ELPRO's MOGARD Surge Arresters have been providing excellent protective characteristics, temporary overvoltage capability and switching-surge energy withstand to power systems for over 20 years. It is an improvement on the Fieldproven Arrester and incorporates the latest development in metal-oxide technology. An outdoor arrester basically consists of a column of highly non-linear metal oxide resistors, which are hermetically enclosed in porcelain containers. The column comprises metal oxide discs connected in series.
Nominal Discharge
Current 10kA
Rated Frequency 48-62Hz
Pressure Relief Capability (0.2 sec) 65kA rms
Line Discharge Class III
Energy Dissipation Capability 10kJ/kV
Continuous Leakage Current at MCOV
Resistive (Max) 400µ AP
Capacitive (Max) 1500µ AP
Cantilever Strength 9800 N-m
Nominal Discharge
Current 10kA
Rated Frequency 48-62Hz
Pressure Relief Capability (0.2 sec) 40kA rms
Line Discharge Class III
Energy Dissipation Capability 6.5kJ/kV
Continuous Leakage Current at MCOV
Resistive (Max) 400µ AP
Capacitive (Max) 1500µ AP
Nominal Discharge
Current 10kA
Rated Frequency 48-62Hz
Pressure Relief Capability (0.2 sec) 40kA rms
Line Discharge Class II
Energy Dissipation Capability 4.5kJ/kV
Continuous Leakage Current at MCOV
Resistive (Max) 400µ AP
Capacitive (Max) 1500µ AP
Cantilever Strength 3100 N-m
Nominal Discharge
Current 10kA
Rated Frequency 48-62Hz
Pressure Relief Capability (0.2 sec) 40kA rms
Line Discharge Class I
Energy Dissipation Capability 2.5kJ/kV
Continuous Leakage Current at MCOV
Resistive (Max) 400µ AP
Capacitive (Max) 1500µ AP
Cantilever Strength 3100 N-m
