75kw电机380v长2000米用多大的电缆
75KW\u7535\u673a\u7535\u538b380V\u957f600\u7c73\u6211\u8be5\u7528\u591a\u5927\u7684\u7535\u7f06\u6839\u636e\u7535\u6d41\u5927\u5c0f\u9009\u7535\u7ebf\uff1a10\u4e0b\u4e94\uff0c100\u4e0a\u4e8c\uff0c16\uff0c25\uff0c\u56db\u300235\uff0c50\uff0c\u4e09\u300270\uff0c95\uff0c\u4e8c\u500d\u534a\u3002\u7a7f\u7ba1\u6e29\u5ea6\u516b\u4e5d\u6298\uff0c\u88f8\u7ebf\u5347\u7ea7\u7b97\uff0c\u94dc\u7ebf\u5347\u7ea7\u7b97\u300210mm2\u4ee5\u4e0b\u7684\u7535\u7ebf\uff0c\u4e58\u4ee5\u4e94\uff0c\u4f9d\u6b21\u8ba1\u7b97\u3002
\u5df2\u77e5\u529f\u7387\uff0c\u4f30\u7b97\u7535\u6d41: \u4e09\u76f8\u9a6c\u8fbe1KW,\u7535\u6d41\u4e3a2A.\u4e09\u76f8\u5bb9\u91cfKVA,\u53ef\u6309\u4e00\u500d\u534a\u3002\u7535\u70ed\u7535\u5bb9\u548c\u7167\u660e\uff0c\u7b49\u540c\u4e09\u76f8\u770b\u3002\u5355\u76f81KW,\u7535\u6d41\u4e3a4.55A.\u4e24\u76f8380\uff0c2.5A\u7b97\u3002
\u3000\u3000380V\u7535\u538b\uff0c75KW\u7535\u673a\uff0c\u752850\u5e73\u65b9\u7684\u94dc\u7ebf\u3002
\u3000\u3000\u7535\u6d41\u4e3aI=P/(1.732Ucos\u03c6)=75/(1.732x0.38x0.75)=152A\uff08\u7528\u6807\u51c6\u4e09\u76f8\u5e02\u7535\u8ba1\u7b97\uff0ccos\u03c6\u662f\u8d1f\u8f7d\u529f\u7387\u56e0\u6570\uff0c\u4e00\u822c\u7535\u673a\u53d60.75 \uff09\u3002
\u3000\u3000\u67e5\u300a\u5de5\u7a0b\u5e38\u7528\u6570\u636e\u901f\u67e5\u624b\u518c\u300b\u6709\uff1a
\u3000\u3000a.1~3kV,40\u2103,\u9ecf\u6027\u6d78\u6e0d\u7eb8\u6709\u94a2\u94e0\u62a4\u5957\u7535\u7f0650\u5e73\u65b9\u94dd\u7ebf\u7684\u5141\u8bb8\u8f7d\u6d41\u91cf\u4e3a\uff1a126A\u3002\u6298\u5408\u94dc\u7ebf\u4e3a162A\uff08126x1.29=162A\uff09\uff0c\u6ee1\u8db3152A\u8981\u6c42\u3002
\u3000\u3000b.1~3kV,40\u2103,\u805a\u6c2f\u4e59\u70ef\u65e0\u94a2\u94e0\u62a4\u5957\u7535\u7f0650\u5e73\u65b9\u94dd\u7ebf\u7684\u5141\u8bb8\u8f7d\u6d41\u91cf\u4e3a\uff1a134A\u3002\u6298\u5408\u94dc\u7ebf\u4e3a172A\uff08126x1.29=172A\uff09\uff0c\u6ee1\u8db3152A\u8981\u6c42\u3002\u3002
\u3000\u3000\u56e0\u6b64\u53ef\u4ee5\u9009\u752850\u5e73\u65b9\u7684\u94dc\u7535\u7f06\u3002
用95的铜缆
绛旓細棰濆畾鍔熺巼鏄75KW鐢靛帇380V鐨勭數鍔ㄦ満锛孖n=75脳2=150锛岀數娴佽〃鐨勯噺绋嬶紙X锛夊彲鏍规嵁2X/3=150寰楋紙X=225锛夛紝鍙栬繎浼煎煎彲閫200/5鐨勭數娴佽〃銆傜數娴佷簰鎰熷櫒閰嶇敤200/5锛屼富鐢垫簮鏂矾鍣ㄥ彲閫(1.1-1.5)In=165-225A鐨勭┖姘斿紑鍏,浜ゆ祦鎺ヨЕ鍣ㄧ殑鏁村畾鐢垫祦=鐢靛姩鏈洪瀹氱數娴,鏁呴塁J10-150,CJT1-150绛夌瓑 ...
绛旓細鍙互鍛婅瘔浣狅紝涓ゅ崈浜旂櫨绫崇殑璺濈锛屾瘡甯﹀姩涓涓崈鐡︾殑璐熻浇锛岄渶瑕佷節涓钩鏂规绫崇殑閾濈嚎鎴栧叚骞虫柟姣背鐨勯摐绾裤傞摑绾块渶瑕675骞虫柟姣背鐨勩傞摐绾块渶瑕 450 骞虫柟姣背鐨勩傝繖涔堥暱鐨勮窛绂伙紝缁忔祹銆侀珮鏁堛佺殑鏂规硶鏄灦璁鹃珮鍘嬶紝鍐嶉氳繃鐢靛姏鍙樺帇鍣ㄥ彉閫併
绛旓細鐢70骞虫柟閾滅嚎瓒崇煟銆
绛旓細鐢靛帇380V锛75kw鍔熺巼鐢垫祦绾150A銆傜┖寮鐨勯瀹氱數娴佷竴鑸寜鐓ц礋杞界數娴佺殑1.5-2鍊嶅乏鍙抽夋嫨銆傚洜涓鐢靛姩鏈鏄姩鍔涜礋杞斤紝鏈夊啿鍑荤數娴侊紝寤鸿寮鍏抽夋嫨25A鎴栬32A鐨勫皬鍨3P鏂矾鍣ㄣ傜數鍔ㄦ満鐢垫祦璁＄畻鍏紡锛涘姛鐜7500W/鐢靛帇380V/1.732/鍔熺巼鍥犳暟/鏁堢巼=鐢垫祦銆
绛旓細甯哥敤涓夌櫨鍏礋鑽凤紝涓涓崈鐡︿袱瀹夊煿(KW/2A)锛屼綆鍘嬪叚鐧惧叚璐熻嵎锛屽崈鐡︿竴鐐逛簩瀹夊煿(KW/1.2A)锛涗竴鍗冧竴鐧惧洓鍗佷紡锛屾瘡涓崈鐡︾偣鍏竷锛圞W/0.67A锛夛紱楂樺帇涓夊崈浼忚礋鑽凤紱鍥涗釜鍗冪摝涓瀹夊煿(4KW/1A)锛380V鐢靛帇涓嬶紝75鍗冪摝鐨勬弧杞界數娴佷负150A銆傚彲閫夌數缂嗕负50骞虫柟鐨勯摐鑺嚎锛屽叾闀挎椂闂村厑璁搁瀹氫负173A锛岀數缂嗘埅闈篃鏈夊彛璇銆
绛旓細75kw 鐢垫満鐢垫祦鍦142A宸﹀彸锛屾寜鐢垫祦閲囩敤75骞虫柟鍙婁互涓婇摐绾匡紝鐢变簬鏄暱璺濈渚涚數鎺ㄨ崘95骞抽摐绾匡紝鍦扮嚎閲囩敤50鐨勫氨琛屼簡锛岃繍琛岃捣鏉ョ粷瀵规病闂鈥︹75骞崇殑鏃堕棿闀跨殑璇濓紝楂樻俯鍙堢┛绾跨鐨勮瘽锛屾椂闂翠竴闀夸細鏈夌儳姣佺殑鍗遍櫓
绛旓細鐢垫満棰濇祦涓150A锛岀┖寮閫塂Z20---250, 鑴辨墸鍣200A, 鎺ヨЕ鍣ㄩ塁J20---250A 鑻ラ160瀹夋樉灏 锛岀儹缁佺數鍣ㄩ125鍒200瀹夈傛暣瀹160瀹夛紝绔瓙鐢95骞虫柟鍗冲彲銆傝繖鏂规瀵垮懡闀跨渷閽便傚伐浣滅數娴佹槸160瀹夈傜┖寮瑕250瀹夌殑銆傜儹缁х數鍣ㄨ120瀹夌殑璋冨湪90瀹夊銆傛帴瑙﹀櫒瑕160瀹夌殑銆傚惎鍔ㄧ殑閭ｄ釜鐢125瀹夌殑銆傜嚎鐢50鐨勭瀛愪篃鏄50...
绛旓細杩欎箞杩滅殑璺濈涓嶈兘鐢ㄤ綆鍘嬩緵鐢碉紝绾挎崯澶ぇ銆傜敤240mm²鐨勯摐绾匡紝240mm²鐨勯摐绾跨數闃籖=蟻(L/S)=0.017X2000/240=0.14惟 U鎹=152X0.014=21V 杩愯鐢靛帇380-21=359V,鍕夊己鍙互杩愯銆傚鏋滅敤300mm²,鍙互姝ｅ父宸ヤ綔銆
绛旓細380V鐢靛帇锛75KW鐢垫満锛岀敤50骞虫柟鐨勯摐绾裤傜數娴佷负I=P/(1.732Ucos蠁)=75/(1.732x0.38x0.75)=152A锛堢敤鏍囧噯涓夌浉甯傜數璁＄畻锛宑os蠁鏄礋杞藉姛鐜囧洜鏁帮紝涓鑸數鏈哄彇0.75 锛夈傛煡銆婂伐绋嬪父鐢ㄦ暟鎹熸煡鎵嬪唽銆嬫湁锛歛.1~3kV,40鈩,榛忔ф蹈娓嶇焊鏈夐挗閾犳姢濂楃數缂50骞虫柟閾濈嚎鐨勫厑璁歌浇娴侀噺涓猴細126A銆傛姌鍚堥摐绾夸负162A锛126...
绛旓細娌℃槑鐧戒綘瑕侀棶浠涔堬紝鏃㈢劧鏄彉棰戣皟閫燂紝閭ｅ氨闇瑕佸彉棰戣蒋鍚姩鍣ㄣ380V鐨勭數鏈鐢ㄧ殑閮芥槸灏忓瀷鍙橀鍣紝鑰屼笖鏈変笉鍚岀殑鍘傚銆備笉杩囷紝鎴戝垰鍒氭帴瑙﹁繃鏂借愬痉鐨勮蒋鍚骇鍝侊紝鍦ㄥ惎鍔ㄨ繃绋嬩腑鐢垫満鍚姩涓嶈捣鏉ワ紝鏈鍚庢妸鍙橀鍣ㄥ唴閮ㄧ殑鍚姩鍙傛暟閲嶆柊璁惧畾鎵嶅畬鎴愬惎鍔ㄣ
