Substation Surge Protective Lightning Arrester for Lightning Protection System

1. 0.28kV~500kV Surge Arresters' Characteristics: 1. The Core column applied winding structure, Polymer Housed core pillar molded on the core column, with almost no internal air gap, and outstanding sealing performance Simple in structure, small in size and light in weight. 2. Polymer Housed with silicone rubber, explosion-proof ZnO varistor as the core component is largein flow capacity.3. International standard IEC 60099-4 and ANSI 62.22, and with high reliability. With fully insulated tops, the product can be applied to the complete cabinet installation, which can reduce the designing size of cabinet. 4. Products with detachment device can provide signals for quitting operation when failure occurs,avoiding arrester explosion, and it is maintenance-free. 5. Polymer housed products with a six CTI level, creepage distance meets the requirements of IV level in heavy pollution areas. 2. Surge Arrester Technical Parameters:TypeYH5W5-15/33  Rated voltage---------kV154/10μS High current impulse kA 65MOCV  ----------------kV12.7Lightning impulse withstand kV95Nominal Current-------kV5Power frequency voltage withstand(dry/wet)kV28Residual voltage of steep impulse----at 5kA(kV)43.50.1S TOV--------------kV188/20μS Residual voltage of lightning impulse current kV(Peak value)-----at 5kA(kV)401S TOV----------------kV17.25Residual voltage of switching impulse current kV (peak value)----at 1kA  (kV)/10S TOV---------------kV16.51mA D.C reference voltage (kV)21.21200S TOV-------------kV15Line discharge level1Creepage distance ----mm5002mS long duration impulse current A250Material employed in series non-linear resistorZinc Oxide3. Surge Arrester Working Condition:Environment temperature: -40--+40 degreealtitude: