Measurement and analysis starting current of induction motor feded by frequency converter

Glavni nedostatak asinkronih motora za njihovu široku primjenu bila je mala mogućnost podešavanja brzine vrtnje. Efikasno i sa malo gubitaka to je postalo moguće razvojem energetske elektronike. Zahvaljujući tomu, primjena asinkronih motora u širokom spektru industrijskih procesa i pogona postala je moguća. U ovom završnom radu mjerio sam i analizirao struju pokretanja asinkronog motora pomoću frekvencijskog pretvarača Danfoss FC-302. Za komunikaciju korišten je računalni program MCT 10, koji omogućava jednostavno i efikasno podešavanje parametara pretvarača i snimanje grafova karakterističnih veličina motora. Na osnovu snimljenih grafova analizirao sam struju, napon, frekvenciju, snagu, moment i brzinu vrtnje.The main disadvantage od induction motors for their wide use was small posibility adjusting the speed of rotation. Efficientaly and with little loss it becomes possible with development of power electronics. Thanks to that, use of induction motors becomes possible in wide spectrum of industrial processes and sections. In this final work I have measured and analyzed starting current of induction motors feded by frequency converter Danfoss FC-302. For communication was used computer program MCT 10, which enables simple and efficientaly setting the converter parameters and recording charts characteristics engine sizes. Using recoreded charts I analyzed current, voltage, frequency, power, torque and speed of rotatio