The results indicate that , the effect on the electric and mechanical performances of 500kv dc ceramic support insulators could not be founded 化學分析結果表明長期離子遷移試驗并未引起直流支柱瓷材料na ~ + 、 k ~ +含量明顯的變化。
On the base of the iec standard of dc suspension insulators , we designed a new ion migration test for 500kv dc ceramic support insulators , including the regulation between the bulk resistance and the temperature , the test samples , the test voltage and the temperature for long - term ion migration test , and the amount of accumulative charges 以懸式絕緣子離子遷移試驗標準為基礎,完整的設計了500kv直流支柱式瓷絕緣子離子遷移試驗,其中包括研究了試品體積電阻隨溫度場強變化的規律,成功的設計了試驗試品,確定了長期離子遷移試驗電壓( 40kv )和試驗溫度( 130 ) ,計算了50年累計電荷量( 0 . 173c ) 。
This thesis is founded on the investigation of the ion migration of 500kv dc ceramic support insulators for the production of the 500kv dc ceramic support insulators . in the test system , we added the grounding switch for each circuit and the mutual switch , prescribed the four status of the current measuring program , making the measurement system more stabile 在對離子遷移試驗研究的過程中,對原有離子遷移試驗測量系統進行了改進,通過為每路泄漏電流回路設置接地開關及公共測量開關,并在軟件上為測量回路設定4種狀態,提高了測量系統的穩定性。