路灯线路过长到末端电压只有50V怎么办？ 分别以②④为参考结点，列出结点①的结点电压方程。。。。。电路...
\u4e3a\u4ec0\u4e48\u4e32\u8054\u7535\u8def\u4e2d\u5404\u90e8\u5206\u7535\u8def\u4e24\u7aef\u7535\u538b\u4e0e\u5176\u7535\u963b\u6210\u53cd\u6bd4 [\u7406\u5de5\u5b66\u79d1]\u4e0d\u5bf9\u554a\uff01\u4e32\u8054\u7535\u8def\u4e2d\u7535\u963b\u4e24\u7aef\u7684\u7535\u538b\u4e0e\u5176\u7535\u963b\u6210\u6b63\u6bd4\u5440\uff01\u4e32\u8054\u7535\u8def\u4e2d\u7535\u6d41\u76f8\u7b49\uff0c\u7535\u963b\u8d8a\u5927\u5176\u5206\u62c5\u7684\u7535\u538b\u4e5f\u8d8a\u5927\u554a\uff01\u4e32\u8054\u5206\u538b\uff0e
\u8282\u70b9\u7535\u538b\u6cd5\u662f\u57fa\u65bc\u6bcf\u4e2a\u8282\u70b9\u4e0a\u7535\u6d41\u800c\u5217\u51fa\u65b9\u7a0b\uff0c
\u6240\u4ee5\u8282\u70b91\u548c\u8282\u70b93\u95f4\u9700\u8981\u8bbe\u4e00\u4e2a\u7535\u6d41 i\uff0c\u53c2\u8003\u65b9\u5411\u5411\u5de6\uff0c
\u8282\u70b92\u4e3a\u53c2\u8003\u70b9:
\u8282\u70b91: (V1-V4-12)/1 + V1/0.5 +i =0
(1 + 1/0.5)V1 - V4 =12 - i
3V1 - V4 =12 - i\uff0c
\u589e\u8865\u65b9\u7a0b: V1 = U\u3002
\u8282\u70b94\u4e3a\u53c2\u8003\u70b9:
\u8282\u70b91: (V1-12)/1 + (V1-V2)/0.5 + i = 0
(1 + 1/0.5)V1 -V2/0.5 = 12 - i
3V1 - 2V2 = 12 - i\uff0c
\u589e\u8865\u65b9\u7a0b: V1-V2=U\u3002
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