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KYN-12 removable armored metal enclosed switchgear for rated voltage of 3-6kv, rated frequency 50hz power system without oil distribution device. its rated current, breaking current war, can be widely used in electric power, metallurgy, oil , Chemical and other departments, has its motor and 1600kva 1200kw the following control and protection for transformer. use the maximum temperature does not exceed 40 degrees, the minimum relative humidity of less than -15 degrees not more than 95%, the monthly average of less than 90 %, not more than 1000m above sea level does not exceed 8 degrees of seismic intensity did not fire, explosion, heavy pollution, chemical corrosion and the edge of the place where the gas does not load when the environmental conditions, special requirements should be taken to manufacture products