The working principle of a current transformer (CT) is based on the principle of electromagnetic induction. When an alternating current (AC) flows through the primary winding of the CT, it generates a magnetic field around the primary conductor. This magnetic field induces a proportional current in the secondary winding of the CT according to Faraday’s law of electromagnetic induction. The secondary current is then proportional to the primary current but reduced by the turning ratio of the transformer.
The working principle of a CT analyzer is to accurately measure and analyze the performance of current transformers. It typically injects a known current into the primary side of the CT and measures the resulting secondary current to evaluate parameters such as accuracy, phase angle error and saturation characteristics. By analyzing the relationship between primary and secondary currents, the CT analyzer provides valuable information on the performance of CT and helps ensure its proper operation in power systems.
The primary function of a CT is to accurately measure alternating currents in electrical power systems. By releasing high primary currents to a safe and measurable level on the secondary side, CTS enables the monitoring, measurement and protection of electrical circuits and equipment. They play a crucial role in various applications including power distribution, substate monitoring, equipment protection and energy management. CTS ensures the safe and efficient operation of electrical systems by providing accurate current measurements for control, monitoring and analysis.