Medium-voltage surge arrester POLIM-D

class Ifor power supplies

POLIM-D is a surge arrester with metal-oxide (MO) resistors without spark gaps directly molded in silicone housing, in grey color, designed and tested according to IEC 60099-4; and it fulfills the requirement of ANSI/IEEE C62.11. Fire and smoke behavior tested and classified according to EN 45545-2. It is used for secure protection of medium voltage systems against overvoltages from atmospheric discharges and switching conditions. Applications • Medium-voltage distribution transformer • Pole mounted medium-voltage transformer • Medium-voltage cable and cable termination • Reactor and power line carrier (PLC) line trap • Other medium-voltage distribution equipment Why Hitachi Energy? • Over 100 years of experience in overvoltage protection and more than 30 years with silicone insulation • Local and global Hitachi Energy application support • Proven safe short-circuit current design • Design life of more than 30 years • Own production of metal-oxide (MO) resistors • Excellent protection level with low residual voltage • UV resistant silicone housing with excellent pollution performance • Maintenance free