10 Different Types of Transformers

Power Transformer: These are typically large transformers used in power generation and transmission to step up or step down voltage levels.
[Search for "Power Transformer" on an image search engine]
Distribution Transformer: These transformers are used in local power distribution networks to reduce the high voltage of the distribution lines to the level used by residential and commercial consumers.
[Search for "Distribution Transformer" on an image search engine]
Instrument Transformer (Current Transformer - CT): Used to measure high alternating current by producing a proportional lower current for metering and protection devices.
[Search for "Current Transformer" or "CT" on an image search engine]
Instrument Transformer (Potential Transformer - PT) / Voltage Transformer (VT): Used to measure high voltage by producing a proportional lower voltage for metering and protection devices.
[Search for "Potential Transformer" or "Voltage Transformer" or "PT" or "VT" on an image search engine]
Autotransformer: A transformer with only one winding, where part of the winding is common to both the primary and secondary circuits. They are smaller and lighter than two-winding transformers for the same VA rating but do not provide electrical isolation.
[Search for "Autotransformer" on an image search engine]
Isolation Transformer: Designed to provide galvanic isolation between the primary and secondary circuits, preventing direct current flow and providing safety from electrical shock. They typically have a 1:1 turns ratio.
[Search for "Isolation Transformer" on an image search engine]
Toroidal Transformer: These transformers use a toroidal (doughnut-shaped) core, which offers advantages like lower magnetic leakage and higher efficiency compared to traditional laminated core transformers.
[Search for "Toroidal Transformer" on an image search engine]
Rectifier Transformer: Specifically designed to supply power to rectifier circuits, often used in DC power supplies. They may have multiple secondary windings to achieve the desired DC output characteristics.
[Search for "Rectifier Transformer" on an image search engine]
Audio Transformer: Used in audio circuits for impedance matching, voltage amplification, or isolation between different stages. They are designed to operate within the audio frequency range.
[Search for "Audio Transformer" on an image search engine]
Pulse Transformer: Designed to transmit electrical pulses with minimal distortion. They are used in various applications like triggering thyristors, isolating gate drives, and in some types of power supplies.
[Search for "Pulse Transformer" on an image search engine]

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