Transformer Types

Transformer Types

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Transformer Types

9 May 2023

Transformers, machines that play a crucial role in the electricity supply chain from generation to reaching consumers, are collectively referred to as “transformers.” Transformer types are categorized based on their intended uses. There are many different types designed for various purposes, ranging from safe measurements to secure current transmission and even reducing it to a specific level. In addition to transformers with step-up and step-down capabilities, there are various shaping methods, including power transformers, distribution transformers, current transformers, voltage transformers, single-phase transformers, auto-transformers, and isolation transformers, each with distinct characteristics.

Types of Transformers

TRANSMISSION TRANSFORMERS:

  • These are high-power transformers used as voltage boosters to transmit very high voltages over long distances.

SUBSTATION TRANSFORMERS:

  • They are used to lower the voltage to medium levels.

DISTRIBUTION TRANSFORMERS:

  • These transformers are used to further reduce medium-voltage electricity for distribution.

POWER TRANSFORMERS:

  • Power transformers find applications in various electronic circuit designs and applications.

ISOLATION (INSULATION) TRANSFORMERS:

  • They are used for isolating direct current. They also provide electrical insulation between the primary and secondary windings. If the applied voltage to the primary winding contains both direct current and alternating current components, the secondary voltage consists only of the alternating current component.

AUTO TRANSFORMERS:

  • Auto-transformers are transformers in which the primary and secondary windings are electrically connected. They are generally used to provide adjustable voltage in low-power applications.

VOLTAGE RATINGS FOR TRANSFORMERS:

  • Low Voltage: 0-1 kV
  • Medium Voltage: 1-3-5-10-20-25-30 kV
  • High Voltage: 45-60-110 kV
  • Very High Voltage: 150-220-380-400 kV

TYPES OF CORES FOR TRANSFORMERS:

  • Core Type
  • Shell Type
  • Distributed Type
  • Ferrite Core

TYPES OF COOLING FOR TRANSFORMERS:

  • Oil-Immersed Transformers
  • Dry-Type Transformers

TYPES OF USE FOR TRANSFORMERS:

  • Feeder Transformer
  • Isolation Transformer
  • Specific Frequency Transformer

Line Transformer

  • Impedance Transformer
  • Auto Transformer
  • Pulse Transformer

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