245千瓦绕线式电机转子电流343应该用多粗的电缆？ 245千瓦的三相电机用多大的电缆线
245\u5343\u74e6\u7684\u7ed5\u7ebf\u5f0f\u5f02\u6b65\u7535\u52a8\u673a,\u5b9a\u5b50\u8f6c\u5b50\u5404\u7528\u591a\u5c11\u5e73\u65b9\u7684\u7ebf\uff1f
\u5b9a\u5b50\u7535\u6d41490A\u5de6\u53f3\uff0c\u8f6c\u5b50\u7535\u6d41\u5728350A\u5de6\u53f3\u3002\u5b9a\u5b50\u7528240\u5e73\u65b9\u6beb\u7c73\u7535\u7f06\uff0c\u8f6c\u5b50\u7528150\u5e73\u65b9\u6beb\u7c73\u7535\u7f06\u3002
\u8ba1\u7b97\u7535\u6d41\uff1aIjs=P/U/\u221a3/cos\u03c6=245000/380/1.732/0.85=438A
\u8003\u8651\u73af\u5883\u56e0\u7d20\u548c\u6577\u8bbe\u65b9\u5f0f\u7684\u5f71\u54cd\u755920\uff05\u7684\u4f59\u91cf\uff0c\u5373\uff1a438\u00d7\uff081+20\uff05\uff09=525.5A
\u9009\u7528240mm²\u94dc\u82af\u4ea4\u8054\u805a\u4e59\u70ef\u7edd\u7f18\u7535\u7f06\u5408\u9002\uff0c\u5b83\u5b89\u5168\u622a\u6d41\u91cf\u662f555A\uff1b\u5982\uff1aYJV-3\u00d7240+1\u00d7120
\u6216\u8005\u9009\u7528300mm²\u94dd\u82af\u4ea4\u8054\u805a\u4e59\u70ef\u7edd\u7f18\u7535\u7f06\u5408\u9002\uff0c\u5b83\u5b89\u5168\u622a\u6d41\u91cf\u662f498A\uff0c\u5982\uff1aYJLV-3\u00d7300+1\u00d7150\u3002
\u9009\u62e9\u7a7a\u6c14\u65ad\u8def\u5668\u7684\u989d\u5b9a\u7535\u6d41\u5e94\u662f\u8ba1\u7b97\u7535\u6d41\u76841.1\uff5e1.5\u500d\uff0cIr=1.2Ijs=438\u00d71.2=525.5A,
\u9009\u62e9Ir=500A\u7684\u5851\u58f3\u5f0f\u7a7a\u6c14\u65ad\u8def\u5668\u5408\u9002\uff0c\u5982\uff1aNM1-630/3300 Ir=500A
绛旓細鐢垫満涓夌浉鐢垫祦鏈5%鐨勮宸紝鏄笉姝ｅ父鐨勶紝浣嗘寜鐓х浉鍏虫爣鍑嗘潵璇达紝杩欎釜鐢垫満杩樻槸鍚堟牸鐨勩傜數鏈轰笉绠℃槸绌鸿浇杩樻槸瀹炶浇鏃讹紝涓夌浉鐨勭數娴侀噺閮芥槸搴旇鐩哥瓑鐨勶紝鍙湁鍦ㄥ钩琛＄殑鏉′欢涓嬶紝鐢垫満鎵嶈兘姝ｅ父骞崇ǔ杩愯浆銆備絾鐢变簬缁曠嚎宸ヨ壓鍙婂叾瀹冪數鏈哄埗閫犲伐鑹虹殑鍘熷洜锛屼笁鐩稿瓨鍦ㄧ數娴佸樊鎬绘槸瀛樺湪鐨勩傛寜鐓ф爣鍑嗭紝鐢垫祦宸皬浜10%涓哄悎鏍笺
绛旓細245kw鐜舰鐢垫満杞瓙鐢靛帇鏄380v/400V銆傛牴鎹煡璇㈢浉鍏冲叕寮淇℃伅鏄剧ず锛氫綆鍘缁曠嚎鐢垫満245KW姘撮樆鍚姩鏌滀綆鍘嬬數鏈烘按闃绘煖锛岀數鍘嬬瓑绾у氨鏄380v/400V.鍏跺畠鐢靛帇绛夌骇闇瑕佸彟澶栬璁°
绛旓細鍏跺疄浣犵湅鐢垫満閾墝涓婇兘鏈夐瀹鐢垫祦鍊肩殑锛380V涓夌浉鐢垫満棰濆畾鐢垫祦鍦490A宸﹀彸锛岃嚦浜庡伐浣滅數娴佹槸240A杈惧埌鏈澶у艰繕鐪熶笉鐭ラ亾鏄牴鎹粈涔堢畻鍑烘潵鐨勶紝鍙嶆涓嶆槸鐢垫満鐨勫師鍥犮傞瀹氱數娴佽绠楀叕寮忥細Ie=P/锛堚垰3U*畏*COS蠁锛夛紝P--鐢靛姩鏈洪瀹氬姛鐜囷紝U--鐢靛姩鏈虹嚎鐢靛帇锛屛--鐢靛姩鏈烘弧杞芥椂鏁堢巼锛孋OS蠁---鐢靛姩鏈烘弧杞芥椂鍔熺巼鍥犳暟...
绛旓細245kw鐢靛姩鏈閰嶇敤鐢电紗璁＄畻锛氫笁鐩哥數鐢垫祦璁＄畻锛氬姛鐜囧洜鏁颁互0.85璁＄畻銆傚姛鐜嚸风數鍘嬅锋牴鍙3梅鍔熺巼鍥犳暟銆245KW梅380梅1.732梅0.85=437A 鏍规嵁鐢电嚎鐢垫祦瀵圭収琛紝鐢电紗鑷冲皯閫夋嫨240骞虫柟鐨勩
绛旓細閽堝245KW缁曠嚎寮忚浆瀛愮數鍔ㄦ満纰冲埛鍐呮俯搴﹂珮鐨勯棶棰橈紝鍙互灏濊瘯浠ヤ笅鍑犵鏁ｇ儹澶勭悊鏂规硶锛氬姞寮鐢垫満鐨勫喎鍗寸郴缁燂紝渚嬪澧炲姞鎴栦紭鍖栨暎鐑鎵囥佹按鍐风瓑鍐峰嵈璁惧銆傛彁楂樼數鏈虹殑鏁堢巼鍜岄檷浣庢崯鑰楋紝鍑忓皯鐢垫満鍐呴儴浜х敓鐨勭儹閲忋備緥濡傚姞寮鸿浆瀛愮殑鍔ㄥ钩琛″拰闈欏钩琛°佷紭鍖栧畾瀛愬拰杞瓙鐨勭璺瓑銆傛洿鎹㈢⒊鍒锋潗鏂欙紝渚嬪灏嗙⒊鍒锋潗鏂欐洿鎹负楂樼儹瀵兼ц兘鐨勬潗鏂...
绛旓細缁曠嚎寮忕數鏈45鍗冪摝,杞瓙鐢垫祦鏄伐浣滅數娴佺殑5-7鍊,鍚姩鐢垫祦鏄600A鍩瑰乏鍙炽傜粫绾垮紡涓夌浉寮傛鐢靛姩鏈虹殑璧峰姩 1.杞瓙鍥炶矾涓叉帴鐢甸樆璧峰姩銆傜粫绾垮紡涓夌浉寮傛鐢靛姩鏈哄彲浠ュ湪杞瓙鍥炶矾涓覆鍏ョ數闃昏繘琛岃捣鍔紝杩欐牱灏卞噺灏忎簡璧峰姩鐢垫祦銆備竴鑸噰鐢ㄨ捣鍔ㄥ彉闃诲櫒璧峰姩锛岃捣鍔ㄦ椂鍏ㄩ儴鐢甸樆涓插叆杞瓙鐢佃矾涓紝闅忕潃鐢靛姩鏈鸿浆閫熼愭笎鍔犲揩锛屽埄鐢ㄦ帶鍒跺櫒閫愮骇...
绛旓細涓鑸帶鍒跺湪鐢垫満棰濆畾鐢垫祦2鍊嶄互涓嬪惂锛屽洜涓缁曠嚎鏄數鏈虹殑鐢垫祦涓嶅厑璁歌秴杩囬瀹氱數娴佺殑2.5鍊嶃
绛旓細榧犵寮傛鐢靛姩鏈鐩存帴鍚姩鐨5--7鍊嶏紝浣嗘槸浣犵殑缁曠嚎寮鐨勫叿浣撶殑鐪嬩綘鐨勫惎鍔ㄦ柟娉曪紝瀵瑰惂銆傞鏁忓彉闃诲櫒锛屽樊涓嶅2鍊嶅乏鍙筹紝浣嗘槸鎸佺画鐨勬椂闂村拰鎵甯︾殑璐熻浇鏈夊叧绯伙紝璇烽棶浣犳槸瑕佹牴鎹捣鍔鐢垫祦閫夋嫨璁惧鍚楋紵
绛旓細??鍔熺巼涓嶅氨鏄數鍘嬩箻涓鐢垫祦鍚楋紵浣犵敤鐢ㄥ凡鐭ョ殑鍔熺巼闄や互鐢靛帇灏卞彲浠ヤ簡銆
绛旓細鎸夐渶瑕佺郴鏁版硶绠楋細鍏堝悗鍚姩锛屽惎鍔ㄥ嘲鍊鐢垫祦鎸132KW璁＄畻銆備竴鑸妸鎵鏈鐢垫満鐨勫姛鐜囧姞璧锋潵涔樹互涓涓郴鏁板氨鍙互浜嗭紝鏈哄姞宸ヨ涓氱郴鏁颁负0.14-0.25 鑱旂画杩愯緭琛屼笟0.60--0.65 杞ч挗琛屼笟0.3-0.4 椋庢満琛屼笟0.7--0.85 濡傛灉鏄粈涔堥兘鏈夋寜鏈澶х殑閭ｄ竴鍙扮畻銆傝繖杩樿鏍规嵁涓汉缁忛獙锛岃绠椾袱鍥炲氨浼氫簡銆傛渶鍚庤鑰冭檻瑁曢噺鍜...
