电压410V,250KW电机启动后,电压降倒310V
380V 55KW \u7684\u7535\u673a\u7535\u538b\u8d85\u8fc7410V\u4f1a\u4e0d\u4f1a\u70e7\u7535\u673a\uff1f\u901a\u5e38\u7535\u673a\u7684\u989d\u5b9a\u7535\u538b\u662f380\u4f0f\uff0c\u4f46\u662f\u5728\u4e00\u5b9a\u8303\u56f4\u5185\u90fd\u80fd\u6b63\u5e38\u5de5\u4f5c\u3002\u6709\u65f6\u5019\u4e3a\u4e86\u964d\u4f4e\u80fd\u8017\uff0c\u53d8\u7535\u6240\u9002\u5f53\u63d0\u9ad8\u4f9b\u7535\u7535\u538b\u3002410\u4f0f\u5728\u6b63\u8d1f10%\u7684\u7535\u538b\u8303\u56f4\u5185\uff0c\u6240\u4ee5\u4e0d\u4f1a\u5bfc\u81f4\u7edd\u7f18\u7834\u574f\uff0c\u70e7\u6bc1\u7535\u673a\u3002
55KW\u7535\u673a\u989d\u5b9a\u7535\u6d41\u5927\u7ea6\u5728100A\u5230110A\uff0c\u5f53\u7535\u538b\u9ad8\u538b\u989d\u5b9a\u7535\u538b380\u4f0f\u7684\u65f6\u5019\uff0c\u6839\u636e\u516c\u5f0f\uff1aP=UI\uff0c\u529f\u7387\u4e00\u5b9a\uff0c\u7535\u538b\u9ad8\u7535\u6d41\u964d\u4f4e\u3002\u6240\u4ee5\u5de5\u4f5c\u7535\u6d41\u8981\u5c0f\u4e8e\u989d\u5b9a\u7535\u6d41\u3002
\u989d\u5b9a\u7535\u6d41I=P/1.732Ucos\u03a6=250000/1.732/1140/0.8=158A
\u542f\u52a8\u7535\u6d41\u7b49\u4e8e\u989d\u5b9a\u7535\u6d415\u500d\u5de6\u53f3\uff0c158X5=790A
\u542f\u52a8\u7535\u6d41790A\u5de6\u53f3\uff0c\u542f\u52a8\u7535\u6d41\u65f6\u95f4\u77ed\uff0c\u8003\u8651\u5f00\u5173\u3001\u5bfc\u7ebf\u7b49\u5143\u4ef6\u65f6\uff0c\u6309\u989d\u5b9a\u7535\u6d41\u8ba1\u7b97\u3002
绛旓細杈撶數绾跨殑鍐呴樆涓嶄负闆讹紝鍚姩鐬棿鐢垫祦寰堝ぇ锛堟槸姝e父宸ヤ綔鐨3鍊嶄互涓婂ソ鍍忥級锛岃繖鏍疯緭鐢电嚎涓婂氨浜х敓浜嗗帇闄嶏紝410-310=100V鐨鐢靛帇灏卞湪杈撶數绾夸笂浜嗭紝鑷劧鐢垫満涓ょ鐢靛帇鍙樹綆浜嗐
绛旓細鍥涖佸湪璧峰姩250KW鐢垫満鍓嶏紝姝ゅ彉鍘嬪櫒宸茬粡甯︽湁澶氬皯璐熻嵎锛熷彉鍘嬪櫒瀹归噺杩囧皬锛屽彉鍘嬪櫒鐭矾闃绘姉杩囧ぇ浼氬鑷寸數鏈鸿捣鍔ㄦ椂鐢靛帇闄嶈繃澶э紝渚涚數璺濈杩囪繙锛屾垨涓棿鏈夌ǔ鍘嬪櫒锛岀數鏈鸿捣鍔ㄦ椂涔熶細閫犳垚鐢靛帇闄嶈繃澶э紝涓鑸數鏈虹洿鎺ヨ捣鍔ㄧ數娴佹槸鐢垫満棰濆畾鐢垫祦鐨4-7鍊嶏紝鑻ョ數鏈鸿交杞借捣鍔ㄥ彲閲囩敤闄嶅帇璧峰姩鏂瑰紡锛屾槦涓夎璧峰姩涓鑸篃瑕2~3鍊嶇數鏈洪瀹氱數娴...
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绛旓細鎮ㄥソ锛屾湁浜岀鏁呴殰锛鐢靛帇杩囦綆 鐑户鐢靛櫒鐨勮繃鐑繚鎶 鏈涢噰绾 璋㈣阿
绛旓細2锛 鍒跺喎鏈虹殑璁惧棰濆畾鍔熺巼Pe=150kW 濡傛灉璁惧鍏ㄩ儴浣跨敤锛岃绠楄礋鑽蜂负166 kW 浼扮畻璐熻嵎鍦ㄦ湯绔殑绾胯矾鐢靛帇鎹熷け螖U锛呫380锛220V閰嶇數绾胯矾鐢靛帇鎹熷け鐨勭畝鏄撹绠楋細螖U锛=M梅锛圕脳S锛塎鈥旀昏礋鑽风煩锛坘W路m锛夛紝S鈥斿绾挎埅闈紙mm2锛夛紝C鈥旂數鍘嬫崯澶辫绠楃郴鏁帮紝涓夌浉鍥涚嚎锛岄摐鑺绾匡紝C=70锛岄摑鑺绾匡紝C=41.6銆侻=P...
绛旓細410V鐢靛帇楂樹簬380V鐢靛帇涓嶈冻10%锛屾甯歌礋杞界殑鐢垫満涓嶅簲璇ョ儳姣侊紝浣嗗杩樻湁杩囪浇閭e氨鏈夊彲鑳界儳姣佷簡銆
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绛旓細鍙鐢垫満鐨勯瀹氳緭鍑鐢靛帇鏄400V,鑰屼綘鏄410V鑲畾鏄數鍘嬭繃楂樼儳鐢垫満鐨勩傝繖绉嶆儏鍐靛簲璇ユ槸鍙戠數鍔涘姳纾佺粫缁勮繃鍔变骇鐢熺殑缁撴灉銆備絾鏄病鏈夎繃鍔变繚鎶よ缃悧锛
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