From large power stations to compact SMPS circuits, transformers can be found almost everywhere. Though there are many types of transformers and their exact working differs based on the application, the basic working of the Transformer remains the same. These symbols are placed according to the dot convention rule. But what is it?


Transformer, Construction, Working, Types & Application - Electrical Technology.pdf




Instrument Transformers
Premium Membership. Learn from experienced power engineers. The CTs current transformers and VTs voltage transformers are provided in the plants to reduce the voltage and current values of the plant to values such as to be able to be detected by measurement and protection devices. They also make the secondary measurement and protection circuits galvanically independent in relation to the primary power circuit, at the same time guaranteeing greater safety for operators a point of the secondary winding of the instrument transformer must always be connected to ground.



Instrument transformer
Premium Membership. Learn from experienced power engineers. Instrument transformers are primarily used to provide isolation between the main primary circuit and the secondary control and measuring devices. This isolation is achieved by magnetically coupling the two circuits. In addition to isolation, levels in magnitude are reduced to safer levels.





Electrical Engineering Stack Exchange is a question and answer site for electronics and electrical engineering professionals, students, and enthusiasts. It only takes a minute to sign up. Let's say I have a transformer with 3 coils.

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