Single Line Diagram of MDB
This electrical single-line diagram presents an MDB labeled “MDB-M” in the control room. The visible schematic includes a high-voltage incoming line, lightning arrester, drop-out fuse, transformer, main circuit breaker, voltage and current metering, a three-phase busbar, neutral and grounding connections, and outgoing feeders F1 through F6.
What the Drawing Includes
- High-voltage incoming line labeled “HV_LINE 22KV, 3Φ3W”
- Lightning arrester and drop-out fuse symbols
- Transformer symbol with a visible 250 kVA rating label
- MDB main circuit breaker and protective device annotations
- Voltage selector and voltmeter symbols
- Current transformer or ammeter circuit with an ammeter symbol
- Three-phase busbar with feeder points F1, F2, F3, F4, F5 and F6
- Outgoing connections labeled DB-W, LP, ALP2, ALP1, SPARE and SPACE
- Neutral and grounding connections, including a visible 50G grounding label
- Green dashed outline labeled “MDB-M” and “CONTROL ROOM”
- Magenta drawing title reading “SINGLE LINE DIAGRAM OF ‘MDB-M’”
Who Can Use It
- Electrical designers reviewing an MDB single-line arrangement
- CAD users referencing electrical schematic presentation
- Engineering and construction teams coordinating visible feeder and protection information
- Students and trainees studying basic single-line diagram symbols
How to Use This CAD File
- Review the preview to identify the incoming supply, transformer, main protection, metering and outgoing feeders.
- Use the feeder labels and visible circuit annotations as references during electrical coordination.
- Open the DWG in compatible CAD software for further review and editing.
- Confirm all ratings, connections and design requirements against the project documentation before use.
Download Information
The download is provided as a DWG file named EE-SINGLE-LINE-MDB.dwg. The listed file size is 45,264 bytes. The original CAD file has not been inspected, so this description is based on the preview image and supplied metadata.