The marine crane motor of new equipment or equipment that has been disassembled and inspected should first undergo an empty vehicle trial run with several revolutions. But before the equipment is finished, do not turn on the power for trial operation. In application, it is definitely prohibited to use in environments that are not allowed, and to exceed the additional load and the additional closing frequency per hour (120 times).

For variable frequency motors, starting is a very easy task, while for asynchronous motors, starting is always a crucial performance indicator. In the performance parameter indicators of asynchronous motors, starting torque and starting current are important indicators reflecting the starting

Marine motor products are machines that convert electrical energy into mechanical energy. Directly related includes the selection of bearings for marine motors. The bearing capacity of the bearing must match the power and torque of the marine motor, and the size of the bearing must match the physical space of the relevant components of the marine motor.

Starter bearings (commonly known as copper sleeves) often have loose necks and copper sleeves due to excessive wear during normal use, ultimately affecting the performance of the starter

In many marine motor applications, the marine motor is required to operate in dual-voltage mode, that is, the same marine motor can operate normally at different rated voltages, such as common 380/660V, 6/10kV dual-voltage marine motors.

For relatively high-end equipment, use necessary protective devices. When the power supply voltage is abnormal, cut off the power supply for protection. For very precise instruments, use a constant voltage power supply for adjustment. For energy-saving motor products, especially industrial energy-saving motor products, the possibility of using constant voltage devices is very small, and there are more situations of power-off protection.

Is the constant torque low-frequency adjustable? The answer is affirmative. All frequency converters basically have the function of adjusting the torque of marine motors, that is, adjusting the output torque of marine motors based on the setting of the power supply voltage and frequency ratio. This is a very practical problem in the application of variable frequency motors.

With the rapid development of power electronics technology and new semiconductor devices, AC speed regulation technology has been continuously improved and enhanced. The gradually improved frequency converter has been widely used in AC motors due to its good output waveform and excellent cost-effectiveness.

Ground insulation refers to the relative insulation state between the energized conductor of YE3 motor winding and other components to ensure that current flows along the designed path.

Marine generator sets generally adopt quasi synchronous juxtaposition. Assuming it is quasi periodic, in addition to the same phase sequence, it should also satisfy the same frequency and voltage of two generators, with fundamentally the same phase difference, and can be connected to the power grid.

Compared with wound rotor motors, cage rotor motors are more widely used. Cage rotor motors have irreplaceable advantages in both production and maintenance aspects. Its main advantage is the degree of freedom in selecting rotor slots for energy-saving motors.