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target="_blank">案例应用</a> >> <span>正文</span></div> <!-- main_content begin--> <div class="maincontent"> <!-- left begin --> <div class="news_left"> <div class="brand_news_details"> <h1>专题åQšæ™ƒç”늚„危害及抗晃电的技术措æ–?/h1><table style="border-bottom:1px dotted #e4e4e4;" align="center"><tr><td><div class="news_mes">文章来源åQšã€æœ¬ç«™åŽŸåˆ›ã€?作者:南京国高甉|°” 点击åQ?span id="HitNum"></span>‹Æ?旉™—´åQ?span id="dTime">2021/1/28 17:47:12</span><input type="hidden" id="ID" value="100923320"/><input type="hidden" id="TypeID" value="2"/></div> </td> <td><div id="ckepop"></div></td></tr></table><div id="Content" style="display:none;">[专题åQšæ™ƒç”늚„危害及抗晃电的技术措施]:【摘要】简要概˜qîC»€ä¹ˆæ˜¯æ™ƒç”µåQŒæ™ƒç”µå¯¹å¤§åž‹˜qžç®‹åž‹ç”Ÿäº§ä¼ä¸šçš„用电危害åQŒæŠ—晃电的技术措施,抗晃电装¾|®çš„特点以及工作原理ã€?【关键词】晃电,甉|œºæŠ—晃电,ç”늽‘晃电危害åQŒè‡ªå¯åŠ¨ 一、晃ç”늚„概念常规意义上“晃电”是æŒ?..</div><div class="brand_news_con"><p class="MsoNormal"> 【摘要】简要概˜qîC»€ä¹ˆæ˜¯æ™ƒç”µåQŒæ™ƒç”µå¯¹å¤§åž‹˜qžç®‹åž‹ç”Ÿäº§ä¼ä¸šçš„用电危害åQŒæŠ—晃电的技术措施,抗晃电装¾|®çš„特点以及工作原理ã€?</p> <p class="MsoNormal">   </p> <p class="MsoNormal"> 【关键词】晃电,甉|œºæŠ—晃电,ç”늽‘晃电危害åQŒè‡ªå¯åŠ¨ </p> <p class="MsoNormal">   </p> <p class="MsoNormal"> <b>一、晃ç”늚„概念</b><b></b> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> <span>常规意义ä¸?/span>“晃电”是指因雷击、瞬间短路或其他原因引è“vç”늽‘电压波动或短时断ç”늚„现象åQŒå…¶ä¸­ç”µåŽ‹æš‚降是指电压有效值降至额定工作电压的<span>10%~90%</span><span>åQŒæŒ¾l­æ—¶é—´åœ¨</span><span>10ms~600ms</span><span>的晃ç”üc€?/span> </p> <p class="MsoNormal">   </p> <p class="MsoNormal"> <b>二、晃ç”늚„危害</b><b></b> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> <span>晃电造成的危害主要包括以下几¿Uã€?/span> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> 1<span>åQ‰ç”±äºŽæ™ƒç”µé€ æˆç”µåŽ‹é™ä½ŽåQŒè¿è¡Œçš„甉|œºåœ¨ä¿è¯ç›¸åŒå‡ºåŠ›çš„条äšg下,甉|µéšä¹‹å¢žå¤§åQŒå®¹æ˜“引èµïL”µæœºç»•¾l„过热,½Iºæ°”开兟뀁接触器触头发热½{‰ï¼Œä»Žè€Œå¼•å‘设备故障ã€?/span> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> 2<span>åQ‰åœ¨ä½¿ç”¨<a target="_blank">变频å™?/a>控制的场合,ç”׃ºŽä¸€èˆ¬çš„变频器都å…ähœ‰˜q‡åŽ‹ã€å¤±åŽ‹å’Œçž¬é—´åœç”µçš„保护功能,在电源晃电较为强烈时åQŒæœ‰å¯èƒ½ä½¿å˜é¢‘器来低电压保护停止˜qè¡Œã€?/span> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> 3<span>åQ‰æ™ƒç”µå‘生时åQŒç”±äºŽç”µåŽ‹çš„降低åQŒå¯èƒ½ä¼šä½¿æŽ¥è§¦å™¨¾U¿åœˆå¯šw“èŠ¯çš„吸力ž®äºŽé‡Šæ”¾å¼¹ç°§çš„弹力ä‹É接触器释放,从而造成大量电动机的跳闸åQŒä¸¥é‡å¨èƒè£…¾|®å®‰å…¨ç”Ÿäº§ã€?/span> </p> <p class="MsoNormal">   </p> <p class="MsoNormal"> <b>三、抗晃电技术介¾l?/b><b></b> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> <span>企业配电一般由</span>35KV<span>æˆ?/span><span>10KV</span><span>˜q›çº¿˜q›è¡Œåˆ†é…å’Œå˜ç”µï¼Œ˜qè¡Œä¸­é«˜ã€ä½ŽåŽ‹ç³»¾lŸåŠ¨æ€è€¦åˆåQŒç”µåŽ‹æ‰°åŠ¨ä¸»è¦ç”±åŒºå¤–ç”늽‘引è“våQŒçŽ°åœºç»éªŒè¡¨æ˜Žï¼Œæ•æ„Ÿè®‘Ö¤‡ä¸»è¦æœ‰é«˜ã€ä½ŽåŽ‹å˜é¢‘器、电机等åQ?/span><span>80ms</span><span>的电¾|‘扰动èƒö以ä‹É敏感讑֤‡åœæœºåQŒå¿«é€Ÿç²¾å‡†çš„扰动识别非常重要åQŒåŒæ—¶ä½ŽåŽ‹å…³é”®è®¾å¤‡é…åˆé«˜åŽ‹åˆ‡æ¢ï¼Œä½ŽåŽ‹½I¿è¶Šå’ŒæŠ—晃电¾pȝ»ŸåšåŽå¤‡ä¿éšœå’Œæ”¯æ’‘ã€?/span> </p> <p class="MsoNormal">   </p> <p class="p"> <b>高压˜q›çº¿ä¾?/b>åQ?</p> <p class="p" style="margin-left:0.0000pt;text-indent:21.0000pt;"> <span>配备</span>FSC<span>中低压无扰动快切柜,通过核心¾pȝ»Ÿ</span><span>DCM635</span><span>¾pÕdˆ—无扰动快切装¾|®ä»¥å?/span><span>PBG</span><span>相控高速真½I?a target="_blank">断èµ\å™?/a>åQŒå®Œæˆ?/span>è¾?span>å¿?/span>15ms<span>¾_‘Ö‡†æ— æ‰°å¿«é€Ÿåˆ‡æ¢ã€?/span><br />       DCM635<span>无扰快切装置对系¾lŸè¿è¡ŒçŠ¶æ€é«˜é€Ÿè¯†åˆ«ï¼Œå¯¹ç”µæºæ‰°åŠ¨çš„模型˜q›è¡Œ¾_‘Ö‡†åˆ¤æ–­åQŒå…·æœ‰ä¸€é”®æ‰‹åŠ¨å€’闸、保护è“v动、失压è“v动、误跌™“v动、无‹¹è“v动、逆功率è“v动和频压异常多种起动方式åQŒé‡‡ç”¨å¿«åˆ‡ã€åŒæœŸæ•èŽøP¼ŒŒD‹åŽ‹å’Œé•¿å»¶æ—¶ä¼˜å…ˆ½{–略切换。具有智能区内外故障åQŒæ‰°åŠ¨è¯†åˆ«åŠå…¨æ¯å½•æ‡L功能åQŒåŒæ—¶è®¾æœ‰æ‰“印接口、串行口和以太网通信端口用于˜qœç¨‹¾l´æŠ¤å’Œè®¾å¤‡ç®¡ç†ã€?/span><br />       PBG<span>相控高速真½Iºæ–­è·¯å™¨åQŒé‡‡ç”¨åˆ†ç›¸ç²¾å‡†åˆ†åˆæŽ§åˆ¶åŽŸç†åŠæ°¸ç£é©±åŠ¨æŠ€æœ¯æœºæž„出力特性接˜q‘理惛_‡ºåŠ›ç‰¹æ€§ï¼Œæœºæ¢°ç”׃ºŽé‡‡ç”¨åˆé€‚相位点开合,操作时大òq…度减少操作˜q‡ç”µåŽ‹å’Œåˆé—¸æ¶ŒæµåQŒé…å?/span><span>DCM635</span><span>无扰动快速切换装¾|®å®Œæˆæ— æ‰°åŠ¨å¿«é€Ÿåˆ‡æ¢åŠŸèƒ?/span>ã€?</p> <p class="p">   </p> <p class="p"> <b>低压˜q›çº¿åŠç”µæœø™´Ÿè½?/b>åQ?</p> <p class="p" style="text-indent:21.0000pt;"> <span>在低压进¾U¿æˆ–联络开兌™£…设æ€Èº¿å¼?/span>DCMT<span>自动切换¾pȝ»Ÿè£…ç½®å…ähœ‰ 合环操作、一键顺控功èƒ?åQŒè‡ªåŠ¨åˆ‡æ¢å®Œæˆå¤‡ç”¨ç”µæºæŠ•åˆ‡ï¼Œä¸ÞZ½ŽåŽ‹è´Ÿè½½æä¾›åŸº¼‹€ä¿éšœã€?/span><br />     <span>关键甉|œºè´Ÿè²è£…设</span>DCM621KH<span>抗晃甉|¨¡å—,该系列模块适用于直接è“v动ã€?变频器、èÊY起动½{?åQŒé€šè¿‡å¯¹ç”µæœø™¿è¡ŒçŠ¶æ€ç²¾å‡†è¯†åˆ«ï¼Œæ™ƒç”µå‘生时自动按照再èµäh—¶é—´åˆ†æ‰¹å†èµ·åŠ¨åQŒå…·æœ‰æŽ¥¾U¿ç®€å•ï¼Œ¼‚å¸å¼å®‰è£…方便,长期˜qè¡Œå¯é ½{‰ä¼˜ç‚V€?/span> </p> <p class="MsoNormal" style="text-indent:21.0000pt;">  DCM621BC<span>¾l¼åˆåž‹æŠ—晃模块,兼具控制回èµ\保持和再起动功能åQŒé€‚用于较大型直接起动、变频器、èÊY起动回èµ\甉|œºåQŒé‡‡ç”¨äº¤ç›´äº¤å¤§åŠŸçŽ‡æ’‹¹æŠ€æœ¯ï¼Œä¸å—接触器功率限制。该¾pÕdˆ—模块内部配有­‘…çñ”电容及充攄¡”µ¾pȝ»ŸåQŒæ­£å¸æ€º¤‹¹ä¾›ç”‰|™ƒç”늛´‹¹ä¿æŒï¼Œä»Žæ ¹æœ¬ä¸Šè§£å†³ä¿æŒå¼æŠ—晃电模块åQŒä¸€æ—¦è£…¾|®æ•…障无法è“v机的问题。äñ”品具有全息故障录波功能电压扰动æ‡L形、晃甉|‡L形自动存储。同时模块提供远½E‹è¯Šæ–­ã€è¿œ½E‹å½•æ³¢åˆ†æžåŠŸèƒ½ï¼Œä¸ºç¬¬ä¸‰ä»£æŠ—晃甉|¨¡å—的引领者ã€?/span> </p> <p class="MsoNormal"> <br /> <b> 3.1 DCM621KH<span>再è“v式抗晃电模块的特ç‚?/span></b><b></b> </p> <p class="MsoNormal"> <b> </b> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ☆è“v动电æœø™‡ªåŠ¨å¾…机,手动停èžR自动攄¡”µåQ?</p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ☆磁吸安装,可靠灉|´»åQ?</p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ☆接插端子,¾l´æŠ¤ä¾¿æ·åQ?</p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ☆无冲击再è“våQŒä¿æŠ¤ç”µæœºç¨³å®šç”µ¾|‘ï¼› </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ☆晃甉|—¶é—´é•¿è¾?span>9S</span><span>åQŒä¸”易修改;</span> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ☆再起动延时可修改,利于分批多电机环境; </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ☆电压æ‡L动未引è“v接触器释放,不会å¯ÒŽŠ—晃模块äñ”生媄响ã€?</p> <p class="MsoNormal" style="text-indent:21.0000pt;">   </p> <p class="MsoNormal">  <b>3.2 DCM621BC<span>¾l¼åˆæŠ—晃甉|¨¡å—的特点</span></b><b></b> </p> <p class="MsoNormal"> <b> </b> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ☆保持式åQˆæ¨¡å—正常)<span>+</span><span>再è“v式(模块异常åQ‰ï¼Œå¯é æ€§é«˜åQ?/span> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ☆交‹¹è“v动,直流保持åQŒç¨³å®šæ€§å¥½åQ?</p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ☆接触器保持甉|µè‡ªé€‚应åQŒå…¼å®ÒŽ€§å¼ºåQ?</p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ☆直‹¹å›žè·¯å¼‚常,自动˜q›å…¥å†è“v式; </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ☆三相全监视åQŒå•ç›¸æ•…障可录æ‡LåQ?</p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ☆晃甉|—¶é—´å¯è¾?span>5S</span><span>åQŒä¸”易修改;</span> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ☆信可‚¾“入、控制出口可¾~–程åQŒä¾¿äºŽé…å?span>DCS</span><span>åQ?/span> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ☆全息录波,扰动看得见ã€?</p> <p class="MsoNormal" style="text-indent:21.0000pt;">   </p> <p class="MsoNormal"> <b> 3.</b><b>3</b><b> DCM621BC<span>¾l¼åˆæŠ—晃甉|¨¡å—çš„</span></b><b>工作原理</b><b></b> </p> <p class="MsoNormal">   </p> <p class="MsoNormal"> <b>交流起动åQ?/b> </p> <p class="MsoNormal"> <span>正常起动æ—Óž¼ŒæŒ‰ä¸‹</span>ST<span>起动按钮åQŒç”µ‹¹ç»æŠ—晃仪常闭节点,</span><span>KM</span><span>¾U¿åœˆå¾—电åQ?/span><span>KM</span><span>节点自动保持åQŒæŽ§åˆ¶å›žè·¯è“v动,抗晃仪监‹¹‹å›žè·¯å·¥ä½œç”µ‹¹ä»¥åŠå›žè·¯æŽ§åˆ¶ç”µåŽ‹ã€?/span> </p> <p class="MsoNormal">   </p> <p class="MsoNormal"> <b>机械˜q‡é›¶åˆ‡æ¢åQ?/b><b></b> </p> <p class="MsoNormal"> <span>交流起动¾l“束后,¾l?/span>10<span>¿U’åšgæ—Óž¼Œé€šè¿‡æœºæ¢°˜q‡é›¶ä¸“有切换技术将</span><span>KM</span><span>甉|ºç”׃º¤‹¹åˆ‡æ¢äؓ直流åQŒæŠ—晃äÈA自动调节恒流源以保持</span><span>KM</span><span>可靠的吸持,抗晃仪进入节能抗晃状态ã€?/span> </p> <p class="MsoNormal">   </p> <p class="MsoNormal"> <b>晃电保持åQ?/b><b></b> </p> <p class="MsoNormal"> <span>当系¾lŸå‡ºçŽ°æ™ƒç”‰|—¶åQŒæŠ—晃äÈA自动˜q›å…¥å½•æ‡LåQŒåƈ记录晃电时刻åQŒå†…部超¾U§ç”µå®¹è‡ªåŠ¨è¾“出直‹¹æ’‹¹æºåQŒè¶…¾U§ç”µå®¹å’Œå†…部直流˜q‡æ¸¡åˆ‡æ¢</span>200<span>¾U³ç§’左右åQŒç³»¾lŸä¸­è¯¥æ—¶é—´å®Œå…¨å¿½ç•¥ã€?/span> </p> <p class="MsoNormal">   </p> <p class="MsoNormal"> <b>异常再è“v式:</b><b></b> </p> <p class="MsoNormal"> 抗晃仪实时动态监视交、直‹¹ç”µåŽ‹å’Œç”‰|µåQŒç›´‹¹è¾“出异常时åQŒç³»¾lŸè‡ªåŠ¨è¿›å…¥å†èµ·å¼æŠ—晃模式åQŒæŠ¥è­¦ç¯ç‚¹äº®åQŒç›¸å…ÏxŠ¥è­?a target="_blank">¾l§ç”µå™?/a>闭合åQŒæé†’运‹‚€äººå‘˜‹‚€ä¿®ã€?</p> <p class="MsoNormal">   </p> <p class="MsoNormal"> 四ã€?b>抗晃甉|Š€æœ¯åº”用的意义</b><b></b> </p> <p class="MsoNormal">   </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> <span>ç”׃ºŽçŽîC»£åŒ–工矿企业生产装¾|®çš„规模­‘Šæ¥­‘Šå¤§åQŒæ™ƒç”‰|Œ¾l­æ—¶é—´è™½ç„¶æ¯”较短åQŒä½†å¯¹ç”Ÿäº§çš„影响却十分巨大。瞬间的电压波动ž®†é€ æˆå¤§é‡ç”µåŠ¨æœø™Ÿ©é—¸ï¼Œè®‘Ö¤‡åœæœºã€‚电¾|‘电压恢复后甉|œºä¸èƒ½è‡ªè¡Œæ¢å¤˜qè¡ŒåQŒå¯¼è‡´è¿ž¾l­ç”Ÿäº§è¿‡½E‹ç´Šä¹±ï¼Œòq¶æœ‰å¯èƒ½é€ æˆç”Ÿäñ”及设备事故。对于大型装¾|®æ¥è¯ß_¼Œå¦‚果人工˜q›è¡Œæ¢å¤åQŒèŠ±è´¹çš„æ—‰™—´æ¯”较长,而对于一些无人值守的装¾|®ï¼Œæ¢å¤çš„时间就更长。这对于çŸÏxÑa、化工等˜qžç®‹ç”Ÿäñ”装置来说åQŒäñ”生的诸如安全、环ä¿?/div><div class="meneame"><span class="disabled">< </span><span class="current">1</span> <a href="AD100923320_2.html">2</a><span class="disabled"><a href="AD100923320_2.html">> </a></span></div> <div style="text-align: center;padding-top: 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