In industrial motor operation and power grid management, starting current multiple and starting time have long been regarded as core evaluation indicators. Industry experts emphasize that these two parameters directly relate to the safety of motors, stability of power grids, and operational efficiency of enterprises, making their monitoring and control indispensable in industrial production.
Starting current multiple, the ratio of motor starting current to rated current, is crucial for power grid stability. A excessively high multiple—common in direct-start motors—can cause sudden voltage drops in the grid, affecting the normal operation of other connected equipment. For heavy-industry scenarios with large motors, this may even trigger grid fluctuations and damage precision instruments. Meanwhile, it imposes severe thermal stress on motor windings, accelerating insulation aging and increasing failure risks.
Starting time, the duration from motor activation to stable operation, is equally vital. Prolonged starting time means the motor operates under overload conditions for an extended period, leading to excessive heat accumulation. This not only reduces motor service life but also disrupts production continuity—especially for time-sensitive processes like assembly lines and material conveying. Additionally, it increases energy consumption, undermining enterprise energy-saving goals. With the rise of smart manufacturing, precise control of these two parameters has become a key measure to enhance system reliability and reduce operational costs.
To mitigate risks, enterprises widely adopt soft-start devices and variable-frequency drives to optimize starting current multiple and shorten starting time. Experts note that neglecting these parameters can result in unplanned downtime and substantial economic losses, highlighting their irreplaceable role in modern industrial motor management.
Post time: Dec-15-2025