三相变压器容量KvA换算成电流的公式是什么 变压器的KVA怎么换算成电流A
\u53d8\u538b\u5668\u7684KVA\u600e\u4e48\u6362\u7b97\u6210\u7535\u6d41A\u529f\u7387\uff1d\u7535\u538b\u00d7\u7535\u6d41\u00d7\u6839\u53f73\u3002\u6362\u7b97\u6210\u7535\u6d41\u5c31\u662f\uff1a\u7535\u6d41\uff1d\u5bb9\u91cf\uff08KVA\uff09\u00f7\uff08\u7535\u538b\u00d7\u6839\u53f73\uff09
\u5229\u7528\u7535\u78c1\u611f\u5e94\u539f\u7406\u5236\u6210\u7684\u9759\u6b62\u7528\u7535\u5668\u3002\u5f53\u53d8\u538b\u5668\u7684\u539f\u7ebf\u5708\u63a5\u5728\u4ea4\u6d41\u7535\u6e90\u4e0a\u65f6\uff0c\u94c1\u5fc3\u4e2d\u4fbf\u4ea7\u751f\u4ea4\u53d8\u78c1\u901a\uff0c\u4ea4\u53d8\u78c1\u901a\u7528\u03c6\u8868\u793a\u3002\u539f\u3001\u526f\u7ebf\u5708\u4e2d\u7684\u03c6\u662f\u76f8\u540c\u7684\u3002
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\u6269\u5c55\u8d44\u6599\uff1a
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\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1--\u53d8\u538b\u5668
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1--\u7535\u6d41
KVA\u662f\u5bb9\u91cf\u5355\u4f4d\uff0cA\u662f\u7535\u6d41\u5355\u4f4d\u3002
\u5355\u76f8\u53d8\u538b\u5668\uff0c\u989d\u5b9aKVA\u9664\u4ee5\u989d\u5b9a\u7535\u538b\uff08V\uff09\uff0c\u518d\u4e58\u4ee51000\uff0c\u5c31\u662f\u989d\u5b9a\u7535\u6d41A\u3002
\u4e09\u76f8\u53d8\u538b\u5668\uff0c\u989d\u5b9aKVA\u9664\u4ee5\u989d\u5b9a\u7535\u538b\uff08V\uff09\uff0c\u518d\u9664\u4ee51.732\uff0c\u518d\u4e58\u4ee51000\uff0c\u5c31\u662f\u989d\u5b9a\u7535\u6d41A\u3002
额定容量/额定电压/1.732（根号3）=额定电流
线电流=无功功率/根号3倍X线电压X功率因数角的正弦
绛旓細鍙樺帇鍣ㄥ閲忥紙KVA锛変笌鐢垫祦鐨勮绠楀叕寮忎负锛欼=S/锛√3*U锛锛屽叾涓璉涓虹數娴侊紝鍗曚綅涓篈锛孲涓哄彉鍘嬪櫒瀹归噺锛屽崟浣嶄负KVA锛孶涓虹數鍘嬶紝鍗曚綅涓篕V锛√3浠ｈ〃鏍瑰彿3銆傝繖涓叕寮忔槸鍩轰簬涓夌浉浜ゆ祦鐢电殑鍔熺巼鍏紡鎺ㄥ鑰屾潵鐨勶紝瀹冨彲浠ュ府鍔╂垜浠簡瑙ｅ彉鍘嬪櫒鐨勫閲忓拰鐢垫祦涔嬮棿鐨勫叧绯汇傝缁嗘潵璇达紝鍙樺帇鍣ㄧ殑瀹归噺锛岄氬父浠ュ崈浼忓畨锛圞VA...
绛旓細浜屾渚х數娴両2=S/鈭3U2 寮忎腑锛屽彉鍘嬪櫒棰濆畾瀹归噺S锛屽崟浣峩VA锛沀1锛氫竴娆′晶棰濆畾鐢靛帇锛沀2锛氫簩娆′晶棰濆畾鐢靛帇锛汭1锛氫竴娆′晶棰濆畾鐢垫祦锛汭2锛氫簩娆′晶棰濆畾鐢垫祦銆備互1000kVA锛10/0.4kV涓夌浉鍙樺帇鍣ㄤ负渚嬶紝涓娆′晶鐢垫祦I1=S/鈭3U1=1000kVA梅锛1.732脳10kV锛夆増57.7A 浜屾渚х數娴両2=S/鈭3U2=1000kVA梅锛1.732脳0...
绛旓細KVA鏄閲忓崟浣嶏紝A鏄數娴佸崟浣銆傚崟鐩稿彉鍘嬪櫒锛岄瀹欿VA闄や互棰濆畾鐢靛帇锛圴锛夛紝鍐嶄箻浠1000锛屽氨鏄瀹氱數娴丄銆備笁鐩稿彉鍘嬪櫒锛岄瀹欿VA闄や互棰濆畾鐢靛帇锛圴锛夛紝鍐嶉櫎浠1.732锛屽啀涔樹互1000锛屽氨鏄瀹氱數娴丄銆
绛旓細棰濆畾瀹归噺/棰濆畾鐢靛帇/1.732锛堟牴鍙3锛=棰濆畾鐢垫祦
绛旓細涓夌浉鍙樺帇鍣ㄧ殑棰濆畾杈撳嚭鍔熺巼涓鸿鍦ㄥ姛鐜囷紝棰濆畾鐢垫祦璁＄畻鍏紡涓猴細鍙樺帇鍣ㄥ閲忥紙KVA锛壝凤紙1.732脳浜屾棰濆畾杈撳嚭鐢靛帇锛銆1600KVA涓夌浉鍙樺帇鍣紝瀹冪殑棰濆畾杈撳嚭鐢垫祦涓猴細1600KVA梅锛1.732脳0.4KV锛夛紳2309.5A銆傚惈涔 鍙樺帇鍣ㄧ殑鎵胯浇鐢垫祦鐢卞叾杈撳嚭鐨勬绾х數鍘嬪喅瀹氥傝嫢璇1600KVA鍙樺帇鍣ㄤ负380V鐨勪綆鍘嬮厤鐢电郴缁熺數婧愶紝鍒欏彲鎵胯浇鐨勭嚎...
绛旓細涓夌浉鍙樺帇鍣棰濆畾鐢垫祦鐨勮绠楀叕寮忎负锛氣厾锛 鍙樺帇鍣ㄩ瀹瀹归噺 梅 锛1.732 脳 鍙樺帇鍣ㄩ瀹氱數鍘嬶級銆10KV鍙樺帇鍣ㄩ珮鍘嬩晶棰濆畾鐢垫祦锛氣厾锛1250/(1.732x10)=72.17A 鍙樺帇鍣ㄧ殑棰濆畾瀹归噺锛屼互鍙婁竴娆°佷簩娆￠瀹氱數鍘嬩唬鍏ュ叕寮忥紝灏卞彲浠ヨ绠楀嚭棰濆畾鐢垫祦鐨勩10 KV 鍙樺帇鍣ㄧ殑杈撳嚭鐢靛帇涓 400 V 锛屼笉鏄 380 V 锛岃繖鏄彉鍘嬪櫒鐨勬爣鍑嗚璁...
绛旓細鍔熺巼锛濈數鍘嬅楃數娴伱楁牴鍙3銆鎹㈢畻鎴愮數娴灏辨槸锛氱數娴侊紳瀹归噺锛KVA锛壝凤紙鐢靛帇脳鏍瑰彿3锛夊埄鐢ㄧ數纾佹劅搴斿師鐞嗗埗鎴愮殑闈欐鐢ㄧ數鍣ㄣ傚綋鍙樺帇鍣鐨勫師绾垮湀鎺ュ湪浜ゆ祦鐢垫簮涓婃椂锛岄搧蹇冧腑渚夸骇鐢熶氦鍙樼閫氾紝浜ゅ彉纾侀氱敤蠁琛ㄧず銆傚師銆佸壇绾垮湀涓殑蠁鏄浉鍚岀殑銆傚彉鍘嬪櫒娆＄骇寮璺椂锛屽垵绾т粛鏈変竴瀹氱殑鐢垫祦锛岃繖閮ㄥ垎鐢垫祦绉颁负绌鸿浇鐢垫祦銆傜┖杞界數娴佺敱...
绛旓細瑙ｏ細浠涓夌浉鍙樺帇鍣棰濆畾瀹归噺S=1000kVA锛鍗曚綅kVA锛涗竴/浜屾棰濆畾鐢靛帇U1/U2=10/0.4kV 鏍规嵁S=鈭3UI锛屽彉鍘嬪櫒涓娆￠瀹鐢垫祦I1=S/鈭3U1=1000kVA梅(1.732脳10kV)鈮57.7A 鍙樺帇鍣ㄤ簩娆￠瀹氱數娴両2=S/鈭3U2=1000kVA梅(1.732脳0.4kV)鈮1443.4A ...
绛旓細鏍规嵁鍏紡璁＄畻锛鍙樺帇鍣ㄧ數娴锛欼=S/(鏍瑰彿3*U)0/0.4KV 鍙樺帇鍣ㄧ殑棰濆畾鐢垫祦璁＄畻 涓娆′晶杩戜技0.058*KVA(鍙樺帇鍣ㄥ閲,瑙勬牸10kV/0.4kV)浜屾渚ц繎浼1.44*KVA(鍙樺帇鍣ㄥ閲,瑙勬牸10kV/0.4kV)鍓爣棰樺洖绛斿涓嬭绠50KVA鍙樺帇鍣浣庡帇渚ч瀹氱數娴:50*1.44=72A璁＄畻80KVA鍙樺帇鍣ㄤ綆鍘嬩晶棰濆畾鐢垫祦:80*1.44=115.2A璁＄畻100KVA...
绛旓細鎸夊叕寮忚繘琛岃绠楋紝瀵涓夌浉鍙樺帇鍣锛屾爣绉鐢垫祦鐨勮绠楀叕寮忎负锛欼=S/锛1.732*U锛夛紱瀵逛簬10kV渚э紝鑳藉杈撳叆鐢垫祦I=2500/锛1.732*10锛=144.34A锛涘浜0.4kV渚э紝鑳藉杈撳嚭鐢垫祦I=2500/锛1.732*0.4锛=3608.44A銆備笁鐩稿彉鍘嬪櫒鐨瀹归噺I=3 * 姣忕浉瀹归噺=3 * 鐩哥數鍘 * 鐩哥數娴併備笁鐩稿彉鍘嬪櫒涓夌浉鏄熷舰杩炴帴鏃讹紝鐩哥數鍘=1...
