Overview
The intelligent switchgear (outdoor ring main unit) adopts advanced technology. It installs and debugs 12/24kV switch cabinets, circuit breakers, load switches, current and voltage transformers, 12/24kV power PT, switchgear FTU, RTU, communication control terminal (CCU), 12/24kV metering and automatic meter reading, USP power supply, and indicating instruments into a movable, sealed, and moisture-proof stainless steel cabinet.
In this way the integration of primary and secondary systems in the urban distribution network and the modularization of assembly are realized, the construction period is shortened, and the reliability of urban power grid operation is greatly improved.
Key Features
- Integrated primary and secondary systems — the integration of primary and secondary systems in the urban distribution network is realized in a single cabinet.
- Modular assembly — the modularization of assembly is realized, which shortens the construction period.
- Movable, sealed stainless steel cabinet — all equipment is installed and debugged into a movable, sealed and moisture-proof stainless steel cabinet.
- Switchgear and breakers — 12/24kV switch cabinets, circuit breakers and load switches are installed and debugged as part of the station.
- Instrument transformers and PT — current and voltage transformers and 12/24kV power PT are included.
- Automation and communication — switchgear FTU, RTU and communication control terminal (CCU) are integrated.
- Metering and AMR — 12/24kV metering and automatic meter reading are included.
- Auxiliary supply and indications — UPS power supply and indicating instruments are fitted inside the cabinet.
- Improved grid reliability — the reliability of urban power grid operation is greatly improved.
Technical Specifications
| Product type | Outdoor box-type switching station (intelligent outdoor ring main unit) |
|---|---|
| Voltage class | 12/24kV |
| Enclosure | Movable, sealed, moisture-proof stainless steel cabinet |
| Switchgear | 12/24kV switch cabinets, installed and debugged |
| Switching devices | Circuit breakers, load switches |
| Instrument transformers | Current and voltage transformers |
| Power PT | 12/24kV power PT |
| Automation | Switchgear FTU, RTU, communication control terminal (CCU) |
| Metering | 12/24kV metering and automatic meter reading |
| Auxiliary supply | UPS power supply |
| Indicating | Indicating instruments |
| Installation state | Installed and debugged before delivery |
| Design objective | Primary and secondary system integration, modular assembly, shortened construction period, improved grid reliability |
Applications
- Urban distribution networks — integration of primary and secondary systems in the urban distribution network.
- Outdoor switching stations — outdoor installations where a sealed, moisture-proof enclosure is needed.
- Projects with short construction windows — modular assembly shortens the construction period.
- Automated distribution schemes — where FTU, RTU, CCU, metering and automatic meter reading are required.
- Urban power grid reliability programmes — installations aiming to improve the reliability of urban power grid operation.
Installation Conditions
- The station is an outdoor unit, supplied as a movable, sealed and moisture-proof stainless steel cabinet.
- The equipment — 12/24kV switch cabinets, circuit breakers, load switches, instrument transformers, power PT, FTU, RTU, CCU, metering and indicating instruments — is installed and debugged before delivery, so site work is limited to positioning and connections.
- Allow access for the movable cabinet to be positioned, and for the automatic meter reading and communication equipment to be connected.
- Confirm the voltage class — 12kV or 24kV — before installation, as the station covers both.
How to Select
- The voltage class required — 12kV or 24kV.
- The switchgear and switching device configuration, including circuit breakers and load switches.
- Which instrument transformers and power PT are needed.
- Which automation functions are required — FTU, RTU and/or communication control terminal (CCU).
- Whether 12/24kV metering and automatic meter reading are to be included.
- The auxiliary supply and indicating instruments needed for the scheme.
FAQ
What equipment is integrated in the switching station?
It installs and debugs 12/24kV switch cabinets, circuit breakers, load switches, current and voltage transformers, 12/24kV power PT, switchgear FTU, RTU, communication control terminal (CCU), 12/24kV metering and automatic meter reading, USP power supply, and indicating instruments.
What kind of cabinet is used?
The equipment is installed into a movable, sealed, and moisture-proof stainless steel cabinet.
What does the integrated design achieve?
It realizes the integration of primary and secondary systems in the urban distribution network and the modularization of assembly, shortens the construction period, and greatly improves the reliability of urban power grid operation.
Which voltage class is supported?
The station works with 12/24kV switch cabinets, breakers, load switches, instrument transformers, power PT and metering.
Is the equipment tested before delivery?
The equipment is installed and debugged into the cabinet, and the design concept is built around modular assembly to shorten the construction period.
Where is the switching station used?
It is used in urban distribution networks as an outdoor ring main unit and switching station, particularly where automated distribution and shorter construction periods are required.
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