10kV large-current high-voltage cabinet
By adding insulator fixing points, setting horizontal partitions and fans, enlarging the shutters, and using 304 stainless steel in the 10kV high-current high-voltage cabinet, the problems of busbar vibration and heating were solved, and better heat dissipation and anti-eddy current effects were achieved.
Patent Information
- Application Number
- CN202422885923.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-26
AI Technical Summary
The existing 10kV high-current high-voltage cabinet vibrates and generates heat during operation due to the lack of busbar support points, and the heat dissipation effect is poor, resulting in temperature accumulation and increased noise.
By adding insulator fixing points on the incoming busbar and outgoing busbar, setting up horizontal partitions and fans, expanding the shutter area, and using 304 stainless steel to block the magnetic circuit, an effective air duct is formed to improve the heat dissipation effect.
It effectively reduces busbar vibration and heating, prevents eddy currents, reduces noise, improves heat dissipation efficiency, and solves the vibration and heating problems of high-voltage and high-current cabinets.
Smart Images
Figure CN223451413U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to 10kV high current high tension cabinet in the technical field of high tension cabinet. BACKGROUND
[0002] The existing high current high tension cabinet (4000A) cabinet body, in the operation process, when the working current is greater than 3500A, the cabinet body will produce eddy current, resulting in the cabinet body temperature rise, busbar heating, resonance, vibration increase, noise increase. The reason is that the busbar support point in the cabinet is less, easy to produce vibration and heating, and the temperature of the busbar room only relies on the hot air rising to form natural heat dissipation, the louver opening of the back upper door, back lower door and front lower door is small, and the height of the pressure relief plate is insufficient, which is not conducive to air flow, and the temperature is gathered at the top of the rear part (busbar room) of the cabinet body, and the temperature of the top of the cabinet body is high. The busbar magnetic circuit is not completely blocked, and eddy current is easy to produce when the current reaches 3500A or above. SUMMARY
[0003] The utility model discloses a kind of 10kV high current high tension cabinets, solve the vibration and heating problem in the operation of high voltage high current cabinet.
[0004] To achieve the above object, the utility model provides a kind of 10kV high current high tension cabinet, including cabinet body, cabinet body is divided into front and rear by vertical partition, the rear of cabinet body is provided with busbar room and cable room, the front of cabinet body is provided with circuit breaker room, circuit breaker is provided in circuit breaker room, the incoming line end of circuit breaker is connected with incoming line busbar by incoming line contact box, the outgoing line end of circuit breaker is connected with outgoing line busbar by outgoing line contact box, three incoming line insulators are arranged on the end face of incoming line busbar opposite cabinet body rear door in upper-middle-lower, the two ends of incoming line insulator are connected with incoming line busbar and rear support crossbeam respectively, rear support crossbeam is set in the rear of cabinet body, the bottom of incoming line busbar is provided with support block, incoming line insulator is connected between the front end of support block and vertical partition.
[0005] Compared with prior art, the utility model has the advantages that by increasing incoming line insulator on incoming line busbar, more effective fixing points are formed between incoming line busbar and rear support crossbeam and between vertical partition, so that the vibration of incoming line busbar is reduced, and the heating of busbar is reduced.
[0006] As a further improvement of the utility model, a horizontal partition is provided between the incoming line contact box and the outgoing line contact box, the front end of the horizontal partition is connected with the vertical partition, the rear end of the horizontal partition is connected with the lower end of the rear support plate, the upper end of the rear support plate is connected with the top of the cabinet body, one outgoing line insulator is connected between each of the three wire connection ends of the outgoing line busbar and the rear support plate, and the outgoing line insulator is connected between the upper part of the end face of the outgoing line busbar opposite the vertical partition and the vertical partition.
[0007] In this way, the cable chamber and the busbar chamber are separated by the horizontal partition plate and the rear support plate, the outgoing busbar is located in the busbar chamber, and a plurality of good fixing points are formed between the outgoing busbar and the middle partition plate and the rear support plate respectively, so that vibration of the outgoing busbar is effectively reduced, and heat emission of the busbar is reduced.
[0008] As a further improvement of the utility model, a fan is arranged in the pressure relief plate at the top of the busbar chamber and the pressure relief plate at the top of the circuit breaker chamber.
[0009] In this way, air is taken in at the lower part of the cabinet body and air is taken out at the upper part of the cabinet body, an effective air duct is formed, and the heat dissipation effect in the cabinet is improved.
[0010] As a further improvement of the utility model, the area of the louvers of the rear upper door, the rear lower door and the front lower door of the cabinet body is 0.4 square meters.
[0011] In this way, the area of the louvers of the rear upper door, the rear lower door and the front lower door is increased, ventilation is increased, and heat dissipation in the cabinet is further improved.
[0012] As a further improvement of the utility model, the side plate, the rear support plate, the top plate at the rear part of the cabinet body, the rear support cross beam and the rear upper door of the cabinet body are made of 304 stainless steel.
[0013] In this way, the characteristic that the relative magnetic permeability of 304 stainless steel is close to 1 is utilized, the magnetic circuit of the entire busbar chamber and the cable chamber is better blocked, and eddy current generated in the cabinet body is prevented. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is an internal structure schematic view of the utility model.
[0015] Fig. 2 It is a front view of the utility model.
[0016] Fig. 3 It is a rear view of the utility model.
[0017] Among them, 1 is a circuit breaker chamber, 2 is a vertical partition plate, 3 is a fan, 4 is a pressure relief plate, 5 is an outgoing busbar, 6 is an outgoing insulator, 7 is a busbar chamber, 8 is a rear support plate, 9 is an incoming insulator, 10 is an incoming busbar, 11 is a rear support cross beam, 12 is a support block, 13 is a front lower door, 14 is a louver, 15 is a rear upper door, 16 is a rear lower door, 17 is a cable chamber, 18 is a side plate, 19 is a top plate, 20 is an outgoing contact box, 21 is an incoming contact box, and 22 is a horizontal partition plate. DETAILED DESCRIPTION
[0018] The utility model will be further described below in combination with the drawings:
[0019] For example, Figs. 1-3The utility model discloses a 10kV high voltage cabinet of large current, including the cabinet, the cabinet is divided into the front and rear by vertical partition 2, the rear of cabinet is provided with bus chamber 7 and cable chamber 17, the front of cabinet is provided with circuit breaker chamber 1, be provided with circuit breaker in circuit breaker chamber 1, the incoming line end of circuit breaker is connected with incoming line busbar 10 through incoming line contact box 21, the outgoing line end of circuit breaker is connected with outgoing line busbar 5 through outgoing line contact box 21, the end surface of incoming line busbar 10 opposite the rear door of cabinet is arranged three incoming line insulators 9 in upper middle and lower, and the both ends of incoming line insulator 9 are connected with incoming line busbar 10 and rear support crossbeam 11 respectively, and rear support crossbeam 11 is arranged in the rear of cabinet, and the bottom of incoming line busbar 10 is provided with support block 12, and the front end of support block 12 is connected with vertical partition 2, and the rear end of vertical partition 2 is connected with the lower end of rear support plate 8, and the upper end of rear support plate 8 is connected with the top of cabinet, and the three wiring ends of outgoing line busbar 5 are connected with rear support plate 8 respectively, and one outgoing line insulator 6 is connected between the upper portion of outgoing line busbar 5 opposite vertical partition 2 and vertical partition 2.
[0020] Horizontal partition 22 is arranged between incoming line contact box 21 and outgoing line contact box 20, and the front end of horizontal partition 22 is connected with vertical partition 2, and the rear end of horizontal partition 22 is connected with the lower end of rear support plate 8, and the upper end of rear support plate 8 is connected with the top of cabinet, and one outgoing line insulator 6 is connected between the three wiring ends of outgoing line busbar 5 and rear support plate 8 respectively, and outgoing line insulator 6 is connected between the upper portion of outgoing line busbar 5 opposite vertical partition 2 and vertical partition 2.
[0021] Fan 3 is arranged in the pressure relief plate 4 of the top of bus chamber 7 and the pressure relief plate 4 of the top of circuit breaker chamber 1. The louvers 14 of the rear upper door 15, the rear lower door 16 and the front lower door 13 of the cabinet have an area of 0.4 square meters. The side plates 18, the rear support plate 8, the top plate 19 of the rear of the cabinet, the rear support crossbeam 11 and the rear upper door 15 of the cabinet are made of 304 stainless steel.
[0022] In the utility model, the cabinet is divided by vertical partition 2, the front is circuit breaker chamber 1, and the rear is bus chamber 7 and cable chamber 17, wherein bus chamber 7 and cable chamber 17 are separated by rear support plate 8 and horizontal partition 22, circuit breaker is installed in circuit breaker chamber 1, three incoming line ends and three outgoing line ends of circuit breaker are connected with incoming line contact box and outgoing line contact box respectively, incoming line contact box and outgoing line contact box are in bus chamber 7, each incoming line contact box is connected with one incoming line busbar 10, and each outgoing line contact box is connected with three outgoing line busbars 5.
[0023] The rear support cross beam 11 is provided with three rear cross connections fixed with the cabinet body, and each incoming line busbar 10 is provided with an incoming line insulator 9 at the upper, middle and lower positions of the vertical end face of the rear door of the cabinet body, so that each incoming line busbar 10 has three fixing points between the incoming line insulator 9 and the rear support cross beam 11, and more effective fixing points are formed between the incoming line busbar 10 and the rear support cross beam 11, and the bottom of the incoming line busbar 10 is further provided with a support block 12, which is fixedly connected with the vertical partition plate 2 through an incoming line insulator 9, so that one incoming line busbar 10 can be reinforced by at least four fixing points, effectively reducing the vibration of the incoming line busbar 10 and reducing the heat generation of the incoming line busbar 10.
[0024] The wiring end of each outgoing line busbar 5 is fixedly connected with the rear support plate 8 through an outgoing line insulator 6, and the outgoing line busbar 5 is fixedly connected with the vertical partition plate 2 through an outgoing line insulator 6 at the upper part of the end face opposite to the vertical partition plate 2, so that multiple good fixing points are formed between the outgoing line busbar 5 and the intermediate partition plate and the rear support plate 8, respectively, so that the vibration of the outgoing line busbar 5 is effectively reduced, and the heat generation of the outgoing line busbar 5 is reduced.
[0025] The relief plate 4 at the top of the busbar chamber 7 and the relief plate 4 at the top of the circuit breaker chamber 1 are both provided with a fan 3, so that the lower part of the cabinet body can intake air and the upper part of the cabinet body can exhaust air, forming an effective air duct, and the height of the inclined plate is increased after the fan is arranged, thereby improving the heat dissipation effect in the cabinet; the area of the louvers 14 of the rear upper door 15, the rear lower door 16 and the front lower door 13 is expanded to 0.4 square meters, thereby increasing the ventilation volume and further helping to dissipate heat in the cabinet. The two side plates 18, the rear support plate 8, the top plate 19 of the busbar chamber 7, the rear support cross beam 11 and the rear upper door 15 of the cabinet body are made of 304 stainless steel, which can make use of the characteristic that the relative magnetic permeability of 304 stainless steel is close to 1 to better block the magnetic circuit of the entire busbar chamber 7 and the cable chamber 17, and prevent the cabinet body from generating eddy current.
[0026] The utility model will not produce eddy current, avoid the temperature in the cabinet body is too high, reduce the vibration of busbar, reduce the noise, can effectively solve the vibration and heat generation problem in the operation of high-voltage large current cabinet.
[0027] The utility model is not limited to the above-mentioned embodiments, on the basis of the technical scheme of the disclosure, the skilled in the art can make some substitutions and deformations to some technical features according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the utility model.
Claims
1. A 10kV high-current high-voltage cabinet, comprising a cabinet body, the cabinet body being divided into a front and a rear portion by a vertical partition, the rear portion of the cabinet body being provided with a busbar chamber and a cable chamber, the front portion of the cabinet body being provided with a circuit breaker chamber, the circuit breaker chamber being provided with a circuit breaker, the incoming end of the circuit breaker being connected to an incoming busbar via an incoming contact box, and the outgoing end of the circuit breaker being connected to an outgoing busbar via an outgoing contact box, characterized in that: Three incoming line insulators are arranged at the top, middle and bottom on the end face of the incoming line busbar facing the rear door of the cabinet. The two ends of the incoming line insulators are respectively connected to the incoming line busbar and the rear support beam. The rear support beam is set at the rear of the cabinet. A support block is set at the bottom of the incoming line busbar, and the incoming line insulator is connected between the front end of the support block and the vertical partition.
2. A 10kV high current high voltage cabinet according to claim 1, characterized in that: A horizontal partition is arranged between the incoming contact box and the outgoing contact box. The front end of the horizontal partition is connected to the vertical partition, the rear end of the horizontal partition is connected to the lower end of the rear support plate, the upper end of the rear support plate is connected to the top of the cabinet, and an outgoing insulator is connected between the three wiring terminals of the outgoing busbar and the rear support plate respectively. An outgoing insulator is connected between the upper end surface of the outgoing busbar facing the vertical partition and the vertical partition.
3. A 10kV high current high voltage cabinet according to claim 2, characterized in that: Fans are installed in the pressure relief panels on the top of the busbar chamber and the top of the circuit breaker chamber.
4. A 10kV high current high voltage cabinet according to claim 3, characterized in that: The shutter area of the rear upper door, rear lower door and front lower door of the cabinet is 0.4 square meters.
5. The 10kV high current high voltage cabinet according to claim 4, characterized in that: The cabinet's side panels, rear support panels, top panel at the rear of the cabinet, rear support beams and rear upper door are made of 304 stainless steel.