\u2605 \u4e00\u3001\u7167\u660e\u7535\u8def\u7535\u6d41\u8ba1\u7b97\u53ca\u7194\u4e1d\u5200\u95f8\u7684\u9009\u62e9<\/p>\n\n\n\n
\u2605 \u53e3\u8bc0\uff1a\u767d\u70bd\u706f\u7b97\u7535\u6d41\uff0c\u53ef\u7528\u529f\u7387\u9664\u538b\u6c42\uff1b
\u65e5\u5149\u706f\u7b97\u7535\u6d41\uff0c\u529f\u7387\u9664\u538b\u53ca\u529f\u7387\u56e0\u6570\u6c42\uff08\u8282\u80fd\u65e5\u5149\u706f\u9664\u5916\uff09\uff1b
\u5200\u95f8\u4fdd\u9669\u4e5f\u597d\u6c42\uff0c\u70b9\u4e94\u500d\u989d\u5b9a\u6d41\uff1b <\/p>\n\n\n\n
\u8bf4\u660e\uff1a\u7167\u660e\u7535\u8def\u4e2d\u7684\u767d\u70bd\u706f\u4e3a\u7535\u963b\u6027\u8d1f\u8377\uff0c\u529f\u7387\u56e0\u6570cos\u03a6=1\uff0c\u7528\u529f\u7387P\u5355\u4f4d\u74e6\u9664\u4ee5\u7535\u538b\u7b49\u4e8e\u5176\u989d\u5b9a\u7535\u6d41\u3002\u65e5\u5149\u706f\u4e3a\u7535\u611f\u6027\u8d1f\u8377\uff0c\u5176\u529f\u7387\u56e0\u6570cos\u03a6\u4e3a0.4-0.6\uff08\u822c\u53d60.5\uff09\uff0c\u5373P\/U\/cos\u03a6=I\u3002 <\/p>\n\n\n\n
\u4f8b1\uff1a\u6709\u7167\u660e\u7ebf\u8def\uff0c\u989d\u5b9a\u7535\u538b\u4e3a220V\uff0c\u767d\u70bd\u706f\u603b\u529f\u7387\u4e3a2200W\uff0c\u6c42\u603b\u7535\u6d41\u9009\u5200\u95f8\u7194\u4e1d\u3002
\u89e3\uff1a\u5df2\u77e5 U=220V,\u603b\u529f\u7387=2200W \u603b\u7535\u6d41I=P\/U=2200\/220=10A
\u9009\u5200\u95f8\uff1aQS=I\u00d7(1.1~1.5)=15A
\u9009\u7194\u4e1d\uff1aIR=I\u00d7(1.1~1.5)=10\u00d71.1=11A (\u53d6\u7cfb\u65701.1)
QS——–\u5200\u95f8
IR———\u7194\u4e1d
\u7b54\uff1a\u7535\u8def\u7684\u7535\u6d41\u4e3a10\u5b89\u57f9\uff0c\u5200\u95f8\u9009\u752815\u5b89\u57f9\uff0c\u7194\u4e1d\u9009\u752811\u5b89\u57f9\u3002 <\/p>\n\n\n\n
\u4f8b2\uff1a\u6709\u7167\u660e\u7535\u8def\uff0c\u989d\u5b9a\u7535\u538b\u4e3a220V\uff0c\u63a5\u6709\u65e5\u5149\u706f440W\uff0c\u6c42\u603b\u7535\u6d41\u9009\u5200\u95f8\u7194\u4e1d\u3002\uff08cos\u03a6=0.5\uff09
\u89e3\uff1a\u5df2\u77e5U=220V, cos\u03a6=0.5\uff0c\u603b\u529f\u7387=440W \u603b\u7535\u6d41I=P\/U\/ cos\u03a6=440\/220\/0.5=4A
\u9009\u5200\u95f8\uff1aQS=I\u00d7(1.1~1.5)=4\u00d71.5=6A
\u9009\u7194\u4e1d\uff1aIR=I\u00d7(1.1~1.5)= 4\u00d71.5=6A
\u7b54\uff1a
\u7535\u8def\u7684\u603b\u7535\u6d41\u4e3a4A,\u5200\u95f8\u9009\u75286A,\u7194\u4e1d\u9009\u75286A\u3002 <\/p>\n\n\n\n
\u2605 \u4e8c \u3001380V\/220V\u5e38\u7528\u8d1f\u8377\u8ba1\u7b97 <\/p>\n\n\n\n
\u2605 \u53e3\u8bc0\uff1a\u4e09\u76f8\u5343\u74e6\u4e24\u500d\u5b89\uff0c\u70ed\uff0c\u4f0f\u5b89\uff0c\u5343\u4e4f\u4e3a\u70b9\u4e94
\u5355\u76f8\u4e8c\u4e8c\u4e58\u56db\u4e94\uff0c\u82e5\u662f\u4e09\u516b\u4e24\u500d\u534a\u3002 <\/p>\n\n\n\n
\u8bf4\u660e\uff1a\u4e09\u76f8\u5343\u74e6\u4e24\u500d\u5b89\u662f\u6307\u4e09\u76f8\u7535\u52a8\u673a\u5bb9\u91cf1\u5343\u74e6\uff0c\u7535\u6d412\u5b89\u57f9\uff0c\u70ed\uff0c\u4f0f\u5b89\uff0c\u5343\u4e4f\u70b9\u4e94\u662f\u6307\u4e09\u76f8\u7535\u70ed\u5668\uff0c\u53d8\u538b\u5668\uff0c\u7535\u5bb9\u5668\u5bb9\u91cf1\u5343\u74e6\uff0c1\u5343\u4f0f\u5b89\uff0c1\u5343\u4e4f\u7535\u5bb9\u7535\u6d41\u4e3a1.5\u5b89\u57f9\uff0c\u5355\u76f8\u4e8c\u4e8c\u4e58\u56db\u4e94\uff0c\u82e5\u662f\u4e09\u516b\u4e24\u500d\u534a\u662f\u6307\u5355\u76f8220V\u5bb9\u91cf1\u5343\u74e6\uff0c\u7535\u6d41\u4e3a4.5\u5b89\uff0c380V\u5355\u76f8\u7535\u710a\u673a1\u5343\u4f0f\u5b89\u4e3a2.5\u5b89\u57f9\u3002<\/p>\n\n\n\n
\u4f8b1\uff1a\u6709\u53f0\u4e09\u76f8\u5f02\u6b65\u7535\u52a8\u673a\uff0c\u989d\u5b9a\u7535\u538b\u4e3a380V\uff0c\u5bb9\u91cf\u4e3a14\u5343\u74e6\uff0c\u529f\u7387\u56e0\u6570\u4e3a0.85\uff0c\u7387\u4e3a0.95\uff0c\u8ba1\u7b97\u7535\u6d41\uff1f
\u89e3\uff1a\u5df2\u77e5 U=380V cos\u03a6=0.85 n=0.95 P=14\u5343\u74e6 \u7535\u6d41I=P\/(\u00d7U\u00d7cos\u03a6\u00d7n)=P\/(1.73\u00d7380\u00d70.85\u00d70.95)=28(\u5b89)
\u7b54\uff1a\u7535\u6d41\u4e3a28\u5b89\u57f9\u3002 <\/p>\n\n\n\n
\u4f8b2\uff1a\u6709\u53f0\u4e09\u76f8380\u4f0f\u3001\u5bb9\u91cf\u4e3a10\u5343\u74e6\u52a0\u70ed\u5668\uff0c\u6c42\u7535\u6d41\uff1f
\u89e3\uff1a\u5df2\u77e5 U=380V P=10\u5343\u74e6 \u7535\u6d41I=P\/(\u00d7U)=10\/(1.73\u00d70.38)=15.21\uff08\u5b89\uff09
\u7b54\uff1a\u7535\u6d41\u4e3a15\u5b89\u3002 <\/p>\n\n\n\n
\u4f8b3\uff1a\u6709\u53f0380\u4f0f\u7684\u4e09\u76f8\u53d8\u538b\u5668\uff0c\u5bb9\u91cf20\u5343\u4f0f\u5b89\uff0c\u6c42\u7535\u6d41\uff1f
\u89e3\uff1a\u5df2\u77e5 U=380V S=20KWA \u7535\u6d41 I=S\/(\u00d7U)=20\/(1.73\u00d70.38)=30.45(\u5b89)
\u7b54\uff1a\u7535\u6d41\u4e3a30\u5b89\u57f9\u3002 <\/p>\n\n\n\n
\u4f8b4\uff1a\u6709\u53f0BW0.4-12-3\u7535\u5bb9\u5668\uff0c\u6c42\u7535\u6d41\uff1f
\u89e3\uff1a\u5df2\u77e5 U=0.4\u5343\u4f0f Q=12 KVAR \u7535\u6d41I=Q\/(\u00d7U)=12\/(1.73\u00d70.4)=17.3(\u5b89)
\u7b54\uff1a\u7535\u6d41\u4e3a17.3\u5b89\u57f9\u3002 <\/p>\n\n\n\n
\u4f8b5\uff1a\u6709\u53f0\u5355\u76f8220V\uff0c\u5bb9\u91cf1\u5343\u74e6\u7535\u70d9\u94c1\uff0c\u6c42\u7535\u6d41\uff1f
\u89e3\uff1a\u5df2\u77e5 U=220V P=1000\u74e6 \u7535\u6d41I=P\/U=1000\/220=4.5(\u5b89)
\u7b54\uff1a\u7535\u6d41\u4e3a4.5\u5b89\u57f9\u3002 <\/p>\n\n\n\n
\u4f8b6\uff1a\u6709\u53f0\u5355\u76f8\u7535\u710a\u673a\uff0c\u989d\u5b9a\u7535\u538b\u4e3a380V\uff0c\u5bb9\u91cf\u4e3a28\u5343\u4f0f\u5b89\uff0c\u6c42\u7535\u6d41\uff1f
\u89e3\uff1a\u5df2\u77e5 U=380V S=28\u5343\u4f0f\u5b89 \u7535\u6d41I=S\/U=28\/0.38=73.6(\u5b89)
\u7b54\uff1a\u7535\u6d41\u4e3a73.6\u5b89\u57f9\u3002 <\/p>\n\n\n\n
\u8bf4\u660e\uff1a\u4ee5\u4e0a\u8ba1\u7b97\u5355\u76f8\u8bbe\u5907\u7535\u538b\u4e3a220V\uff0c\u529f\u7387\u56e0\u6570cos\u03a6=1\uff0c\u7535\u6d41\u4e3a\u5bb9\u91cf\u76844.5\u500d\uff0c\u5355\u76f8\u8bbe\u5907\u7535\u538b\u4e3a380V,\u5982\u7535\u710a\u673a\u548c\u884c\u706f\u53d8\u538b\u5668\u4e4b\u7c7b\u8d1f\u8f7d\uff0c\u5176\u7535\u6d41\u4e3a\u5bb9\u91cf\u76842,5\u500d\u3002 <\/p>\n\n\n\n
\u2605 \u4e09\u3001\u914d\u7535\u7535\u529b\u53d8\u538b\u5668\u7684\u9009\u62e9 <\/p>\n\n\n\n
\u2605 \u53e3\u8bc0\uff1a\u7535\u529b\u53d8\u538b\u5668\u9009\u5bb9\u91cf\uff0c \u603b\u7528\u7535\u8bbe\u5907\u4e58\u540c\u65f6\u7387\u3002 \u518d\u9664\u529f\u7387\u56e0\u6570\u548c\u7387\u3002 <\/p>\n\n\n\n
\u8bf4\u660e\uff1a\u603b\u7528\u7535\u8bbe\u5907\u662f\u6307\u5de5\u5382\u6240\u6709\u8bbe\u5907\u529f\u7387\u4e4b\u548c\uff0c\u540c\u65f6\u7387\u662f\u6307\u540c\u65f6\u95f4\u6295\u5165\u8fd0\u884c\u7684\u8bbe\u5907\u5b9e\u9645\u5bb9\u91cf\u4e0e\u7528\u7535\u8bbe\u5907\u5bb9\u91cf\u7684\u6bd4\u503c\uff0c\u4e00\u822c\u9009\u7ea6\u4e3a0.7 \u529f\u7387\u56e0\u6570\uff1a\u4e00\u822c\u90090.8-0.9 \u7387\uff1a\u4e00\u822c\u4e3a0.85-0.9 \u7535\u529b\u53d8\u538b\u5668\u5bb9\u91cf=\u7528\u7535\u8bbe\u5907\u603b\u5bb9\u91cf\u00d7\u540c\u65f6\u7387\/\u7528\u7535\u8bbe\u5907\u7684\u529f\u7387\u56e0\u6570\u00d7\u7528\u7535\u8bbe\u5907\u7387 <\/p>\n\n\n\n
\u4f8b\uff1a\u6709\u5de5\u5382\u7528\u7535\u8bbe\u5907\u603b\u5bb9\u91cf700\u5343VA\uff0c\u5b9e\u9645\u7528\u91cf\u4e3a600\u5343VA\uff0c\u6c42\u7528\u7535\u53d8\u538b\u5668\u7684\u5bb9\u91cf\u3002
\u540c\u65f6\u7387600\u5343VA\u00f7700\u5343VA=0.86 \u7535\u529b\u53d8\u538b\u5668\u5bb9\u91cf=\uff08700\u00d70.86\uff09\/\uff08cos\u03a6=0.85\u00d70.85\uff09 =600\/0.722=830\u5343VA \u6ce8\uff1a\u5982\u529f\u7387\u56e0\u6570\u4e3a0.95\uff0c\u7387\u4e3a0.9\uff0c\u5176\u5bb9\u91cf\u4e3a\uff1a \u7535\u529b\u53d8\u538b\u5668\u5bb9\u91cf=\uff08700\u00d70.7\uff09\/\uff08cos\u03a6=0.95\u00d7n=0.9\uff09 =490\/0.855=576\u5343VA <\/p>\n\n\n\n
\u5982\uff1a\u529f\u7387\u56e0\u6570=0.7 \uff0cn=0.9 \u540c\u65f6\u7387\u4e3a0.75\uff0c\u6c42\u5bb9\u91cf\u3002
\u7535\u529b\u53d8\u538b\u5668\u5bb9\u91cf=\uff08700\u5343VA\u00d70.75\uff09\uff0f\uff080.7\u00d70.9\uff09 =525\uff0f0.63=833\u5343VA \u7efc\u5408\u4e0a\u8ff0\u5206\u6790\u529f\u7387\u56e0\u6570\u8d8a\u4f4e\u7535\u529b\u53d8\u538b\u5668\u9009\u7528\u8d8a\u5927\uff0c\u53cd\u4e4b\u8d8a\u5c0f\uff0c\u603b\u7ed3\u5fc5\u987b\u63d0\u9ad8\u529f\u7387\u56e0\u6570\u624d\u80fd\u8fbe\u5230\u8282\u80fd\u964d\u8017\u76ee\u7684\u3002 <\/p>\n\n\n\n
\u2605 \u56db\u3001\u529f\u7387\u56e0\u6570\u7684\u8ba1\u7b97 <\/p>\n\n\n\n
\u2605 \u53e3\u8bc0\uff1a\u529f\u7387\u56e0\u6570\u600e\u4e48\u6c42\uff0c \u53ef\u770b\u6709\u529f\u548c\u65e0\u529f\u7535\u8868\u6c42\uff0c \u8ba1\u7b97\u5f53\u6708\u7528\u7535\u91cf\uff0c \u5373\u53ef\u7b97\u51fa\u529f\u7387\u56e0\u6570\u3002 <\/p>\n\n\n\n
\u8bf4\u660e\uff1a\u6709\u7684\u4f01\u4e1a\u5ffd\u89c6\u4e86\u529f\u7387\u56e0\u6570\u7684\u9ad8\u4f4e\uff0c\u529f\u7387\u56e0\u6570\u4f4e\u53ef\u5bfc\u81f4\u4f01\u4e1a\u7528\u7535\u7684\u6210\u672c\u589e\u52a0\uff0c\u4e3a\u4e86\u51cf\u5c11\u7528\u7535\u6210\u672c\uff0c\u529f\u7387\u56e0\u6570\u5fc5\u987b\u8fbe\u52300.9\uff0c\u5173\u4e8e\u529f\u7387\u56e0\u6570\u7684\u5982\u4f55\u63d0\u9ad8\uff0c\u5c06\u5728\u4e0b\u8282\u5982\u4f55\u8ba1\u7b97\u8865\u507f\u529f\u7387\u56e0\u6570\u7684\u63d0\u9ad8\u8bba\u8ff0\u3002 <\/p>\n\n\n\n
\u53e3\u8bc0\u4e2d\uff1a\u529f\u7387\u56e0\u6570\u600e\u6837\u6c42\uff0c\u53ef\u770b\u6709\u529f\u548c\u65e0\u529f\u7535\u8868\u6c42\uff0c\u8ba1\u7b97\u5f53\u6708\u7528\u7535\u91cf\u5373\u53ef\u6c42\u51fa\u529f\u7387\u56e0\u6570\u6765\uff0c\u6709\u7684\u4f01\u4e1a\u5de5\u5382\u914d\u7535\u7cfb\u7edf\u672a\u88c5\u529f\u7387\u56e0\u6570\u8868\uff0c\u529f\u7387\u8868\uff0c\u6ca1\u6709\u65e0\u529f\u8865\u507f\u8bbe\u5907\uff0c\u53ea\u662f\u914d\u88c5\u4e86\u7535\u538b\u8868\u3001\u7535\u6d41\u8868\u3001\u6709\u529f\u7535\u5ea6\u8868\u3001\u65e0\u529f\u7535\u5ea6\u8868\uff0c\u6240\u4ee5\u8ba1\u7b97\u529f\u7387\u56e0\u6570\u8f83\u4e3a\u56f0\u96be\uff0c\u53ef\u901a\u8fc7\u6709\u529f\u7535\u5ea6\u8868\u5f53\u6708\u7684\u7528\u7535\u91cf\u5343\u74e6\/\u65f6\u548c\u65e0\u529f\u7535\u5ea6\u8868Kvar\/\u65f6\uff0c\u8ba1\u7b97\u5f53\u6708\u7684\u529f\u7387\u56e0\u6570\u3002 <\/p>\n\n\n\n
\u4f8b\uff1a\u5f53\u6708\u6709\u529f\u7535\u5ea6\u75281000\u5343\u74e6\/\u65f6\uff0c\u65e0\u529f\u7535\u8868\u7528300Kvar\/\u65f6\uff0c\u6c42\u5f53\u6708\u7684\u529f\u7387\u56e0\u6570cos\u03a6\u3002
\u89e3\uff1acos\u03a6=\u6709\u529f\/=1000\/ =1000\/1044=0.957 \u82e5\u6709\u529f\u7535\u5ea6\u75281000\u5343\u74e6\/\u65f6\uff0c\u65e0\u529f\u7535\u8868\u7528750Kvar\/\u65f6\uff0c\u6c42\u5f53\u6708\u7684\u529f\u7387\u56e0\u6570cos\u03a6\u3002 cos\u03a6=\u6709\u529f\/=1000\/ =1\/1.22=0.81 <\/p>\n\n\n\n
\u6ce8\uff1a\u4f01\u4e1a\u65e0\u529f\u8865\u507f\u7684\u529f\u7387\u56e0\u6570\u822c\u57280.7-0.85\uff0c\u6709\u7684\u57280.65\u4ee5\u4e0b\uff0c\u7535\u52a8\u673a\u529f\u7387\u8d8a\u5c0f\uff0c\u529f\u7387\u56e0\u6570\u964d\u4f4e\uff0c\u5927\u9a6c\u62c9\u5c0f\u8f66\uff0c\u529f\u7387\u56e0\u6570\u4f4e\uff0c\u822c\u611f\u5e94\u7535\u673a\u6240\u5360cos\u03a670%\uff0c\u7535\u529b\u53d8\u538b\u5668\u536020%\uff0c\u5bfc\u7ebf\u536010%\u3002 \u5982\u914d\u7535\u5c4f\u4e0a\u6709\u529f\u7387\u56e0\u6570\u8868\u53ef\u4ee5\u76f4\u63a5\u770b\u51fa\uff0c\u6216\u7531\u914d\u7535\u5c4f\u4e0a\u5f97\u7535\u538b\u8868\uff0c\u7535\u6d41\u8868\u548c\u529f\u529b\u8868\u7684\u6307\u793a\u6570\u8ba1\u7b97\u51fa\u77ac\u65f6\u529f\u7387\u56e0\u6570 \u5373\uff1acos\u03a6= P\/(\u00d7U\u00d7I) \u5f0f\u4e2dP\u4e3a\u529f\u7387\u8868\uff08\u5343\u74e6\uff09\uff0cU\u4e3a\u7535\u538b\u6307\u793a\u6570\uff08\u5343\u4f0f 0.38KV\uff09\uff0cI\u4e3a\u7535\u6d41\u8868\u6307\u793a\u6570\uff08\u5b89\uff09\u3002 <\/p>\n\n\n\n
\u2605 \u4e94\u3001 \u7535\u52a8\u673a\u63a5\u89e6\u5668\u70ed\u5143\u4ef6\u9009\u62e9 <\/p>\n\n\n\n
\u2605 \u53e3\u8bc0\uff1a\u7535\u52a8\u673a\u9009\u63a5\u6d41\uff0c\u4e24\u500d\u989d\u5b9a\u7535\u6d41\u6c42\uff0c \u7535\u52a8\u673a\u6c42\u7535\u6d41\uff0c\u5343\u74e6\u7b49\u4e8e\u4e2a\u6d41\u3002
\u7535\u52a8\u673a\u9009\u70ed\u5143\u4ef6\uff0c\u70b9\u4e8c\u500d\u989d\u6d41\u7b97\uff0c \u500d\u989d\u6d41\u6765\u6574\u5b9a\uff0c\u8fc7\u8f7d\u4fdd\u62a4\u6709\u4fdd\u8bc1\u3002 <\/p>\n\n\n\n
\u8bf4\u660e\uff1a\u4ea4\u6d41\u63a5\u89e6\u5668\u662f\u63a5\u901a\u548c\u65ad\u5f00\u7535\u52a8\u673a\u8d1f\u8f7d\u7535\u6d41\u7684\u79cd\u63a7\u5236\u7535\u5668\uff0c\u822c\u4ea4\u6d41\u63a5\u89e6\u5668\u7684\u989d\u5b9a\u7535\u6d41\u6309\u7535\u52a8\u673a\u989d\u5b9a\u7535\u6d41\u76841.3-2\u500d\u9009\u62e9\uff0c\u53e3\u8bc0\u4e2d\uff0c\u7535\u52a8\u673a\u9009\u63a5\u6d41\uff0c\u4e24\u500d\u989d\u5b9a\u7535\u6d41\u6c42\uff0c\u662f\u6307\u7535\u52a8\u673a\u9009\u62e9\u4ea4\u6d41\u63a5\u89e6\u5668\u7684\u989d\u5b9a\u7535\u6d41\u6309\u7535\u52a8\u673a\u989d\u5b9a\u7535\u6d41\u76842\u500d\u3002<\/p>\n\n\n\n
\u9009\u62e9\u53e3\u8bc0\u4e2d\u7684\u7535\u52a8\u673a\uff0c\u9009\u70ed\u5143\u4ef6\uff0c\u70b9\u4e8c\u500d\u989d\u6d41\u7b97\uff0c\u500d\u989d\u6d41\u6765\u6574\u5b9a\uff0c\u8fc7\u8f7d\u4fdd\u62a4\u6709\u4fdd\u8bc1\uff0c\u662f\u6307\u7535\u52a8\u673a\u70ed\u5143\u4ef6\u5176\u989d\u5b9a\u7535\u6d41\u6309\u7535\u52a8\u673a\u989d\u5b9a\u7535\u6d41\u76841.2\u500d\u9009\u62e9\uff0c\u6309\u7535\u52a8\u673a1\u500d\u989d\u5b9a\u7535\u6d41\u6574\u5b9a\u662f\u7535\u8def\u7684\u8fc7\u8f7d\u4fdd\u62a4\u3002 <\/p>\n\n\n\n
\u4f8b\u5982\uff1a\u6709\u53f0\u4e09\u76f8\u5f02\u6b65\u7535\u52a8\u673a\u989d\u5b9a\u7535\u538b\u4e3a380\u4f0f\uff0c\u5bb9\u91cf\u4e3a10\u5343\u74e6\uff0c \u529f\u7387\u56e0\u6570\u4e3a0.85\uff0c\u7387\u4e3a0.95\uff0c\u6c42\u7535\u52a8\u673a\u7535\u6d41\uff0c\u5e76\u9009\u62e9\u4ea4\u6d41\u63a5\u89e6\u70ed\u5143\u4ef6\u53ca\u6574\u5b9a\u503c\u3002
\u89e3\uff1a
\uff081\uff09\u7ecf\u9a8c\u53e3\u8bc0\u516c\u5f0f\uff1a10\u5343\u74e6\u00d72=20\uff08\u5b89\uff09
\uff082\uff09\u5df2\u77e5 U=380V P=10\u5343\u74e6 cos\u03a6=0.85 n=0.95
\u7535\u6d41I= P\/(\u00d7U\u00d7cos\u03a6\u00d7n) =10\/(1.73\u00d70.38\u00d70.85\u00d70.95)=20(\u5b89)
\u9009\u62e9\u4ea4\u6d41\u63a5\u89e6\u5668\uff1aKM=Ke\u00d7\uff081.3-2\uff09=20\u00d72=40\uff08\u5b89\uff09
\u9009 CJ10–40 \u9009\u70ed\u5143\u4ef6\uff1aFR=Ic\u00d7\uff081.1~1.25\uff09=20\u00d71.25=25(\u5b89)
\u9009 JR16\u201420\/30\uff0cJR\u630920\u5b89\u6574\u5b9a
\u7b54\uff1a\u7535\u52a8\u673a\u7535\u6d41\u4e3a20\u5b89\u57f9\uff0c\u900940\u5b89\u63a5\u89e6\u5668\uff0c\u70ed\u5143\u4ef6\u989d\u5b9a\u7535\u6d41\u4e3a25\u5b89\uff0c\u6574\u5b9a\u523020\u5b89\u3002 <\/p>\n\n\n\n
\u2605\u516d\u3001 \u7f18\u5bfc\u7ebf\u7684\u5b89\u7535\u6d41\u8ba1\u7b97 <\/p>\n\n\n\n
\u2605 \u53e3\u8bc0\uff08\u4e00\uff09\uff1a \u5341\u4e0b\u4e94\uff0c\u767e\u4e0a\u4e8c\uff0c\u4e8c\u4e94\u4e09\u4e94\u56db\u4e09\u754c\uff0c\u4e03\u96f6\u3001\u4e5d\u4e94\u4e24\u500d\u534a\uff0c\u88f8\u7ebf\u52a0\u534a\uff0c\u94dc\u7ebf\u5347\u7b97\uff0c\u7a7f\u7ba1\u6e29\u5ea6\u516b\u3001\u4e5d\u6298\u3002 <\/p>\n\n\n\n
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\u88f8\u7ebf\u52a0\u534a\uff0c\u94dc\u7ebf\u5347\u7b97\u662f\u6307\u622a\u9762\u7684\u88f8\u5bfc\u7ebf\uff0c\u53ef\u6309\u7f18\u5bfc\u7ebf\u4e58\u4ee51.5\u500d\u8ba1\u7b97\u5b89\u7535\u6d41\uff0c\u540c\u622a\u9762\u7684\u94dc\u5bfc\u7ebf\u6309\u94dd\u5bfc\u7ebf\u5927\u7ebf\u53f7\u7b49\u8ba1\u7b97\u5b89\u7535\u6d41\uff1b
\u7a7f\u7ba1\u6e29\u5ea6\u516b\u3001\u4e5d\u6298\u662f\u6307\u5bfc\u7ebf\u7a7f\u7ba1\u4e58\u7cfb\u65700.8\uff0c\u9ad8\u6e29\u573a\u6240\u5b9e\u7528\u4e58\u4ee5\u7cfb\u65700.9\u3002 <\/p>\n\n\n\n
\u53e3\u8bc0\u4e8c\uff1a \u4e8c\u70b9\u4e94\u4e0b\u6574\u4e5d\u500d\uff0c\u5347\u51cf\u987a\u5e8f\u5bf9\uff0c\u4e09\u5341\u4e94\u7ebf\u4e58\u4ee5\u4e09\u70b9\u4e94\uff0c\u53cc\u53cc\u6210\u7ec4\u51cf\u534a\u500d\uff0c\u9ad8\u6e29\u4e5d\u6298\uff0c\u94dc\u7ebf\u5347\uff0c\u88f8\u7ebf\u52a0\u534a\uff0c\u5bfc\u7ebf\u7a7f\u7ba1\u4e8c\u3001\u4e09\u3001\u56db\u3001\u516b\u3001\u4e03\u3001\u516d\u6298\u52ff\u5fd8\u8bb0\u3002 <\/p>\n\n\n\n
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\u9ad8\u6e29\u4e5d\u6298\uff0c\u94dc\u7ebf\u5347\uff0c\u88f8\u7ebf\u52a0\u534a\uff0c\u5bfc\u7ebf\u7a7f\u7ba1\u4e8c\u3001\u4e09\u3001\u56db\u3001\u516b\u3001\u4e03\u3001\u516d\u6298\u52ff\u5fd8\u8bb0\u662f\u6307\u5bfc\u7ebf\u7a7f\u7ba1\u4e24\u6761\u7ebf\u5e94\u4e58\u7cfb\u65700.8\uff0c\u5bfc\u7ebf\u7a7f\u7ba1\u4e09\u6761\u7ebf\u4e58\u4ee5\u7cfb\u65700.7\uff0c\u5bfc\u7ebf\u7a7f\u7ba14\u6761\u7ebf\u4e58\u4ee5\u7cfb\u65700.6\u3002 \u6ce8\u610f\uff1a\u4ee5\u4e0a\u53e3\u8bc0\uff08\u4e00\uff09\u3001\uff08\u4e8c\uff09\u662f\u4ee5\u94dd\u7f18\u5bfc\u7ebf\uff0c\u6e29\u5ea625\u5ea6\u4e3a\u51c6\u3002<\/p>\n\n\n\n
\u2605 \u4e03\u3001 380V\u4e09\u76f8\u7535\u52a8\u673a\u5bfc\u7ebf\u622a\u9762\u9009\u62e9\u8ba1\u7b97 <\/p>\n\n\n\n
\u2605 \u53e3\u8bc0\uff1a \u7535\u52a8\u673a\u9009\u5bfc\u7ebf\uff0c\u622a\u9762\u7cfb\u6570\u52a0\u51cf\u7b97\uff0c\u4e8c\u70b9\u4e94\uff0c\u4e8c\u3001\u56db\u4e3a\u4e09\uff0c\u516d\u4e0a\u5747\u4e94\uff0c\u5f80\u4e0a\u7b97\uff0c\u767e\u4e8c\u8fd4\u767e\uff0c\u5347\u51cf\uff0c\u7ebf\u5927\u5bb9\u5c0f\u9009\u3002 <\/p>\n\n\n\n
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