X
Welcome to our media center. Here are the latest additions. Here you can see the latest news and official videos of our company
Kemei's stage electric hoists are usually used in stage construction, publicity, and other places, so three-phase electricity is often used. Therefore, stage electric hoists are generally designed as three-phase electricity, but many of the reasons are due to the following drawbacks compared to using single-phase electric motors:
1. Compared to three-phase motors, single-phase motors are more expensive and have a larger volume.
2. It belongs to the category of non functional load and requires a large starting torque to ensure that the hook does not slip during aerial lifting. However, the single-phase electric starting torque is small and not suitable for use as a lifting motor, which does not meet the requirements.
3. The machine is easy to achieve forward and reverse control, as single-phase electric motors need to be stopped before switching.
4. The motor relies on capacitors to achieve forward and reverse control, which can easily generate high current impacts during startup or operation, and can easily burn out the motor, damage the capacitors and cables. Therefore, single-phase motors cannot meet the torque characteristics requirements during startup, nor can they meet the process requirements of frequent forward and reverse rotation. They are not suitable for reuse and have poor performance, so they have shortcomings.
2025-11-05
创始人
0
GET show Guangzhou International Performing Arts E...
Tianjin Kemei Machinery Manufacturing Co., Ltd. has been deeply engaged in the stage equipment manufacturing field for many years and has developed into a modern benchmark e...
2025-11-05
创始人
0
Guangzhou International Performing Arts Equipment ...
In the era of the rapid development of stage lifting equipment and intelligent acousto - optic technology, every industry event serves as a crucial opportunity for innovatio...
2025-05-27
创始人
0
Guangzhou International Professional Lighting and ...
We look forward to meeting you at the exhibition site and jointly drawing a new blueprint for industry development!
2025-02-28
创始人
0
The participation of Tianjin Kemei in the Guangzho...
Tianjin Kemei made a remarkable and eye-catching appearance at the Guangzhou (International) Performing Arts Equipment, Intelligent Acoustic, Optical and Electrical Products...
