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Metal Oxide Surge Arrester For D.C. Voltage Systems

Metal Oxide Surge Arrester For D.C. Voltage Systems

Field of application:
Type series SKB 1/10/G to SKB 4/10/G
Protection of d.c voltage systems and rectifiers against atmospheric and switching overvoltages.The surge arresters are intended for vertical installation on rail and railless electrical vehicles and overhead lines.the application for indoor and outdoor mounting is possible.
Design
Porcelain housing: glazed brown
Fittings: Al Alloy,
Connections: clamps and screws made of stainless steel
Optional accessories
bracket for fastening on steel tower insulation base
Operating conditions
ambient temperature: -40 to +55
(different operating conditions on inquiry )

Technical parameters:
d.c-rated voltage Ur: 1.2kv to 4.8kv
nominal discharge current: 10kA
high current impulse(4/10): 100kA
long duration current impulse: 1000A/2000μ
line discharge class: 3(6,7kJ/kvur)
pressure relief withstand: 40kA/0.2s
mechanical shock strength acc. to DIN IEC68 PART 2-29:15g
vibration resistance acc.to DIN IEC68 PART 2-6: 3g(10-500Hz)


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