IEEE C57.12.20-2011
IEEE Standard for Overhead-Type Distribution Transformers 500 kVA and Smaller: High Voltage, 34 500 V and Below; Low Voltage, 7970/13 800Y V and Below
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| Fecha edición: |
2011-09-20
Anulada
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| Fecha cancelación: | 2011-09-20 |
| Idiomas disponibles: | Inglés |
| Keywords: | distribution transformer|IEEE C57.12.20|mineral oil|overhead|transformer |
| Scope: | Revision Standard - Superseded. Certain electrical, dimensional, and mechanical characteristics and safety features of single- and three-phase, 60 Hz, mineral-oil-immersed, self-cooled, overhead-type distribution transformers 500 kVA and smaller, high voltages 34 500 V and below, and low voltages 7970/13 800Y V and below are covered in this standard. |
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Anulaciones Normas |
Anula a IEEE C57.12.20-2005 |










