käynnistysmomentin

Käynnistysmomentti, often translated as starting torque or breakaway torque, refers to the maximum torque that an electric motor can produce at zero speed. This initial torque is crucial for overcoming static friction and inertia, allowing a motor to begin rotating from a standstill. It is a critical parameter for engineers designing systems that require a motor to start under load, such as conveyor belts, pumps, or industrial machinery.

The starting torque is typically higher than the motor's rated torque, which is the torque it can sustain during continuous operation. This difference is due to the motor's design and the electrical characteristics at low speeds. Factors influencing starting torque include the motor type (e.g., induction motor, DC motor), winding design, rotor resistance, and the applied voltage.

For applications where high starting torque is essential, specialized motor designs or control strategies might be employed. For instance, variable frequency drives (VFDs) can be used to control the motor's speed and torque, providing the necessary boost at startup. Understanding and accurately calculating käynnistysmomentti is vital for ensuring reliable system operation and preventing motor failure or stalling during the crucial initial phase of motion.