CTY2 Series current transformer

One essential piece of electrical equipment that controls, monitors, and protects the power supply is a current transformer (CT). Extremely massive alternating current (AC) is produced in small, quantifiable amounts. Safety relays or sensitive measurement devices are usually connected to high-current power circuits in power production, transmission, distribution, and industrial applications.

product details

Product Overview

A CT employs electromagnetic induction and consists of two windings: a main winding with a few turns linked in series to a high-current circuit and a secondary winding with several turns connected to safety or measurement devices. The secondary winding, which is normally tuned to 5A or 1A for the bulk of industrial applications, receives very little current, whereas the main winding receives a lot. This proportionality, also known as the transformation ratio, protects people and equipment from unsafe voltages while allowing for accurate current monitoring.

CTs require high precision for energy metering, linearity to minimize measurement error, and enough insulation to sustain a high voltage between windings. When using a CT, the secondary winding should never be left open circuit. This is because an open circuit has the potential to produce extremely high voltages that might damage electrical equipment.Lastly, since they enable more precise current monitoring and problem diagnosis, current transformers are essential to the reliability, efficiency, and safety of modern electrical systems.

Technical Parameters

Type	Specification	(mm) Outline Size
Type	Specification	c	A	B	C	D	M
CTY2-30	60A/5A	30	89	70	28	80	c5*7
CTY2-45	OOA/5A	45	104	85	28	95	c5*7
CTY2-65	250A/5A	65	124	105	28	115	c5*7
CTY2-80	400A/5A	80		122	28	132	c5*7
CTY2-100	630A/5A	100	162	142	28 ln	152	c5*7
Accuracy Grade: 1.0		Overload Current:≥1.2%ln