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Place symbols and draw wires

A single-line diagram is made of electrical symbols (sources, busbars, switches, transformers, loads) connected by electrical wires. YTCC follows the wires to color the diagram, so a wire must end on a terminal, a busbar or another wire; a wire that only looks connected is not.

Before you begin​

  • A page is open in the screen editor. See A tour of the screen editor.
  • The project's Electrification module is on: click an empty place on the canvas and, in PROPERTIES under PROJECT, tick Modules › Electrification. A new project has it off; without it, WIDGETS has no Electrification, Electrical wire and Electrical simulation, and the server does not run the topology service. After changing it, save and restart the project.

Steps​

1. Find a symbol​

In WIDGETS, click Electrification. The symbol list opens with eight categories, from Switching & cells to Control & auxiliary. Type in Search symbols… to filter: the search finds the name (upper and lower case and Turkish letters do not matter), the ANSI number such as 52 or 89, the IEC 61850 logical node such as XCBR, the ISA tag and the sector.

Electrification symbol list filtered with 52: circuit breaker, draw-out circuit breaker and auto-recloser.

Hover over a symbol to see its name, its standard designations and a short description.

2. Place the symbol​

Click the symbol and draw a rectangle on the page, or drag it onto the canvas. Symbols can be rotated and mirrored; their labels stay readable. Give each symbol a short Label in PROPERTIES, for example Q10.

A newly placed circuit breaker elec_1 selected, with Symbol Circuit breaker and the empty Label row in PROPERTIES.

A Busbar is stretched to the length you need; its terminals run along its whole length, so wires can end anywhere on it.

3. Draw the wires​

In WIDGETS, click Electrical wire, then:

  1. Click a symbol terminal, a busbar or another wire: the wire starts there. A snap mark shows the terminals nearby.
  2. Click empty places for corners. Hold Ctrl to draw horizontally or vertically, Shift for 45°.
  3. Click a terminal, a busbar or a wire to finish. Enter or a double-click also finishes, Esc cancels.

A wire that ends on another wire joins it with a T connection.

A selected electrical wire between breaker Q10 and Load1, with both ends bound to terminals.

4. Change a wire​

The ends of a wire follow the object they are bound to: move a symbol and its wires come with it. On a selected wire:

  • drag a corner to move it; a bound end is shown in yellow;
  • click + in the middle of a segment to add a corner; double-click a corner or press Delete to remove it;
  • drag an end onto another terminal to connect it there.
The selected wire between Q10 and Load1 with its corner and end handles.

5. Check the diagram​

The ELECTRICAL CHECK section of the Explorer, shown for a page with electrical objects, lists the findings of the open page: errors (a source symbol without a source, an invalid user symbol), warnings (unconnected terminals, loose wire ends, areas no source can reach, off-page connectors without a partner) and information (a position not bound to a signal). Click a row to select the object.

ELECTRICAL CHECK in the Explorer with seven findings: the positions of Q11, Q10, Q21, Q20, Q31, Q30 and Q38 are not bound to a signal.

Fix the errors and warnings before you run the project; the information rows disappear as you bind the signals.

Result​

The diagram is colored as soon as a source is set: see Voltage levels, sources and palette. Next, bind the switches and measurements to signals.