Principe du transformateur de courant toroïdal

‌A toroidal current transformer‌ is a sensor for measuring current, and its working principle is based on Faraday's law of electromagnetic induction. When the current in the conductor being measured changes, a magnetic field is generated, which passes through the iron core of the toroidal current transformer and then induces a current signal in the secondary winding. By measuring the current signal of this secondary Enroulement, la taille actuelle du conducteur mesuré peut être mesurée avec précision .

Structure de base et principe de travail du transformateur de courant toroïdal
A toroidal current transformer usually consists of a toroidal core and two windings. The conductor being measured passes through the center hole of the toroidal core, and the current signal in the secondary winding is induced by the magnetic field generated by the main winding. Its design principle ensures that current measurement is performed without contacting the conductor being measured, realizing the function of non-contact mesure .