Electrical Engineering › Section M · Transformers and polyphase systems › Topic M.5
Nameplate data and transformer types
A transformer's nameplate tells you how much it can safely carry and at what voltages and frequency. Behind that plate sits one of many designs: power, audio, pulse, autotransformer, centre-tapped or multi-winding, each suited to its job.
In this topic
- Reading a nameplate
- Why the rating is in volt-amperes
- Worked example: rated currents and overload
- Why frequency is on the plate
- Types and construction
- The autotransformer
- Worked example: boosting a sagging supply
- Centre taps and the split-phase supply
- Several secondaries at once
- Common mistakes to avoid
- Key takeaways
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