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Advantages of frequency conversion speed regulation technology for hoist

Article source: admin release date: December 13, 2011

1. It realizes soft start and soft stop, reduces the mechanical impact and makes the operation more stable and reliable.
2. The speed regulation is continuous and convenient. It can be set in sections and adjusted continuously.
3. The impact current is very small when starting and accelerating shifting, which reduces the impact on the power grid, simplifies the operation and reduces the labor intensity of workers.

4. The running speed curve is S-shaped, which makes acceleration and deceleration smooth and has no impact feeling.
5. In addition to general over-voltage, under voltage, overload, short-circuit, temperature rise and other protection, it also has interlock protection and automatic speed limit protection.
6. The reliability of the system is improved and the working environment of operators is greatly improved.
7. With DC braking, energy consumption braking and feedback braking, the safety is more reliable.
8. The system operates in four quadrants, and the feedback energy is directly sent back to the power grid, and is not limited by the size of the feedback energy, so it has a wide range of applications and more obvious energy-saving effect.