三相鼠笼式异步210kw电机的额定电流 22千瓦三相鼠笼式异步电动机的额定电流是多少怎样计算
\u7535\u5de5\uff1a\u4e09\u76f8\u9f20\u7b3c\u5f0f\u5f02\u6b65\u7535\u673a\u7535\u6d41\u95ee\u9898\u989d\u5b9a\u7535\u6d41\u662f\u5e26\u8d1f\u8f7d\u7535\u6d41\uff0c\u7a7a\u8f7d\u7535\u6d41\u4e00\u822c\u57281/3\u989d\u5b9a\u7535\u6d41\u5de6\u53f3\uff0c\u6ca1\u6709\u5565\u5f02\u5e38\uff0c\u7a7a\u8f7d\u4e5f\u4e0d\u5168\u662f\u57281/3\u7535\u673a\u4e0d\u540c\u5dee\u522b\u4e5f\u4e0d\u540c\u3002
\u4e0d\u7528\u8ba1\u7b97\uff0c\u90a3\u4f1a\u6d89\u53ca\u5230\u5f88\u591a\u65b9\u9762\u3002
\u4e00\u822c\u56fd\u6807\u7684\u90fd\u6709\u6570\u636e\uff0c\u7535\u6d41\u572841~46A\u5de6\u53f3\uff0c\u666e\u901a\u56db\u7ea7\uff0c\u516d\u7ea7\u7535\u6d4142~44\u5b89\u3002
Ⅰe ＝Pe／Ue／√3／cosφ／η
Ⅰe →额定功率
Ue→额定电压
√3→1.732
cosφ→功率因数，约0.9
η → 电动机效率，约0.9
210000W／380／1.732／0.9／0.9
≈394A
绛旓細210kw鐢垫満鐨勯瀹氱數锛380V渚涚數绾415-420A锛10KV渚涚數绾12-12.8A
绛旓細10kw浠ヤ笂搴旇鐢ㄦ槦瑙掑惎鍔ㄥ櫒鎴栧噺鍘嬭捣鍔ㄥ櫒锛屽浜200kVA鍙樺帇鍣ㄥ甫涓鍙10KW涓夌浉寮傛鐢靛姩鏈鍙互鐩存帴鍚姩鏄病鏈夐棶棰樼殑
绛旓細2銆佺數婧愮數鍘220V锛鐢垫満涓夎褰㈡帴绾裤傜洿鎺ュ惎鍔ㄧ數娴=129.3梅鈭3=74.7A銆傚惎鍔ㄨ浆鐭=220²脳98.1梅380²=32.9Nm銆3銆乊-鈻冲惎鍔ㄧ數娴=129.3梅3=43.1A銆傚惎鍔ㄨ浆鐭=98.1梅3=32.7Nm銆傚彲浠ュ甫25%璐熻浇杞煩锛屼笉鑳藉甫60%璐熻浇銆
绛旓細380V/220V鐨榧犵寮忎笁鐩稿紓姝ョ數鍔ㄦ満姝ｅ父杩愯鏃舵槸Y鎺ユ硶锛屼笉绠″惎鍔ㄨ繕鏄繍琛岄兘涓嶈兘鏄旀帴娉曪紝鎵浠ワ紝鐢垫簮鐢靛帇涓380浼忓畠涓嶈兘鐢╕/螖鍚姩娉曞惎鍔紝鍙兘鐢ㄨˉ鍋垮櫒闄嶅帇鍚姩銆
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