Characteristic of Hyosung GIS GIS is the substation equipment containing switches such as circuit breakers, disconnectors and earthing switches, and auxiliary devices such as current transformers, voltage transformers and lightning arrestors in the metal enclosure filled with SF6 gas. Hyosung GIS can be installed in minimum space, provides high reliability and safety of operation, and facilitates repair and maintenance. It is especially suitable for installation in highly-polluted area or seaside district. Hyosung GIS ranging from 25.8kV to 800kV model has passed the CESI (Italy) and KEMA (The Netherlands) test as well as the Korea Electrotechnology Research Institute’s test. Highest technology Experience in supplying • GIS technology for wide range of voltage and current 25.8kV GIS to many projects - Voltage : 24kV ~ 800kV • Delivery 3,200 set up to date since GIS introduced in - Current : 630A ~ 8000A 1993 in KEPCO. • Residential part : Delivery 1,500 set in Samsung electronics /Posco and so on Reliable parts Superior installation • AL O spacer with superior insulation capability 2 3 • Tulip contractor proven through application in • Experience in various projects high-voltage facilitiesn • Operating expert staffs (Switchgear team) • Highly reliable V.I.(Vacuum Interrupter) Guarantees quality from commencement to A/S I 22 23 ProGIS