libisemisrõngasmähistega

libisemisrõngasmähistega refers to a type of electrical winding used in rotating electrical machines, such as generators and motors. This winding configuration utilizes slip rings to allow for electrical current to be transferred to or from a rotating component. Specifically, it is often employed in wound rotor induction motors.

In such motors, the rotor windings are connected to a set of slip rings mounted on the rotor shaft. External resistors can be connected to these slip rings through brushes. This allows for external control of the rotor circuit's resistance. Adjusting this resistance can influence the motor's starting torque and speed characteristics. By increasing the external resistance, the starting torque can be improved, and the motor can be slowed down without excessive energy loss or overheating.

The primary advantage of using slip rings and external resistance is enhanced control over the motor's performance, particularly during startup and under varying load conditions. This contrasts with squirrel cage induction motors, where the rotor resistance is fixed. However, slip ring designs are generally more complex, require maintenance for brushes and slip rings, and can be more expensive than their squirrel cage counterparts. The term is a compound word in Estonian, literally translating to "slip ring windings."