source:power adapter Popular:adapter release time:2021-10-21 09:25:38 Article author:sznbone
How to choose a suitable variable frequency power adapter?
There are many types of frequency power supplies, and the starting methods of different frequency conversion power supplies are also different. Industrial power supply manufacturers remind users to choose the right frequency conversion power supply according to their own needs.
Frequency conversion power supply capacity:
1. Resistance: power supply capacity=1.1×load power
2. Inductive: power supply capacity = (load starting current ÷ load rated current) × load power
3. Rectification: power supply capacity = (load current crest factor ÷ 1.5) × load power
4. Mixed type: select appropriately according to the proportion of different loads and working conditions
Motor starting method:
Direct start: The impulse current is relatively large, generally 5-8 times the rated current;
Star-delta step-down start: the inrush current is medium, generally about 3 times of the rated current;
The inverter starts: the impact current is small.
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