plate, and an inclined frame 2 and a strut 3 are provided on the surface between the assembly bracket 1 and the arc extinguishing chamber 4. The inclined frame 2 is symmetrically arranged on the upper and lower sides of the surface of the assembly bracket 1 with a horizontal midline expansion, and the two sides of the surface of the inclined frame 2 are connected to the assembly bracket 1 through vertical legs. The upper and lower outer sides of the upper and lower symmetrical inclined frame 2 are provided with struts 3, and the struts 3 are connected to the supporting connecting plate 7 in a symmetrical inward manner. The copper plate bracket 6 is a vertical plate bracket, and a plurality of thermal conductive grooves are vertically provided on the two side surfaces of the copper plate bracket 6. An assembly groove is provided below the surface of one side of the copper plate bracket 6, and a conductive copper plate 8 is fixedly provided on the surface of the assembly groove. The assembly groove is longitudinally penetrated and arranged below one side of the copper plate bracket 6. The outer side edge between the upper ends of the copper plate bracket 6 is transversely A flush type is provided with a supporting connecting plate 7, the shape of the supporting connecting plate 7 is rectangular, the two side edges of the supporting connecting plate 7 are respectively connected to the copper plate brackets 6 on both sides, the outer surface of the supporting connecting plate 7 is flush with the end faces of the copper plate brackets 6 on both sides, the center of the outer surface of the supporting connecting plate 7 is fixedly connected to the support rod 3, the vertical support column 9 is shaped like a rectangular column, the upper and lower ends of the vertical support column 9 are respectively fixedly connected to the inner sides of the conducting copper plates 8 at the upper and lower ends, a fitting arc is provided in the middle of the vertical edge of one side of the vertical support column, the curvature of the fitting arc is the same as the outer curvature of the middle part of the arc extinguishing chamber 4, the fitting arc is fitted and connected to the middle part of the arc extinguishing chamber 4, the assembly bracket 1, the oblique bracket 2, the support rod 3, the copper plate bracket 6, the supporting connecting plate 7 and the vertical support column 9 are all made of insulating materials.

[0022] Implementation examples;

[0023] During use, the copper plate brackets 6 at the upper and lower ends of the arc extinguishing chamber 4 are supported by the support rods 3, so as to reduce the force on the insulator 5, wherein the support connecting plates 7 are arranged between the copper plate straight frames, so as to realize the installation of the support rods 3 while strengthening the connection of the copper plate brackets 6 to improve the strength, and the vertical support columns 9 on the outside of the arc extinguishing chamber 4 can not only support and fix the upper and lower conductive copper plates 8 to each other, but also provide protective support for the outside of the arc extinguishing chamber 4.

[0024] 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 protection scope of the present invention.

Claims

1. A highly stable generator circuit breaker, wherein an assembly bracket is vertically and parallelly arranged on the outer side of the circuit breaker, the circuit breaker comprises an arc extinguishing chamber and an insulator, the upper and lower ends of the arc extinguishing chamber are provided with connecting seats, and the connecting seats at the upper and lower ends of the arc extinguishing chamber are connected to the assembly bracket through the insulator, characterized in that: The assembly bracket is connected to the insulator through an inclined bracket, and support rods are provided on the outer sides of the upper and lower ends of the inclined bracket, one end of the support rod is connected to the assembly bracket, and the other end of the support rod is connected to the support connecting plate, and the support connecting plate is arranged between the two sides of the copper plate bracket, and a conducting copper plate is provided on the inner side of the copper plate bracket, and the conducting copper plates are respectively arranged on the left and right sides of the upper and lower ends of the arc extinguishing chamber, and the bottom side of the conducting copper plate protrudes from the inner side of the connecting seat of the arc extinguishing chamber, and a vertical support column is provided between the conducting copper plates at the upper and lower ends, and the side surfaces of the two ends of the vertical support column are respectively connected to the inner sides of the conducting copper plates at the upper and lower ends, and the vertical support column is annularly arranged on the outer side of the arc extinguishing chamber, and the outer side of the vertical support column fits the outer side of the arc extinguishing chamber.

2. A highly stable generator circuit breaker according to claim 1, characterized in that: The arc extinguishing chamber is in the shape of a Chinese-character cylindrical seat, which is vertically parallel to the assembly bracket. A connecting bevel is provided inside the rear side of the connecting seat, and the surface of the connecting bevel is connected to the end of the insulator. The copper plate brackets on the outside of both sides of the connecting seat and the rear side of the conducting copper plate are flush with the connecting bevel on the rear side of the connecting seat.

3. A highly stable generator circuit breaker according to claim 1, characterized in that: The assembly bracket is in the shape of a vertical rectangular plate, and an inclined frame and a strut are provided on the surface between the assembly bracket and the arc extinguishing chamber. The inclined frame is symmetrically arranged on the upper and lower sides of the surface of the assembly bracket with its transverse midline expanded outward, and the two sides of the surface of the inclined frame are connected to the assembly bracket through vertical support feet. The upper and lower outer sides of the upper and lower symmetrical inclined frame are provided with struts, and the struts are symmetrically retracted inward and connected to the supporting connecting plate.

4. A highly stable generator circuit breaker according to claim 1, characterized in that: The copper plate bracket is a vertical plate bracket, and a number of temperature conducting grooves are vertically arranged on the two side surfaces of the copper plate bracket. An assembly groove is arranged below the surface of one side of the copper plate bracket. A conducting copper plate is fixed on the surface of the assembly groove. The assembly groove is longitudinally penetrated and arranged below one side of the copper plate bracket. A supporting connecting plate is arranged horizontally and flushly on the outer sides between the upper ends of the copper plate bracket.

5. A highly stable generator circuit breaker according to claim 1, characterized in that: The support connecting plate is in the shape of a rectangle, and its two side edges are respectively connected to the copper plate brackets on both sides, the outer surface of the support connecting plate is flush with the end surfaces of the copper plate brackets on both sides, and the center of the outer surface of the support connecting plate is fixedly connected to the support rod.

6. A highly stable generator circuit breaker according to claim 1, characterized in that: The vertical support column is shaped like a rectangular column, and the upper and lower ends of the vertical support column are respectively fixedly connected to the inner sides of the conductive copper plates at the upper and lower ends. A fitting arc is provided in the middle of the vertical edge on one side of the vertical support column. The curvature of the fitting arc is the same as the outer curvature of the middle part of the arc extinguishing chamber, and the fitting arc is fitted and connected to the middle part of the arc extinguishing chamber.

7. A highly stable generator circuit breaker according to claim 1, characterized in that: The assembly bracket, the oblique bracket, the support rod, the copper plate bracket, the support connecting plate and the vertical support column are all made of insulating materials.

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