CN213717256U - Medium-voltage automatic change-over switch equipment - Google Patents
Medium-voltage automatic change-over switch equipment Download PDFInfo
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- CN213717256U CN213717256U CN202022639543.1U CN202022639543U CN213717256U CN 213717256 U CN213717256 U CN 213717256U CN 202022639543 U CN202022639543 U CN 202022639543U CN 213717256 U CN213717256 U CN 213717256U
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- power supply
- supply inlet
- standby power
- voltage automatic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The utility model discloses a medium-voltage automatic transfer switch device, belonging to the technical field of distribution equipment, comprising a common power supply inlet cabinet, a standby power supply inlet cabinet and a control cabinet which are arranged in parallel in sequence; the incoming line power supply of the common power supply incoming line cabinet is mains supply; the inlet wire power supply in the standby power inlet wire cabinet is a generator power supply or stable commercial power; the cabinet bodies of the common power supply inlet cabinet and the standby power supply inlet cabinet are respectively provided with primary equipment and secondary equipment, and the cabinet body of the control cabinet is internally provided with an automatic conversion controller and a control cabinet monitoring instrument. The medium-voltage automatic change-over switch equipment can ensure that a power supply system can be continuously supplied with power, has high control precision and high safety level, and is convenient to overhaul.
Description
Technical Field
The utility model belongs to the technical field of distribution equipment, concretely relates to middling pressure automatic transfer switchgear.
Background
With the development and application of new technologies such as artificial intelligence, cloud computing and big data, the demand of the current society for electricity is higher and higher, specifically embodied in that the electricity load grade is higher, the electricity power is ever larger, the electricity utilization range is expanded, and in these application occasions, medium-voltage switching is needed to solve the electricity utilization problem.
However, the traditional medium-voltage transfer switch equipment is usually supplied by a single power supply, so that the conversion efficiency is low; and the safety protection equipment in the equipment has low safety protection grade, so the application requirements of special occasions are difficult to meet.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that wants to solve is that the middling pressure automatic transfer switchgear among the prior art exists conversion efficiency low, and the low grade technical problem of safety protection level.
In order to solve the technical problem, the utility model discloses a medium-voltage automatic transfer switch device, which comprises a common power supply inlet cabinet, a standby power supply inlet cabinet and a control cabinet which are arranged in parallel in sequence;
the incoming line power supply of the common power supply incoming line cabinet is mains supply;
the inlet wire power supply in the standby power supply inlet wire cabinet is a generator power supply, and in addition, stable commercial power can be used.
The cabinet bodies of the common power supply inlet cabinet and the standby power supply inlet cabinet are respectively provided with a primary device and a secondary device,
the primary equipment comprises a vacuum circuit breaker, an electric handcart, a mechanical interlock, an electrical interlock, a zinc oxide arrester, a grounding switch and a five-prevention interlock; the secondary equipment comprises a fuse, a voltage transformer, a current transformer, a live display, an anti-condensation heater and a zero sequence current transformer;
an automatic conversion controller and a control cabinet monitoring instrument are arranged in the cabinet body of the control cabinet.
The common power supply inlet cabinet and the standby power supply inlet cabinet cannot work at the same time, and the common power supply inlet cabinet works normally under the normal condition to provide commercial power for a power supply system; when the common power supply inlet cabinet fails, the standby power supply inlet cabinet is started, and the failed common power supply inlet cabinet can be isolated independently and maintained without influencing the power supply of the standby power supply. Similarly, when the standby power supply inlet cabinet breaks down, the standby power supply inlet cabinet can be isolated independently and maintained, and the power supply of the common power supply is not influenced.
The common power supply inlet cabinet and the standby power supply inlet cabinet respectively comprise a cabinet body five-prevention interlocking which is operated safely, so that the safety protection grade of the cabinet body is improved.
Furthermore, a display screen is arranged on the cabinet body of the control cabinet.
Furthermore, the display screen is an intelligent control touch display screen.
Furthermore, alarm lamps are arranged on the cabinet bodies of the common power supply inlet cabinet and the standby power supply inlet cabinet.
Furthermore, the cabinet bodies of the common power supply inlet cabinet and the standby power supply inlet cabinet are respectively provided with a monitoring instrument.
Furthermore, the shell materials of the common power supply inlet cabinet, the standby power supply inlet cabinet and the control cabinet are all aluminum-zinc-plated steel plates.
Furthermore, the sizes of the common power supply inlet cabinet, the standby power supply inlet cabinet and the control cabinet are the same.
In the common power supply inlet cabinet and the standby power supply inlet cabinet, a bus system in the cabinets is connected by adopting copper bars, so that the current-carrying capacity is large, the temperature rise is small, and the short-circuit current resistance is high; the grounding switch can be an ESW (electronic safety wire) quick grounding switch, can bear and act on closed short-circuit fault current, is operated outside the cabinet, and has electrical interlocking functions of mechanical operation interlocking, live locking and the like, so that the personal safety of operators can be ensured; the signal of the current transformer can provide relay protection for the comprehensive protection device, and in a common power supply inlet cabinet and a standby power supply inlet cabinet, the voltage transformers are arranged on the inlet side, so that the maintenance is convenient.
The control cabinet belongs to an intelligent control system, integrates all functions of power supply monitoring, logic judgment, condition locking, action output, accident alarm, event recording, communication networking and the like, can manage power supply output, guarantee power supply quality and improve power supply continuity, and is a core unit in medium-voltage automatic transfer switch equipment. The intelligent control system takes voltage judgment as a main basis, and has the function of voltage PT broken line locking protection, thereby avoiding misjudgment and ensuring more accurate action. In addition, the control cabinet is the cabinet body that sets up alone, can independently go into the line and be qualified for the next round of competitions, and the configuration scheme of the internal cable of cabinet is nimble, and convenient to overhaul.
Compared with the prior art, the utility model discloses a middling pressure automatic transfer switch equipment has following advantage:
(1) meanwhile, a common power supply inlet cabinet and a standby power supply inlet cabinet are arranged, and double power supply protection can be realized, so that a power supply system can be ensured to be continuously supplied with power.
(2) The intelligent control system judges and starts automatic switching through voltage, and the control accuracy is high.
(3) The common power supply inlet cabinet, the standby power supply inlet cabinet and the control cabinet in the medium-voltage automatic transfer switch equipment are independently arranged in parallel, and the equipment is convenient to overhaul.
(4) The medium-voltage automatic transfer switch equipment has high safety protection level, and can ensure the personal safety of operators in a reliable manner.
Drawings
FIG. 1: the three-dimensional structure of the medium-voltage automatic transfer switching equipment is schematic.
Description of reference numerals: 1-a common power supply inlet cabinet; 2-standby power supply inlet wire cabinet; 3-a control cabinet; 11-monitoring instrument of the common power supply inlet cabinet; 21-standby power supply inlet cabinet monitoring instrument; 31-control cabinet monitoring instrument; 32-smart control touch screen; 13-handle.
Detailed Description
The technical solution of the present invention will be explained in detail by the following embodiments.
As shown in fig. 1, a schematic perspective view of a medium voltage automatic transfer switching apparatus is provided, the medium voltage automatic transfer switching apparatus includes a common power inlet cabinet 1, a standby power inlet cabinet 2 and a control cabinet 3 arranged in parallel,
wherein, the inlet wire power supply of the common power inlet wire cabinet 1 is commercial power; the inlet wire power supply in the standby power inlet wire cabinet 2 is a generator power supply and can also be stable commercial power.
Primary equipment and secondary equipment are arranged in the cabinet bodies of the common power supply inlet cabinet 1 and the standby power supply inlet cabinet 2; the primary equipment comprises a vacuum circuit breaker, an electric handcart, a mechanical interlock, an electrical interlock, a zinc oxide arrester, a grounding switch and a five-prevention interlock; the secondary equipment comprises a fuse, a voltage transformer, a current transformer, a live display, an anti-condensation heater and a zero sequence current transformer.
An automatic conversion controller and a control cabinet monitoring instrument 31 are arranged in the cabinet body of the control cabinet 3. In addition, be equipped with intelligent control touch-sensitive screen 32 on the cabinet body of switch board.
In order to remind users of electricity safety in time, alarm lamps are arranged on the cabinet bodies of the common power supply inlet cabinet 1 and the standby power supply inlet cabinet 2.
A common power supply inlet cabinet monitoring instrument 11 is arranged on the cabinet body of the common power supply inlet cabinet 1, and a standby power supply inlet cabinet monitoring instrument 21 is arranged on the cabinet body of the standby power supply inlet cabinet 2.
In the aspect of the material, the cabinet body shell material of power supply inlet wire cabinet 1 commonly used, stand-by power supply inlet wire cabinet 2 and switch board 3 is the aluminized zinc steel sheet, is made by CNC lathe processing to form through the dual equipment of bending, the precision is high and intensity is high. Adopt double-deck metal sheet to keep apart between the interval of the cabinet body shell of power supply inlet wire cabinet 1 commonly used, stand-by power supply inlet wire cabinet 2 and switch board 3, consequently can form 4 mm's air bed, the influence of reducible trouble when electric arc trouble can put into use and normal operating fast after the maintenance resumes.
In addition, for convenience of installation and attractiveness, the sizes of the common power supply inlet cabinet 1, the standby power supply inlet cabinet 2 and the control cabinet 3 are the same, and the three cabinets can be installed together in parallel.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. A medium voltage automatic transfer switching apparatus characterized by: the system comprises a common power supply inlet cabinet, a standby power supply inlet cabinet and a control cabinet which are sequentially arranged in parallel;
the incoming line power supply of the common power supply incoming line cabinet is mains supply;
an incoming line power supply in the standby power supply incoming line cabinet is a generator power supply;
the cabinet bodies of the common power supply inlet cabinet and the standby power supply inlet cabinet are respectively provided with a primary device and a secondary device,
the primary equipment comprises a vacuum circuit breaker, an electric handcart, a mechanical interlock, an electrical interlock, a zinc oxide arrester, a grounding switch and a five-prevention interlock; the secondary equipment comprises a fuse, a voltage transformer, a current transformer, a live display, an anti-condensation heater and a zero sequence current transformer;
an automatic conversion controller and a control cabinet monitoring instrument are arranged in the cabinet body of the control cabinet.
2. The medium voltage automatic transfer switching apparatus of claim 1, wherein: and a display screen is arranged on the cabinet body of the control cabinet.
3. The medium voltage automatic transfer switching apparatus of claim 2, wherein: the display screen is an intelligent control touch display screen.
4. The medium voltage automatic transfer switching apparatus of claim 1, wherein: and alarm lamps are arranged on the cabinet bodies of the common power supply inlet cabinet and the standby power supply inlet cabinet.
5. The medium voltage automatic transfer switching apparatus of claim 1, wherein: and the cabinet bodies of the common power supply inlet cabinet and the standby power supply inlet cabinet are respectively provided with a monitoring instrument.
6. The medium voltage automatic transfer switching apparatus of claim 1, wherein: the shell materials of the common power supply inlet cabinet, the standby power supply inlet cabinet and the cabinet body of the control cabinet are all aluminum-zinc-plated steel plates.
7. The medium voltage automatic transfer switching apparatus of claim 1, wherein: the sizes of the common power supply inlet cabinet, the standby power supply inlet cabinet and the control cabinet are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022639543.1U CN213717256U (en) | 2020-11-16 | 2020-11-16 | Medium-voltage automatic change-over switch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022639543.1U CN213717256U (en) | 2020-11-16 | 2020-11-16 | Medium-voltage automatic change-over switch equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213717256U true CN213717256U (en) | 2021-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022639543.1U Active CN213717256U (en) | 2020-11-16 | 2020-11-16 | Medium-voltage automatic change-over switch equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213717256U (en) |
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2020
- 2020-11-16 CN CN202022639543.1U patent/CN213717256U/en active Active
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