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A transformer is one of the simplest electrical devices available today. It transfers energy from one circuit to another circuit by magnetic coupling. A power transformer consists of two or more coupled windings, and in most of the cases, a magnetic core to focus magnetic flux. A changing voltage applied to one winding makes a time-varying magnetic flux in the core that induces a voltage in the other windings. These power transformers comes in a range of sizes from a thumbnail-sized coupling transformer hidden inside a stage microphone to a huge gig watt units that are used to interconnect large part of national power grids. In fact all transformers operate with the same basic principles and with few similarities in their parts.

Competitive Magnetics provides high quality current transformer. These current transformers are normally used in metering and protective passing on in the electrical power industry where they help the secure measurement of large volume current, in the presence of high voltages. In other words, a current transformer is a kind of “instrument transformer”, which is designed to offer a current in its secondary that is accurately proportional to the current flowing in its primary.

Today inductor plays a very important role in storing energy. It is a passive electrical device working in electrical circuits for its property of inductance. Inductor could take many forms. It is usually constructed as a coil of conducting substance, classically copper wire, coated around a core either of air or of ferromagnetic material. . Core materials with an advanced permeability than air confine the magnetic field directly to the inductor, thus increasing the inductance. Inductors as well come in many shapes. Transformers actually rely on the principle of magnetic induction among coils to convert voltage and/or current levels.

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