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POTENTIAL TRANSFORMER (PT)

A Potential Transformer (PT), also known as a Voltage Transformer (VT), is an essential electrical device used to measure high voltages in power systems. It operates by stepping down high voltage levels to a lower, manageable voltage that can be safely measured and monitored.

**Operation**: PTs function based on the principle of electromagnetic induction, with a primary winding connected to the high-voltage circuit and a secondary winding that produces a proportional, reduced voltage.

**Safety**: They provide electrical isolation between high-voltage lines and measuring instruments, enhancing safety for operators and equipment.

**Applications**: PTs are widely used in power generation, transmission, and distribution systems for voltage measurement, protection relaying, and monitoring electrical equipment.

**Types**: Various types of PTs exist, including inductive and capacitive transformers, each suitable for different applications and voltage levels.

**Accuracy**: PTs are designed to provide accurate voltage readings over a specified range, ensuring reliable data for system monitoring and control.

**Standardization**: Many PTs adhere to international standards, such as ANSI/IEEE and IEC, to ensure consistency and performance across different applications.

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