What are the technical challenges of UHV projects?

2025-08-16

Building UHV lines is considered the "Mount Everest" of the power industry due to several challenges:

  • Insulation and Overvoltage: The extreme voltages require massive, highly engineered insulators and significant air clearances to prevent arcing and flashovers, especially in adverse weather conditions.

  • Corona Discharge: At these high voltages, a phenomenon called corona occurs, causing energy loss, noise, and radio interference. This is mitigated by using bundled conductors, where multiple sub-conductors are used per phase.

  • Specialized Equipment: The sheer size and weight of UHV components, from towers to conductors, demand specialized, high-capacity equipment.

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