FZ Series current transformer

Product Overview

A CT uses electromagnetic induction and contains two windings: a primary winding with a few turns connected in series to the high-current circuit, and a secondary winding with numerous turns connected to safety or measurement devices. The primary winding receives a large current, but the secondary winding, which is typically tuned to 5A or 1A for most industrial applications, receives very little current. This proportionality, also known as the transformation ratio, enables precise current monitoring while protecting personnel and equipment from potentially harmful voltages.

CTs need linearity to reduce measurement error, high precision for energy metering, and sufficient insulation to maintain a high voltage between windings. Never leave the secondary winding open circuit when using a CT. This is due to the possibility of extremely high voltages being produced by an open circuit, which might damage electrical equipment.Lastly, current transformers are essential to guaranteeing the dependability, effectiveness, and safety of contemporary electrical systems since they allow for more accurate current monitoring and enhanced problem identification.

Technical Parameters