一个12v20A的电瓶通过逆变器变成220v给8w节能灯供电,充满电能用多少个小时? 1个12V电池60A,经过逆变器升压后。变成220V,假使我...
12v 20a\u7684\u7535\u74f6\uff0c\u5145\u6ee1\u7535\uff0c\u7136\u540e\u901a\u8fc7\u4e00\u4e2a\u53d8\u538b\u5668\u53d8\u538b\u5230220v\uff0c\u4f9b\u7ed9\u989d\u5b9a\u529f\u73875w\u7684led\u706f\uff08\u5de5\u4f5c\u7535\u538b\u662f220v\uff0912V-20Ah \u5145\u6ee1\u7535\u7684\u65f6\u5019\uff0c\u7535\u80fd\u662f12 x 20 x 3600 = 864 kJ\u3002
\u5047\u8bbe\u7535\u6e90\u53d8\u6362\u540e\u7684\u5229\u7528\u7387\u662f50%\uff0c\u5c31\u53ea\u6709432kJ\u3002\u54115W\u7684\u8d1f\u8f7d\u4f9b\u7535\uff0c\u53ef\u4ee5\u7ef4\u6301T = 432/5 = 86400s
\u6216\u8005 24\u5c0f\u65f6\u3002
\u5148\u4e0d\u8003\u8651\u8f6c\u6362\u6548\u7387\uff0c12v60ah\u7684\u7535\u6c60\u6ee1\u7535\u80fd\u91cf\u662f720wh\uff0c\u4e5f\u5c31\u662f0.72\u5ea6\u7535\uff0c\u7ed93kw\u7528\uff0c\u5c31\u662f0.72/3=0.24\u5c0f\u65f6\uff0c\u4e0d\u523015\u5206\u949f\uff0c\u518d\u8003\u8651\u5230\u9006\u53d8\u5668\u5347\u538b\u6548\u7387\uff0c10\u5206\u949f\u5de6\u53f3\u3002\u53e6\u5916\uff0c\u9700\u8981\u6ce8\u610f\u8fd9\u4e48\u5927\u7535\u6d41\u653e\u7535\u5f88\u53ef\u80fd\u7535\u6c60\u53d7\u4e0d\u4e86\u3002
12*20*80%*70%/8=16.8小时,电瓶只能用掉80%电量,用光电后,电瓶寿命缩短80%,逆变器的效率大约为70%绛旓細12*20*80%*70%/8=16.8灏忔椂锛鐢电摱鍙兘鐢ㄦ帀80%鐢甸噺锛岀敤鍏夌數鍚庯紝鐢电摱瀵垮懡缂╃煭80%锛閫嗗彉鍣ㄧ殑鏁堢巼澶х害涓70
绛旓細涓鍧12V20AH鐨勭數鐡堕氳繃12V杞220V鐨閫嗗彉鍣紝杩炴帴涓鍙220V48W鐏紝鑳戒寒5灏忔椂宸﹀彸銆12V20AH鐢电摱鐨勫姛鐜囦负锛12V脳20A=240W锛岀伅鐨勫姛鐜囦负48W锛岃繖鏍峰氨寰楀嚭240W/48W=5H锛岃繖鏄湪涓嶈冭檻閫嗗彉鍣ㄧ殑鏁堢巼鏃讹紝鐏彲浠ョ偣浜5灏忔椂銆傝繖鏄悊璁烘儏鍐典笅寰楀嚭鐨勶紝瀹為檯閫嗗彉鍣ㄦ晥鐜囧彧鏈80%-85%锛屽鏋滄寜80%绠楋紝5H脳80%=4H锛屾墍浠...
绛旓細鍋囧鏄2000W鐨勭數纾佺倝锛岄嗗彉鍣ㄥ簲璇ラ夋嫨2500W鐨勩12V20AH鐨勭數鐡锛屽お灏忎簡锛岄氳繃璁$畻锛12X20X0.7=168WH 闄や互2000W锛屾弧璐熻嵎宸ヤ綔鍙湁鍑犲垎閽熴傚綋鐢电摱鐢靛帇X瀹归噺AHX绯绘暟0.7鐨勭Н鏁帮紝绛変簬2000鏃讹紝宸ヤ綔杈惧埌1灏忔椂宸﹀彸銆備粎渚涘弬鑰冦
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绛旓細12V20A鐢电摱瀹归噺鏄20At鍗20瀹夋椂锛屾墍浠12涔樹互20涔樹互60鍒嗛挓绛変簬14400鐡.鍒嗛挓锛岄櫎浠2000鐡﹀緱鏀剧數7.2鍒嗛挓銆傚疄闄呯粡閫嗗彉鍣ㄦ崯鑰楁斁鐢垫椂闂村皬浜7鍒嗛挓銆
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绛旓細鏃堕棿锛堝皬鏃讹級=鐢电摱鐢靛帇锛圴锛*鐢电摱瀹归噺锛圓H锛*80%*70%/鐢ㄧ數鍔熺巼锛圵锛=0.5灏忔椂锛鐢电摱鐢鐢垫椂闂磋绠楀叕寮忎腑锛80%琛ㄧず鐢电摱鍙兘鐢ㄦ帀80%鐢甸噺锛岀敤鍏夌數鍚庯紝鐢电摱瀵垮懡缂╃煭80%锛閫嗗彉鍣ㄧ殑鏁堢巼澶х害涓70%銆傛牴鎹兘閲忓畧鎭掔殑鍘熷垯锛12V脳20A脳1H脳渭=250WnH锛 渭锛氫负杞崲鏁堢巼灏忎簬1锛沶锛氫负灏忔椂鏁般傚垯n=锛12脳20...
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