Fázisvesztés

Fázisvesztés, also known as phase loss or phase failure, is a condition that occurs in three-phase electrical systems when one of the three alternating current phases becomes unavailable. This can happen due to various reasons, including blown fuses, tripped circuit breakers, damaged wiring, or issues with the power supply.

When fázisvesztés occurs in a three-phase motor, it can lead to several detrimental effects. The motor will typically continue to run, but with significantly reduced torque and increased current draw on the remaining two phases. This unbalanced current can cause the motor to overheat, leading to premature winding failure and potential motor burnout. Additionally, the reduced torque can cause the motor to stall or operate inefficiently.

In industrial and commercial settings, fázisvesztés is a common cause of equipment malfunction and downtime. Detection and prevention are crucial. Protective relays are often employed to monitor the electrical system and detect phase loss. Upon detection, these relays can immediately shut down the affected equipment to prevent damage.

Symptoms of fázisvesztés can include a motor running at a reduced speed, unusual noises, or overheating. In residential settings, where three-phase power is less common, fázisvesztés is more likely to affect larger appliances or specific circuits. Addressing fázisvesztés promptly by identifying and rectifying the cause is essential for maintaining the integrity and longevity of electrical equipment.