metal oxide surge arresters for electric railway

Main technical parameters of metal oxide surge arresters for electric railway a.c. systems   　Production type 　System nominal voltage 　MOA rated voltage 　Continuous operating voltage 　Nominal discharge current 　Reference voltage at d.c. 1mA 　Steep current impulse residual voltage 　Lightning impulse residual voltage 　Switching impulse residual voltage 　Long duration current impulse withstand 　High current impulse withstand 　Power-frequency withstand voltage for the housing 　Lightning impulse withstand voltage for the housing 　weight 　Production category kV (rms) kV (rms) kV (rms) kA ≥ kV ≤kV(peak) A ≥ kA ≥ kV ≥ kV kg Y(H)5WT-42/110 27.5 42 34 5 65 127 110 94 600 200 95 185 67(15) 电气化铁道型 Y(H)5WT-42/120 27.5 42 34 5 65 138 120 98 600 200 95 185 67(15) Y(H)5WT-84/240 55 84 68 5 130 276 240 196 800 300 185 450 106(26) Y(H)10WT-84/240 55 84 68 10 130 291 240 221 800 300 185 450 106(26) YH5WT-42/110TLQ 27.5 42 34 5 65 127 110 94 600 200 95 185 20 带分频分流脱离装置接触网用免维护型 YH5WT-42/120TLQ 27.5 42 34 5 65 138 120 98 600 200 95 185 20 YH10WT-42/120TLQ 27.5 42 34 10 65 138 120 98 600 200 95 185 20 YH10WT-84/240TLQ 55 84 68 10 130 276 240 196 800 300 185 450 32 YH10CT-36/100 27.5 36 　 10 55 111 100 　 600 200 95 185 18 接触网用外串间隙型