How to determine whether a submersible motor is copper core or aluminum core
1. Copper has better conductivity than aluminum. The current carrying capacity of copper wire cables is 6A per square meter, while aluminum wire cables are 5A.
Therefore, aluminum wire cable motors are very prone to overheating during long-term operation, and their overall characteristics are not as stable as copper wire motors.
The output power of aluminum core motors is smaller than that of copper cores, and the cable current carrying capacity is smaller,
so the output power of aluminum wire cables is 20% lower than that of copper wire cables.
2.All copper wire motors are more durable. Aluminum is larger than copper resistors and has a high calorific value in applications,
making it very easy to burn out electric motors. And aluminum and copper welding cannot be completely combined, and the power plug node is also very easy to cause burning. Therefore, the entire service life of the aluminum wire cable electric motor hot water
submersible pump is much shorter than the service life of the all copper wire electric motor centrifugal pump.
3. The copper wire motor of the hot water submersible pump is more energy-efficient.
The size of the resistor in a circuit component is directly proportional to the size of the heat, and the larger the resistor, the greater the heat.
4. The copper core motor of the hot water submersible pump has less noise.
When the average noise level increases by 5 decibels, the kinetic energy of the noise will immediately double.
The noise of the aluminum cable motor is 7 decibels higher than that of the copper core motor,
so the noise of the aluminum cable motor of the well submersible pump is twice higher than that of the copper core motor.
The noise level of the entire copper wire motor centrifugal water pump equipment has been tested to only 58 decibels.
5. The quality of aluminum wire cables for submersible pumps in wells is lightweight and relatively cost-effective,
but their impact toughness is weak. Aluminum wire cables are prone to air oxidation in the area where they are connected to the terminal.
After air oxidation at the terminal, it can cause temperature rise and looseness, which is a common cause of power outage or disconnection.
In addition, aluminum wire cables are not easy to weld, have low compressive strength and low melting point,
and are very prone to air oxidation, Causing high temperature and high consumption.
