三相异步电动机的直流电阻测量法法 关于电机绕组的直流电阻的测定方法
\u7535\u52a8\u673a\u76f4\u6d41\u7535\u963b\u8ba1\u7b97\u65b9\u6cd5\u7ed5\u7ec4\u76f4\u6d41\u7535\u7ec4\u7684\u6d4b\u5b9a \u5728\u7535\u673a\u8bd5\u9a8c\u4e2d\uff0c\u6709\u65f6\u9700\u8981\u6d4b\u5b9a\u7ed5\u7ec4\u7684\u76f4\u6d41\u7535\u7ec4\uff0c\u7528\u4ee5\u6821\u6838\u8bbe\u5b9a\u503c\uff0c \u8ba1\u7b97\u6548\u7387\u53ca\u7ed5\u7ec4\u7684\u6e29\u5347\u7b49\u3002\u7ed5\u7ec4\u7684\u5927\u5c0f\u662f\u968f\u6e29\u5ea6\u7684\u53d8\u5316\u800c\u53d8\u5316\u7684\uff0c\u5728 \u6d4b\u5b9a\u7ed5\u7ec4\u5b9e\u9645\u51b7\u6001\u4e0b\u7684\u76f4\u6d41\u7535\u7956\u65f6\uff0c\u8981\u540c\u65f6\u6d4b\u91cf\u7ed5\u7ec4\u7684\u6e29\u5ea6\uff0c\u4ee5\u4fbf\u5c06 \u8be5\u7535\u963b\u6362\u7b97\u6210\u57fa\u51c6\u5171\u7ec4\u6e29\u5ea6\u4e0b\u7684\u6570\u503c\u3002 \u6d4b\u91cf\u7ed5\u7ec4\u76f4\u6d41\u7535\u963b\u53ef\u4ee5\u7528\u76f4\u6d41\u4f0f\u5b89\u6cd5\u548c\u7535\u6865\u6cd5\u4e24\u79cd
\u4e00\u3001 \u76f4\u6d41\u4f0f\u5b89\u6cd5
\u6d4b\u91cf\u7535\u6e90\u91c7\u7528\u84c4\u7535\u6c60\u6216\u5176\u4ed6\u7535\u538b\u7a33\u5b9a\u7684\u76f4\u6d41\u7535\u6e90\u3002\u4e3a\u4e86\u4fdd\u62a4\u7535\u538b \u8868\u53ef\u4e32\u8054\u4e00\u6309\u94ae\u5f00\u5173 Q2\u3002 \u6d4b\u91cf\u65f6\uff0c\u5e94\u5148\u5173\u95ed\u7535\u6e90\u5f00\u5173 Q1\uff0c\u5f53\u7535\u6d41\u7a33\u5b9a\u540e\uff0c\u5728\u6309\u4e0b\u6309\u94ae\u5f00 \u5173Q2\uff0c\u63a5\u901a\u7535\u538b\u8868\uff0c\u6d4b\u91cf\u7ed5\u7ec4\u4e24\u7aef\u7535\u538b\u3002\u6d4b\u91cf\u540e\u968f\u5373\u677e\u5f00Q2\uff0c\u4f7f\u7535 \u538b\u8868\u5148\u884c\u65ad\u5f00\uff0c\u4ee5\u9632\u5728\u7535\u6e90\u65ad\u5f00\u65f6\u7ed5\u7ec4\u4ea7\u751f\u7684\u81ea\u611f\u7535\u52a8\u52bf\u635f\u574f\u7535\u538b \u8868\u3002 \u4e3a\u4e86\u4fdd\u8bc1\u8db3\u591f\u7cbe\u5ea6\u7684\u7075\u654f\u5ea6\uff0c\u7535\u6d41\u8981\u6709\u4e00\u5b9a\u7684\u6570\u503c\uff0c\u4f46\u53c8\u4e0d\u80fd\u8d85 \u8fc7\u7ed5\u7ec4\u989d\u5b9a\u7535\u6d41\u768420%\uff0c\u5e76\u5e94\u5c3d\u5feb\u540c\u65f6\u8bfb\u6570\uff0c\u4ee5\u514d\u88ab\u6d4b\u7ed5\u7ec4\u53d1\u70ed\u5f71\u54cd \u6d4b\u91cf\u51c6\u786e\u5ea6\u3002 \u6d4b\u91cf\u5c0f\u7535\u963b\u65f6\uff0c\u8003\u8651\u7535\u538b\u8868\u7684\u5206\u8def\u7535\u6d41\uff0c\u88ab\u6d4b\u7ed5\u7ec4\u7684\u76f4\u6d41\u76f4\u6d41\u7535 \u963b\u4e3a\uff1a r=U/(I-U/r V ) \u82e5\u4e0d\u8003\u8651\u7535\u538b\u8868\u7684\u5206\u6d41\uff0c\u5219 r=U/I\uff0c\u8ba1\u7b97\u503c\u6bd4\u5b9e\u9645\u7535\u963b\u503c\u7a0d\u5c0f\u3002 \u7ed5\u7ec4\u7535\u963b\u8d8a\u5c0f\uff0c\u5206\u8def\u7535\u6d41\u8d8a\u5c0f\uff0c\u8bef\u5dee\u5219\u8d8a\u5c0f\u3002 \u6d4b\u91cf\u5927\u7535\u963b\u65f6\uff0c\u8003\u8651\u5230\u7535\u6d41\u8868\u5185\u963b r A \u4e0a\u7684\u7535\u538b\u964d\uff0c\u88ab\u6d4b\u7ed5\u7ec4\u7684 \u7535\u963b\u4e3a r=(U-r A I)/I \u82e5\u4e0d\u8003\u8651\u7535\u6d41\u8868\u7684\u5185\u963b\u538b\u964d\uff0c\u5219 r=U/I\uff0c\u8ba1\u7b97\u503c\u4e2d\u5305\u62ec\u4e86\u7535\u6d41\u8868 \u7684\u5185\u963b\uff0c\u8d3e\u6bd4\u5b9e\u9645\u7684\u7535\u963b\u503c\u7a0d\u5927\u3002\u7ed5\u7ec4\u7535\u963b\u8d8a\u5927\uff0c\u7535\u6d41\u8868\u5185\u963b\u8d8a\u5c0f\uff0c \u8bef\u5dee\u4e5f\u8d8a\u5c0f\u3002 \u76f8\u5e94\u4e8e\u4e0d\u540c\u7684\u7535\u6d41\u503c\u6d4b\u91cf\u7535\u963b\u4e09\u6b21\uff0c\u53d6\u4e09\u6b21\u7684\u5e73\u5747\u503c\u4f5c\u4e3a\u7ed5\u7ec4\u7684 \u76f4\u6d41\u7535\u963b\u3002
\u4e8c\u3001 \u7535\u6865\u6cd5 \u91c7\u7528\u7535\u6865\u6cd5\u6d4b\u91cf\u7535\u963b\u65f6\uff0c\u7a76\u7adf\u91c7\u7528\u5355\u81c2\u7535\u6865\u8fd8\u662f\u53cc\u81c2\u7535\u6865\uff0c\u53d6\u51b3 \u4e8e\u88ab\u6d4b\u7ed5\u7ec4\u7684\u5927\u5c0f\u548c\u7cbe\u5ea6\u8981\u6c42\u3002\u4f46\u7ed5\u7ec4\u7535\u963b\u5c0f\u4e8e1\u03a9\u65f6\uff0c\u5219\u91c7\u7528\u53cc\u81c2 \u7535\u6865\uff0c\u5e94\u4e3a\u5355\u81c2\u7535\u6865\u6d4b\u7684\u6570\u503c\u4e2d\uff0c\u5305\u62ec\u4e86\u8fde\u63a5\u7ebf\u4e0e\u63a5\u7ebf\u67f1\u7684\u63a5\u89e6\u7535\u963b\uff0c \u8fd9\u7ed9\u4f4e\u7535\u963b\u7684\u6d4b\u91cf\u5e26\u6765\u4e86\u8bef\u5dee\u3002 \u7528\u7535\u6865\u6cd5\u6d4b\u91cf\u7535\u963b\u65f6\uff0c\u5e94\u5148\u5c06\u523b\u5ea6\u76d8\u65cb\u8f6c\u5230\u7535\u6865\u5927\u81f4\u5e73\u8861\u7684\u4f4d \u7f6e\uff0c\u7136\u540e\u6309\u4e0b\u7535\u6c60\u6309\u94ae\uff0c\u63a5\u901a\u7535\u6e90\uff0c\u5f85\u7535\u6865\u4e2d\u7684\u7535\u6d41\u8fbe\u5230\u7a33\u5b9a\u540e\uff0c\u65b9 \u53ef\u63a5\u901a\u7535\u6d41\u8ba1\uff0c\u6d4b\u91cf\u5b8c\u6bd5\u540e\uff0c\u5e94\u5148\u65ad\u5f00\u7535\u6d41\u8ba1\uff0c\u5728\u65ad\u5f00\u7535\u6e90\uff0c\u4ee5\u514d\u7535 \u6d41\u51fb\u53d7\u5230\u51b2\u51fb\u3002 \u6d4b\u5f97\u7684\u51b7\u6001\u76f4\u6d41\u7535\u963b\u6309\u4e0b\u662f\u6362\u7b97\u5230\u57fa\u51c6\u5de5\u4f5c\u6e29\u5ea6\u65f6\u7684\u7535\u963b\u503c r w =r(k+\u03b8 w )/ (k+\u03b8)
三相异步电动机的直流电阻可以采用单臂电桥进行测量。分别测量U1对U2、V1对V2、W1对W2间的直流电阻。
绛旓細鎵撳紑鎺ョ嚎鐩掞紝鎾ゆ帀杩炴帴鐗囷紝鐢ㄤ竾鐢ㄨ〃鎴栫數妗ュ垎鍒娴嬮噺U1U2銆乂1V2銆乄1W2涔嬮棿鐨勭數闃伙紝鐢垫満姝ｅ父锛孯U=RV=RW锛屾槸绾垮湀鐨勭洿娴佺數闃锛屽啀娴嬬粷缂樼數闃伙紝RUV銆丷VW銆丷WU锛孯U閾併丷v閾併丷W閾併傝繖浜涚數闃讳笉鑳藉皬浜0.5M惟
绛旓細(1) 楂樼數闃荤殑娴嬮噺 鐢ㄤ竾鐢ㄨ〃娴嬮噺锛屾垨閫氫互鐩存祦鐢碉紝娴嬪嚭鐢垫祦I鍜岀數鍘婾锛屽啀鎸夋濮嗗畾寰嬭绠楀嚭鐩存祦鐢甸樆R锛(2) 浣庣數闃荤殑娴嬮噺 鐢ㄧ簿搴﹁緝楂樼殑鐢垫ˉ娴嬮噺锛屽簲娴嬮噺涓夋锛屽彇鍏跺钩鍧囧笺傛祴閲忕粷缂樼數闃 鍏嗘琛ㄦ祴閲忕粫缁勭殑瀵瑰湴缁濈紭鐢甸樆鍜岀浉闂寸粷缂樼數闃绘槸鍏堝皢涓夌浉缁曠粍鐨6涓澶村垎鍑篣銆乂銆乄涓夌浉鐨3瀵圭澶达紝鍐嶆妸鍏嗘琛...
绛旓細涓夌浉寮傛鐢靛姩鏈轰笁鐩哥粫缁勭殑鍐锋佺洿娴佺數闃荤殑妫娴嬫柟娉曪細1銆佹祴閲忕粫缁勭殑鍐锋佺洿娴佺數闃绘渶濂藉湪鐢靛姩鏈虹殑鍐锋佷笅杩涜銆2銆佸浜庡皬鍔熺巼鐢靛姩鏈猴紝鍙洿鎺ヤ娇鐢ㄥ井娆ц锛堢數闃昏〃锛夋祴閲忥紱瀵逛簬澶у姛鐜囩數鍔ㄦ満锛岄鍏堟媶涓嬬數鍔ㄦ満鐨勮浆瀛愶紝鐢ㄤ覆鎺ヤ簬鐢垫簮涓庣數鍔ㄦ満瀹氬瓙涔嬮棿鐨勬粦鍔ㄨ噦鐢甸樆鍣ㄨ繘琛屾祴閲忋3銆佸浜庣粫绾垮紡鐢靛姩鏈猴紝鍒欓渶鎷嗕笅杞瓙缁...
绛旓細涓囩敤琛ㄦ祴涓夌浉寮傛鐢靛姩鏈锛1銆佸垏鏂數婧愶紝鐢ㄤ竾鐢ㄨ〃鐢甸樆妗娴嬬數鏈涓変釜鎺ョ嚎绔數闃伙紝搴旇鏄瘡涓や釜鎺ョ嚎绔鐨勭數闃鐩哥瓑鎴栬宸緢灏戯紝浠ュ強涓変釜鎺ョ嚎绔笌澶栧３涔嬮棿鐢甸樆鎺ヨ繎鏃犻檺澶с2銆佸鏋滅煭璺偅涔堢浉闂寸數闃诲熀鏈负闆讹紱濡傛灉缂虹浉閭ｄ箞鐩搁棿鐢甸樆鎺ヨ繎鏃犻檺澶э紱濡傛灉鎺ュ湴閭ｄ箞鐩稿湴鐢甸樆杈冨皬鎴栨帴杩戦浂锛堜竾鐢ㄨ〃娴嬮噺缁濈紭鐢甸樆涓嶅噯纭紝搴旇鐢...
绛旓細鐢靛姩鏈虹殑鐢甸樆涓嶈兘缁濆鐨勭敤涓囩敤琛ㄥ幓娴嬶紝娴嬪嚭鏉ョ殑鏁板煎彧鏄粬鐨勭洿娴佺數闃锛屼竴鑸兘鏄嚑鍗佹锛屽叾瀹炵數鍔ㄦ満鐨勯樆鎶楄繕鍖呮嫭鎰熸姉锛堜氦娴佺數闃伙級锛屼綘鍙互鐢ㄩ挸褰㈢數娴佽〃鍒嗗埆娴嬪嚭姣忕浉鐨勭數娴侊紝鐒跺悗鏍规嵁R=U鐨勫钩鏂归櫎浠銆備篃灏辨槸闃绘姉绛変簬380涔樹互380鍐嶉櫎浠ユ祴寰楃殑鐢垫祦銆備笌鍗曠浉寮傛鐢靛姩鏈虹浉姣旓紝涓夌浉寮傛鐢靛姩鏈杩愯鎬ц兘濂斤紝骞跺彲...
绛旓細3鍗冪摝涓夌浉寮傛鐢垫満鐨浜ゆ祦闃绘姉鏄細3脳380脳380梅3000=19.2娆у锛涚洿娴佺數闃诲氨鏄粫缁勯摐绾鐨勭洿娴佺數闃锛屼竴鑸湪闆剁偣鍑犳濮嗐備竴鑸笁鐩稿姩鍔涚敤鐢靛姩鏈轰竴鐩哥嚎鍦堢殑鐢甸樆閮藉湪1娆т互涓嬶紝瀹归噺瓒婂ぇ锛岀嚎鍦堢殑鐢甸樆瓒婂皬銆1娆т互涓嬬殑鐢甸樆鐢ㄦ櫘閫氫竾鐢ㄨ〃鏄娴嬮噺涓嶅嚭鏉ョ殑锛岃娴嬮噺鏅氬姩鍔涚數鏈虹嚎鍦堢數闃绘椂锛岄氬父閲囩敤鍙岃噦鐩存祦鐢垫ˉ銆 鐢靛姩...
绛旓細鐢靛姩鏈虹殑鐢甸樆涓嶈兘缁濆鐨勭敤涓囩敤琛ㄥ幓娴嬶紝娴嬪嚭鏉ョ殑鏁板煎彧鏄粬鐨勭洿娴佺數闃锛屼竴鑸兘鏄嚑鍗佹锛屽叾瀹炵數鍔ㄦ満鐨勯樆鎶楄繕鍖呮嫭鎰熸姉锛堜氦娴佺數闃伙級锛屼綘鍙互鐢ㄩ挸褰㈢數娴佽〃鍒嗗埆娴嬪嚭姣忕浉鐨勭數娴侊紝鐒跺悗鏍规嵁R=U鐨勫钩鏂归櫎浠銆備篃灏辨槸闃绘姉绛変簬380涔樹互380鍐嶉櫎浠ユ祴寰楃殑鐢垫祦 ...
绛旓細GB1032瑙勮寖瑙勫畾蹇呴』鍦ㄦ鏌ヨ瘯楠屼腑娴嬮噺涓夌浉寮傛鐢靛姩鏈虹殑涓夌浉瀹為檯鍐风姸鎬佷笅鐨勭洿娴佺數闃鍊,浣嗘病鍏蜂綋缁欏嚭涓夌浉鐢甸樆涓嶅钩琛″害鐨勫悎鏍煎尯銆備竴鑸笉骞宠 搴﹂兘鏄彇鈮ぢ5锛咃紙鍗充换鎰忎竴鐩哥殑鐢甸樆涓庝笁涓浉鐨勭數闃荤殑骞冲潎鍊肩浉姣旓紝鐩稿樊涓嶈秴杩5%)銆傜洿娴佺數闃绘娴嬬敤鐢垫ˉ娴嬮噺銆 鐢甸樆鍋忓樊涓鑸槸璇寸浉宸櫨鍒嗕箣鍑狅紝涓嶈兘璇寸浉宸嚑娆с傚56...
绛旓細鐢ㄤ竾鐢ㄨ〃閲涓夌浉寮傛鐢靛姩鏈锛1銆娴嬮噺涓夌浉缁曠粍鐨勭數闃鍊硷細濡傛灉鏄槦褰㈡帴娉曠殑鐢垫満锛屽彲鐩存帴娴嬮噺U1銆乂1銆乄1涓庡叡鎺ョU2銆乂2銆乄2杩涜娴嬮噺锛涘鏋滄槸涓夎褰㈡帴娉曠殑鐢垫満锛屽垯瑕佸幓闄よ繛鎺ョ墖锛屽啀娴嬮噺U1涓嶶2锛孷1涓嶸2锛學1涓嶹2涔嬮棿鐨勭數闃诲硷紝娴嬮噺寰楀嚭鐨勪笁鐩哥粫缁勭數闃诲肩浉杩戝垯涓哄ソ鐨勶紝鐩稿樊澶ぇ鎴栨棤绌峰ぇ鍒欎负鍧忕殑銆2銆...
绛旓細瀵鐢靛姩鏈虹殑娴嬭瘯涓ユ牸璇撮』涓婄數鍔ㄦ満璇曢獙鍙板仛鍏ㄩ潰妫楠屻傚娌″緢楂樿姹傦紝鍙寜浠ヤ笅鏂规硶娴嬭瘯锛氭祴缁曠粍鐨勭洿娴佺數闃锛孻褰㈡帴娉曠數鏈瀹归噺閮藉湪3KW浠ヤ笅锛屽彲鐢ㄤ竾鐢ㄨ〃鐩存帴娴嬪叾缁曠粍鐨勭洿娴侀樆銆傚垎鍒祴U2銆乂2銆乄2涓夌嚎涓庝腑蹇冪偣鐨勭洿娴佺數闃伙紝鎵娴嬪緱鐨勪笁涓暟鎹簲鍩烘湰涓鑷达紙濡傚樊寮傝緝澶ц鏄庝釜鍒粫缁勫彲鑳芥湁鍖濋棿鐭矾鎴栫粫缁勮繛鎺ヤ笉鑹級銆...
