Three Phase Ac Motor
What is a Three Phase Ac Motor?
Three-phase AC motors are the most stable and fault-tolerant power drive devices in industrial constant-speed transmission systems. They achieve constant speed output by relying on three-phase AC power supply, requiring no complex driver programs or additional control modules; they operate stably immediately upon power-on. Compared to variable frequency motors and DC motors, this three-phase AC motor boasts a minimalist structure, strong resistance to power grid fluctuations, and wide adaptability to various operating conditions, making it ideal for long-term, high-load, and continuous mass production industrial scenarios.
The entire unit employs a refined electromagnetic simulation design, high-density winding arrangement, and a low-loss iron core combination, achieving professional-grade performance with smooth start-up, constant speed, minimal load fluctuations, and high long-term operational consistency. It is a globally recognized mainstream industrial drive model.
High starting torque design ensures smooth start-up under heavy loads. Addressing the pain points of heavy-load starting in crushers, mixers, and conveying equipment, this motor optimizes the rotor slot shape and guide bar structure, increasing the starting torque multiple. The starting current is stable and controllable, with minimal impact, preventing stalling and tripping.
Constant speed output ensures higher equipment consistency. The core advantage of a three-phase AC power frequency motor is its consistently high speed. Speed fluctuations are minimal, ensuring stable fan airflow, constant pump water pressure, uniform machine tool machining accuracy, and uniform conveying equipment speed. This effectively avoids problems such as batch production errors, equipment vibration, and unstable operating conditions.
Rigid overall structure for vibration and fatigue resistance. The base is made of high-strength cast/aluminum-iron integral molding, with thickened and reinforced end covers and precision-machined bearing positions, resulting in a strong overall structural rigidity. It is not easily deformed or displaced under long-term high-frequency vibration, continuous start-stop, and heavy-load impact conditions. Bearing life is significantly extended, and the overall fatigue resistance is suitable for long-term industrial mass production.
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Model |
3 Phase Electric Motor |
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Frame |
56~355 |
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Power |
0.09~335KW |
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Speed |
3000rpm, 1500rpm, 1000rpm |
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Voltage |
220/380V, 230/400V, 380/660V, 400/690V, etc |
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Frequency |
50HZ/60HZ |
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Efficiency |
IE1, IE2, IE3, IE4 |
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Cooling |
IC411 |
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Protection |
IP44/IP54/IP55 |
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Housing |
Aluminum/Cast Iron |
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Wire |
100% copper |
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Color |
Blue, silver, or customization |
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Duty |
S1 |
Company Profile
Q1: Why are three-phase AC motors the most stable power source in industry?
A1: Because they have a purely mechanical structure, no electronic control system, no precision or easily damaged parts, and are directly driven by the power grid. They have extremely strong anti-interference capabilities and are not afraid of electromagnetic interference, voltage fluctuations, dust, or humidity in the workshop. Their long-term operational stability is far superior to that of variable frequency motors and DC motors.
Q2: What types of equipment are suitable for constant-speed AC motors?
A2: For equipment such as fans, pumps, conveyors, and mixers that do not require frequent speed adjustments and only need a constant speed, three-phase AC constant-speed motors offer better cost-effectiveness, lower failure rates, and less maintenance, making them the optimal solution for industrial applications.
Q3: Does the motor require additional protection in damp, open-air, or dusty workshops?
A3: This motor features an IP55 fully enclosed protective structure, making it suitable for direct use in normal dusty, rainy, and damp workshop environments without the need for an additional protective casing. For extreme conditions such as high corrosion, high moisture, and heavy dust, we can customize motors with reinforced sealing and anti-corrosion coatings to further improve environmental adaptability and prevent malfunctions due to moisture, dust accumulation, and corrosion.
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