Soft start cabinet

 Soft start cabinet is an electrical equipment used for motor start-up control. It realizes the smooth start of the motor by using brake tube voltage regulation or other current limiting technologies, effectively reducing the starting current (usually controlled at 2-4 times the rated current) and avoiding the impact of the large current when starting directly (generally 5-8 times the fixed current). The equipment has the characteristics of adjustable starting torque (30%-70% rated torque) and set starting time (usually adjustable in 5-60 seconds), which can significantly reduce mechanical stress and impact and prolong the service life of motors and transmission equipment. The soft start cabinet is usually equipped with a bypass connector, which automatically switches to the full-voltage operation state after the start-up is completed to ensure the operation efficiency. Its perfect protection functions include overload, phase shortage, overcurrent, undervoltage and other protection, and can be automatically controlled by PLC or intelligent controller. It is widely used in the start-up control of medium and large motors such as water pumps, fans, compressors, conveyors, etc. It is especially suitable for industrial occasions where the power grid capacity is limited or requires high start-up characteristics.

Product features ：
 1. Smooth start-up and impact reduction adopt advanced voltage slope control or current-limiting start-up technology to realize the smooth acceleration of the motor from zero speed to face-definite speed, effectively reduce the start-up current (which can be controlled at 2-4 times the rated current), and avoid the impact of traditional direct start-up (5-8 times rated current) on the power grid and mechanical equipment. 2. Adjustable startup parameters 
 The start-up torque can be adjusted in the rated torque range of 30%-70%, and the start-up time can be set flexibly (usually adjustable in 5-60 seconds) to meet the start-up needs of different load characteristics and ensure the best start-up effect. 
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 3. Efficient and energy-efficient operation 
 After starting up, it will automatically switch to the bypass contactor to avoid the on-through loss of the thyristor, ensure the efficiency of the motor during the full voltage operation, and reduce the consumption. 
 4. Multiple protection functions integrate overload, phase absence, overcurrent, undervoltage, blockage and other protection mechanisms to monitor the operation status of the motor in real time to ensure the safe and reliable operation of the equipment. 5. Intelligent Controls 
 Support PLC or intelligent controller linkage, and can be connected to the automation system to realize remote monitoring, fault alarm and data recording, and improve management efficiency. 
 6. Prolonging the life of the equipment by reducing the mechanical stress and current impact at startup, it significantly reduces the wear of the motor, reducer, belt and other transmission parts, and prolongs the service life of the equipment. 7. Widespread use 
 It is especially suitable for the start-up control of large and medium-sized motors such as water pumps, fans, compressors and conveyors. It is ideal for occasions with limited grid capacity or strict requirements for start-up characteristics.