CN219086576U - Prefabricated cabin type box transformer substation with economic operation function - Google Patents
Prefabricated cabin type box transformer substation with economic operation function Download PDFInfo
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- CN219086576U CN219086576U CN202223507847.8U CN202223507847U CN219086576U CN 219086576 U CN219086576 U CN 219086576U CN 202223507847 U CN202223507847 U CN 202223507847U CN 219086576 U CN219086576 U CN 219086576U
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Abstract
The utility model discloses a prefabricated cabin type box transformer with an economic operation function, which comprises a high-voltage switch cabinet device, a high-voltage station transformer device, a low-voltage power distribution cabinet device, a secondary equipment control device, a negative control device and a cabin shell, wherein the high-voltage switch cabinet device comprises a high-voltage incoming line cabinet, a high-voltage metering cabinet and a high-voltage outgoing line cabinet which are symmetrically arranged; the high-voltage station transformer device comprises symmetrically arranged transformers; the low-voltage power distribution cabinet device comprises a low-voltage incoming cabinet, a low-voltage capacitor cabinet, a low-voltage outgoing cabinet and a low-voltage connection cabinet which are symmetrically arranged. The utility model adopts the modularized, standardized and industrialized prefabricated cabin type box transformer, thereby further reducing the loss of the transformer, and improving the service life and the power supply reliability.
Description
Technical Field
The utility model relates to the technical field of power transmission and distribution, in particular to a prefabricated cabin type box transformer substation with an economic operation function.
Background
The box-type transformer substation, which is simply called a box transformer, is an emerging complete power distribution device, and replaces the original civil engineering power distribution room, power distribution station and the like; the high-voltage power receiving, transformer step-down and low-voltage power distribution functions are organically combined and installed in a box body. At present, in the power transmission and application, the box-type transformer substation is widely applied to meet the requirements of urban landscapes, businesses and residents for producing and using electricity.
Along with the rapid development of national economy and society, the energy construction requirements are larger and larger, the construction period is shorter and the power grid engineering quality and technological requirements are higher and higher. The traditional power distribution station house construction mode has large occupied area, large investment, long construction period, low operation automation level, low integration level, difficult after-sales mode rigidification and poor environment coordination, and the traditional power distribution station house construction mode cannot adapt to new construction requirements. The prefabricated cabin is an important embodiment of new technology, new materials and new equipment applied to the intelligent substation, and consists of a prefabricated cabin body, a secondary equipment screen cabinet or a rack, cabin body auxiliary facilities and the like, and the prefabricated cabin is used for completing the works of manufacturing, assembling, wiring, debugging and the like in a factory, is transported to an engineering site as a whole, and is positioned on an installation foundation; the prefabricated cabin and the secondary equipment inside the prefabricated cabin realize the integration of the whole set of secondary equipment by manufacturers, realize industrial processing, reduce site secondary wiring, reduce design, construction, debugging and workload, simplify overhaul and maintenance work, shorten construction period and effectively support rapid construction of a power grid.
In addition, the scale of newly built residential areas in China is generally larger, one area is provided with a plurality of power distribution rooms, and each power distribution room is provided with 2-4 transformers. In the period of 3 to 5 years or even longer after the district is built, the empty rate of the district house is higher, the transformer is in light load operation for a long time, and facilities such as district fire protection, elevators and the like all require double power supplies for power, so that the transformer cannot be manually withdrawn even if the transformer is in light load operation. The data show that the loss of all transformers in China is 3% -10% of the national generated energy and 40% -60% of the loss of the transmission and distribution network.
For a substation room with 2-4 transformers, part of power supply companies adopt manual connection switches to reduce the comprehensive loss of the transformers in the substation room, and a mode of switching off a low-voltage outgoing line switch and a high-voltage incoming line switch of one transformer is adopted to deactivate 1-2 transformers, so that the load transfer diagram of the dual-transformer substation room shown in fig. 1 is formed by two groups of dual-transformers if the load transfer diagram is a four-transformer substation room. However, this mode not only can cause the short-time power failure of user in the switching process, but also because the reason that carries out the power supply through single power in the follow-up operation in-process, when I section generating line loses the electricity, low pressure user load can all have a power failure, has seriously influenced the power supply reliability.
Disclosure of Invention
The utility model aims to: in order to solve the defects in the prior art, the utility model further reduces the transformer loss, improves the operation life and the power supply reliability, and provides a modularized, standardized and industrialized prefabricated cabin type box transformer with an economic operation function.
The technical scheme is as follows: the utility model provides a prefabricated cabin type box transformer with an economic operation function, which comprises a high-voltage switch cabinet device, a high-voltage station transformer device, a low-voltage power distribution cabinet device, a secondary equipment control device, a negative control device and a cabin shell, wherein the high-voltage switch cabinet device consists of two groups of high-voltage incoming line cabinets, a high-voltage metering cabinet and a high-voltage outgoing line cabinet; the high-voltage station transformer device consists of two transformers; the low-voltage power distribution cabinet device consists of two low-voltage wire inlet cabinets, two low-voltage capacitor cabinets, four low-voltage wire outlet cabinets and one low-voltage contact cabinet; the secondary equipment control device comprises a distribution transformer economic operation control system, a transformer substation automation system, a monitoring system and a fire protection system.
The distribution transformer economic operation control system is respectively connected with the remote control and remote signaling contact points of the high-voltage inlet switch, the low-voltage outlet switch and the interconnection switch of the two transformers through cables, and collects the voltage and the current of the low-voltage side of the two transformers; the high-voltage inlet switch, the low-voltage outlet switch and the interconnection switch of the two transformers are controlled to realize the economic operation function.
Preferably, the high-voltage switch cabinet device and the high-voltage station transformer device are used for 10kV.
Preferably, the low-voltage power distribution cabinet device is used for 0.4kV.
Preferably, the transformer is a dry-type transformer of 630kVA or 800kVA specification.
In order to reduce the occupied area and improve the integration level of the box transformer substation, the negative control device is mounted on the inner wall of the cabin shell in a wall-hanging mode.
Furthermore, the distribution transformer economic operation control system has a synchronous closing function for realizing the switching of the operation state of the transformer without power outage, and can be manually operated by a user.
In order to realize control and signal transmission and feedback, the cable adopts a secondary cable.
Further, a base is arranged below the prefabricated cabin type box transformer substation, and a wiring groove is formed in the base.
The beneficial effects are that: compared with the prior art, the utility model has the following remarkable advantages: 1. the prefabricated cabin type box transformer is characterized by modularization, standardization and industrialization, and can realize the prefabrication and production of the whole station factory; the device has the advantages of small investment, small volume, compact structure, no need of building a high-pressure chamber and a control chamber, small occupied area, convenient and flexible deployment, short construction period and high engineering quality; 2. when a user overhauls, the synchronous closing and load transferring functions can be manually realized through the distribution transformer economic operation control system, so that the planned power outage time is effectively reduced, the transformer operation state is switched without power outage, and the inductance of the user is not influenced; when one transformer is in power failure, the load can be automatically transferred to the other transformer, so that the power supply reliability of the distribution transformer under the economic operation is ensured.
Drawings
FIG. 1 is a schematic diagram of a load transfer for a two-transformer substation room;
FIG. 2 is a diagram of the outline structure of the present utility model;
FIG. 3 is a top view of the form construction of the present utility model;
fig. 4 is an electrical schematic of the present utility model.
Detailed Description
The technical scheme of the utility model is further described below with reference to the accompanying drawings.
The utility model provides a prefabricated cabin type box transformer with an economic operation function, which comprises a 10kV switch cabinet device, a 10kV station transformer device, a 0.4kV low-voltage power distribution cabinet device, a secondary equipment control device, a negative control device and a cabin shell, wherein the 10kV switch cabinet device consists of two groups of high-voltage inlet wire cabinets, a high-voltage metering cabinet and a high-voltage outlet wire cabinet; the 10kV station transformer device consists of two 630kVA or 800kVA dry transformers; the 0.4kV low-voltage power distribution cabinet device consists of two low-voltage wire inlet cabinets, two low-voltage capacitor cabinets, 4 low-voltage wire outlet cabinets and one low-voltage contact cabinet; the negative control device is arranged on the inner wall of the cabin shell in a wall-hanging manner; the secondary equipment control device consists of a distribution transformer economic operation control system, a transformer substation automation system, a monitoring system and a fire protection system, and the outline structure is shown in fig. 2 and 3.
The distribution transformer economic operation function is realized by mainly controlling a high-voltage wire inlet switch, a low-voltage wire outlet switch and a contact switch of two transformers through a distribution transformer economic operation control system, an electrical schematic diagram is shown in fig. 3, the distribution transformer economic operation control system is respectively connected with remote control and remote signaling contacts of the high-voltage wire inlet switch, the low-voltage wire outlet switch and the contact switch of the two transformers through secondary cables, and the low-voltage side voltage and the current of the two transformers are collected; a base is arranged below the prefabricated cabin type box transformer substation, and a wiring groove is formed in the base.
In the working process, after the user judges the main transformer low-voltage side load of the section I and the main transformer low-voltage side load of the section II, the connection switch, the high-voltage wire inlet switch and the low-voltage wire outlet switch of the section I and the section II are controlled to be switched on and off by the distribution transformer economic operation control system, so that the ring-closing operation and the line-separating operation of the section I and the section II are realized.
Claims (10)
1. The utility model provides a prefabricated cabin formula case becomes that possesses economic operation function, includes high tension switchgear device, high-voltage station is with changing device, low-voltage power distribution cabinet device, secondary equipment controlling means, load control device and cabin shell, its characterized in that, high tension switchgear device includes high-voltage inlet wire cabinet, high-voltage metering cabinet and the high-voltage outlet wire cabinet of symmetry setting; the high-voltage station transformer device comprises symmetrically arranged transformers; the low-voltage power distribution cabinet device comprises a low-voltage incoming cabinet, a low-voltage capacitor cabinet, a low-voltage outgoing cabinet and a low-voltage contact cabinet which are symmetrically arranged; the secondary equipment control device comprises a distribution transformer economic operation control system and a transformer substation automation system; the distribution transformer economic operation control system is respectively connected with the high-voltage inlet switch, the low-voltage outlet switch and the interconnection switch of the transformers at the two sides.
2. The prefabricated cabin type box transformer substation with the economic operation function according to claim 1, wherein the secondary equipment control device further comprises a monitoring system and a fire protection system.
3. The prefabricated cabin type box transformer substation with the economic operation function according to claim 1, wherein the distribution transformer economic operation control system is connected with remote control and remote signaling contacts of a high-voltage inlet switch, a low-voltage outlet switch and a connecting switch of the two transformers respectively through secondary cables.
4. The prefabricated cabin type box transformer substation with the economic operation function according to claim 1, wherein the high-voltage switch cabinet device and the high-voltage station transformer substation device are used for 10kV, and the low-voltage power distribution cabinet device is used for 0.4kV.
5. The prefabricated cabin type tank transformer substation with the economic operation function according to claim 1, wherein the transformer is a dry type transformer with the specification of 630kVA or 800 kVA.
6. The prefabricated cabin type tank transformer substation with the economic operation function according to claim 1, wherein the negative control device is installed on the inner wall of the cabin shell in a wall-hanging manner.
7. The prefabricated cabin type box transformer substation with the economic operation function according to claim 1, wherein the number of the transformer, the low-voltage wire inlet cabinets and the low-voltage capacitor cabinets is two, the number of the low-voltage wire outlet cabinets is four, and the number of the low-voltage contact cabinets is one.
8. The prefabricated cabin type box transformer substation with the economic operation function according to claim 1, wherein the distribution transformer economic operation control system is provided with a synchronous closing function for realizing the switching of the operation state of the transformer without power outage, and the control system can be manually operated by a user.
9. The prefabricated cabin type tank transformer substation with the economic operation function according to claim 1, wherein the distribution transformer economic operation control system is provided with a load transfer function.
10. The prefabricated cabin type box transformer substation with the economic operation function according to claim 1, wherein a base is arranged below the prefabricated cabin type box transformer substation, and a wiring groove is formed in the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223507847.8U CN219086576U (en) | 2022-12-27 | 2022-12-27 | Prefabricated cabin type box transformer substation with economic operation function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223507847.8U CN219086576U (en) | 2022-12-27 | 2022-12-27 | Prefabricated cabin type box transformer substation with economic operation function |
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| CN219086576U true CN219086576U (en) | 2023-05-26 |
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| CN202223507847.8U Active CN219086576U (en) | 2022-12-27 | 2022-12-27 | Prefabricated cabin type box transformer substation with economic operation function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116231483A (en) * | 2022-12-27 | 2023-06-06 | 江苏宏源电气有限责任公司 | Prefabricated cabin type box transformer substation with economic operation function |
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- 2022-12-27 CN CN202223507847.8U patent/CN219086576U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116231483A (en) * | 2022-12-27 | 2023-06-06 | 江苏宏源电气有限责任公司 | Prefabricated cabin type box transformer substation with economic operation function |
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