Instrument Transformers Applications & Types

Instrument Transformers Application

Instrument Transformers Current transformer and voltage transformer measuring instrument transformers are designed to operate at low current and low voltage. Safety is also a reason for not connecting test instruments to sources operating at high voltage. An instrument transformer reduces high voltages and currents to safe values. Instrument transformers perform two functions. It serves as …

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Transformer Construction and Types of Cores

Transformer Construction

Basic Transformer Construction A transformer consists of two coils mounted in fixed positions relative to each other. One coil is supplied by an alternating current. As the current alternates, the magnetic field it produces also alternates. This alternating field induces an alternating current in the second coil, which supplies a load. A simple transformer construction consists …

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Transformer Losses and Efficiency

Efficiency of Transformer & Losses

Transformers have high efficiencies, especially the larger sizes operating at 50 to 100% of full load. However, they are not perfect. Some losses occur in all transformers. Transformer losses are divided into two types Copper losses Core losses Copper loss Copper loss is the loss of power caused by the resistance of the copper windings. …

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