Feeder Link — Single Line Diagram

FL‑SLD MV Network Visualization

A high‑level visualization technique + interactive web application that reveals feeder interconnections, meshing, loops, and source diversification across complex medium‑voltage distribution networks.

Designed for utilities Planning & reliability City / zone‑scale networks
One‑glance topologySee meshing and loops instantly.
Source claritySymbols show primary substation origin.
Interactive viewerZoom, search, filter, export.
Report‑readyExport PDF / images for studies.

The Problem with Traditional Utility SLDs

As MV networks become highly meshed, conventional feeder‑by‑feeder SLDs (with dense secondary substations and PMTs) are essential for operations — but at city or zone scale they become difficult to read and nearly impossible to use for topology understanding.

Why it breaks at city scale

  • Drawings become crowded and unreadable.
  • Feeder‑to‑feeder interconnections are buried in detail.
  • Loops and meshing level cannot be assessed quickly.
  • Source diversification across areas is unclear.

What engineers actually need

  • A bird’s‑eye view of feeder topology.
  • Clear visibility of interconnections and loops.
  • Instant understanding of how complex the network is.
  • Communicable visuals for planning and stakeholders.

What is FL‑SLD?

FL‑SLD (Feeder Link Single Line Diagram) is a topology‑first MV visualization technique. It intentionally removes low‑level clutter so you can understand the entire network in seconds.

FL‑SLD includes

  • MV feeders
  • Feeder interconnections and loops
  • Primary substation sources
  • Source diversification across the network

FL‑SLD excludes

  • Secondary substations
  • PMTs / RMUs
  • Load‑level equipment clutter

Result: clean, readable, and decision‑ready network visibility.

FL‑SLD vs Traditional SLDs

FL‑SLD complements traditional diagrams — it does not replace them. It adds a strategic view for meshed networks.

Traditional Utility SLD FL‑SLD
Feeder‑by‑feeder drawings, heavy details (SS, PMTs). Entire city / zone view focused on topology.
Hard to read when networks are meshed. Designed for complex interconnections and loops.
Source origin often hidden within clutter. Feeder symbols indicate primary substation source (color/shape).
Operational focus. Strategic planning & reliability focus.

Interactive FL‑SLD Web Application

FL‑SLD is delivered through a dedicated interactive web viewer — enabling fast exploration of the entire MV network.

Core capabilities

  • Zoom and pan the complete network smoothly.
  • Search feeders by name or number.
  • Filter by primary substation and view only selected areas.
  • Show directly interconnected feeders to understand local meshing.

Optional enhancements

  • Display feeder load inside feeder symbol (with name/number).
  • Custom symbol coding (shape + color) by source primary substation.
  • Export any view as PDF or high‑resolution image.

Tip: Add load display only where it supports planning decisions — keep topology readable.

Sample FL‑SLD Project

Use the live sample to experience zoom, search, and filtering.

Live Viewer
Interactive demo

The visualization sample section.

Data Submission & Deliverables

Submit your existing feeder SLDs and the primary substation–feeder list. We produce the FL‑SLD and deliver it through the web viewer, with exportable outputs.

What you provide

  • Existing utility SLDs for all feeders (grouped per primary substation).
  • List of primary substations and their related feeder names/numbers.
  • Optional: feeder load data (if you want load shown inside symbols).

What you receive

  • Complete FL‑SLD MV network visualization (city/zone scale).
  • Access to interactive web‑based viewer (zoom/search/filter).
  • Clear visibility of meshing, loops, and source diversification.
  • Exportable PDF and high‑resolution images.

Use Cases

FL‑SLD supports both technical studies and executive communication — especially when networks are highly meshed.

  • MV planning and reinforcement studies
  • Reliability and contingency analysis
  • Network modernization programs
  • Executive and stakeholder presentations
  • Fast understanding of complex urban networks
  • Source diversification review by area / loop

Request FL‑SLD for Your City / Zone

Send your scope and requirements. You’ll receive guidance on secure data transfer and the recommended input format.

View Live Sample

Notes: Your data is sent securely via Formspree. After we receive your request, we will agree on a secure method for transferring large engineering files.