What is the minimum voltage level mentioned for EHV substations?

EHV, or Extra High Voltage, substations are crucial components in the transmission network, specifically designed to handle high voltage levels for efficient long-distance electricity transfer. The minimum voltage level typically associated with EHV substations starts at 345 kV, but it extends significantly higher; 500 kV and 765 kV are also included within the realm of Extra High Voltage.

The inclusion of all given voltage levels emphasizes the classification that encompasses a range of voltages starting from 345 kV and going up to 765 kV. This means that all listed voltage levels are valid as they represent the spectrum of high voltages that EHV substations can operate at, ensuring the stability and efficiency of the power grid as a whole. Understanding these voltage definitions is essential for recognizing the capabilities and classifications within electrical transmission systems.