In this post, you will find detailed information on What is the function of a TC?, What is the function of a CT in a substation?, What is a TC? What are the main construction features?
What is the function of a TC?
The function of a CT (transformer component), often referring to a current transformer (CT), is to measure high currents in an electrical circuit and provide a reduced, proportional current that can be safely handled by measuring instruments and protective devices. The CT isolates the high-current circuit from measuring or protection devices, ensuring the safety and accuracy of monitoring and control of electrical systems.
What is the function of a CT in a substation?
In a substation, the function of a CT (current transformer) is to measure high currents flowing in electrical circuits and convert them to lower, manageable currents for precise measurement, monitoring and protection. CT enables safe and precise operation of relays and instruments by reducing high current to a level suitable for handling these devices.
What is a TC? What are the main construction features?
A CT (transformer component), generally referring to a current transformer (CT), is an electrical device used to measure and monitor high currents. Its main construction features include a primary winding (or conductor) through which the high current flows, and a secondary winding which produces a proportionately lower current. The transformer core is often made of laminated silicon steel to reduce energy losses and improve efficiency. The CT is designed to provide accurate current measurement while ensuring safety by isolating high currents from measurement and protection devices.
Types of CT (current transformers) include:
Wound primary CTs: where the primary winding is a conductor wound around the core, allowing direct connection to the high current circuit.
Bar Primary CTs: Where the primary winding is a solid bar which carries the high current, and the CT is designed to measure the current flowing through this bar.
Clamp CT: These are flexible or split core CTs that can be clamped around an existing conductor without the need to disconnect the circuit, used for portable or temporary measurements.
The primary function of a current transformer (CT) is to measure and monitor high electrical currents by lowering them to a lower, manageable level that can be safely handled by measuring instruments and protective devices. CTs provide current proportional to the secondary winding, enabling precise monitoring and protection of electrical systems while ensuring safety and avoiding damage to measurement and protection equipment.
We hope this explanation of What is the function of a TC? answered your questions.
