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ä½ çŸ¥é“高频å˜åŽ‹å™¨çƒ§åçš„åŽŸå› æ˜¯ä»€ä¹ˆå—?</h3>
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<span>æ–‡ç« å‡ºå¤„ï¼?a href=""><a href="http://cfdz.nsw888.com">深圳市晨飞电å有é™å…¬å?/a></a></span><span>网责任编辑：<a href="http://cfdz.nsw888.com">NSW</a></span><span>作者：<a href="http://cfdz.nsw888.com">NSW</a></span><span>人气ï¼?span
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<p>　　<span style="font-size: 16px">电力系统ä¸ï¼Œä½ŽåŽ‹å˜åŽ‹å™¨çš„烧æ¯æ˜¯ç»å¸¸å‘ˆçŽ°çš„故障。éšç€å†œæ‘ç”µç½‘å»ºè®¾ä¸Žæ”¹é€ å·¥ç¨‹çš„å®žæ–½å’Œç”µåŠ›ä½“åˆ¶æ”¹é©çš„深入开展，é…电å˜åŽ‹å™¨çš„产æƒå·²å½’属于供电部门所有。然而é…电å˜åŽ‹å™¨çƒ§æ¯ä¸åªä»…åªæ˜¯ä¼šé€ æˆåœ°åŒºå¤§é¢ç§¯åœç”µï¼Œæ›´ä¸ºä¸¥é‡çš„会使供电部门å‘社会承诺的供电å¯é 率得ä¸åˆ°å……æ²›ä¿è¯ï¼Œå½±å“电力形象ã€?/span></p>
<p> </p>
<p><span style="font-size: 16px">　　一ã€å˜åŽ‹å™¨çƒ§æ¯åŽŸå› </span></p>
<p> </p>
<p><span style="font-size: 16px">　　1ã€é“心多点接地ã€?/span></p>
<p> </p>
<p><span style="font-size: 16px">　　1)l0kVé…电å˜åŽ‹å™¨é“心多点接地是很ä¸å®¹æ˜“被å‘现和测试的，这主è¦æ˜¯å› 为å˜åŽ‹å™¨çš„é“心接地是内部用一å—很薄的紫色铜片一头夹在é“å¿?ç¡…é’¢ç‰?之间，å¦ä¸€å¤´åˆ™åŽ‹åœ¨é“心夹æ¿ä¸Šä¸Žå˜åŽ‹å™¨å¤–壳直接连接ã€?/span></p>
<p> </p>
<p><span style="font-size: 16px">　　2)é“心硅钢片之间涂有ç»ç¼˜æ¼†ï¼Œä½†å…¶ç»ç¼˜ç”µé˜»å¾ˆå°ï¼Œåªèƒ½éš”æ–涡æµè€Œä¸èƒ½é˜»æ¢é«˜åŽ‹æ„Ÿåº”电æµã€‚如果硅钢片表é¢ä¸Šçš„ç»ç¼˜æ¼†å› 自然è€åŒ–，会产生很大的涡æµæŸè€—ï¼Œå¢žåŠ é“心的局部过çƒï¼ŒæŸåå˜åŽ‹å™¨ã€?/span></p>
<p> </p>
<p><span style="font-size: 16px">　　3)当é…电å˜åŽ‹å™¨ä½ŽåŽ‹ä¾§å‘生接地ã€ç›¸é—´çŸè·¯æ—¶ï¼Œå°†å‘生一个高于é¢å®šç”µæµ?0-30å€çš„çŸè·¯ç”µæµï¼Œè¿™ä¹ˆå¤§çš„电æµä½œç”¨åœ¨é«˜åŽ‹ç»•ç»„上，线圈内部将产生很大的机械应力，这ç§æœºæ¢°åº”力将导致线圈压缩，çŸè·¯æ•…障解除åŽåº”力也éšç€æ¶ˆå¤±ï¼Œçº¿åœˆå¦‚æžœé‡å¤å—到机械应力的作用åŽï¼Œå…¶ç»ç¼˜èƒ¶ç ã€èƒ¶åž«ç‰å°±ä¼šæ¾åŠ¨è„±è½ï¼Œé“心夹æ¿èžºä¸ä¹Ÿä¼šç¨å¾®æ¾å¼›ï¼Œé«˜åŽ‹çº¿åœˆç•¸å˜æˆ–崩裂。å¦å¤–也会å‘生高出å…许温å‡å‡ å€çš„温度，从而导致å˜åŽ‹å™¨åœ¨æžçŸçš„时间内烧æ¯ã€?/span></p>
<p> </p>
<p><span style="font-size: 16px">　　2ã€äººä¸ºçš„æŸåã€?/span></p>
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<p><span style="font-size: 16px">　　1)</span><strong><a href="http://www.chenfeipower.com/Products/gongmoxianquan.html"><span style="font-size: 16px">高频å˜åŽ‹å™?/span></a></strong><span style="font-size: 16px">的引出线是铜螺æ†ï¼Œè€Œæž¶ç©ºçº¿ä¸€èˆ¬å¤šé‡‡ç”¨é“èŠ¯èƒ¶çš®çº¿ï¼Œè¿™æ ·åœ¨ç©ºæ°”ä¸é“œé“之间是很容易å‘生电化è…蚀的电离作用下，铜é“之间形æˆæ°§åŒ–膜，使其接触电阻增大，引线处将螺æ†ã€èžºå¸½åŠå¼•çº¿çƒ§å或熔在一起ã€?/span></p>
<p> </p>
<p><span style="font-size: 16px">　　2)套管闪络放电也是å˜åŽ‹å™¨ç½•è§çš„外表异常现象之一，空气ä¸æœ‰å¯¼ç”µæ€§èƒ½çš„金属尘埃附å¸åœ¨å¥—管表é¢ä¸Šï¼Œè‹¥é‡ä¸Šé›¨é›ªæ¹¿æ¶¦å¤©æ°”，电网系统è°æŒ¯ï¼Œéå—雷击过电压时，就会å‘生套管闪络放电或爆炸ã€?/span></p>
<p> </p>
<p><span style="font-size: 16px">　　3)紧固或æ¾åŠ¨å˜åŽ‹å™¨çš„引线螺帽时，用力ä¸å‡ä½¿å¯¼ç”µèžºæ†è·Ÿç€è½¬åŠ¨ï¼Œå¯¼è‡´å˜åŽ‹å™¨å†…部高压线圈引线æ‰æ–æˆ–ä½ŽåŽ‹å¼•å‡ºçš„è½¯é“œç‰‡ç›¸ç¢°é€ æˆç›¸é—´çŸè·¯ã€?/span></p>
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<p><span style="font-size: 16px">　　4)åŠèŠ¯æ£€ä¿®æ—¶æ²¡æœ‰æŒ‰æ£€ä¿®è§„程åŠå·¥è‰ºè§„范进行，ç»å¸¸ä¸æ…Žå°†çº¿åœˆã€å¼•çº¿ã€åˆ†æŽ¥å¼€å…³ç‰å¤„çš„ç»ç¼˜ç ´å或将工具é—忘在å˜åŽ‹å™¨å†…，轻则å‘生闪çƒæ”¾ç”µçŽ°è±¡ï¼Œé‡åˆ™çŸè·¯æŽ¥åœ°ï¼ŒæŸåå˜åŽ‹å™¨ã€?é…电å˜åŽ‹å™¨é«˜ã€ä½ŽåŽ‹ä¸¤ä¾§æ— ä¿é™©ã€‚有的虽然已ç»è£…上跌è½å¼ç†”æ–器和羊角ä¿é™©ï¼Œä½†å…¶ç†”ä¸å¤šæ˜¯é‡‡ç”¨é“或铜ä¸ä»£æ›¿ï¼Œè‡´ä½¿ä½ŽåŽ‹çŸè·¯æˆ–过载时，熔ä¸æ— 法æ£å¸¸ç†”æ–而烧æ¯å˜åŽ‹å™¨ã€?/span></p>
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<p><span style="font-size: 16px">　　5)é…电å˜åŽ‹å™¨çš„高ã€ä½Žç†”ä¸é…ç½®ä¸å½“，å˜åŽ‹å™¨ä¸Šçš„熔ä¸æ™®éå˜åœ¨ç€é…ç½®è¿‡å¤§çš„çŽ°è±¡ï¼Œä»Žè€Œé€ æˆäº†é…电å˜åŽ‹å™¨ä¸¥é‡è¿‡è½½æ—¶ï¼Œçƒ§æ¯å˜åŽ‹å™¨ã€?/span></p>
<p> </p>
<p><span style="font-size: 16px">　　6)由于å†?/span><span style="font-size: 16px">æ‘照明线路较多，大多数åˆæ˜¯é‡‡ç”¨å•ç›¸ä¾›ç”µï¼Œå†åŠ 上施工ä¸è·³çº¿çš„éšæ„性和管ç†ä¸åˆ°ä½ï¼Œé€ æˆäº†é…å˜è´Ÿè·çš„å相è¿è¡Œã€‚临时使用，致使æŸç›¸çº¿åœˆç»ç¼˜è€åŒ–而烧æ¯å˜åŽ‹å™¨ã€?/span></p>
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<p><span style="font-size: 16px">　　3ã€åˆ†æŽ¥å¼€å…³ã€?/span></p>
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<p><span style="font-size: 16px">　　1)ç§è‡ªè°ƒèŠ‚分接开关，由于冬å¤ä¸¤å£çš„用电负è·å·®åˆ«å¤§ï¼Œç”µåŽ‹çš„高低å˜åŒ–å¤§ã€‚å› è€Œæœ‰äº›å†œæ‘å’Œä¼ä¸šçš„电工ä¸ç»ç”µåŠ›ä¿®è¯•éƒ¨é—¨è¯•éªŒè°ƒæ•´è€Œç§è‡ªè°ƒèŠ‚åˆ†æŽ¥å¼€å…³ï¼Œé€ æˆé…å˜åˆ†æŽ¥å¼€å…³ä¸åˆ°ä½ï¼ŒæŽ¥è§¦ä¸è‰¯è€Œçƒ§æ¯ã€?/span></p>
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<p><span style="font-size: 16px">　　2)分接开关质é‡å·®ï¼Œç»“æž„ä¸åˆç†ï¼ŒåŽ‹åŠ›ä¸å¤Ÿï¼ŒæŽ¥è§¦ä¸å¯é ，外部å—è½®ä½ç½®ä¸Žå†…部实际ä½ç½®ä¸å®Œå…¨ä¸€è‡´ï¼Œå¼•èµ·æ˜Ÿå½¢åŠ¨è§¦å¤´ä½ç½®ä¸å®Œå…¨æŽ¥è§¦ï¼Œé”™ä½çš„动ã€é™è§¦å¤´ä½¿ä¸¤æŠ½å¤´ä¹‹é—´çš„ç»ç¼˜è·ç¦»å˜å°ï¼Œå¹¶åœ¨ä¸¤æŠ½å¤´ä¹‹é—´çš„电势作用下å‘生çŸè·¯æˆ–对地放电，çŸè·¯ç”µæµå¾ˆå¿«å°±ä¼šæŠŠæŠ½å¤´çº¿åŒçƒ§æ¯ï¼Œç”šè‡³å¯¼è‡´æ•´ä¸ªç»•ç»„æŸåã€?/span></p>
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<p><span style="font-size: 16px">　　3)渗油是å˜åŽ‹å™¨æœ€ä¸ºç½•è§çš„</span><span style="font-size: 16px">外表异常现象，由于å˜åŽ‹å™¨æœ¬ä½“内充满了油，å„连接部ä½å¤„都有胶ç ã€èƒ¶åž«ä»¥é˜²æ¢æ²¹çš„渗æ¼ã€‚ç»è¿‡é•¿æ—¶é—´çš„è¿è¡Œï¼Œä¼šä½¿å˜åŽ‹å™¨ä¸çš„æŸäº›èƒ¶ç ã€èƒ¶åž«è€åŒ–龟裂而引起渗油，从而导致ç»ç¼˜å—æ½®åŽæ€§èƒ½ä¸‹é™ï¼Œæ”¾ç”µçŸè·¯ï¼Œçƒ§æ¯å˜åŽ‹å™¨ã€?/span></p>
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