负荷约250kW,线路长500米,需用YJV的多大规格电缆,其压降是多少. 200kw500米用多大电缆
\u5173\u4e8e\u7535\u7f06\u538b\u964d\u8ba1\u7b97\u7684\u6c42\u52a9\u6ee1\u8d1f\u8377250kW\uff0c\u7535\u6d41\u5927\u7ea6500A\uff0cYJV 3*240+1*120\u7535\u7f06\uff0c\u5728\u7a7a\u6c14\u4e2d\u6577\u8bbe\uff0c\u8f7d\u6d41\u91cf\u662f416A\uff0c\u5728\u5730\u4e0b\u76f4\u57cb\u6577\u8bbe399A\uff0c\u663e\u7136\u7535\u7f06\u7684\u89c4\u683c\u662f\u5c0f\u4e86\u3002
\u5982\u679c\u8be5\u7535\u7f06\u5728\u7a7a\u6c14\u4e2d\u6577\u8bbe\uff0c\u65ad\u8def\u5668400A\uff0c\u90a3\u4e48\u8f93\u7535\u6700\u5927\u8d1f\u8377\u5728200kW\u5de6\u53f3\uff08\u6ca1\u8003\u8651\u7535\u538b\u964d\uff09\u3002
\u4f60\u6ca1\u6709\u63d0\u4f9b250KW\u8d1f\u8377\u7684\u8d1f\u8f7d\u6027\u8d28\u3002\u5982\u679c\u6309\u7167\u7535\u7f06400A\u7684\u8f7d\u6d41\u91cf\uff08\u8d1f\u8f7d200kW\uff09\u6765\u8003\u8651\uff0c\u90a3\u4e48\u7ebf\u8def\u7535\u538b\u635f\u5931\uff1a
\u4e09\u76f8\u4ea4\u6d41\u7ebf\u8def\u7684\u7535\u538b\u964d\uff1a\u25b3U=\u221a3\u00d7I\uff08\u7535\u7f06\u7684\u7535\u6d41\uff09\u00d7L\uff08\u7535\u7f06\u7684\u957f\u5ea6\uff09\u00d7{ R\uff08\u7535\u7f06\u5bfc\u4f53\u7684\u6709\u6548\u7535\u963b\uff09\u00d7cos\u03c6+X\uff08\u7535\u7f06\u5bfc\u4f53\u7684\u4ea4\u6d41\u7535\u6297\uff09\u00d7sin\u03c6} \uff0c\u5176\u4e2d\u03c6\u4e3a\u7535\u7f06\u672b\u7aef\u7535\u538b\u4e0e\u7535\u6d41\u4e4b\u95f4\u7684\u76f8\u4f4d\u89d2\u3002
\u7535\u538b\u964d\uff1a\u25b3U=\u221a3\u00d7400\u00d70.615\u00d70.0982\uff0890\u00b0C\uff09\u224842V\uff0c(-42/380)\u00d7100%=-11%\uff0c\u6839\u636e\u56fd\u5bb6\u6807\u51c6GB/12325-2008\u7684\u89c4\u5b9a
5.0.4 \u6b63\u5e38\u8fd0\u884c\u60c5\u51b5\u4e0b\uff0c\u7528\u7535\u8bbe\u5907\u7aef\u5b50\u5904\u7535\u538b\u504f\u5dee\u5141\u8bb8\u503c\u5b9c\u7b26\u5408\u4e0b\u5217\u8981\u6c42:
1\u3001 \u7535\u52a8\u673a\u4e3a\u58eb5% \u989d\u5b9a\u7535\u538b\u3002
2\u3001 \u7167\u660e\uff1a\u5728\u4e00\u822c\u5de5\u4f5c\u573a\u6240\u4e3a\u58eb5% \u989d\u5b9a\u7535\u538b;\u5bf9\u4e8e\u8fdc\u79bb\u53d8\u7535\u6240\u7684\u5c0f\u9762\u79ef\u4e00\u822c\u5de5\u4f5c\u573a\u6240\uff0c\u96be\u4ee5\u6ee1\u8db3\u4e0a\u8ff0\u8981\u6c42\u65f6\uff0c\u53ef\u4e3a\u53415% \uff0c -10%\u989d\u5b9a\u7535\u538b;\u5e94\u6025\u7167\u660e\u3001\u9053\u8def\u7167\u660e\u548c\u8b66\u536b\u7167\u660e\u7b49\u4e3a+5% \uff0c -10% \u989d\u5b9a\u7535\u538b\u3002
3 \u3001\u5176\u4ed6\u7528\u7535\u8bbe\u5907\u5f53\u65e0\u7279\u6b8a\u89c4\u5b9a\u65f6\u4e3a\u58eb5% \u989d\u5b9a\u7535\u538b\u3002
\u4f60\u4e00\u770b\u5c31\u53ef\u4ee5\u77e5\u9053\u80fd\u5426\u6b63\u5e38\u4f7f\u7528\u3002
200kW\uff0c\u7535\u6d41\u7ea6400A\uff0c500\u7c73\u8ddd\u79bb\u6bd4\u8f83\u8fdc\uff0c\u7ebf\u8def\u635f\u5931\u538b\u964d\u5fc5\u987b\u8003\u8651\uff0c\u5efa\u8bae\u9009\u7528\uff1a
YJV-0.6/1 1X400 \u5355\u82af\u94dc\u82af\u4ea4\u8054\u805a\u4e59\u70ef\u7edd\u7f18\u805a\u6c2f\u4e59\u70ef\u62a4\u5957\u7535\u529b\u7535\u7f06\uff0c\u6216\u8005
YJLV-0.6/1 1X500 \u5355\u82af\u94dd\u82af\u4ea4\u8054\u805a\u4e59\u70ef\u7edd\u7f18\u805a\u6c2f\u4e59\u70ef\u62a4\u5957\u7535\u529b\u7535\u7f06\uff0c\u4f5c\u4e3a\u4e09\u76f8\u4e09\u6839\u76f8\u7ebf\u7535\u7f06\u3002
YJV-0.6/1 1X185 \u5355\u82af\u94dc\u82af\u4ea4\u8054\u805a\u4e59\u70ef\u7edd\u7f18\u805a\u6c2f\u4e59\u70ef\u62a4\u5957\u7535\u529b\u7535\u7f06\uff0c\u6216\u8005
YJLV-0.6/1 1X240 \u5355\u82af\u94dd\u82af\u4ea4\u8054\u805a\u4e59\u70ef\u7edd\u7f18\u805a\u6c2f\u4e59\u70ef\u62a4\u5957\u7535\u529b\u7535\u7f06\uff0c\u4f5c\u4e3a\u4e00\u6839\u96f6\u7ebf\u7535\u7f06
\u5982\u679c\u8d70\u5730\u4e0b\u571f\u58e4\u76f4\u57cb\u6577\u8bbe\uff1a\u5efa\u8bae\u9009\u7528\uff1a
YJV22-0.6/1 1X400 \u5355\u82af\u94dc\u82af\u4ea4\u8054\u805a\u4e59\u70ef\u7edd\u7f18\u94a2\u5e26\u94e0\u88c5\u805a\u6c2f\u4e59\u70ef\u62a4\u5957\u7535\u529b\u7535\u7f06\uff0c\u6216\u8005
YJLV22-0.6/1 1X500 \u5355\u82af\u94dd\u82af\u4ea4\u8054\u805a\u4e59\u70ef\u7edd\u7f18\u94a2\u5e26\u94e0\u88c5\u805a\u6c2f\u4e59\u70ef\u62a4\u5957\u7535\u529b\u7535\u7f06\uff0c\u4f5c\u4e3a\u4e09\u76f8\u4e09\u6839\u76f8\u7ebf\u7535\u7f06\u3002
YJV22-0.6/1 1X185 \u5355\u82af\u94dc\u82af\u4ea4\u8054\u805a\u4e59\u70ef\u7edd\u7f18\u805a\u94a2\u5e26\u94e0\u88c5\u6c2f\u4e59\u70ef\u62a4\u5957\u7535\u529b\u7535\u7f06\uff0c\u6216\u8005
YJLV22-0.6/1 1X240 \u5355\u82af\u94dd\u82af\u4ea4\u8054\u805a\u4e59\u70ef\u7edd\u7f18\u94a2\u5e26\u94e0\u88c5\u805a\u6c2f\u4e59\u70ef\u62a4\u5957\u7535\u529b\u7535\u7f06\uff0c\u4f5c\u4e3a\u4e00\u6839\u96f6\u7ebf\u7535\u7f06
\u4e5f\u53ef\u4ee5\u5bf9\u5e94\u9009\u7528\u805a\u6c2f\u4e59\u70ef\u7edd\u7f18\u7535\u7f06VV\u3001VLV\u3001VV22\u3001VLV22\u578b\u3002
按照这个电流和长500M来计算
电压降为0.152V
双拼的话用120mm2的应该够了电压降为0.23V，95mm2的话比较悬。
设计电缆型号合理，实际安装时应注意将负荷进行拆分，电缆不能并联使用。 每米电压降与电缆截面有关。如1.5平电缆的电压降为18.9mv/M；150平为0.3mv/M；300平为0.19mv/M。
nh-yjv-(3*25+2*16)
纯国标的电缆能带42个电流。
你的电压我不知道，所以请自己计算了
nhyjv
0.6/1kv的
都没问题
绛旓細濡傛灉鍔熺巼鍥犳暟鎸夌収0.8鏉ヨ绠楃數鍘嬫寜鐓т笁鐩哥嚎鐢靛帇380V锛岄偅涔堢數娴佷负473.5A 鎸夌収杩欎釜鐢垫祦鍜岄暱500M鏉ヨ绠 鐢靛帇闄嶄负0.152V 鍙屾嫾鐨勮瘽鐢120mm2鐨勫簲璇ュ浜嗙數鍘嬮檷涓0.23V锛95mm2鐨勮瘽姣旇緝鎮
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绛旓細195mm2鐢电紗
绛旓細250鍗冪摝闇瑕3x300骞虫柟鐨勯摐鐢电紗銆備竴鑸緝澶х殑鍔ㄥ姏鐢ㄧ數寰堝繉璁充袱鏍圭數缂嗗苟鍒楄繍琛岀殑鎯呭喌锛屽挨鍏舵槸涓嶅悓绾垮緞銆佷笉鍚岄暱搴︾殑鐢电紗銆250KW婊璐熻嵎杩愯鏃剁數娴佽嚦灏戝湪500A宸﹀彸锛70鐢电紗鍦ㄦ槑鏁凤紙绌跨銆佽蛋绾挎Ы绛夎浇娴侀噺瑕佸亸灏忥級鏃堕暱鏈熻繍琛岀殑鍏佽杞芥祦閲忔墠234A銆傝繕鏈変负浜嗚澶囧畨鍏ㄥ彲闈狅紝浣犲彲浠ュ啀閫変竴鏍瑰悓瑙勬牸鍚岄暱搴︾殑鐢电紗骞跺垪杩愯...
绛旓細婊璐熻嵎250kW锛鐢垫祦澶х害500A锛孻JV 3*240+1*120鐢电紗锛屽湪绌烘皵涓暦璁撅紝杞芥祦閲忔槸416A锛屽湪鍦颁笅鐩村煁鏁疯399A锛屾樉鐒剁數缂嗙殑瑙勬牸鏄皬浜嗐傚鏋滆鐢电紗鍦ㄧ┖姘斾腑鏁疯锛屾柇璺櫒400A锛岄偅涔堣緭鐢垫渶澶ц礋鑽峰湪200kW宸﹀彸锛堟病鑰冭檻鐢靛帇闄嶏級銆備綘娌℃湁鎻愪緵250KW璐熻嵎鐨勮礋杞芥ц川銆傚鏋滄寜鐓х數缂400A鐨勮浇娴侀噺锛堣礋杞200kW锛夋潵鑰冭檻锛...
绛旓細350m鍙屽苟鏃=0.11494*0.35/2=0.02娆у 濡傞瀹氱數娴480A锛屽惎鍔ㄧ數娴佹寜6.5鍊嶇畻锛480*6.5=3120A锛屽惎鍔ㄦ椂鍦ㄨ繖娈电數缂嗕笂鐨勫帇闄=3120*0.02=62.4V锛岀害涓62V銆 62V/380V=0.164锛屽嵆16.4%锛岃礋杞戒晶鏈帴鐓ф槑绛夊鐢靛帇娉㈠姩鏁忔劅鐨璐熻嵎锛鍕夊己杩樺彲浠ュ惂锛堝浗鏍囷細涓嶅疁浣庝簬棰濆畾鐢靛帇鐨85%锛夈
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