???? (1) ?ù???ú?÷￡o
???? μ??ˉ?ú???¨μ?á÷(A)￡o“μ??ˉ?ú1|?ê?ó±?”￡??′“ò????§í?á?°2?à”?￡í¨3￡??3￡ó?μ?380V?￠1|?êòòêy?ú0.8×óóòμ?èy?àòì2?μ??ˉ?ú￡?“???§í?êy?óò?±?”?′μ??ˉ?úμ????¨μ?á÷?￡
???? (2) ?-?é1?ê?￡o
???? μ??ˉ?ú???¨μ?á÷(A)=μ??ˉ?úèYá?(kW)êy×2
???? é?ê?μ??ù???ú?÷oí?-?é1?ê?μ?ê1ó??á1???ê?ò???μ?￡??ù??3?μ????¨μ?á÷ó?μ??ˉ?ú?ú??é?μ?êμ?êμ?á÷êy?μ·?3￡?ó?ü￡?·?o?êμó?òa?ó￡?àyè?ò?ì¨Y132S1-2￡?10kWμ??ˉ?ú￡?ó??ù???ú?÷?ò?-?é1?ê???μ??????¨μ?á÷￡o10×2=20A?￡

?t??μ??ˉ?ú??ó????·?÷μ?????

     μí?1???·?÷ò?°?·??a?üá?ía??ê?(ó?3?×°??ê?)oí?ò?üê?(ó?3?íò?üê?)á?′óàà?￡380V245kW?°ò???μ?μ??ˉ?ú?à??ó??ü?????·?÷?￡???·?÷°′ó?í??é·??a±￡?¤??μ????·ó??￠±￡?¤μ??ˉ?úó??￠±￡?¤???÷???·ó?oí??μ?±￡?¤ó?μè?￡

2.1??μ??ˉ?ú±￡?¤ó????·?÷??ó??-?ò
(1) 3¤?óê±μ?á÷???¨?μμèóúμ??ˉ?ú???¨μ?á÷?￡
(2) ?2ê±???¨μ?á÷￡o??óú±￡?¤áyDíμ??ˉ?úμ????·?÷￡??2ê±???¨μ?á÷μèóú(8??15)±?μ??ˉ?ú???¨μ?á÷￡?è???óú±?±￡?¤áyDíμ??ˉ?úμ?Dío??￠èYá?oí?e?ˉì??t?￡??óú±￡?¤è???×a×óμ??ˉ?úμ????·?÷￡??2ê±???¨μ?á÷μèóú(3??6)±?μ??ˉ?ú???¨μ?á÷￡?è???óú±?±￡?¤è???×a×óμ??ˉ?úμ?Dío??￠èYá??°?e?ˉì??t?￡
(3) 6±?3¤?óê±μ?á÷???¨?μμ??é·μ??ê±??′óóú?òμèóúμ??ˉ?úμ??e?ˉê±???￡°′?e?ˉ?o??μ??á??￡??é??ó?·μ??ê±??1s?￠3s?￠5s?￠8s?￠15s?Dμ??3ò?μμ?￡

2.2?????·?÷í????÷???¨μ?á÷μ??ù???ú?÷
“μ??ˉ?ú?2?ˉ￡??§í?20±?”
“èèí????÷￡?°′???¨?μ”
é?ê??ú?÷ê???????±￡?¤ò?ì¨380Vèy?àáyDíμ??ˉ?úμ????·?÷￡???μ?′?í????2ê±?ˉ×÷???¨μ?á÷￡??é°′“?§í?”êyμ?20±?”??ó??￡??óúèèí????÷￡??ò°′μ??ˉ?úμ????¨μ?á÷?????￡

èy??μ??ˉ?ú??ó?è????÷μ?????

     ????è????÷àà±e?°èYá?ê±￡?òa?ù?Y?o??μ?±￡?¤ì?D??￠?ì?·μ?á÷μ?′óD?oíê1ó?3?o?μ?1¤×÷ì??t?￡
′ó?àêy?DD?Díμ??ˉ?ú2éó??á??è??1?ò???1?e?ˉ￡??e?ˉμ?á÷ò?°??a???¨μ?á÷μ?5??7±?￡?μ??′èYá???′ó￡?μí?1??μ??÷±??1?÷1000??400kVA(°üà¨2￠áD??DDèYá?)￡??μí3×è?1D?￡?μ±·￠éú?ì?·1ê??ê±￡??ì?·μ?á÷??′ó￡?1¤×÷3?o?è?ò¤?￠·??￥3?o?￡?í¨·?ì??t2?￡???ê11¤×÷?·?3???è?????￡òò′?￡???ó?è????÷μ?·????üá|oíè?ì?μ????¨μ?á÷￡?????ò?°?1¤òμê1ó?òaêêμ±?ó′óò?μ??￡

3.1??è?ì????¨μ?á÷μ??-?é1?ê?
è?ì????¨μ?á÷(A)=μ??ˉ?ú???¨μ?á÷(A)×3
3.2??è?ì????¨μ?á÷μ??ù???ú?÷
“è?ì?±￡?¤￡??§í?3?6”
???ù???ú?÷￡???μ?ê?ò?ì¨380VáyDíμ??ˉ?ú￡??á??è??1?e?ˉ?ò???1?e?ˉ￡?2ù×÷?μ?ê??μí￡?êêo?óú90kW?°ò???μ?áyDíμ??ˉ?ú?￡
è?êμ?êê1ó?μ?μ??ˉ?ú?e?ˉ?μ·±￡??ò???e?ˉê±??3¤￡??òé?ê?μ??-?é1?ê??ò?ù???ú?÷?ù??μ??á1??éêêμ±?ó′óò?μ?￡?μ?ó?2?ò?1y′ó?￡×ü??òa′?μ??úμ??ˉ?ú?e?ˉê±￡?è?ì?2?±?è???￡??ú·￠éú?ì?·1ê??ê±￡?è?ì?±?D??é??è???￡??D??μ??′￡?′?μ??ì?·±￡?¤????μ??￡

????μ??ˉ?ú??ó??ó′￥?÷μ?????

4.1???ó′￥?÷μ???ó??-?ò
(1) °′ê1ó?àà±e??ó?￡o
éú2úêμ?ê?D￡???′ó?àêyáyDíμ??ˉ?úê1ó?é?￡??ù±?ê?óú°′AC-3ê1ó?àà±e??ó??￡
(2) è·?¨èYá?μè??￡o
?ó′￥?÷μ?èYá??′?÷′￥í·?ú???¨μ??1μè??ê?ì??t??￡??????¨μ?á÷μ?è·?¨￡?ó|×￠òaè?????μ?￡o

1)1¤×÷???°1¤×÷?μ?êμ?ó°?ì￡o
??ó??ó′￥?÷ê±￡?ó|×￠òa?????????óê?3¤?ú1¤×÷??￡??1ê????′?ìê±1¤×÷???￡?ú2ù×÷?μ?ê??ê±￡??1±?D????????ó?ó′￥?÷???¨μ?á÷μ?èYá??￡ó|???é?ü??ó?ò??￠ò?o??e?ò?aò?′￥í·μ??ó′￥?÷￡?è?2éó?KSDZ￡-U?μáD2ú?·?￡
2)?·?3ì??tμ?ó°?ì
éú2úá÷3ìμ??·?3±è????áóμ?￡?·?3???è?????￡?í¨·?ì??t2?￡?1¤×÷3??ù???è?????￡òa???ó′￥?÷μ?????ò?2éè??μèYê1ó?μ???ê?′?ê??￡

4.2???ó′￥?÷???¨μ?á÷μ???±í?ù2é
     àyè?ò?ì¨Y180L-4￡?22kWμ??ˉ?ú￡?′ó?ù2é±í2éμ?ó|??ó?U60Dí?ó′￥?÷?￡??μ??ú???¨μ?á÷60A￡??ó′￥?÷???¨μ?á÷60A￡?°′ò?°?AC-31¤×÷àà±e￡????ó′￥?÷?é????380Vμ??ˉ?ú1|?ê?a30kW￡????ú????380V??22kWμ??ˉ?ú￡?ê?óú?μèYê1ó??￡
?ó′￥?÷Dío? èy?àμ??ú1|?ê
10 20 30 40 50 60 70 80 90 100 120 140 170 200 250 300
KSDZ-U40 ?? ??              
KSDZ-U63 ?? ?? ??             
KSDZ-U80  ?? ?? ??            
KSDZ-U125   ?? ?? ?? ??          
KSDZ-U160     ?? ?? ?? ??        
KSDZ-U200       ?? ?? ?? ??      
CKJ5-250        ?? ?? ?? ??     
CKJ5-400          ?? ?? ?? ?? ??  
CKJ5-600            ?? ?? ?? ?? ??

?? μ??ˉ?ú????

μ??ˉ?ú?????ú?÷

“1.5?ó?t￡?2.5?óèy”
“4?ó??￡?6oó?óáù”
“25oó?ó??￡?50oóμY??????
“°ù?tμ???￡???°ùêy”
???ú?÷ê?°′èy?à380V??á÷μ??ˉ?úèYá??±?ó????μ???μ??￡
“1.5?ó?t”±íê?1.5mm2μ?í-D??üá???￡??ü??3.5kWμ??°ò???μ?μ??ˉ?ú?￡óéóú4kWμ??ˉ?ú?ó?ü3.5kWμ???è?ó?·??§￡????ò???ú?÷ó?óDò??¨μ?óàá?￡??ùò??ú?ù2é±í?D4kWò???μ?μ??ˉ?ú?ù??μ?????è?1.5mm2?￡“2.5?óèy”?￠“4oó?ó??”￡?±íê?2.5mm2?°4mm2μ?í-D??üá???·?±e?ü??5.5kW?￠8kWμ??ˉ?ú?￡
“6oó?óáù”￡?ê??μ′ó6mm2μ??aê?￡??ü??“?ó′óáù”kWμ?μ??ˉ?ú?￡?′6mm2μ??é??12kW￡????à?ü1????′??11kWμ??ˉ?ú?￡10mm2?é??16kW￡????à?ü1????′??15kWμ??ˉ?ú?￡16mm2?é??22kWμ??ˉ?ú?￡?a?D???1óD18.5kWμ??ˉ?ú￡?òà??16mm2μ?í-D??üá????￡

“25oó?ó??”￡?ê??μ′ó25mm2?aê?￡??óêyóéáù???a??á??￡?′25mm2?é??30kWμ?μ??ˉ?ú?￡35mm2?é??40kW￡????à?ü1????′??37kWμ??ˉ?ú?￡
“50oóμY??????”￡?ê??μ′ó50mm2?aê?￡?óé?ó′ó±?3é??éùá?￡????òê??e??μY??????μ??￡?′50mm2?é????45kWμ??ˉ?ú(50-5)?￡70mm2?é??60kW(70-10)￡????à?ü1????′??±?55kWμ??ˉ?ú?￡95mm2?é??80kW(95-15)￡????à?ü1????′??75kWμ??ˉ?ú?￡
“°ù?tμ???￡???°ùêy”￡?ê??μ120mm2μ?í-D??üá????é??100kWμ??ˉ?ú￡????à1????′90kWμ??ˉ?ú?￡