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...
绛旓細鐢靛鍣ㄦ帴鍏ョ殑浣嶇疆鐨鐢靛帇寰楀埌浜嗘彁鍗囥傛墍浠ワ紝浠庣數娴佸垎娴佺殑鏂瑰紡鐪嬶細绾胯矾鍘嬮檷闄嶄綆鐨勶紝鏄ˉ鍋跨偣涔嬪墠鐨勭嚎璺傝ˉ鍋跨偣涔嬪悗鐨勭嚎璺帇闄嶆病鏈夊彉鍖栵紝鐢靛帇娌℃湁鏀瑰彉銆傚ソ鍟︼紝鐜板湪鍥炲埌浣犵殑闂锛屼綘鐨410V锛370V鍒嗗埆鏄湪閭ｄ釜鐐规祴鐨勶紵琛ュ伩浠ュ悗濡備綍锛屼綘鍙互渚濇嵁鍓嶉潰璇寸殑鏉ユ帹鏂垨璁＄畻浜嗐傜敤鍩烘湰鐨勬濮嗗畾寰嬪氨鍙互浜嗐傛棤鍔熻ˉ鍋匡紝...
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
绛旓細鏄綘杩欐娊姘存満鐨勭數鍔ㄦ満鍔熺巼澶у紩璧风殑銆傜敱浜庡姛鐜囧ぇ锛屽惎鍔ㄧ數娴佸氨澶э紝澶у埌瓒呰繃浜嗙數绾胯兘澶熸壙鍙楃殑杞芥祦閲忚屽彂鐑彂鐑傜數绾胯秴杩囦簡杞芥祦閲忓悗锛岀數绾跨殑鏈韩鐢甸樆灏辫娑堣椾竴閮ㄥ垎鐢佃兘锛岃浆鎹㈡垚鐑兘锛屼娇鐨勬娊姘存満鐢靛姩鏈虹殑鐢靛帇涓嬮檷浜嗭紝灏辨槸璇达紝鐢电嚎涓婄殑鐢靛帇鍔犱笂鐢靛姩鏈轰笂鐨勭數鍘嬩负410V锛鐜板湪鐢靛姩鏈轰笂鐢靛帇涓280V锛岄偅涔堢數绾夸笂鐨...
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
绛旓細410浼忓惎鍔ㄧ數鏈哄氨鍒370浼忓綋鐒惰兘鐢ㄣ傜數鍘370鏄甯哥殑锛屼竴鑸槸涓嶄細鎹熷潖鍙橀鍣ㄥ拰鐢垫満鐨勩傚鏋滅數鏈烘槸380v锛杩欎釜鐢靛帇浣庝簬姝ｅ父鐢靛帇5%锛屽鐢垫満鍚鍔ㄦ湁浜涘奖鍝嶇殑锛屽惎鍔ㄦ椂闂翠細鍙橀暱涓鐐癸紝涓鑸礋杞芥甯歌繍琛屽悗褰卞搷灏辩湅涓嶅嚭鏉ヤ簡锛屾讳箣褰卞搷涓嶅ぇ銆370v鐢靛帇瀹逛笉瀹规槗鐑х數鏈恒
绛旓細缁忚繃璁＄畻锛岀數缂嗗簲璇ョ敤250骞虫柟浠ヤ笂鐨勶紝鍙鐢垫満瀹归噺杩囧皬锛屽彂鐢垫満瀹归噺搴斾笉灏忎簬500KW锛鍚﹀垯搴旂缉鐭緵鐢佃窛绂伙紝鍜屽噺灏忕敤鐢佃澶囧姛鐜囷紝涔熷彲浠ラ噰鐢ㄨ蒋鍚姩锛屼絾浠ヤ綘鐩墠鏉′欢锛屼笉寤鸿閲囩敤杞惎鍔
