Why CT and PT are used

Question

Accepted Answer

CT and PT are used in electrical systems for measurement and protection purposes.

CT (Current Transformer) is used to measure high currents and step them down to a manageable level for measurement and protection devices.
PT (Potential Transformer) is used to measure high voltages and step them down to a safe level for measurement and protection devices.
CTs and PTs provide isolation and safety by separating the high voltage/current circuits from the low voltage/current circuits.
CTs and PTs are commonly used in power systems, electrical substations, and industrial applications.
For example, CTs are used in energy meters to measure the current flowing through a circuit, while PTs are used in voltage meters to measure the voltage across a circuit.

Accepted Answer

CT are used in measuring current & PT are used in measuring voltage..

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