Drainage pump motor

Pump motor is an electric motor used to drive pump loads. The pump motor adopts
efficient design and is suitable for various pump types such as centrifugal pumps,
submersible pumps, and positive displacement pumps. Its structure is sturdy and
durable, and it is widely used in railway, industrial, commercial, agricultural,
and marine engineering fields.
The rotor of a permanent magnet synchronous motor has its own magnetic field, and
the speed is completely synchronized with the stator magnetic field. The rotor of
an asynchronous motor generates magnetism through induction, and the speed is
always slightly slower than the stator magnetic field. This is the most fundamental
difference between the two, which directly leads to comprehensive differences in
performance such as efficiency, volume, and cost.
The main differences are reflected in:
1. Source of magnetic field: The rotor of a permanent magnet synchronous motor has
a built-in permanent magnet, which can establish a magnetic field without external
excitation; The rotor of an asynchronous motor is non-magnetic and generates a
magnetic field by inducing current through the stator magnetic field.
2. Speed relationship: The speed of the permanent magnet synchronous motor is
strictly synchronized with the stator magnetic field, with no slip; The
asynchronous motor speed is slightly lower than the magnetic field speed, resulting
in slip rate.
3. Starting method: Asynchronous motors can be started directly at power frequency;
Permanent magnet synchronous motors usually need to be started with a frequency
converter, making the control more complex
4. Efficiency performance: The average efficiency of permanent magnet synchronous
motors can reach over 94%, with significant energy savings under light loads; The
efficiency of asynchronous motors is usually between 89% and 91%.
5. Power density: Under the same power, the volume and weight of permanent magnet
synchronous motors are reduced by about 35% to 50%, making them more suitable for
space limited scenarios.
6. Maintenance risk: Asynchronous motors have a simple structure, high temperature
resistance, and no demagnetization risk; There is a demagnetization hazard in
permanent magnet motors at high temperatures, but the temperature rise is usually
lower

Minimum Order: 1 sets

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