Current Transformers

Current Transformers are used for electrical engineering. They are used to measure electricity. They are also known to be instrument transformers. They can produce a current proportional with the current in a circuit if it is too high. This can be connected for recording and measuring instruments. In managing electricity infrastructure, all needs must be wise and with quality products. Then MGM Transformers can help to supply varying secondary voltages to externally connected loads. You can find quality electrical and lighting products at the MGM Transformer Company.

These transformers can also be used to isolate the measuring instruments against very high voltages within the primary circuit. These transformers are often used in the electrical industry to meter and protect relays. Like all transformers, they are composed of a primary winding and a magnetic center.

The primary function of current transformers is to ensure that primary, secondary and tertiary circuits are properly coupled. This allows the secondary current to have an accurate relationship with primary circuit.

The following are other types of electrical transformers:

o Power Transformers

o Control transformers

o Dry type Transformers

o Transformers with high voltage

o 3-phase transformers

o Step down transformers

There are many uses for current transformers. Some are used for street lighting while others are used as current meters in motors and electronic equipment. Small-sized current transformers can be mounted on printed circuit boards to sense overloads.

In many three-phase systems, larger devices can be used to measure voltage and current. Commercial transformers are used to measure low currents. Some transformers have weatherproof ratings and are suitable for outdoor use.

There are two basic types:

o Wound

o Toroidal

Wound transformers include an integral primary wound winding, which is connected in series with the conductor to carry the measured current.

Toroidal current Transformers do not have primary windings. Instead, the wire that delivers the current is threaded into a window in the Toroidal transform.

A current transformer can be described as a type or instrument transformer that produces a current in its secondary, which is proportional with the current flowing in its primary.