three phase induction motor theory

{"title":"380Vac 22kw 15kw 37kw 45kw 55kw 3 phase ac power Motor Soft Starter For 3 Phase Induction Motor","imgUrl":"https:\/\/img.chinax.com\/nimg\/c1\/e1\/37f5b47ac52125dfe3c121be338a-200x200-1.jpg","attrs":{"Price":"USD165 to USD3000","Brand Name":"Winston\/OEM","Model Number":"WSTR3000 Series","Minimum Order Quantity":"1PCS","Delivery Time":"3-15days after get payment.","Certification":"CE,ROSH","Place of Origin":"China,Zhejiang","Payment Terms":"T\/T,L\/C,Paypal,Online Payment,RMB\/USD","Supply Ability":"10000PCS\/Month","Packaging Details":"Export standard carton box","Voltage":"380VAC","Power":"5.5KW to 630KW","Phase":"3 phase","OEM":"Yes","RS485":"Yes","Protection":"Input\/Output Phase Protection,Overload,Overcurrent protection,Short Circuit Protection","Output frequency":"50Hz\/60Hz","Input voltage":"220V\/380V","Output current":"Depend","Output type":"Triple","Output voltage":"660VAC,380VAC,220V","Weight":"as per unit","Size":"as per unit","Type":"AC to AC soft starter","Output power":"11KW~600KW","Warranty":"2 Years","Color":"Black","Application":"Fan,Motor,all kinds of 3 phase pumps,Industry,motor\/pump\/fan","Product name":"Soft starter,Motor Control Starter,Frequency Inverter","Display":"LCD","Control mode":"V\/F control vsd","Name":"AC AC soft starter,Multi-Function starter","Output":"3phase 380V,Analog output 4-20mA,3 Phase 220VAC\/380VAC","Protection class":"IP20"}}

{"title":"220VAC 5.5kw 7.5hp 7.5kw 10hp Motor Soft Starter for 3 Phase Induction Motor","imgUrl":"https:\/\/img.chinax.com\/nimg\/50\/ca\/a50556ec768184907a5682670369-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"VEIKONG","Model Number":"VKS6000","Minimum Order Quantity":"1","Delivery Time":"3 days, depend on the order quantity","Certification":"CE","Place of Origin":"China","Payment Terms":"Western Union, T\/T, L\/C, D\/A, D\/P, PayPal","Supply Ability":"15000pcs per Month","Packaging Details":"Carton","Product Name":"5.5kw 7.5kw Soft Starter","voltage":"220v\/380v","Output Frequency":"50\/60Hz","Power":"5.5kw 7.5kw","Application":"Fan,Motor,all kinds of 3 phase pumps,Industry,motor\/pump\/fan","Output":"3 Phase 220VAC\/380VAC"}}