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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