English
ÁªÏµ±ØÍþÌåÓýapp
ÉÂÎ÷Ê¡Î÷°²ÊÐÑãËþÇø½õÒµÒ»Æ𱦵ÂÔƹÈB×ù
±äѹÆ÷ÈÝÁ¿µÄÅÌËãºÍ¶î¶¨µçÁ÷µÄÅÌËãÒªÁì
Ðû²¼Ê±¼ä£º
2020-04-08
ȪԴ£º
SCB11¸Éʽ±äѹÆ÷
±äѹÆ÷µÄÈÝÁ¿ÅÌË㣺
Ê×ÏÈÑ¡Ôñ±äѹÆ÷µÄ¶î¶¨µçѹ¡£¸ßѹ²àµçѹÓëËù½ÓÈëµçÍøµçѹÏàµÈ£¬µÍѹ²àµçѹ±ÈµÍѹ²àµçÍøµÄµçѹ¸ß10%»ò5%£¨È¡¾ö±äѹÆ÷µçѹƷ¼¶ºÍ×迹µçѹ´óС£©£»¶î¶¨ÈÝÁ¿Ñ¡Ôñ¡£
ÅÌËã±äѹÆ÷Ëù´ø¸ººÉµÄ´óС£¨ÒªÇóͳ¼Æ×î´ó×ۺϸººÉ£¬½«Óй¦¸ººÉkWÖµ»»Ëã³ÉÊÓÔÚ¹¦ÂÊkVA£©£¬ÈôÊÇÊÇÁ½Ì¨±äѹÆ÷£¬ÄÇôÿ̨±äѹÆ÷µÄÈÝÁ¿¿Éƾ֤×î´ó×ۺϸººÉµÄ70%Ñ¡Ôñ£¬Ò»Ì¨±äѹÆ÷Òª°´×ܸººÉ˼Á¿£¬²¢ÁôÓÐÊʵ±µÄÔ£¶È¡£ÆäËüÃûÅƲÎÊý¿ÉÍŽá±äѹÆ÷²úÆ·Êʵ±Ë¼Á¿¡£
ÀýÈ磺ѡÔñ35/10kV±äѹÆ÷¡£¼Ù¶¨×î´ó¸ººÉΪ3500kW£¬¹¦ÂÊÒòÊýΪ0.8£¬Ñ¡Á½Ì¨±äѹÆ÷£¬ÈÝÁ¿S=0.7×3500/0.8=3062kVA£¬¿ÉÑ¡Ôñ3150kVAµÄ±äѹÆ÷£¬µçѹ±ÈΪ35kV/10.5kV¡£ÔÙ´Ó²úƷĿ¼ÖÐÑ¡ÔñÐͺš£
Ò»¡¢±äѹÆ÷ÈÝÁ¿ÅÌË㹫ʽ£º
1¡¢ÅÌË㸺ÔصÄÿÏà×î´ó¹¦ÂÊ<BR>½«AÏà¡¢BÏà¡¢CÏàÿÏฺÔع¦ÂÊ×ÔÁ¦Ïà¼Ó£¬ÈçAÏฺÔØ×ܹ¦ÂÊ10KW£¬BÏฺÔØ×ܹ¦ÂÊ9KW£¬CÏฺÔØ×ܹ¦ÂÊ11KW£¬È¡×î´óÖµ11KW¡£(×¢£ºµ¥Ïàÿ̨װ±¸µÄ¹¦ÂÊƾ֤ÃúÅÆÉÏÃæµÄ×î´óÖµÅÌË㣬ÈýÏà×°±¸¹¦ÂʳýÒÔ3£¬¼´ÊÇÕą̂װ±¸µÄÿÏ๦ÂÊ¡£)
ÀýÈ磺CÏฺÔØ×ܹ¦ÂÊ=µçÄÔ300W×10̨)+(¿Õµ÷2KW×4̨)=11KW
2¡¢ÅÌËãÈýÏà×ܹ¦ÂÊ
11KW×3Ïà=33KW(±äѹÆ÷ÈýÏà×ܹ¦ÂÊ)
ÈýÏà×ܹ¦ÂÊ/0.8£¬ÕâÊÇ×îÖ÷ÒªµÄ°ì·¨£¬ÏÖÔÚÊг¡ÉÏÏúÊ۵ıäѹÆ÷90%ÒÔÉϹ¦ÂÊÒòËØÖ»ÓÐ0.8£¬ÒÔÊÇÐèÒª³ýÒÔ0.8µÄ¹¦ÂÊÒòËØ¡£
33KW/0.8=41.25KW(±äѹÆ÷×ܹ¦ÂÊ)
±äѹÆ÷×ܹ¦ÂÊ/0.85£¬Æ¾Ö¤¡¶µçÁ¦¹¤³ÌÉè¼ÆÊֲᡷ£¬±äѹÆ÷ÈÝÁ¿Ó¦Æ¾Ö¤ÅÌË㸺ºÉÑ¡Ôñ£¬¶ÔƽÎȸººÉ¹©µçµÄµ¥Ì¨±äѹÆ÷£¬¸ººÉÂÊÒ»Ñùƽ³£È¡85%×óÓÒ¡£
41.25KW/0.85=48.529KW(ÐèÒª¹ºÖõıäѹÆ÷¹¦ÂÊ)£¬ÄÇôÔÚ¹ºÖÃʱѡÔñ50KVAµÄ±äѹÆ÷¾Í¿ÉÒÔÁË¡£
S13Óͽþʽ±äѹÆ÷
¶þ¡¢¹ØÓÚ±äѹÆ÷ÈÝÁ¿ÅÌËãµÄһЩÎÊÌâ
1¡¢±äѹÆ÷µÄ¶î¶¨ÈÝÁ¿£¬Ó¦¸ÃÊDZäѹÆ÷ÔÚ»®¶¨µÄʹÓÃÌõ¼þÏ£¬Äܹ»°ü¹Ü±äѹÆ÷Õý³£ÔËÐеÄ×î´óÔغÉÊÓÔÚ¹¦ÂÊ£»
2¡¢Õâ¸öÊÓÔÚ¹¦ÂʾÍÊDZäѹÆ÷µÄÊä³ö¹¦ÂÊ£¬Ò²ÊDZäѹÆ÷ÄÜ´ø×î´ó¸ºÔصÄÊÓÔÚ¹¦ÂÊ£»
3¡¢±äѹÆ÷¶î¶¨ÔËÐÐʱ£¬±äѹÆ÷µÄÊä³öÊÓÔÚ¹¦Âʼ´ÊǶÈÝÁ¿£»
4¡¢±äѹÆ÷¶î¶¨ÔËÐÐʱ£¬±äѹÆ÷µÄÊäÈëÊÓÔÚ¹¦ÂÊ´óÓڶÈÝÁ¿£»
5¡¢ÓÉÓÚ±äѹÆ÷µÄЧÂʺܸߣ¬Ò»Ñùƽ³£ÒÔΪ±äѹÆ÷¶î¶¨ÔËÐÐʱ£¬±äѹÆ÷µÄÊäÈëÊÓÔÚ¹¦Âʼ´ÊǶÈÝÁ¿£¬Óɴ˾ÙÐеÄÔËË㼰Ч¹ûÒ²ÊÇ»ù±¾×¼È·µÄ£»
6¡¢ÒÔÊÇÔÚʹÓñäѹÆ÷ʱ£¬ÄãÖ»ÒªÊÓ²ì±äѹÆ÷Êä³öµÄµçÁ÷¡¢µçѹ¡¢¹¦ÂÊÒòÊý¼°ÆäÊÓÔÚ¹¦Âʼ´ÊÇ»òСÓڶÈÝÁ¿¾ÍÊÇÇå¾²µÄ(ʹÓÃÌõ¼þÖª×ãʱ)£»
7¡¢ÓÐÈËÒÔΪ±äѹÆ÷ÓÐÏûºÄ£¬±ØÐèÔڶÈÝÁ¿90%ÒÔÏÂÔËÐÐÊǹýʧµÄ£¡
8¡¢±äѹÆ÷ÔÚÉè¼ÆÑ¡ÓÃÈÝÁ¿Ê±£¬Æ¾Ö¤ÅÌË㸺ºÉÒª³ËÒÔÇ徲ϵÊýÊǶԵġ£
¿ÉÒÔ¿´µ½±äѹÆ÷ÈÝÁ¿ÅÌËã×Åʵ²»ÄÑ¡£Ö÷ÒªÊÇҪעÖرäѹÆ÷ÈÝÁ¿ÅÌËãµÄһЩÎÊÌâ¡£
±äѹÆ÷¶î¶¨µçÁ÷ÅÌË㣺
¶î¶¨µçÁ÷ÊÇÖ¸Óõç×°±¸ÔڶµçѹÏ£¬Æ¾Ö¤¶î¶¨¹¦ÂÊÔËÐÐʱµÄµçÁ÷¡£Ò²¿É½ç˵ΪµçÆø×°±¸ÔڶÇéÐÎÌõ¼þ£¨ÇéÐÎζȡ¢ÈÕÕÕ¡¢º£°Î¡¢×°ÖÃÌõ¼þµÈ£©Ï¿ÉÒÔºã¾ÃÒ»Á¬ÊÂÇéµÄµçÁ÷¡£ÓõçÆ÷Õý³£ÊÂÇéʱµÄµçÁ÷²»Ó¦Áè¼ÝËüµÄ¶î¶¨µçÁ÷¡£
¶î¶¨µçÁ÷ÊÇÓÉÈÆ×éµÄ¶î¶¨ÈÝÁ¿³ýÒÔ¸ÃÈÆ×éµÄ¶î¶¨µçѹ¼°ÏìÓ¦µÄϵÊý£¨µ¥ÏàΪ1£¬ÈýÏàΪ√3£©¶øËãµÃµÄÁ÷¾ÈÆ×éÏ߶˵ĵçÁ÷¡£Òò´Ë£¬±äѹÆ÷µÄ¶î¶¨µçÁ÷¾ÍÊǸ÷ÈÆ×éµÄ¶î¶¨µçÁ÷£¬ÊÇÖ¸ÏßµçÁ÷¡£¿ÉÊÇ£¬×é³ÉÈýÏà×éµÄµ¥Ïà±äѹÆ÷£¬ÈçÈÆ×éΪÈý½ÇÐÎÁªÂ磬ÈÆ×éµÄ¶î¶¨µçÁ÷ÔòÒÔÏßµçÁ÷Ϊ·Ö×Ó£¬ÒÔ√3Ϊ·ÖĸÀ´ÌåÏÖ£¬ÀýÈçÏßµçÁ÷Ϊ500A£¬ÔòÈÆ×éµÄ¶î¶¨µçÁ÷Ϊ£¨500/√3£©A¡£
±äѹÆ÷ÔڶÈÝÁ¿ÏÂÔËÐÐʱ£¬ÈÆ×éµÄµçÁ÷Ϊ¶î¶¨µçÁ÷¡£²ÎÕÕ¹ú¼Ò±ê×¼GB/T15164—1994¡¶ÓͽþʽµçÁ¦±äѹÆ÷¸ºÔص¼Ôò¡·£¬±äѹÆ÷¿ÉÒÔ¹ýÔØÔËÐУ¬ÈýÏàµÄ¶î¶¨ÈÝÁ¿²»Áè¼Ý100 MVA£¨µ¥Ï಻Áè¼Ý33.3 MVA£©Ê±£¬¿ÉÔâÊܸºÔØÂÊ£¨¸ºÔصçÁ÷/¶î¶¨µçÁ÷£©²»´óÓÚ1.5µÄż·¢ÐÔ¹ýÔØ£¬ÈÝÁ¿¸ü´óʱ¿ÉÔâÊܸºÔØÂʲ»Áè¼Ý1.3µÄż·¢ÐÔ¹ýÔØ¡£
Ì×¹ÜÒ²Ó¦ÓÐÏìÓ¦µÄ¹ýÔØÄÜÁ¦£¬ÈÆ×éÈÈÃÅζȺͶ¥²ãÓÍζȻ®·Ö²»¿ÉÁè¼Ý140¡æºÍ105¡æ¡£
¶î¶¨µçÁ÷Ñ¡Ôñ£º
£¨Ò»£©Í¨Ë׵翹Æ÷µÄ¶î¶¨µçÁ÷Ñ¡Ôñ
£¨1£©µç¿¹Æ÷ÏÕЩûÓйý¸ººÉÄÜÁ¦£¬ÒÔÊÇÖ÷±äѹÆ÷»ò³öÏ߻طµÄµç¿¹Æ÷£¬Ó¦°´»Ø·×î´óÊÂÇéµçÁ÷Ñ¡Ôñ£¬¶ø²»¿ÉÓÃÕý³£Ò»Á¬ÊÂÇéµçÁ÷Ñ¡Ôñ¡£
£¨2£©¹ØÓÚ·¢µç³§Ä¸Ï߷ֶλØ·µÄµç¿¹Æ÷£¬Ó¦Æ¾Ö¤Ä¸ÏßÉÏʹÊÇжÏ×î´óһ̨·¢µç»úʱ£¬¿ÉÄÜͨ¹ýµç¿¹µÄµçÁ÷Ñ¡Ôñ¡£Ò»Ñùƽ³£È¡¸Ą̃·¢µç»ú¶î¶¨µçÁ÷µÄ50%¡«80%¡£
£¨3£©±äµçËùĸÏ߷ֶλØ·µÄµç¿¹Ó¦Öª×ãÓû§µÄÒ»¼¶¸ººÉºÍ´ó²¿·Ö¶þ¼¶¸ººÉµÄÒªÇó¡£
£¨¶þ£©ÆÆËéµç¿¹Æ÷µÄ¶î¶¨µçÁ÷Ñ¡Ôñ
£¨1£©µ±ÓÉÓÚ·¢µç³§µÄ·¢µç»ú»òÖ÷±äѹÆ÷»Ø·ʱ£¬Ò»Ñùƽ³£°´·¢µç»ú»òÖ÷±äѹÆ÷¶î¶¨µçÁ÷µÄ70%Ñ¡Ôñ¡£
£¨2£©µ±ÓÃÓÚ±äµçËùÖ÷±äѹÆ÷»Ø·ʱ£¬Ó¦°´¸ººÉµçÁ÷´óµÄÒ»±ÛÖÐͨ¹ýµÄ×î´ó¸ººÉµçÁ÷Ñ¡Ôñ¡£µ±ÎÞ¸ººÉ×ÊÁÏʱ£¬Ò»Ñùƽ³£°´Ö÷±äѹÆ÷¶î¶¨µçÁ÷µÄ70%Ñ¡Ôñ¡£
±äѹÆ÷¶î¶¨µçÁ÷ÔõôÅÌË㣺
±äѹÆ÷¶î¶¨µçÁ÷±í
±äѹÆ÷¶î¶¨µçÁ÷ÅÌË㣺
±äѹÆ÷¶î¶¨µçÁ÷ I1N/I2N£¬µ¥Î»ÎªA¡¢kA¡£ÊDZäѹÆ÷Õý³£ÔËÐÐʱËùÄܼ縺µÄµçÁ÷£¬ÔÚÈýÏà±äѹÆ÷Öоù´ú±íÏßµçÁ÷¡£
±äѹÆ÷¶î¶¨µçÁ÷ÅÌË㹫ʽ ¶Ôµ¥Ïà±äѹÆ÷£ºI1N = SN/ U1N I2N = SN / U2N ¶ÔÈýÏà±äѹÆ÷£ºI1N=SN/£Ûsqrt£¨3£©U1N£Ý I2N=SN/£Ûsqrt£¨3£©U2N£Ý
U1NΪÕý³£ÔËÐÐʱһ´Î²àÓ¦¼ÓµÄµçѹ¡£U2NΪһ´Î²à¼Ó¶î¶¨µçѹ¡¢¶þ´Î²à´¦ÓÚ¿ÕÔØʱµÄµçѹ¡£µ¥Î»ÎªV¡£Ïà±äѹÆ÷ÖУ¬¶î¶¨µçѹָµÄÊÇÏßµçѹ¡£
SNΪ±äѹÆ÷¶î¶¨ÈÝÁ¿£¬µ¥Î»ÎªVA¡¢kVA¡¢MVA£¬NΪ±äѹÆ÷µÄÊÓÔÚ¹¦ÂÊ¡£Í¨³£°Ñ±äѹÆ÷Ò»¡¢¶þ´Î²àµÄ¶î¶¨ÈÝÁ¿Éè¼ÆΪ ¡£
I1NΪÕý³£ÔËÐÐʱһ´Î²à±äѹÆ÷¶î¶¨µçÁ÷¡£I2NΪһ´Î²à±äѹÆ÷¶î¶¨µçÁ÷¡£µ¥Î»ÎªA¡£
250KVAÓÐÓÃʹÓù¦Âʼ´ÊÇ°Ù·ÖÖ®°ËÊ®£¬250KVA¼´ÊÇ200KW ±äѹÆ÷¶þ´Î²àµçÁ÷=±äѹÆ÷¶î¶¨ÈÝÁ¿*1.44¡£
ÀýÈ磺100KVA±äѹÆ÷¶þ´Î²àµçÁ÷
I=100*1.44=144£¨A£©
ÖÖÖÖÈÝÁ¿±äѹÆ÷Æéá«Ñ¹²à¶î¶¨µçÁ÷µÄÊý¾Ý£¨°üÀ¨20¡¢30¡¢50¡¢80¡¢100¡¢160¡¢200¡¢250¡¢315¡¢400KVAµÈ£©
±äѹÆ÷ÈÝÁ¿20¡¢30¡¢ 50¡¢ 80¡¢ 100¡¢ 160¡¢ 200¡¢ 250¡¢ 315¡¢ 400KVA
¸ßѹ²àµçÁ÷1.15¡¢1.73¡¢2.88¡¢4.62¡¢5.77¡¢ 9.23¡¢11.2¡¢14.43¡¢18.2¡¢ 22.4
µÍѹ²àµçÁ÷28.9¡¢43.2¡¢ 72¡¢ 115.2¡¢144¡¢230.4¡¢288¡¢ 360¡¢453.6¡¢ 576 ÒÑÖª±äѹÆ÷ÈÝÁ¿£¬ÇóÆä¸÷µçѹƷ¼¶²à¶î¶¨µçÁ÷¡£¿Ú¾÷a £º
ÈÝÁ¿³ýÒÔµçѹֵ£¬ÆäÉ̳ËÁù³ýÒÔÊ®¡£
˵Ã÷£ºÊÊÓÃÓÚÈκεçѹƷ¼¶¡£
ÔÚÒ»Ñùƽ³£ÊÂÇéÖУ¬ÓÐЩµç¹¤Ö»Éæ¼°Ò»Á½ÖÖµçѹƷ¼¶µÄ±äѹÆ÷¶î¶¨µçÁ÷µÄÅÌËã¡£½«ÒÔÉÏ¿Ú¾÷¼ò»¯£¬Ôò¿ÉÍƵ¼³öÅÌËã¸÷µçѹƷ¼¶²à¶î¶¨µçÁ÷µÄ¿Ú¾÷£ºÈÝÁ¿ÏµÊýÏà³ËÇó¡£ÒÑÖª±äѹÆ÷ÈÝÁ¿£¬ËÙËãÆäÒ»¡¢¶þ´Î±£»¤ÈÛ¶ÏÌ壨Ë׳ưü¹ÜË¿£©µÄµçÁ÷Öµ¡£¿Ú¾÷£º
Åä±ä¸ßѹÈÛ¶ÏÌ壬ÈÝÁ¿µçѹÏà±ÈÇó¡£
Åä±äµÍѹÈÛ¶ÏÌ壬ÈÝÁ¿³Ë9³ýÒÔ5¡£
˵Ã÷£º×¼È·Ñ¡ÓÃÈÛ¶ÏÌå¶Ô±äѹÆ÷µÄÇå¾²ÔËÐйØϵ¼«´ó¡£µ±½öÓÃÈÛ¶ÏÆ÷×÷±äѹÆ÷¸ß¡¢µÍѹ²à±£»¤Ê±£¬ÈÛÌåµÄ׼ȷѡÓøüΪÖ÷Òª¡£ÕâÊǵ繤¾³£Óöµ½ºÍÒª½â¾öµÄÎÊÌâ¡£
±äѹÆ÷ÈÝÁ¿ÅÌËã,±äѹÆ÷¶î¶¨µçÁ÷ÅÌËã,¸Éʽ±äѹÆ÷,Óͽþʽ±äѹÆ÷,±äѹÆ÷¶î¶¨µçÁ÷±í
ÉÏÒ»Ò³
ÏÂÒ»Ò³
ÉÏÒ»Ò³
ÏÂÒ»Ò³
Ïà¹ØÐÅÏ¢