功率2200W,电压380V或220V怎样算出它的运转电流呢? 三相星形接法如何计算功率和电流?2200W,380V的电动机...
\u4ece220v \u5230380v\u7535\u6d41\u529f\u7387\u600e\u4e48\u8f6c\u6362\u8fc7\u6765380v\u662f\u6307\u4ea4\u6d41\u7535\u7684\u7ebf\u7535\u538b\uff0c\u5373\u4e24\u6839\u4e0d\u540c\u76f8\u5e8f\u706b\u7ebf\u4e4b\u95f4\u7684\u7535\u538b220V\u662f\u6307\u4ea4\u6d41\u7535\u7684\u76f8\u7535\u538b\uff0c\u5373\u6bcf\u6839\u706b\u7ebf\u5206\u522b\u4e0e\u96f6\u7ebf\u4e4b\u95f4\u7684\u7535\u538b\u7ebf\u7535\u538b\u662f\u76f8\u7535\u538b\u7684\u6839\u53f73\u500d\uff0c\u5373\u7ea6\u4e3a1.732\u53e6\u5916\uff0c380V\u4ee5\u53ca220V\u5747\u4e3a\u4ea4\u6d41\u7535\u7684\u6709\u6548\u503c\uff0c\u662f\u6307\u4ea4\u6d41\u7535\u7684\u6700\u5927\u503c\u9664\u4ee5\u6839\u53f72\u5f97\u6765\u3002\u8bf8\u5982\u6b64\u7c7b\uff0c\u7b49\u7b49\u7b49\u7b49\uff0c\u4e0d\u53ef\u5c3d\u8ff0\u3002\u3002\u3002
\u529f\u7387\u6307\u7684\u662f\u4e00\u4e2a\u5468\u671f\u5185\u7684\u5e73\u5747\u529f\u7387\uff0c\u7528\u76f8\u91cf\u6cd5\u6cd5\u6c42\u89e3\u7535\u6d41\uff0c380\u6307\u7ebf\u7535\u538b\uff0c\u6807\u7684\u7535\u6d41\u662f\u7535\u6d41\u76f8\u91cf\u7684\u6a21\uff0c\u540c\u4e00\u65f6\u95f4\u6bcf\u6839\u7ebf\u80af\u5b9a\u4e0d\u540c
单相的话,是P=U*I*功率因数三相的话,是P=1.732*U*I*功率因数。
绛旓細10瀹夊煿鐨勮兘閲忓彲浠ュ甫鏉2200W鐨勫姛鐜銆傚鏋滃鐢ㄥ崟鐩10a寮璺紝棰濆畾鐢靛帇涓220v锛岃兘绾х殑鍔熺巼=鐢靛帇*鐢垫祦=220V*10A=2200W銆傚鏋滄槸宸ヤ笟涓夌浉10a寮璺紝棰濆畾鐢靛帇涓380v锛岃兘甯﹀姛鐜=380V*10a*1.732*0.9=5900W銆傚姛鐜囩殑瀹氫箟:鍔熺巼鏄寚鐗╀綋鍦ㄥ崟浣嶆椂闂村唴鎵鍋氱殑鍔熴傚湪涓瀹氱殑杞熻寖鍥村唴锛屾苯杞﹀彂鍔ㄦ満鐨勫姛鐜囦笌鍙戝姩鏈鸿浆閫熸垚...
绛旓細鍔熺巼闄や互鐢靛帇绛変簬鐢垫祦锛岀數鍘闄や互鐢垫祦绛変簬鐢甸樆銆2200W/380V =5.79A, 380V/5.79A=65.6娆у 涓婅堪鍏紡鎺ㄥ鍑猴紝鐢靛帇闄や互鎷彿鍔熺巼闄や互鐢靛帇锛屽幓鎺夋嫭鍙峰彉涓虹數鍘嬪钩鏂归櫎浠ュ姛鐜囥380V*380V/2200W=65.6娆у銆
绛旓細涓鑸琁=P/鈭3*U*0.85 I=2200W/559.45=3.93A 缁欑數鏈洪厤瀵肩嚎鐨勬椂鍊欎笉搴斿氨鎸夐瀹氱數娴侀厤锛屽簲鐣欐湁浣欓噺,閫1.5mm2鐨勭嚎鏃㈠彲.鐔旀柇鍣ㄥ簲璇ョ敤5-6A鐨,涓夌浉380V棰濆畾鍔熺巼2.2kw鐨勭數鏈轰笉寤鸿鐢ㄧ啍鏂櫒锛堟槗缂虹浉锛夌敤DZ47-63 3P/6A灏忕┖姘斿紑鍏虫棦鍙.
绛旓細涓嶈兘鏀广2200w鑳藉甫鍔ㄤ笉澶т簬2200鐡﹀姛鐜囩殑鐢ㄧ數鍣ㄦ甯镐娇鐢ㄣ傞瀹氬姛鐜囨槸鎸囬瀹鐢靛帇涓嬬殑鐢靛姛鐜囷紝璐熻浇鍔熺巼鏄寚鏈澶х殑鍔熺巼锛屼竴鏃﹁秴浜嗕細鐑ц捣鏉ャ傞瀹鍔熺巼2200/4000鏄吀鍨嬬殑鍙彉鍔熺巼鐢垫満鐨勫弬鏁板硷紝杩欑鐢垫満鏈変袱绉嶅伐浣滅數鍘嬶紝鍗冲崟鐩220v鍜屼笁鐩380v锛屽湪鍗曠浉220v鏃剁殑棰濆畾鍔熺巼涓2200w锛鍦ㄤ笁鐩380v鏃堕噰鐢ㄤ笁鐩镐笁瑙掑舰杩炴帴...
绛旓細宸ヤ綔鐢垫祦10A锛屽姛鐜灏辨槸2200鐡宸﹀彸锛屾瘡灏忔椂鑰楃數閲忓氨鏄2.2搴︼紝鍏蜂綋杩樿鐪嬫槸浠涔堢數鍣ㄤ簡銆
绛旓細1銆侀鍏堢籂姝d竴涓嬶紝220v銆380v鏄鐢靛帇锛岃屼笉鏄數鑳姐2銆佺數鑳斤紝鏄寚浣跨敤鐢典互鍚勭褰㈠紡鍋氬姛(鍗充骇鐢熻兘閲)鐨勮兘鍔涖3銆2200w鏄寚璇ョ數鍣ㄧ殑鍔熺巼銆4銆佺數鍘嬩笌鐢ㄧ數鍣ㄥ尮閰嶇殑鍘熷垯锛氱數鍘嬪繀椤讳笌鐢靛櫒鐨勬爣绉扮數鍘嬬浉鍚屻
绛旓細瑙o細浠ょ數婧愪负浜ゆ祦涓夌浉380V锛鐢垫満鍔熺巼鍥犳暟cos蠁=0.8 鐢垫満棰濆畾鐢垫祦I=P/鈭3Ucos蠁=2200W梅(1.732脳380V脳0.8)鈮4.2A 绛旓細鐢垫満棰濆畾鐢垫祦绾︿负4.2瀹夈
绛旓細姣忕浉鐢垫祦鏄4.18A銆備笁鐩哥數鏈鍔熺巼璁$畻鍏紡鏄細P=U脳I脳1.732脳cos蠁 鍏朵腑锛1.732=鏍瑰彿3锛宑os蠁鏄姛鐜囧洜鏁帮紙涓鑸寜0.8宸﹀彸閫夊彇锛夈傛牴鎹叕寮忥細I=P/( U脳1.732脳cos蠁 ) =2200/(380 x 1.732 x 0.8)=2200/526=4.18A銆傛墍浠ヨ繖鍙扮數鏈哄湪棰濆畾璐熻浇涓嬶紝姣忕浉鐢垫祦鏄4.18A銆
绛旓細浜屽崄涓2200鐡鏄44鍗冪摝
绛旓細25mm²鐢电紗浜ゆ祦鐢甸樆1.363惟/KM 3KM绱姞鐢甸樆4惟 380V锛2200KW 璐熻浇 棰濆畾鐢垫祦杩6A 閲囩敤25mm²鐢电紗娌℃湁闂 绾胯矾鐢靛帇鎹熻25mm²鐢靛帇鎹熻楃巼0.536%锛80鈩 %/A*km锛 绾6V宸﹀彸 鏁呯數缂嗘湯绔數鍘嬮檷374V