CN210927467U - 12-pulse rectifier for box-type substation - Google Patents
12-pulse rectifier for box-type substation Download PDFInfo
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- CN210927467U CN210927467U CN201921736070.8U CN201921736070U CN210927467U CN 210927467 U CN210927467 U CN 210927467U CN 201921736070 U CN201921736070 U CN 201921736070U CN 210927467 U CN210927467 U CN 210927467U
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Abstract
The utility model belongs to the technical field of box-type substation power supply system, and relates to a 12-pulse rectifier for a box-type substation, which comprises a cabinet body and a three-phase six-pulse rectifier bridge A, B connected in parallel, wherein the three-phase six-pulse rectifier bridge A is arranged above the cabinet body, and the three-phase six-pulse rectifier bridge B is arranged below the cabinet body; the three-phase six-pulse wave rectifier bridge A, B comprises 12 diodes, 12 block-shaped radiators and 6 groups of strip-shaped radiators respectively; alternating current bus bars L1, L2, L3, L4, L5 and L6 of the rectifier are concentrated on an incoming line at the lower part of the cabinet body, and direct current output bus bars L + and L-are concentrated on an outgoing line at the side of the cabinet body. This rectifier is directly qualified for next round of competitions from the side of the cabinet body with direct current output copper bar, and direct cabinet are connected, are particularly suitable for in the box-type electric substation that the space is little, directly are connected with the direct current cabinet in the electric substation, save the usage space, and need not use the external connection line, the cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of box electric substation power supply system, a pulse wave rectifier is related to, concretely relates to 12 pulse wave rectifiers for box electric substation.
Background
In the conventional substation, a 12-pulse rectifier is formed by connecting two three-phase six-pulse rectifier bridges in parallel, wherein one three-phase rectifier bridge is connected to a secondary side star winding of a rectifier transformer, and the other three-phase rectifier bridge is connected to a secondary side delta winding of the rectifier transformer. The two three-phase rectifier bridges are respectively arranged above and below the screen cabinet, and the alternating current bus bars L1-L6 and the direct current output bus bars L + and L-are concentrated on the inlet and outlet wires below the screen cabinet, namely the cable inlet and outlet modes of the rectifier are downward inlet and downward outlet. According to the mode of the output cable, the output copper bar is output downwards, and is only suitable for being connected through an underground passage and is not suitable for the environment with narrow space.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a 12 pulse wave rectifiers for box electric substation, direct current output copper bar is qualified for the next round of competitions for the side, can directly link the direct current cabinet, has saved the space greatly.
The utility model aims at solving through the following technical scheme:
the 12-pulse rectifier for the box-type substation comprises a cabinet body and a three-phase six-pulse rectifier bridge A, B connected in parallel, wherein the three-phase six-pulse rectifier bridge A is installed above the inside of the cabinet body, and the three-phase six-pulse rectifier bridge B is installed below the inside of the cabinet body; the three-phase six-pulse wave rectifier bridge A, B comprises 12 diodes, 12 block-shaped radiators and 6 groups of strip-shaped radiators respectively; alternating current bus bars L1, L2, L3, L4, L5 and L6 of the rectifier are concentrated on an incoming line at the lower part of the cabinet body, and direct current output bus bars L + and L-of the rectifier are concentrated on an outgoing line at the side of the cabinet body.
Further, the three-phase six-pulse-wave rectifier bridge A is connected to a secondary side star winding of the rectifier transformer, and the three-phase six-pulse-wave rectifier bridge B is connected to a secondary side delta winding of the rectifier transformer.
Furthermore, the cabinet body is formed by connecting seven component units, namely a front door, a rear door, sealing covers positioned on two sides of the cabinet body, a bottom plate, a top cover and a frame, wherein the component units are connected through bolts without welding.
Further, the lower part of the front door and the rear door of the cabinet body are provided with a plurality of air inlets which are distributed in a grid shape, and the upper parts of the air inlets are provided with heat dissipation holes.
Further, three groups of common-cathode bridge arms of the three-phase six-pulse-wave rectifier bridge A are positioned above three groups of common-cathode bridge arms of the three-phase six-pulse-wave rectifier bridge B, and three groups of common-anode bridge arms of the three-phase six-pulse-wave rectifier bridge A are positioned above three groups of common-anode bridge arms of the three-phase six-pulse-wave rectifier bridge B; the front door of the cabinet body is opened, the three groups of common cathode bridge arms of the rectifier bridge A are placed on the upper half part in the cabinet body, the three groups of common cathode bridge arms of the rectifier bridge B are placed on the lower half part in the cabinet body, the three groups of common anode bridge arms of the rectifier bridge A are placed on the upper half part, and the three groups of common anode bridge arms of the rectifier bridge B are placed on the lower half part in the cabinet body. The common cathode of the upper three-phase six-pulse-wave rectifier bridge A and the common cathode of the lower three-phase six-pulse-wave rectifier bridge B are connected in parallel through three groups of long-strip-shaped radiators positioned at the front door of the cabinet body to form an output which is a positive electrode, and the common anode of the upper three-phase six-pulse-wave rectifier bridge A and the common anode of the lower three-phase six-pulse-wave rectifier bridge B are connected in parallel through three groups of long-strip-shaped radiators positioned at the rear door of the cabinet body to form an output which is a negative electrode.
Furthermore, the diode in each single bridge arm is also connected with a fast fuse, one end of the fast fuse is connected to the alternating current busbar, and the other end of the fast fuse is connected with the massive radiator through a copper bar.
Further, the cabinet body adopts a GGD metal screen cabinet, and the size of the cabinet body is that the width is 1200mm ×, the depth is 1200mm ×, and the height is 2300 mm.
Furthermore, the cabinet body is processed by electrogalvanizing, and the outer surface of the cabinet body is sintered by electrostatic plastic powder spraying high-temperature furnace heat, so that the cabinet body has strong corrosion resistance.
Furthermore, a rectangular hole for a direct current output copper bar line to penetrate out is formed in the right side of the cabinet body, and the direct current output bus bars L + and L-are concentrated on the right side of the cabinet body to be led out.
Further, the protection grade of the cabinet body is IP20, and solids with the diameter of more than 12mm can be prevented from entering the cabinet body.
Compared with the prior art, the utility model provides a technical scheme has following beneficial effect: the direct-current output copper bar is directly led out from the side of the cabinet body and is directly connected with the direct-current cabinet, so that the direct-current output copper bar can be applied to certain specific working condition environments, for example, the direct-current output copper bar is particularly suitable for a box-type substation with small space and is directly connected with the direct-current cabinet in the substation, and the use space is saved; meanwhile, the rectifier is directly connected with the direct current cabinet through the copper bar, an external connecting line is not needed, and cost is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a back door of a 12-pulse rectifier for a box-type substation according to the present invention;
fig. 2 is a schematic structural view of the 12-pulse rectifier cabinet for a box-type substation provided by the present invention with a front door removed;
fig. 3 is a schematic structural view of a right side cover of a cabinet body of a 12-pulse rectifier for a box-type substation according to the present invention;
fig. 4 is a structural diagram of the input/output of a 12-pulse rectifier for a box-type substation according to the present invention.
Wherein: 1. a cabinet body; 2. an air inlet; 3. heat dissipation holes; 4. a rectangular hole.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the following claims.
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and the embodiments.
Examples
Referring to fig. 1-4, the utility model provides a 12-pulse rectifier for box-type substation, which comprises a cabinet body 1, a three-phase six-pulse rectifier bridge A, B connected in parallel, wherein the three-phase six-pulse rectifier bridge a is installed above the cabinet body 1, and the three-phase six-pulse rectifier bridge B is installed below the cabinet body 1; the three-phase six-pulse wave rectifier bridge A, B comprises 12 diodes, 12 block-shaped radiators and 6 groups of strip-shaped radiators respectively; alternating current bus bars L1, L2, L3, L4, L5 and L6 of the rectifier are concentrated on an incoming line at the lower part of the cabinet body 1, and direct current output bus bars L + and L-are concentrated on a lateral outgoing line of the cabinet body 1.
Further, the three-phase six-pulse-wave rectifier bridge A is connected to the secondary side star winding of the rectifier transformer, and the three-phase six-pulse-wave rectifier bridge B is connected to the secondary side delta winding of the rectifier transformer.
Further, the cabinet body 1 is formed by connecting seven constituent units, namely a front door, a rear door, sealing covers, a bottom plate, a top cover and a frame, which are positioned at two sides of the cabinet body 1, and the constituent units are connected by bolts without welding.
Further, the lower parts of the front door and the rear door of the cabinet body 1 are provided with a plurality of air inlets 2, the air inlets 2 are distributed in a grid shape, and the upper parts of the air inlets are provided with heat dissipation holes 3.
Further, three groups of common-cathode bridge arms of the three-phase six-pulse-wave rectifier bridge A are positioned above three groups of common-cathode bridge arms of the three-phase six-pulse-wave rectifier bridge B, and three groups of common-anode bridge arms of the three-phase six-pulse-wave rectifier bridge A are positioned above three groups of common-anode bridge arms of the three-phase six-pulse-wave rectifier bridge B; the front door of the cabinet body 1 is opened, the three groups of common cathode bridge arms of the rectifier bridge A are placed on the upper half part in the cabinet body 1, the three groups of common cathode bridge arms of the rectifier bridge B are placed on the lower half part, the three groups of common anode bridge arms of the rectifier bridge A are placed on the upper half part, and the three groups of common anode bridge arms of the rectifier bridge B are placed on the lower half part when the rear door of the cabinet body 1 is opened. The common cathode of the upper three-phase six-pulse-wave rectifier bridge A and the common cathode of the lower three-phase six-pulse-wave rectifier bridge B are connected in parallel through three groups of long-strip-shaped radiators positioned at the front door of the cabinet body 1 to form an output as a positive electrode, and the common anode of the upper three-phase six-pulse-wave rectifier bridge A and the common anode of the lower three-phase six-pulse-wave rectifier bridge B are connected in parallel through three groups of long-strip-shaped radiators positioned at the rear door of the cabinet body 1 to form an output as a negative electrode.
Furthermore, the diode in each bridge arm is also connected with a fast fuse, one end of the fast fuse is connected to the alternating current busbar, and the other end of the fast fuse is connected with the massive radiator through a copper bar.
Further, the cabinet body 1 adopts a GGD metal screen cabinet, and the size of the cabinet body 1 is 1200mm in width × and 1200mm in depth × and 2300mm in height.
Further, the cabinet body 1 is processed by electrogalvanizing, and the outer surface of the cabinet body 1 is sintered by electrostatic plastic powder spraying high-temperature furnace heat, so that the cabinet is extremely strong in corrosion resistance.
Further, a rectangular hole 4 for allowing a direct current output copper flat cable to penetrate out is formed in the right side of the cabinet body 1, and the direct current output busbars L + and L-are concentrated on the right side of the cabinet body 1 to be outgoing.
Further, the cabinet body 1 has a protection grade of IP20, and can prevent solids with the diameter of more than 12mm from entering.
To sum up, the utility model provides a 12 pulse wave rectifiers for box electric substation, its specific operating parameter is: the rated power is 2000kW, the rated alternating current voltage 1180V, the rated direct current output voltage is 1500V, the rated direct current no-load voltage is 1650V, and the highest direct current output voltage is 1800V. The 12-pulse rectification for the box type substationThe direct-current side output copper bar directly extends out of the right side of the cabinet body and is directly connected with the direct-current cabinet, and the design requirements of a box type substation are completely met; in space, the device can be applied to certain specific working condition environments, for example, the device is particularly suitable for a box type substation with small space, and is directly connected with a direct current cabinet in the substation, so that the use space is saved; economically, the structural design can be directly connected with the direct current cabinet without using 6 x 400mm2The cable of (2) is connected in a rotating mode, so that the cost is reduced, the economic benefit is improved, and the application performance effect is good.
The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
It is to be understood that the present invention is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (10)
1. A12-pulse rectifier for a box-type substation comprises a cabinet body (1) and a three-phase six-pulse rectifier bridge A, B connected in parallel, and is characterized in that the three-phase six-pulse rectifier bridge A is installed above the cabinet body (1), and the three-phase six-pulse rectifier bridge B is installed below the cabinet body (1); the three-phase six-pulse wave rectifier bridge A, B comprises 12 diodes, 12 block-shaped radiators and 6 groups of strip-shaped radiators respectively; alternating current bus bars L1, L2, L3, L4, L5 and L6 of the rectifier are concentrated on an incoming line at the lower part of the cabinet body (1), and direct current output bus bars L + and L-of the rectifier are concentrated on an outgoing line at the side of the cabinet body (1).
2. The 12-pulse rectifier for a box substation of claim 1, wherein the three-phase six-pulse rectifier bridge a is connected to the secondary side star winding of the rectifier transformer, and the three-phase six-pulse rectifier bridge B is connected to the secondary side delta winding of the rectifier transformer.
3. The 12-pulse rectifier for the box-type substation according to claim 1, wherein the cabinet body (1) is formed by connecting seven component units, namely a front door, a rear door, a cover, a bottom plate, a top cover and a frame, which are positioned at two sides of the cabinet body (1), and the component units are connected through bolts.
4. The 12-pulse rectifier for box-type substation according to claim 3, wherein the cabinet body (1) is provided with air inlet holes (2) at the lower parts of the front door and the rear door and heat dissipation holes (3) at the upper parts.
5. The 12-pulse rectifier for a box-type substation according to claim 1, wherein three sets of common-cathode bridge arms of the three-phase six-pulse rectifier bridge A are located above three sets of common-cathode bridge arms of the three-phase six-pulse rectifier bridge B, and three sets of common-anode bridge arms of the three-phase six-pulse rectifier bridge A are located above three sets of common-anode bridge arms of the three-phase six-pulse rectifier bridge B; the common cathode of the upper three-phase six-pulse-wave rectifier bridge A and the common cathode of the lower three-phase six-pulse-wave rectifier bridge B are connected in parallel through three groups of long-strip-shaped radiators positioned at the front door of the cabinet body (1) to form an output as a positive electrode, and the common anode of the upper three-phase six-pulse-wave rectifier bridge A and the common anode of the lower three-phase six-pulse-wave rectifier bridge B are connected in parallel through three groups of long-strip-shaped radiators positioned at the rear door of the cabinet body (1) to form an output as a negative electrode.
6. The 12-pulse rectifier for a box-type substation according to claim 5, wherein the diode in each bridge arm is further connected with a fast fuse, one end of the fast fuse is connected to the AC busbar, and the other end of the fast fuse is connected with the block-shaped heat sink through a copper bar.
7. 12-pulse rectifier for a box-type substation according to claim 1, characterized in that said cabinet (1) is a GGD metal screen cabinet.
8. The 12-pulse rectifier for box-type substation according to claim 1, wherein the cabinet body (1) is electro-galvanized, and the outer surface of the cabinet body (1) is subjected to electrostatic plastic powder injection high-temperature furnace thermal sintering.
9. The 12-pulse rectifier for the box-type substation according to claim 1, wherein a rectangular hole (4) for allowing a direct current output copper flat cable to pass through is formed in the right side of the cabinet body (1), and the direct current output bus bars L + and L-are concentrated on an outgoing line in the right side of the cabinet body (1).
10. 12-pulse rectifier for a box-type substation according to any one of claims 1 to 9, characterized in that the protection class of said cabinet (1) is IP 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921736070.8U CN210927467U (en) | 2019-10-16 | 2019-10-16 | 12-pulse rectifier for box-type substation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921736070.8U CN210927467U (en) | 2019-10-16 | 2019-10-16 | 12-pulse rectifier for box-type substation |
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| CN210927467U true CN210927467U (en) | 2020-07-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113179030A (en) * | 2020-12-18 | 2021-07-27 | 西安中车永电电气有限公司 | Silicon rectifying device for heavy-duty plateau rail car |
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2019
- 2019-10-16 CN CN201921736070.8U patent/CN210927467U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113179030A (en) * | 2020-12-18 | 2021-07-27 | 西安中车永电电气有限公司 | Silicon rectifying device for heavy-duty plateau rail car |
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