Wirnik klatkowy z rozruchowymi zwojami zwartymi

Exploitation durability of the squirrel cage motor at heavy starting conditions depends on their rotor design. The most reliable induction motor for frequently repeated or long lasting starts is that with idle bars in the rotor. But idle bars design has their disadvantages as well. The idle bars should be massive, they take a pretty large volume of the active part of the rotor. In the paper a special (patented by Komel) rotor design, with short circuited turns in the slots, instead of massive idle bars is presented. Laboratory test results of an experimental squirrel cage 90 kW motor with short circuited turns in their rotor are given. The motor was designed, manufactured and tested at KOMEL Institute, Katowice, in 2014. (Squirrel cage rotor with short circuited starting turns).