22kW and below hoist with Y- transfer power-saving circuit

A hoist rated at 22kW and below is equipped with a power-saving Y-conversion circuit, as depicted in the figure. This circuit enhances the standard hoist design by incorporating a CJ20-10A exchange contactor. The implementation of the Y-conversion circuit during the downward stroke of the hoist can achieve energy savings ranging from 40% to 60%.

The described hoist system utilizes a Y-conversion circuit to optimize energy consumption during operation. The Y-conversion method is particularly effective in reducing power usage when the hoist is in its downward stroke phase. The circuit modification involves integrating a CJ20-10A exchange contactor, which facilitates the transition between different operational modes. This contactor plays a critical role in managing the electrical load and ensuring that the hoist operates efficiently.

The standard hoist circuit typically operates at full power, which can lead to unnecessary energy consumption. By incorporating the Y-conversion circuit, the system can reduce the voltage and current supplied to the motor during specific phases of operation, particularly when lowering loads. This reduction in power not only conserves energy but also minimizes wear and tear on the motor, potentially extending its operational lifespan.

In practical applications, the energy savings achieved through this circuit can significantly lower operational costs, making it an attractive solution for facilities utilizing hoisting equipment. The use of advanced control mechanisms and contactors ensures that the system remains responsive and reliable while maximizing efficiency. Overall, the integration of the Y-conversion circuit represents a significant advancement in hoist technology, providing both environmental and economic benefits.22kW and below hoist with power-saving circuit Y- conversion circuit shown in Fig. The circuit on the basis of general hoist circuit adds a CJ20-10A exchange contact contactor KMa. Using Y- conversion circuit in the hoist downward stroke can be saving 40% -60%.