Transformers are usually provided with a rating plate of weatherproof material situated in a visible position. All entries on the plate are usually indelibly marked. According to the IEC 60076-1 standard for transformers, the following are the minimum information required for a transformer name plate. If you are involved in specifying transformers, purchasing transformers or work with transformers, here is a checklist for typical transformer name plate information:
| Oil Filled Transformers Name Plate Information: |
| Kind of transformer |
| Number of the applied standard |
| Manufacturer’s name |
| Manufacturer’s serial number |
| Year of manufacture |
| Number of phases |
| Rated power (kVA or MVA) |
| Rated frequency (Hz) |
| Basic insulation levels |
| Rated voltage and tapping range (V or kV) |
| Rated currents (A or kA) |
| Connection symbol |
| Short-circuit impedance (%) |
| Type of cooling |
| Total mass |
| Mass of insulating oil |
| Additional Information Required for Dry-Type Transformers |
| Temperature class |
| Climatic class |
| Environmental class |
| Fire behavior class |
| Degree of protection (IP class) |
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