Key Features & Advantages
- High Starting Torque: Incorporates a dedicated start capacitor and a centrifugal switch (or potential relay). This provides significantly higher starting torque compared to permanent split capacitor (PSC) motors, enabling it to overcome initial inertia and start heavy loads effectively.
- High Running Efficiency & Power Factor: Utilizes a separate run capacitor that remains in the circuit during operation. This optimizes the motor’s power factor and efficiency during the run cycle, leading to lower operating costs, reduced current draw, and cooler running temperatures.
- Smooth & Quiet Operation: The dual-capacitor design contributes to smoother acceleration and quieter running performance, minimizing vibration and noise.
- Robust Construction & Protection: Built with high-quality materials, including laminated steel cores, copper windings, and durable bearings. Typically includes built-in thermal overload protection to prevent burnout from extended overloading or locked-rotor conditions.
- Wide Voltage Operation: DONGTAO motors in this series are designed with a wide voltage operating range (e.g., 160V-230V as per other series), ensuring stable performance in areas with fluctuating power supply.
Model Specifications (General Framework)
(Note: The provided product sample PDF focuses primarily on pumps. Specific model codes and a detailed parameter table for standalone motors are not listed in the extracted content. The following is a generalized specification framework based on industry-standard CSCR motors.)
A typical model number might follow a convention indicating power, speed, frame size, and design type (e.g., YD90S-2 1.5kW). Key specifications include:
- Power Rating: Ranging from fractional horsepower (e.g., 0.25 kW / 1/3 HP) to several kilowatts (e.g., 3.7 kW / 5 HP).
- Voltage & Frequency: Standard single-phase, 220-240V, 50Hz or 60Hz (specific to market).
- Speed: 2-pole (~2850/3450 RPM), 4-pole (~1425/1725 RPM) are common, depending on the required driven equipment speed.
- Capacitor Values: Specifies the microfarad (µF) ratings for both the start capacitor (higher value) and the run capacitor (lower value), along with their voltage ratings (e.g., 250VAC, 450VAC).
- Mounting: Standard foot-mounting (e.g., B3, B14) or flange-mounting (e.g., B5) configurations.
- Insulation Class: Typically Class B or F, indicating the thermal withstand capability.
- Protection Degree: Common enclosures like IP54 (splash proof) or IP55 (jet proof) for dust and moisture resistance.
- Duty Cycle: Usually designed for continuous duty (S1).
Applications
- Primary Application: The ideal power source for DONGTAO’s own range of single-phase water pumps (QD, QDX, WQD, GJ series etc.), especially those requiring high starting torque.
- Driving air compressors, refrigeration compressors, and conveyor systems.
- Powering agricultural equipment like feed mixers, grinders, and irrigation pumps.
- Operating industrial machinery such as drill presses, lathes, and large fans/blowers.
Why Choose DONGTAO Single Phase Dual Capacitor Motors?
- Perfect for Pump Drives: Specifically matched to the demands of pump applications, providing the necessary torque to start against pump head and efficient running for long-term water transfer.
- Energy Saving: The high running efficiency and power factor correction translate to lower electricity consumption over the motor’s lifespan.
- Reliable Starting: Eliminates starting issues with heavy loads, reducing stress on the motor and the driven equipment.
- Durability & Protection: Built to last with quality components and integrated thermal protection, ensuring long service life and reduced downtime.
- System Compatibility: Designed to seamlessly integrate with DONGTAO’s pump products, offering a complete, reliable fluid handling solution.
Contact Us for Motor Specifications & Selection
For the complete technical datasheet, detailed model list with specific power/speed ratings, capacitor specifications, and dimensional drawings for the Single Phase Dual Value Capacitor Motor Series, or for assistance in selecting the correct motor for your pump or application, please contact our sales or engineering team.
