käynnistysrasitus

Käynnistysrasitus refers to the high current drawn by an electrical device during its initial startup or when its power is first applied. This surge in current is significantly larger than the device's normal operating current and is often temporary. The magnitude and duration of this käynnistysrasitus depend on the type of device. For example, electric motors, especially induction motors, typically exhibit a high käynnistysrasitus when they begin to rotate from a standstill. Similarly, devices with heating elements or transformers can also draw substantial initial current.

Understanding käynnistysrasitus is crucial for several engineering and practical applications. Electrical systems, including wiring, circuit breakers, and power supplies, must be designed to handle these transient current peaks without tripping or failing. If a system cannot accommodate the käynnistysrasitus, it may lead to nuisance tripping of protective devices, reduced lifespan of components, or even damage. Various techniques are employed to mitigate the effects of käynnistysrasitus, such as soft starters for motors, which gradually increase voltage to reduce the initial current surge, or using power supplies with higher current handling capabilities.