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A current transformer (CT) is an electrical device that converts a large primary current into a smaller, more manageable secondary current. It is mainly used for measuring instruments and relay protection devices to monitor, control, and protect power systems.

Combined instrument transformers (CITs) are becoming increasingly popular in the power industry due to their ability to provide accurate and reliable measurements of voltage and current.

In the world of power transmission and distribution, ensuring the safety and reliability of electrical equipment is paramount. One of the critical components in achieving this is the surge arrester.

Power transmission lines are essential for transporting electricity from power plants to substations and, ultimately, to consumers. However, these lines are susceptible to various issues that can disrupt the flow of electricity and cause significant damage.

A voltage transformer (PT) is an instrument used to transform voltage, mainly used to transform high voltage into low voltage suitable for measurement and protection. The working principle of a voltage transformer is similar to that of a transformer, but the capacity is smaller, usually only tens or

The rapid advancement of technology has brought about significant improvements in the efficiency and reliability of modern power grid systems. One critical component in ensuring the safety and stability of these systems is the zero-sequence current transformer (ZSCT). This device plays a vital role