What is magneto-optical current transformer?

What is magneto-optical current transformer?

Magneto Optic Current Transformer is a device in which electromagnetic waves propagate through a medium that has been altered by the presence of very slowly changing reversible magnetic field.

How optical current transformer works?

Main Features. Trench optical current transformers are based on Faraday effect principle. The output is a low power optical signal which is then transferred to a merging unit which adapts it to communication protocols such as IEC 61850-9-2.

What are magneto-optical materials?

A material is classified as magneto-optical (MO) if it affects the propagation characteristics of light when an external magnetic field is applied on it. For ferromagnetic materials, which are composed by magnetically ordered domains, MO phenomena may also occur in the absence of an external magnetic field.

What is an optical transformer?

Optical Current Transformer is an alternative to the existing conventional current transformers, providing an advanced measurement solution for both metering and protection applications, based on a cutting-edge patented optical sensing technology.

What is Magneto Optical Faraday rotation?

The Faraday effect or Faraday rotation, sometimes referred to as the magneto-optic Faraday effect (MOFE), is a physical magneto-optical phenomenon. The Faraday effect causes a polarization rotation which is proportional to the projection of the magnetic field along the direction of the light propagation.

What is magneto-optic modulator?

Magneto-optic modulator (MOM) concept and design. A magnetic-sensitive medium exhibits circular birefringence, i.e., difference in the refractive indices for left- and right-handed circular polarization, by applying a magnetic field. This is known as the Faraday effect.

What is magneto-optic disc?

In computer memory: Magneto-optical discs. Magneto-optical discs are a hybrid storage medium. In reading, spots with different directions of magnetization give different polarization in the reflected light of a low-power laser beam.

What is optical voltage transformer?

Optical Current Transformers and Optical Voltage Transformers, based on the Faraday and Pockels effect, are a new family of instrument transformers and an alternative to the conventional electric-magnetic transformers for protection and metering purposes.

What is the work of CT?

A current transformer (CT) is a type of transformer that is used to reduce or multiply an alternating current (AC). It produces a current in its secondary which is proportional to the current in its primary. Current transformers, along with voltage or potential transformers, are instrument transformers.

Do magnetic fields bend light?

Although a magnetic field doesn’t affect the photons of light directly, a magnet can distort the medium through which light passes and thereby “bend” the light rays. This effect is significant only around huge magnetic bodies, such as neutron stars.

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