CN217469130U - Prepackage type, modular high pressure alternating current-direct current switch controlgear - Google Patents
Prepackage type, modular high pressure alternating current-direct current switch controlgear Download PDFInfo
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- CN217469130U CN217469130U CN202221473021.1U CN202221473021U CN217469130U CN 217469130 U CN217469130 U CN 217469130U CN 202221473021 U CN202221473021 U CN 202221473021U CN 217469130 U CN217469130 U CN 217469130U
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Abstract
The utility model provides a preassembled and modularized high-voltage AC/DC switching control device, which is formed by modularly assembling a DC inlet cabinet, an AC inlet cabinet and an AC/DC outlet cabinet by adopting prefabricated cabin bodies; the direct current inlet cabinet is used for connecting direct current; the alternating current inlet cabinet is used for connecting alternating current; the direct current inlet cabinet, the alternating current inlet cabinet and the alternating current outlet cabinet comprise alternating current and direct current switching devices; the alternating current and direct current switching device is used for connecting the direct current incoming line cabinet with the alternating current and direct current outgoing line cabinet through a three-phase bus or connecting the alternating current incoming line cabinet with the alternating current and direct current outgoing line cabinet through a three-phase bus, so that the alternating current and direct current outgoing line cabinet is connected to direct current or alternating current. The utility model discloses can shorten production cycle about 50%, reduce area about 30%, practice thrift about 30% of cost, the influence of reduction site operation to the environment.
Description
Technical Field
The utility model relates to a high pressure alternating current-direct current switching controlgear technical field particularly, relates to a prepackage type, modular high pressure alternating current-direct current switching controlgear.
Background
In order to ensure the reliability of power utilization on the island in the east-south coastal region, two dual-power-supply power supply systems with different properties of direct current 20kV and alternating current 40.5kV are adopted. Due to the particularity of the two power supply systems: high-voltage electrical components cannot satisfy the characteristics of both power supplies simultaneously: and arranging a set of high-voltage direct-current control equipment and a set of alternating-current control equipment as required. But the construction and investment costs are higher, the required floor area is larger, the floor area is limited by sites and environments, and two sets of control equipment are not allowed to be used. In addition, the offshore reef is constructed according to the conventional infrastructure, and the local material of the power distribution room is difficult to obtain.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a prepackage type, modular high pressure alternating current-direct current switching controlgear to solve the problem that the above-mentioned exists.
The utility model provides a preassembled and modularized high-voltage AC/DC switching control device, which is formed by modularly assembling a DC inlet cabinet, an AC inlet cabinet and an AC/DC outlet cabinet by adopting prefabricated cabin bodies;
the direct current inlet cabinet is used for connecting direct current;
the alternating current inlet cabinet is used for connecting alternating current;
the direct current inlet cabinet, the alternating current inlet cabinet and the alternating current outlet cabinet comprise alternating current and direct current switching devices; the alternating current and direct current switching device is used for connecting the direct current incoming line cabinet with the alternating current and direct current outgoing line cabinet through a three-phase bus or connecting the alternating current incoming line cabinet with the alternating current and direct current outgoing line cabinet through a three-phase bus, so that the alternating current and direct current outgoing line cabinet is connected to direct current or alternating current.
In some embodiments, the dc inlet cabinet, ac inlet cabinet, and ac outlet cabinet each include a three-phase-sequence terminal; and the three-phase sequence binding post is used for connecting the direct current incoming cabinet, the alternating current incoming cabinet and the alternating current outgoing cabinet with a three-phase bus.
In some embodiments, the three-phase sequence connection post is arranged as follows:
the three-phase sequence binding post in the direct current inlet cabinet comprises a direct current positive pole, a direct current neutral pole and a direct current negative pole;
the three-phase sequence wiring terminal in the AC inlet cabinet comprises an AC phase A, an AC phase B and an AC phase C;
the three-phase sequence terminal in the AC-DC outlet cabinet comprises: the first binding post, the second binding post and the third binding post; when the direct current incoming cabinet is switched to be connected with the alternating current and direct current outgoing cabinet through a three-phase bus, the first binding post is connected with a direct current positive pole in the direct current incoming cabinet, the second binding post is connected with a direct current neutral pole in the direct current incoming cabinet, and the third binding post is connected with a direct current negative pole in the direct current incoming cabinet; when the alternating current inlet cabinet and the alternating current outlet cabinet are switched to be connected through a three-phase bus, the first binding post is connected with an alternating current A in the alternating current inlet cabinet, the second binding post is connected with an alternating current B in the alternating current inlet cabinet, and the third binding post is connected with an alternating current C in the alternating current inlet cabinet.
In some embodiments, current sensors are disposed in the dc inlet cabinet, the ac inlet cabinet and the ac outlet cabinet;
two current sensors of the direct current inlet cabinet are respectively connected with a direct current positive electrode and a direct current negative electrode and then grounded;
one current sensor of the alternating current incoming line cabinet is connected with an alternating current A phase, an alternating current B phase and an alternating current C phase and then grounded;
and three current sensors in the AC/DC outlet cabinet are respectively connected with the first binding post, the second binding post and the third binding post and then grounded.
In some embodiments, the dc inlet cabinet, the ac inlet cabinet and the ac/dc outlet cabinet are all armored movable-type switch cabinets.
In some embodiments, the dc inlet cabinet, the ac inlet cabinet, and the ac outlet cabinet further each include a secondary mini bus room, an instrument room, a breaker room, a main bus room, and a cable room.
In some embodiments, the dc inlet cabinet is a 20kV dc inlet cabinet.
In some embodiments, the AC inlet cabinet is a 40.5Kv/50Hz AC inlet cabinet.
In some embodiments, the number of the AC/DC outlet cabinets is N, N is more than or equal to 1, and N is an integer.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the high-voltage alternating current and direct current switching control equipment of the utility model separates the incoming line cabinets of the direct current power supply and the alternating current power supply and realizes the switching of the alternating current and direct current outgoing line cabinet to the two power supplies through the alternating current and direct current switching device; and the equipment use field does not need to build a power distribution room, but adopts the prefabricated cabin body to carry out modular assembly, so that a series of (N) outlet cabinets at the rear end can be shared, and the equipment can be put into use only by simply splicing and installing on the field, thereby not only meeting the requirements of all electrical functions, but also reducing the occupied area and the equipment investment, further shortening the production period by about 50 percent, reducing the occupied area by about 30 percent, saving the cost by about 30 percent and weakening the influence of field construction on the environment.
2. The utility model discloses can solve 20kV direct current system's positive negative pole and 40.5kV alternating current system's ABC three-phase "sharing primary bus" problem.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive efforts.
Fig. 1 is a partial electrical primary wiring diagram of a preassembled and modularized high-voltage ac/dc switching control device in an embodiment of the present invention.
Fig. 2 is the utility model discloses a part, three-phase sequence terminal orthographic view schematic diagram that the high pressure alternating current-direct current of prepackage type, modular switches controlgear.
Fig. 3 is the utility model discloses prepackage type, modular high pressure alternating current-direct current switching controlgear's part, three-phase sequence terminal looks sideways at the schematic diagram promptly.
Fig. 4 is a wiring diagram of the current sensor according to the embodiment of the present invention.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
The embodiment provides a preassembled and modularized high-voltage alternating current and direct current switching control device, which is formed by modularly assembling a direct current incoming cabinet, an alternating current incoming cabinet and an alternating current outgoing cabinet by adopting prefabricated cabin bodies;
the direct current inlet cabinet is used for connecting direct current;
the alternating current inlet wire cabinet is used for connecting alternating current;
the direct current inlet cabinet, the alternating current inlet cabinet and the alternating current outlet cabinet comprise alternating current and direct current switching devices; the alternating current and direct current switching device is used for connecting the direct current incoming line cabinet with the alternating current and direct current outgoing line cabinet through a three-phase bus or connecting the alternating current incoming line cabinet with the alternating current and direct current outgoing line cabinet through a three-phase bus, so that the alternating current and direct current outgoing line cabinet is connected to direct current or alternating current.
As shown in fig. 1, which is a diagram of a local electrical primary connection of the high-voltage ac/dc switching control device, a switch cabinet numbered 1-1U is a dc incoming line cabinet, a switch cabinet numbered 1-2U is an ac incoming line cabinet, and a switch cabinet numbered 1-3U is an ac/dc outgoing line cabinet. In this embodiment:
the direct current inlet cabinet is a 20kV direct current inlet cabinet;
the alternating current inlet cabinet is a 40.5Kv/50Hz alternating current inlet cabinet;
the AC-DC outlet cabinet is an AC-DC outlet cabinet of AC40.5kV/DC20 kV. According to the requirement, the number of the alternating current and direct current outlet line cabinets is N, N is more than or equal to 1, and N is an integer.
Therefore, the high-voltage alternating current and direct current switching control equipment of the utility model separates the incoming line cabinets of the direct current power supply and the alternating current power supply and realizes the switching of the alternating current and direct current outgoing line cabinet to the two power supplies through the alternating current and direct current switching device; and the equipment use field does not need to build a power distribution room, but adopts the prefabricated cabin body to carry out modular assembly, so that a series of (N) outlet cabinets at the rear end can be shared, and the equipment can be put into use only by simply splicing and installing on the field, thereby not only meeting the requirements of all electrical functions, but also reducing the occupied area and the equipment investment, further shortening the production period by about 50 percent, reducing the occupied area by about 30 percent, saving the cost by about 30 percent and weakening the influence of field construction on the environment.
Furthermore, in order to facilitate modular assembly of the prefabricated cabin, the direct-current incoming cabinet, the alternating-current incoming cabinet and the alternating-current outgoing cabinet are armored movable switch cabinets. Generally, the dc inlet cabinet, the ac inlet cabinet and the ac outlet cabinet also include a secondary small bus chamber, an instrument chamber, a breaker chamber, a main bus chamber and a cable chamber, which are common components of the switch cabinet and are not described herein again.
As shown in fig. 2 and 3, the dc inlet cabinet, the ac inlet cabinet and the ac outlet cabinet each include a three-phase sequence terminal; and the three-phase sequence binding post is used for connecting the direct current incoming cabinet, the alternating current incoming cabinet and the alternating current outgoing cabinet with a three-phase bus. Further, the three-phase sequence connection post is arranged as follows:
the three-phase sequence binding post in the direct current inlet cabinet comprises a direct current positive pole, a direct current neutral pole and a direct current negative pole;
the three-phase sequence wiring terminal in the AC inlet cabinet comprises an AC phase A, an AC phase B and an AC phase C;
the three-phase sequence terminal in the AC-DC outlet cabinet comprises: the first binding post, the second binding post and the third binding post; when the direct current incoming cabinet is switched to be connected with the alternating current and direct current outgoing cabinet through a three-phase bus, the first binding post is connected with a direct current positive pole in the direct current incoming cabinet, the second binding post is connected with a direct current neutral pole in the direct current incoming cabinet, and the third binding post is connected with a direct current negative pole in the direct current incoming cabinet; when the alternating current inlet cabinet and the alternating current outlet cabinet are switched to be connected through a three-phase bus, the first binding post is connected with an alternating current A in the alternating current inlet cabinet, the second binding post is connected with an alternating current B in the alternating current inlet cabinet, and the third binding post is connected with an alternating current C in the alternating current inlet cabinet.
Therefore, when the direct current incoming line cabinet is switched to be connected with the alternating current-direct current outgoing line cabinet through the three-phase bus, the first binding post is used as a direct current electrode of the alternating current-direct current outgoing line cabinet, the second binding post is used as a direct current neutral pole of the alternating current-direct current outgoing line cabinet, and the third binding post is used as a direct current negative pole of the alternating current-direct current outgoing line cabinet; when the alternating current-direct current outlet cabinet is switched to be connected with the alternating current-direct current outlet cabinet through the three-phase bus, the first binding post serves as an alternating current A phase of the alternating current-direct current outlet cabinet, the second binding post serves as an alternating current B phase of the alternating current-direct current outlet cabinet, and the third binding post serves as an alternating current C phase of the alternating current-direct current outlet cabinet. Therefore, the problem that the anode and the cathode of a 20kV direct current system and the ABC three-phase shared primary bus of a 40.5kV alternating current system can be solved.
As shown in fig. 4, the utility model discloses can realize the alternating current-direct current sharing current sensor. Specifically, current sensors are arranged in the direct current incoming line cabinet, the alternating current incoming line cabinet and the alternating current outgoing line cabinet;
two current sensors of the direct current inlet cabinet are respectively connected with a direct current positive electrode and a direct current negative electrode and then grounded;
one current sensor of the alternating current incoming line cabinet is connected with an alternating current A phase, an alternating current B phase and an alternating current C phase and then grounded;
and three current sensors in the AC/DC outlet cabinet are respectively connected with the first binding post, the second binding post and the third binding post and then grounded.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A pre-assembled and modularized high-voltage alternating current and direct current switching control device is characterized in that the high-voltage alternating current and direct current switching control device is formed by modularly assembling a direct current incoming cabinet, an alternating current incoming cabinet and an alternating current outgoing cabinet by adopting prefabricated cabin bodies;
the direct current inlet cabinet is used for connecting direct current;
the alternating current inlet cabinet is used for connecting alternating current;
the direct current inlet cabinet, the alternating current inlet cabinet and the alternating current outlet cabinet comprise alternating current and direct current switching devices; the alternating current and direct current switching device is used for connecting the direct current incoming line cabinet with the alternating current and direct current outgoing line cabinet through a three-phase bus or connecting the alternating current incoming line cabinet with the alternating current and direct current outgoing line cabinet through a three-phase bus, so that the alternating current and direct current outgoing line cabinet is connected to direct current or alternating current.
2. The pre-assembled modular high-voltage ac-dc switching control device according to claim 1, wherein the dc inlet cabinet, the ac inlet cabinet and the ac outlet cabinet each comprise a three-phase-sequence terminal; and the three-phase sequence binding post is used for connecting the direct current incoming cabinet, the alternating current incoming cabinet and the alternating current outgoing cabinet with a three-phase bus.
3. The pre-assembled modular high-voltage ac/dc switching control device of claim 2, wherein the three-phase sequence connection post is arranged as follows:
the three-phase sequence binding post in the direct current inlet cabinet comprises a direct current positive pole, a direct current neutral pole and a direct current negative pole;
the three-phase sequence wiring terminal in the AC inlet cabinet comprises an AC phase A, an AC phase B and an AC phase C;
the three-phase sequence terminal in the AC-DC outlet cabinet comprises: the first binding post, the second binding post and the third binding post; when the direct current incoming cabinet is switched to be connected with the alternating current and direct current outgoing cabinet through a three-phase bus, the first binding post is connected with a direct current positive pole in the direct current incoming cabinet, the second binding post is connected with a direct current neutral pole in the direct current incoming cabinet, and the third binding post is connected with a direct current negative pole in the direct current incoming cabinet; when the alternating current inlet cabinet and the alternating current outlet cabinet are switched to be connected through a three-phase bus, the first binding post is connected with an alternating current A in the alternating current inlet cabinet, the second binding post is connected with an alternating current B in the alternating current inlet cabinet, and the third binding post is connected with an alternating current C in the alternating current inlet cabinet.
4. The pre-assembled modular high-voltage AC/DC switching control device according to claim 3, wherein the DC inlet cabinet, the AC inlet cabinet and the AC outlet cabinet are provided with current sensors;
two current sensors of the direct current inlet cabinet are respectively connected with a direct current positive electrode and a direct current negative electrode and then grounded;
one current sensor of the alternating current incoming line cabinet is connected with an alternating current A phase, an alternating current B phase and an alternating current C phase and then grounded;
and three current sensors in the AC/DC outlet cabinet are respectively connected with the first binding post, the second binding post and the third binding post and then grounded.
5. The pre-assembled modular high-voltage AC/DC switching control device according to claim 1, wherein the DC inlet cabinet, the AC inlet cabinet and the AC/DC outlet cabinet are all armored removable switch cabinets.
6. The pre-assembled modular high-voltage ac/dc switching control device according to claim 1, wherein the dc inlet cabinet, the ac inlet cabinet and the ac outlet cabinet each further comprise a secondary small bus chamber, an instrument chamber, a breaker chamber, a main bus chamber, and a cable chamber.
7. The pre-assembled modular high-voltage AC/DC switching control device according to claim 1, wherein the DC inlet cabinet is a 20kV DC inlet cabinet.
8. The pre-assembled modular high-voltage AC/DC switching control device according to claim 1, wherein the AC inlet cabinet is a 40.5Kv/50Hz AC inlet cabinet.
9. The pre-assembled modular high-voltage AC/DC switching control device according to claim 1, wherein the number of AC/DC outlet cabinets is N, N is not less than 1, and N is an integer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221473021.1U CN217469130U (en) | 2022-06-14 | 2022-06-14 | Prepackage type, modular high pressure alternating current-direct current switch controlgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221473021.1U CN217469130U (en) | 2022-06-14 | 2022-06-14 | Prepackage type, modular high pressure alternating current-direct current switch controlgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217469130U true CN217469130U (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221473021.1U Active CN217469130U (en) | 2022-06-14 | 2022-06-14 | Prepackage type, modular high pressure alternating current-direct current switch controlgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217469130U (en) |
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2022
- 2022-06-14 CN CN202221473021.1U patent/CN217469130U/en active Active
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