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FAQs: Creating Intelligent Symbols for Transformers
In V4.5, the intelligent transformer symbol was introduced into PTW. This allows the symbol to display the winding configuration as entered in the component editor. Creating a new transformer symbol (or editing an existing one) is as easy as with any other type of symbol using PTW's Symbol Generator.
Unlike most other symbols, transformer symbols have multiple layers:
Unlike most other symbols, transformer symbols have multiple layers:
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V4.5.1.0 and later |
V5.0.1.2 and later |
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Layer 0 |
Main Symbol | Main Symbol | |
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Layer 1 |
Primary: delta |
Primary: delta |
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Layer 2 |
Primary: star (unearthed) |
Primary: star (unearthed) |
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| Layer 3 |
Primary: star-earth |
Primary: star (solid earth) |
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| Layer 4 | - |
Primary: star (NER earth) |
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| Layer 11 |
Secondary: delta |
Secondary: delta |
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| Layer 12 |
Secondary: star (unearthed) |
Secondary: star (unearthed) |
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| Layer 13 |
Secondary: star-earth |
Secondary: star (solid earth) |
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| Layer 14 | - |
Secondary: star (NER earth) |
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| Layer 21 |
Tertiary: delta |
Tertiary: delta |
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| Layer 22 |
Tertiary: star (unearthed) |
Tertiary: star (unearthed) |
3-winding |
| Layer 23 |
Tertiary: star-earth |
Tertiary: star (solid earth) |
transformers only |
| Layer 24 | - |
Tertiary: star (NER earth) |
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Layer 0 is always shown on the SLD, together with two or three other layers to illustrate the winding configuration entered in the component editor.
You can switch between active layers in the Symbol Generator program using the menu option Symbol>>Set Active Layer. For more information on changing symbols in PTW, click here.
You can switch between active layers in the Symbol Generator program using the menu option Symbol>>Set Active Layer. For more information on changing symbols in PTW, click here.