218kw380供电要多大电缆 功率380KW电压380V选用多大电缆怎么计算线
400KW\u3001380V\u53ef\u7528\u591a\u5927\u7535\u7f06\uff1f\u603b\u529f\u7387400kw\u7684\u7535\u6d41\u7ea6800A\uff0c\u75282\u6839\u94dc\u7ebf\u5e76\u7528\u65f6\u6bcf\u5e73\u65b9\u8f7d\u6d413A\u7b97\uff0c\u7528\u4e00\u6839\u94dc\u7ebf\u65f6\u6bcf\u5e73\u65b9\u8f7d\u6d412.5A\u7b97\u3002800/3\u2248270(\u5e73\u65b9)
\u7535\u7f06\u7684\u5b9a\u4e49\uff1a
\u5b9a\u4e491\uff1a\u7531\u4e00\u6839\u6216\u591a\u6839\u76f8\u4e92\u7edd\u7f18\u7684\u5bfc\u4f53\u548c\u5916\u5305\u7edd\u7f18\u4fdd\u62a4\u5c42\u5236\u6210\uff0c\u5c06\u7535\u529b\u6216\u4fe1\u606f\u4ece\u4e00\u5904\u4f20\u8f93\u5230\u53e6\u4e00\u5904\u7684\u5bfc\u7ebf\u3002
\u5b9a\u4e492\uff1a\u901a\u5e38\u662f\u7531\u51e0\u6839\u6216\u51e0\u7ec4\u5bfc\u7ebf\uff08\u6bcf\u7ec4\u81f3\u5c11\u4e24\u6839\uff09\u7ede\u5408\u800c\u6210\u7684\u7c7b\u4f3c\u7ef3\u7d22\u7684\u7535\u7f06,\u6bcf\u7ec4\u5bfc\u7ebf\u4e4b\u95f4\u76f8\u4e92\u7edd\u7f18,\u5e76\u5e38\u56f4\u7ed5\u7740\u4e00\u6839\u4e2d\u5fc3\u626d\u6210\uff0c\u6574\u4e2a\u5916\u9762\u5305\u6709\u9ad8\u5ea6\u7edd\u7f18\u7684\u8986\u76d6\u5c42\u3002\u7535\u7f06\u5177\u6709\u5185\u901a\u7535\uff0c\u5916\u7edd\u7f18\u7684\u7279\u5f81\u3002
\u7535\u7f06\u7684\u9009\u62e9\uff1a
1\u3001\u4f7f\u7528500V\u5355\u82af\u805a\u6c2f\u4e59\u70ef\u7edd\u7f18\u7535\u7ebf\uff08BV\u3001BVR)\uff0c185\u5e73\u65b9\u6beb\u7c73\u5728\u7a7a\u6c14\u4e2d\u6577\u8bbe\u957f\u671f\u8fde\u7eed\u8d1f\u8377\u5141\u8bb8\u8f7d\u6d41\u91cf429A\u3002\u53733X\uff082X185mm^2\uff09\uff08\u6bcf\u76f8185mm^2\u53cc\u5e76\uff09\u3002\u82e5\u7535\u7ebf\u6577\u8bbe\u5728\u7535\u7f06\u6c9f\u5185\u5219\u9700\u89813X\uff082X240mm^2)\uff0c\u5373\u6bcf\u76f8240mm^2\u53cc\u5e76\u3002\u63a5\u96f6\u3001\u63a5\u5730\u4f60\u81ea\u5df1\u8003\u8651\uff08\u53c2\u8003\u4e00\u6839185\u6216240\uff09\u3002\uff08\u8fde\u63a5\u8ddd\u79bb\u6bd4\u8f83\u77ed\u8003\u8651\u4f7f\u7528\u5355\u82af\u805a\u6c2f\u4e59\u70ef\u7edd\u7f18\u7535\u7ebf\uff09
2\u3001\u4f7f\u7528VV 0.6/1kV\u5355\u82af\u805a\u6c2f\u4e59\u70ef\u7edd\u7f18\u53ca\u62a4\u5957\u7535\u529b\u7535\u7f06\uff0c\u5728\u7a7a\u6c14\u4e2d\u6216\u7535\u7f06\u6c9f\u5185\u5747\u97003X\uff082X240mm^2)\uff0c\u5373\u6bcf\u76f8240mm^2\u53cc\u5e76\u3002 \u4f7f\u7528VLV 0.6/1kV\u5355\u94dd\u82af\u805a\u6c2f\u4e59\u70ef\u7edd\u7f18\u53ca\u62a4\u5957\u7535\u529b\u7535\u7f06\uff0c\u5728\u7a7a\u6c14\u4e2d\u97003X\uff082X300mm^2)\uff0c\u5373\u6bcf\u76f82X300mm^2\u53cc\u5e76\u3002\u7535\u7f06\u6c9f\u5185\u5747\u97003X\uff082X400mm^2)\uff0c\u5373\u6bcf\u76f82X400mm^2\u53cc\u5e76\u3002
3\u3001\u4f7f\u7528YJV0.6/1kV\u5355\uff08\u94dc\uff09\u82af\u4ea4\u8054\u805a\u4e59\u70ef\u7edd\u7f18\u805a\u6c2f\u4e59\u70ef\u62a4\u5957\u7535\u529b\u7535\u7f06\uff0c\u5728\u7a7a\u6c14\u4e2d\u6577\u8bbe\uff0c\u97003X\uff082X185mm^2)\uff0c\u5373\u6bcf\u76f8185mm^2\u53cc\u5e76\u3002\u5728\u7535\u7f06\u6c9f\u5185\uff0c\u7535\u7f06\u6c9f\u5185\u5747\u97003X\uff082X240mm^2)\uff0c\u5373\u6bcf\u76f82X240mm^2\u53cc\u5e76\u3002 \u4f7f\u7528YJLV0.6/1kV\u5355\uff08\u94dd\uff09\u82af\u4ea4\u8054\u805a\u4e59\u70ef\u7edd\u7f18\u805a\u6c2f\u4e59\u70ef\u62a4\u5957\u7535\u529b\u7535\u7f06\uff0c\u5728\u7a7a\u6c14\u4e2d\u6577\u8bbe\uff0c\u97003X\uff082X240mm^2)\uff0c\u5373\u6bcf\u76f8240mm^2\u53cc\u5e76\u3002\u5728\u7535\u7f06\u6c9f\u5185\uff0c\u7535\u7f06\u6c9f\u5185\u5747\u97003X\uff082X300mm^2)\uff0c\u5373\u6bcf\u76f82X300mm^2\u53cc\u5e76\u3002
4\u3001\u4f7f\u7528VV 0.6/1kV\u4e09\u82af\uff08\u62163+1) \u805a\u6c2f\u4e59\u70ef\u7edd\u7f18\u53ca\u62a4\u5957\u7535\u529b\u7535\u7f06\uff0c\u5728\u7a7a\u6c14\u4e2d\u97002X\uff083X240mm^2+1X120mm^2)\uff0c\u5373\u4e24\u6839\u7535\u7f06\u53cc\u5e76\u3002\u5728\u7535\u7f06\u6c9f\u5185\u97002X\uff083X300mm^2+1X150mm^2)\uff0c\u5373\u4e24\u6839\u7535\u7f06\u53cc\u5e76\u3002 \u4f7f\u7528VLV 0.6/1kV\u4e09\u94dd\u82af\uff08\u62163+1) \u805a\u6c2f\u4e59\u70ef\u7edd\u7f18\u53ca\u62a4\u5957\u7535\u529b\u7535\u7f06\uff0c\u5728\u7a7a\u6c14\u4e2d\u97002X\uff083X300mm^2+1X120mm^2)\uff0c\u5373\u4e24\u6839\u7535\u7f06\u53cc\u5e76\u3002\u7535\u7f06\u6c9f\u5185\u5747\u97002X\uff083X400mm^2+150mm^2)\uff0c\u5373\u4e24\u6839\u7535\u7f06\u53cc\u5e76\u3002
5\u3001\u4f7f\u7528YJV0.6/1kV\u4e09\uff08\u94dc\uff09\u82af\uff08\u62163+1\uff09\u4ea4\u8054\u805a\u4e59\u70ef\u7edd\u7f18\u805a\u6c2f\u4e59\u70ef\u62a4\u5957\u7535\u529b\u7535\u7f06\uff0c\u5728\u7a7a\u6c14\u4e2d\u6216\u7535\u7f06\u6c9f\u5185\u5747\u97002X\uff083X240mm^2+1X120mm^2)\uff0c\u5373\u4e24\u6839\u7535\u7f06\u53cc\u5e76\u3002 \u4f7f\u7528YJLV0.6/1kV\u4e09\u94dd\u82af\uff08\u62163+1) \u805a\u6c2f\u4e59\u70ef\u7edd\u7f18\u53ca\u62a4\u5957\u7535\u529b\u7535\u7f06\uff0c\u5728\u7a7a\u6c14\u4e2d\u97002X\uff083X300mm^2+1X120mm^2)\uff0c\u5373\u4e24\u6839\u7535\u7f06\u53cc\u5e76\u3002\u7535\u7f06\u6c9f\u5185\u5747\u97002X\uff083X400mm^2+150mm^2)\uff0c\u5373\u4e24\u6839\u7535\u7f06\u53cc\u5e76\u3002
6\u3001\u4ee5\u4e0a\u7535\u7f06\u82e5\u91c7\u53d6\u5730\u4e0b\u76f4\u57cb\u6577\u8bbe\uff08\u542b\u94e0\u88c5\u7535\u7f06\uff09\uff0c\u5747\u9700\u8981\u518d\u653e\u5927\u4e00\u6863\u3002
3*150+1*70\u7684\u89c4\u683c\u3002
\u5927\u622a\u9762\u94dc\u82af\u7535\u7ebf\u6bcf\u5e73\u65b9\u5b89\u5168\u8f7d\u6d41\u7ea62.5\uff5e3A\uff0c\u9700\u7535\u7ebf\u622a\u9762\uff1aS\uff1d1368/3\uff1d456(\u5e73\u65b9)\uff0c\u7535\u7f06\u89c4\u683c\u53ef\u9009\u7528\uff1a3*150+1*70
\u94dc\u82af\u7535\u7f06\u5b89\u5168\u8f7d\u6d41\u91cf\u6bd4\u94dd\u82af\u7565\u5927\u4e9b\uff0c\u9009\u7528\u53ef\u4ee5\u6bd4\u94dd\u82af\u7535\u7f06\u5c0f\u4e00\u53f7\u7535\u7f06\u9009\u7528\u4e00\u822c\u4e0d\u8003\u8651\u7ebf\u635f\uff0c\u5230\u662f\u8981\u8003\u8651\u5927\u529f\u7387\u7528\u7535\u5668\u7684\u542f\u52a8\u7535\u6d41\u3002
\u5982\u679c130kw\u603b\u529f\u7387\u9ad8\u5cf0\u65f6\u5168\u90e8\u4f7f\u7528\uff0c\u4e14\u6709\u5927\u529f\u7387\u7684\u7528\u7535\u5668\u4e0d\u59a8\u8003\u8651\u5927\u4e00\u53f7\u7684\u7535\u7f06\uff0c\u4e00\u822c\u7535\u673a\u7684\u542f\u52a8\u7535\u6d41\u662f\u6b63\u5e38\u4f7f\u7528\u65f6\u7535\u6d41\u76843\u20145\u500d\u3002
\u62d3\u5c55\u8d44\u6599P\u4e3a\u7535\u8def\u529f\u7387 \uff0cU\u4e3a\u7ebf\u7535\u538b\uff0c\u4e09\u76f8\u662f380V cos\u03c6\u662f\u611f\u6027\u8d1f\u8f7d\u529f\u7387\u56e0\u7d20\uff0c\u4e00\u822c\u7efc\u5408\u53d60.8
\u4f8b\u5982\uff1a
12KW\u8d1f\u8f7d\u7684\u5de5\u4f5c\u7ebf\u7535\u6d41\uff1a I=P/1.732Ucos\u03c6=12000/1.732*380*0.8=12000/526.53=22.8A
185吧
绛旓細棰濆畾鍔熺巼=200kW锛屼笁鐩哥數鍘=380V锛屽姛鐜囧洜鏁=0.9锛屾姌鍚堝伐浣滅數娴=337.7A锛屽彲閫鐢电紗锛150mm² PVC濉戞枡缁濈紭 鍗曡姱閾滅嚎锛屾帹鑽愯浇娴侀噺350A锛岀浉搴斿姛鐜207.4kW锛岀數缂嗘弧璐熻嵎鏃5%鐢靛帇鎹熷け璺濈涓443m锛95mm² PE濉戞枡缁濈紭 鍗曡姱閾滅嚎锛屾帹鑽愯浇娴侀噺350A锛岀浉搴斿姛鐜207.4kW锛岀數缂嗘弧璐熻嵎鏃5%鐢靛帇鎹熷け璺濈涓280...
绛旓細18鍗冪摝380v鍙互鐢6鏍6骞虫柟涓夎姱鐢电紗绾(鍥芥爣绾)锛屾垨鑰呮槸2.5骞虫柟鐨4鑺垨5鑺數缂寸嚎锛岃繖涓ょ澶у皬鐨勭鐢电紗閮藉彲浠ャ傜數娴佷负18000/380/3=15.8A锛15.8/9=1.75骞虫柟姣背锛屽洜姝ょ敤2.5骞虫柟鐨4鑺垨5鑺數缂嗙嚎灏辫冻澶熶簡銆傜數娴佺殑澶у皬璺熺數绾跨殑绮楃粏鏈夌洿鎺ョ殑鍏崇郴锛岀數娴佸皬閭ｄ箞鎵鐢鐨勭數绾灏卞簲褰撶粏浜涳紝鐢垫祦澶ч偅涔堢數绾...
绛旓細涓夌浉 380V 210kw 鐢靛姩鏈 鐢垫祦420A 鐢240骞虫柟閾滅嚎
绛旓細鍏蜂綋瑕佺湅绾挎潗鐨勯夋嫨浜嗭紵鏈璧风爜瑕佷娇鐢150骞虫柟鐨勯摐鑺鐢电紗绾銆傚彲浠ュ弬鐓т笅鍥捐〃杩涜閫夋嫨锛
绛旓細涓夌浉鐢电紗鍔熺巼瀵圭収琛 1. 鏍规嵁涓夌浉鐢电紗鐨勭浉绾跨數娴佽绠楀叕寮忥細I = P 梅 (U 脳 1.732 脳 cos桅)鍏朵腑 P - 鍔熺巼 (W)锛沀 - 鐢靛帇 (380V)锛沜os桅 - 鍔熺巼鍥犵礌 (0.85)锛汭 - 鐩哥嚎鐢垫祦 (A)2. 鍦ㄤ笁鐩稿钩琛＄數璺腑锛屼竴鑸摐瀵肩嚎鐨勫厑璁歌浇娴侀噺涓 5~8A/mm²銆備緥濡傦紝瀵逛簬鐢垫満鍔熺巼 P = 7.5kW锛...
绛旓細鎬诲姛鐜2000KW锛岀數鍘380V锛岀數娴佸ぇ绾︽槸锛2000梅380=5.3 kA 鑰冭檻璁惧鍚姩鐢垫祦 寤鸿妤间富閫夋嫨2500骞虫柟鍘樼背鐨勯摐鑺鐢电紗銆
绛旓細25鍗冪摝380浼忕殑鐢靛櫒闇瑕佷娇鐢澶氬ぇ瑙勬牸鐨鐢电紗锛熶竴鑸潵璇达紝鐢垫祦绾︿负50瀹夊煿锛屼负浜嗗畨鍏ㄨ捣瑙侊紝寤鸿浣跨敤鑷冲皯16骞虫柟绫崇殑鐢电紗銆傜數缂嗙殑瑙勬牸閫氬父浠ュ钩鏂规绫筹紙mm²锛夋潵琛ㄧず锛屼緥濡2.5骞虫柟姣背銆4骞虫柟姣背銆6骞虫柟姣背绛夈傚鐢ㄧ數鍣ㄥ鏅氭彃搴ч氬父鍙互浣跨敤2.5骞虫柟姣背鐨勭數缂嗭紝绌鸿皟绛夊ぇ鍔熺巼鐢靛櫒鍒欏彲鑳介渶瑕4骞虫柟姣背鐨勫崟...
绛旓細210涓崈鐡﹀畠鐨勭數娴佷负375A锛岃鐢185鐨勯摑鐢电紗銆傛牴鎹姛鐜嘝=1.732UIcos蠁鏈塈=P/(1.732Ucos蠁)=210/(1.732x0.38x0.85)=375A(鍔熺巼鍥犳暟鍙0.85)銆傛牴鎹彛璇锛岀數缂嗘埅闈及璁¤鍦100骞虫柟浠ヤ笂锛屽洜姝ゆ瘡骞虫柟鐨勫畨鍏ㄧ數娴佷负2A锛屾墍浠ョ數缂嗙殑骞虫柟鏁=375/2=187骞虫柟銆傛牴鎹數缂嗚鏍艰〃锛屽彲閫185鐨勯摑鐢电紗鎴150鐨...
绛旓細80kw380v鐢澶氬ぇ鐨鐢电紗鏄笉纭畾鐨勶紝瑕佹牴鎹數璺殑鍏蜂綋鎯呭喌鏉ュ垎鏋愩備竴鑸潵璇达紝80kw380v鐢35骞虫柟姣背鐨勯摐绾裤80鍗冪摝璐熻浇锛岄瀹氬伐浣滅數娴佸氨鏄160瀹夊煿锛岃岄摐鑺數缂嗚浇娴侀噺鏄瘡骞虫柟姣背7瀹夊煿宸﹀彸锛屾墍浠ュぇ姒傜數缂嗘埅闈㈢Н鏄24骞虫柟鏂规绫炽傚啀鑰冭檻璐熻浇鍚姩鐢垫祦鍜岃繃杞界郴鏁帮紝寤鸿閫夌敤35骞虫柟姣背閾滆姱鐢电紗銆傜數缂嗛夋嫨鐨勭畝鍗曠畻娉...
绛旓細380V涓夌浉渚涚數锛屽姛鐜21kW锛屽姛鐜囧洜鏁0.8锛岃礋杞界數娴39.9A锛屽彲閫鐢电紗锛6mm²鑱氭隘涔欑儻1鑺摐绾跨紗锛屾帹鑽愯浇娴侀噺48A锛30m澶21kW绔數鍘 375.6V锛130m澶勬崯澶辩數鍘19V锛4mm²浜よ仈鑱氫箼鐑1鑺摐绾跨紗锛屾帹鑽愯浇娴侀噺50A锛30m澶21kW绔數鍘 373.2V锛83m澶勬崯澶辩數鍘19V锛10mm²鑱氭隘涔欑儻3鑺摐绾跨紗...
