CTYK Series current transformer

Product Overview

A CT is driven by electromagnetic induction and has two windings: a secondary winding (many turns linked to safety or measurement devices) and a primary winding (few turns connected in series with the high-current circuit). The secondary winding, which is usually set at 5A or 1A for most industrial applications, receives a low current while the primary winding receives a high current. This proportionality, also known as the transformation ratio, allows for accurate current monitoring while shielding workers and equipment from potentially hazardous voltages.

CTs require robust insulation to maintain high voltage between windings, sufficient linearity to minimize measurement error, and high precision for energy metering. When using a CT, the secondary winding should never be open circuit. This is owing to the risk that an open circuit may generate extremely high voltages, which could harm electrical equipment.In conclusion, since they enable more precise current monitoring and greater fault prevention, current transformers are critical to ensuring the reliability, efficacy, and safety of modern electrical systems.

Technical Parameters