Configuration choices
- Panel function
- Incoming, outgoing, metering and bus-coupling functions.
- Requested construction
- Fixed or withdrawable construction and cable access.
- Protection information
- Relays, CTs, VTs, earthing and interlocks.
Panel function • Requested construction • Protection information
Medium-Voltage Switchgear
Medium-voltage switchgear provides switching, isolation, metering and protection for incoming supplies and outgoing feeders.
Panel functionIncoming, outgoing, metering and bus-coupling functions.
Requested constructionFixed or withdrawable construction and cable access.
Protection informationRelays, CTs, VTs, earthing and interlocks.
Project informationSingle-line diagram, protection study and instrument-transformer schedule.
Choose the arrangement below and add the details you have.
01 Technical data
Configuration & project information
Choose the arrangement below and add the details you have.
Information to provide
- Electrical requirements
- System voltage, frequency, current and short-time withstand duty.
- Project information
- Single-line diagram, protection study and instrument-transformer schedule.
- Installation
- Cable terminations, room layout and maintenance clearances. Include the owner specification, network requirements and actual temperature, dust and installation conditions.
02 Application engineering
Applications
Transformer substations
Medium-voltage incoming and transformer feeder panels provide switching, isolation and protection between the supply network and transformers. The single-line diagram defines the panel functions and busbar arrangement. System voltage, fault level, CT/VT requirements and relay coordination must be established together with cable access and maintenance space.
Industrial distribution networks
Plants with several transformer substations use medium-voltage feeders to distribute power across the site. A radial or ring arrangement needs a defined switching philosophy, interlocks and protection coordination. Cable characteristics, earthing arrangements and operating procedures guide panel selection; remote indication and control depend on the site's supervision requirements.
Buildings and infrastructure
Campuses, transport facilities and large commercial developments use medium-voltage switchgear upstream of their low-voltage distribution. Transformer capacity and the required supply arrangement determine feeder functions and metering. Room access, cable termination space, ventilation and pressure-relief provisions must be assessed against the selected equipment and installation design.
03 Select your configuration
Select your configuration
All fields are optional. Choose one or more options as indicated; use Other for a custom requirement.
Requested construction
Select one option.
Supply voltage requested (kV)
Enter details
Panel function
Select all that apply.
Protection information
Select all that apply.
Additional requirements
Auxiliary supply (V AC / DC)
Enter details
Short-circuit duty (kA / s)
Enter details
Enclosure requirement
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Component preference
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Supply frequency
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Current requirement (A)
Enter details
Electrical values entered here are requested requirements. Equipment ratings must match the selected model and its technical datasheet.
Confirm model ratings and installation limits from manufacturer documents.
04 Construction and options
Technical options
05 Applicable standards and requirements
Standards
- Project specification
- Technical references: IEC 62271-1 / IEC 62271-200. Confirm the applicable part and edition against the intended use and the proposed assembly documents.
- Rating schedule
- Confirm model ratings and installation limits from manufacturer documents.
- Verification documents
- Request verification and inspection records for the exact configuration.
- Supply scope
- Specify equipment, components, engineering, software and documents separately; the quotation confirms included items.
06 Manufacturing & Projects
Manufacturing & Projects
Project Documents
Project Documents
Documents you can send
Send existing drawings or lists. You can start an inquiry without a complete document package.
- Single-line diagram
- Relay schedule
- CT / VT schedule
Documents to request
Ask for the following documents for the selected equipment. Document availability and delivery stage are agreed with the quotation.
- Supply scope and component schedule
- General arrangement and wiring diagrams
- Model datasheets and verification records
07 Decision support
Frequently asked questions
What information is needed for a quotation?
Send the following project information: System voltage, frequency, current and short-time withstand duty. Single-line diagram, protection study and instrument-transformer schedule.
Is circuit-breaker switchgear the same as an RMU?
Their switching, protection and operating functions can differ. Select the arrangement from the network diagram, protection duties and maintenance requirements.
Which protection information is needed?
Provide fault levels, protection coordination, relay functions, CT/VT data and earthing requirements for each circuit.
Let’s discuss your project
Request a quote
Send the following project information: System voltage, frequency, current and short-time withstand duty. Single-line diagram, protection study and instrument-transformer schedule. Cable terminations, room layout and maintenance clearances.
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