circuit breaker

ABB Commissions World's Highest Voltage Switchgear Solution

ABB designed, manufactured, installed and commissioned a 1,200-kV circuit breaker the highest AC voltage level in the world. Once the 1200-kV ultrahigh-voltage switchgear is fully operational, it will have a switching capacity of 10,400 MW - a switch capable of turning ON' or OFF' the electricity generated by 10 large power plants or the combined average annual electrical load of Switzerland and Denmark, within milliseconds.