宁夏电力
寧夏電力
저하전력
NINGXIA ELECTRIC POWER
2014年
3期
1-4
,共4页
断路器并联电容器%介质损耗%离子性缺陷
斷路器併聯電容器%介質損耗%離子性缺陷
단로기병련전용기%개질손모%리자성결함
circuit-breaker parallel capacitor%dielectric loss%ionic defect
对JWF150-1500型和JWF150-0.0015GHW型断路器并联电容器进行高压介质损耗试验,发现部分断路器并联电容器随电压升高介损值变化明显,存在离子性缺陷。通过数据和理论分析,解释了断路器并联电容器介质损耗随电压变化的原因及离子性缺陷对断路器并联电容器影响,并提出有效解决措施。结果表明:例行试验与投运前试验时10 kV下tanδ测量值偏差较大,且高压介损随电压变化下降明显的断路器并联电容器,可认定存在离子性缺陷。
對JWF150-1500型和JWF150-0.0015GHW型斷路器併聯電容器進行高壓介質損耗試驗,髮現部分斷路器併聯電容器隨電壓升高介損值變化明顯,存在離子性缺陷。通過數據和理論分析,解釋瞭斷路器併聯電容器介質損耗隨電壓變化的原因及離子性缺陷對斷路器併聯電容器影響,併提齣有效解決措施。結果錶明:例行試驗與投運前試驗時10 kV下tanδ測量值偏差較大,且高壓介損隨電壓變化下降明顯的斷路器併聯電容器,可認定存在離子性缺陷。
대JWF150-1500형화JWF150-0.0015GHW형단로기병련전용기진행고압개질손모시험,발현부분단로기병련전용기수전압승고개손치변화명현,존재리자성결함。통과수거화이론분석,해석료단로기병련전용기개질손모수전압변화적원인급리자성결함대단로기병련전용기영향,병제출유효해결조시。결과표명:례행시험여투운전시험시10 kV하tanδ측량치편차교대,차고압개손수전압변화하강명현적단로기병련전용기,가인정존재리자성결함。
By the high voltage dielectric loss test on the type of JWF150-1500 and JWF150-0.0015GHW circuit-breaker parallel capacitors,discoveres that with voltage increase the dielectric loss value of some circuit-breaker parallel capacitors obvious change,exists ionic defect. Through the data and theoretical analysis,explains the reason of the dielectric loss change with voltage increase and the effects of ionic defects on circuit-breaker parallel capacitor,suggests the effective solution.The result shows that routine test and test before operation under 10 kV voltage,the tan δhas large measure deviation value, and with voltage change the high voltage dielectric loss decreased obviously,can judge the circuit-breaker parallel capacitor have ionic defect.