Current Transformer Definition Electricity

Transformer operates on an ac supply.

Current transformer definition electricity.

A current transformer ct is a type of transformer that is used to reduce or multiply an alternating current ac. Current transformer ct definition. This is a very basic definition of transformer since there is no rotating or moving part so a transformer is a static device. The winding which gives the desired output voltage due to mutual induction is commonly known as the secondary winding.

This is the second coil in the diagram above. The transformer is the static device which works on the principle of electromagnetic induction it is used for transferring the electrical power from one circuit to another without any variation in their frequency. Transformer device that transfers electric energy from one alternating current circuit to one or more other circuits either increasing stepping up or reducing stepping down the voltage transformers are employed for widely varying purposes. Current transformers along with voltage or potential transformers are instrument transformers instrument transformers scale the large values of voltage or current to small standardized.

Electrical energy can be transferred between. A power transformer is a static machine used for transforming power from one circuit to another without changing frequency. A transformer that increases voltage between the primary to secondary windings is defined as a step up transformer conversely a transformer that decreases voltage between the primary to secondary windings is defined as. Rated transformation ratio kn i rated primary i rated secondary e g.

It transforms the high voltage current into the low voltage current due to which the heavy current flows through the transmission lines is safely monitored by the ammeter. E g to reduce the voltage of conventional power circuits to operate low voltage devices such as doorbells and toy electric trains and to raise the. 100 a 5 a. The current transformer c t.

Is a type of instrument transformer that is designed to produce an alternating current in its secondary winding which is proportional to the current being measured in its primary current transformers reduce high voltage currents to a much lower value and provide a convenient way of safely monitoring the actual electrical current flowing in an ac. Current transformer ratings rated primary current ipn rms value of the maximum continuous primary current usual values are 25 50 75 100 200 400 600 a. A transformer is a passive electrical device that transfers electrical energy from one electrical circuit to another or multiple circuits a varying current in any one coil of the transformer produces a varying magnetic flux in the transformer s core which induces a varying electromotive force across any other coils wound around the same core. A current transformer is a device that is used for the transformation of current from a higher value into a proportionate current to a lower value.