Transformador de corrente (TC)! Como funciona?

What is a toroidal CT? Current transformers and their applications, as well as what a toroidal CT is, are the topics of this Mundo da Elétrica video. The use of alternating current transformers for measuring electrical current and their application in electrical instrumentation is discussed. How to install a CT or how to use a current transformer are common questions. We show you about electric current transformers, their purpose, and the definition of a CT. CT (current transformer) Toroid do Brasil 200/5 - 100/5 - 50/5: Demonstrate the various transformation ratio values. Learn more: https://goo.gl/NnZiYW Among the objectives of this video, we highlight: Introduce the CT current transformer and its operation. Test its operation. We cover the following topics throughout this video: The current transformer is known as a CT or also as an instrument transformer. - Its main use is for current transformation for measurement purposes, which is why it is widely used in instrumentation. It consists of a copper winding around a toroid-shaped ferrite core, cylindrical and similar to a ring. It is used to measure currents in cables or busbars. A magnetic field from the conductor's electric current induces a current in the terminals of the toroidal winding. This current is reduced according to its transformation ratio. The measuring equipment must be configured according to this transformation ratio. It measures the toroid's current and converts it to the actual value according to the transformation ratio. Used for high currents, the CT is a fixed device that is non-invasive to the electrical circuit. Parts highlighted in this video: 00:26 - Toroidal transformers are a type of transformer that has few losses due to their shape. The vast majority of current transformers, such as those from Toroid, are toroidal. 01:32 - Transformers have a transformation ratio. In the case of CTs, it's a current transformation ratio, but in other transformers, it's a voltage transformation ratio. 02:55 - Transformers work on magnetic principles; an electric current generates a magnetic field that can be induced in the toroids, thereby obtaining a current ratio. 04:23 - Current can be measured with an ammeter in series or using a current reference through a current transformer. 05:27 - Clamp meters use the same principle as current transformers to measure electric current. Features of this video: Henrique Mattede   / henrique.mattede   Video Editing: Bruno Almeida (Morgado) #MEL_00461 -- O Mundo da Elétrica is an electricity, electrical, and electronics channel with quality videos for you to learn on your phone, tablet, or on your living room TV. Electrical for everyone! Electrical control courses, online electrical classes, PDF manuals, electrical diagrams, and explanations of NR 10 and other concepts! Join Mundo da Elétrica: On YouTube (click and subscribe): http://goo.gl/vXru8M Mundo da Elétrica website: http://www.mundodaeletrica.com.br On Telegram: https://telegram.me/mundodaeletrica On Facebook:   / mundodaeletrica   On Google Plus: https://plus.google.com/+MundoDaEletrica On Twitter:   / mundodaeletrica   On LinkedIn: https://goo.gl/S8lcwp