High voltage (HV) switchgear is a combination of electrical disconnects, fuses, circuit breakers, and relays designed to monitor, control, and protect high-voltage circuits. High voltage systems, typically defined as electrical systems operating at voltages above 1,000 volts for alternating current and 1,500 volts for direct current, are integral to modern power generation and transmission. These systems play a crucial role in ensuring efficient electricity. High‑voltage systems operate at voltages above ~1 kV AC (or 1. 5 kV DC) to transmit large power across long distances—vital for utilities, industrial and grid systems.