Use auto-transformer step-down start Auto-transformer step-down start: connect the high-voltage side of the auto-transformer to the power grid, and the low-voltage side to the motor. When starting, use the auto-transformer tap to reduce the voltage of the motor. When the speed rises to a certain value, the auto-transformer is automatically cut off, and the motor …

Commonly Used Starting Methods for Three-Phase Asynchronous Motors Read More »

The insulation grade of the motor refers to the heat resistance grade of the insulating material used, which is divided into A, E, B, F, and H grades. The allowable temperature rise refers to the limit of the temperature rise of the motor compared with the ambient temperature. Temperature rise refers to the value of …

At What Temperature can the Motor Work Normally? Summary of Motor “Fever” Reasons! Read More »

Longbank’s low-voltage motors are considered one of the finest products we have to offer at Longbank. They have been designed to meet the specifications and performance requirements of both the International Electrotechnical Commission and the European Commission. To create low-voltage motors, several different components will be required to build them, including the following: The Rotor: …

Construction and Structure of IEC Low Voltage Motors Read More »