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Arrester :
   35~220kv line metal oxide arrester



Line metal oxide arrester with series gaps is used to protect the insulator chains on transmitting line from lightning stroke caused by lightning over-voltage, reduce tripping rate, improve the lightning resistance level of line, so as to strengthen the power supply reliability. 100KV, 200KV metal oxide arrester with series gaps and 100KV, 200KV insulator chains are experimented on about lighting volt-second features, their curves are shown in Fig, 16 and their technical parameters are seen in Table 4.

Gapless line metal oxide series gaps in used to protect the insulator on line, which is helpful to reduce the operational over-voltage current through arrester and its technical are seen in Table 5.



Fig 15V-S characteristic coordination curve of
110KV insulator chains and line arrester


Fig 16V-S characteristic coordination curve of
220KV insulator chains and line arrester



110V, 200KV Line arrester with series gaps          35KV, 110KV, 200KV gapless line arrester

    

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