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Energy-Saving Permanent Magnet Synchronous Motor for Water Pumps & Vacuum Systems (300kW-700kW)
◇ High efficiency (>95%), high power density, low maintenance. ◇ Requires a matched drive controller and cannot start directly from line frequency.
Classification:
Working Principle of Permanent Magnet Synchronous Motor (PMSM)
The Permanent Magnet Synchronous Motor (PMSM) converts electrical energy into mechanical energy through electromagnetic interaction. Its core working principle is as follows:
Magnetic Field Generation
◇ Stator: When three-phase AC current flows through the stator windings, it generates a rotating magnetic field (speed determined by the power supply frequency).
◇ Rotor: Equipped with permanent magnets (e.g., neodymium iron boron), creating a fixed magnetic field.
Synchronous Rotation
◇ The stator’s rotating magnetic field "pulls" the rotor’s permanent magnetic field, forcing the rotor to rotate at the same speed (synchronous speed) without slip.
Torque Generation
◇ The angle (load angle) between the stator’s magnetic field and the rotor’s permanent magnetic field produces electromagnetic torque, driving the load.
◇ By adjusting the current phase (vector control), torque output efficiency can be optimized.
Key Features
◇ High efficiency (>95%), high power density, low maintenance.
◇ Requires a matched drive controller and cannot start directly from line frequency.
| Product | Product Category | Voltage | Power Range | Product Application |
| Permanent Magnet Synchronous Motor 600-3000RPM |
Explosion-proof | 380/415V/460V | 11KW-315KW,355KW-710KW | Oil & gas extraction (drilling rigs, oil pumps, compressors) Refineries (reactor agitators, centrifugal pumps) Chemical plants (flammable liquid transfer, gas compression) Underground ventilation fans, conveyor belt drives Coal dust transport equipment, drainage pumps Alcohol extraction workshops, spray drying towers Flour/sugar powder conveying systems, edible oil pressing equipment |
| 660V | 11KW-315KW,355KW-710KW | |||
| 1140V | 11KW-315KW,355KW-1600KW | |||
| 3300V | 200KW-1600KW | |||
| 6000V | 200KW-1600KW | |||
| 10000V | 200KW-1600KW | |||
| Non-explosion proof | 380/415V/460V | 11KW-315KW,355KW-710KW | For textile/engineering vehicles/belt machine tightening/ air cooling island/flotation machine/separator/mixer/grinding machine/ball mill etc |
|
| 660V | 11KW-315KW,355KW-710KW | |||
| 1140V | 11KW-315KW,355KW-3000KW | |||
| 3300V | 200KW-3000KW | |||
| 6000V | 200KW-3000KW | |||
| 10000V | 200KW-3000KW |
Technical Specifications
Other voltages customizable, up to 10KV
| Frame | Pole | Installation dimensions | Outline size | |||||||||||
| A | B | 0 | D | E | F | G | H | K | AB | AD | HD | L | ||
| 355 | 4~10 | 630 | 800 | 224 | 110 | 210 | 28 | 100 | 355 | 35 | 760 | 760 | 1130 | 1950 |
| 400 | 4-10 | 710 | 900 | 224 | 120 | 210 | 32 | 109 | 400 | 35 | 840 | 900 | 1260 | 2180 |
| 450 | 4~10 | 800 | 1000 | 250 | 130 | 210 | 32 | 119 | 450 | 42 | 990 | 940 | 1380 | 2250 |
| Model | Rated Power (kW) |
Rated Voltge A |
Rated Current A |
Syncvonous apeed (r/min) |
Raled Torque (N.m) |
Rated Emcency (%) |
Rated Power Fador |
Pull in torque mulipler |
Pul-out torque mutpler |
Locked-rotor torgue mutpller |
Locked-rotor current multipher |
| JXSS-355-4-355-380 | 355 | 380 | 580.4 | 1500 | 2259.9 | 96.8 | 0.96 | 12 | 1.6 | 17 | 9.5 |
| JKSS-400-4-355-380 | 400 | 380 | 654 | 1500 | 2546.4 | 96.8 | 0.96 | 1.2 | 1.6 | 17 | 9.5 |
| JKSS-450-4-355-380 | 450 | 380 | 735.8 | 1500 | 2854.7 | 96.8 | 0.96 | 12 | 1.6 | 17 | 9.5 |
| JKSS-500-4-400-380 | 500 | 380 | 817.5 | 1500 | 3183.0 | 96.8 | 0.96 | 1.2 | 1.6 | 1.7 | 9.5 |
| JXSS-560-4-400-380 | 560 | 660 | 527.2 | 1500 | 3565.0 | 96.8 | 0.96 | 1.2 | 1.6 | 1.7 | 9.5 |
| JXSS-630-4-400-380 | 630 | 660 | 593.1 | 1500 | 4010.6 | 968 | 0.96 | 12 | 1.6 | 1.7 | 9.5 |
| JXSS-710-4-450-380 | 710 | 660 | 668.4 | 1500 | 4519.9 | 968 | 0.96 | 12 | 1.6 | 1.7 | 9.5 |
| JXSS-800-4-450-380 | 800 | 660 | 753.1 | 1500 | 5092.8 | 968 | 0.96 | 12 | 1.6 | 1.7 | 9.5 |
| JXSS-900-4-450-380 | 900 | 660 | 847.2 | 1500 | 5729.4 | 968 | 0.96 | 1.2 | 1.6 | 1.7 | 9.5 |
| JXSS-280-6-355-380 | 280 | 380 | 459.7 | 1000 | 2673.7 | 96.4 | 0.96 | 1.2 | 1.6 | 19 | 9.5 |
| JXSS-315-6-355-380 | 315 | 380 | 517.2 | 1000 | 3007.9 | 96.4 | 0.96 | 1.2 | 1.6 | 19 | 95 |
| JXSS-355-6-355-380 | 355 | 380 | 582.8 | 1000 | 3389.9 | 96.4 | 0.96 | 12 | 1.6 | 19 | 9.5 |
| JXSS-400-6-400-380 | 400 | 380 | 656.7 | 1000 | 3819.6 | 96.4 | 0.96 | 12 | 1.6 | 19 | 9.5 |
| JXSS-450-6-400-380 | 450 | 380 | 738.8 | 1000 | 4297.1 | 96.4 | 0.96 | 12 | 1.6 | 19 | 9.5 |
| JXSS-500-6-400-380 | 500 | 380 | 820.9 | 1000 | 4774.5 | 96.4 | 0.96 | 12 | 1.6 | 1.9 | 9.5 |
| JXSS-560-6-450-380 | 560 | 660 | 529.4 | 1000 | 5347.4 | 96.4 | 0.96 | 1.2 | 1.6 | 1.9 | 9.5 |
| JX5S-630-6-450-380 | 630 | 660 | 595.5 | 1000 | 6015.9 | 96.4 | 0.96 | 1.2 | 1.6 | 19 | 9.5 |
| JXSS-710-6-450-380 | 710 | 660 | 671.1 | 1000 | 6779.8 | 96.4 | 0.96 | 1.2 | 1.6 | 19 | 9.5 |
| JXS5-220-8-355-380 | 220 | 380 | 363.5 | 750 | 2801.0 | 95.8 | 0.96 | 12 | 1.6 | 1.8 | 9.5 |
| JXSS-250-8-355-380 | 250 | 380 | 413 | 750 | 3183.0 | 95.8 | 0.96 | 12 | 1.6 | 1.8 | 9.5 |
| JXSS-280-8-355-380 | 280 | 380 | 462.6 | 750 | 3565.0 | 95.8 | 0.96 | 12 | 1.6 | 18 | 9.5 |
| JXSS-315-8-400-380 | 315 | 380 | 520.4 | 750 | 4010.6 | 95.8 | 0.96 | 12 | 1.6 | 18 | 9.5 |
Advantages of Permanent Magnet Synchronous Motor (PMSM)
High Efficiency & Energy Savings
◇ Achieves IE4/IE5 efficiency levels (up to 98%) due to zero rotor losses
◇ 15-30% lower energy consumption compared to induction motors
◇ Maintains high efficiency even at partial loads
Precision Performance
◇ Excellent speed stability (±0.1% speed regulation)
◇ Fast dynamic response with vector control capability
◇ Smooth torque production with minimal cogging
Low Maintenance & Long Life
◇ No brushes/slip rings (brushless design)
◇ Reduced wear with fewer moving parts
◇ Permanent magnets retain properties for decades
Smart Control Compatibility
◇ Seamless integration with modern drives and IoT systems
◇ Enables predictive maintenance through embedded sensors
◇ Adaptable to Industry 4.0 automation networks
Typical Pump Applications
| Centrifugal Pumps Applications: ◇ Municipal water supply ◇ Industrial circulating water systems ◇ HVAC systems (chilled/cooling water pumps) PMSM Advantages: ◇ IE5 ultra-high efficiency (>96%), significantly reducing long-term power consumption ◇ Pulsation-free flow, protecting pipeline systems ◇ Supports variable-frequency constant-pressure water supply, preventing water hammer effects Submersible Pumps Applications: ◇ Deep well water extraction ◇ Mine drainage ◇ Flood control and drainage PMSM Advantages: ◇ Fully sealed design (IP68), ensuring reliable underwater operation ◇ Corrosion-resistant materials (stainless steel/ceramic sleeves), suitable for acidic/alkaline water conditions ◇ Low-speed, high-flow design, reducing cavitation risks Multistage High-Pressure Pumps Applications: ◇ Boiler feed pumps ◇ Oil pipeline pressure boosting ◇ Seawater desalination PMSM Advantages: ◇ High-pressure output (up to 1000m head) ◇ Modular design, facilitating maintenance ◇ Precise pressure control (±0.1MPa) |
 |
FAQ
Q: How does PMSM maintain performance in high-temperature environments?
Answer:Solutions:
◇ Uses high-temperature grade magnets (e.g., SH/UH grade NdFeB, rated for 180-200°C)
◇ Built-in temperature sensors + smart derating protection (auto-adjusts output if overheated)
Cooling system optimization:
◇ Low power: Forced air cooling (IC416)
◇ High power: Water jacket (IC6W7) or oil cooling
Q: How to mitigate harmonic interference in PMSMs?
Answer:Countermeasures:
◇ Drive side: Install input/output reactors
◇ Motor side: Sinusoidal winding design to reduce cogging harmonics
◇ System level: Deploy active power filters (APF) (THD <5%)
Q:Why are PMSMs ideal for servo applications?
Answer:Key advantages:
◇ Full torque at zero speed (can hold position without encoder, using magnetic sensing)
◇ 3-5x faster dynamic response vs. induction motors (acceleration up to 1000 rad/s²)
◇ Supports 23-bit high-resolution encoders (positioning accuracy ±0.01mm)
Q:How to diagnose PMSM demagnetization?
Answer:Methods:
1.Current analysis: >15% no-load current increase indicates possible demagnetization
2.Back-EMF test: Measure voltage drop during manual rotation (power off)
3.Thermal imaging: Localized hot spots on magnets
Q:Transportation & installation precautions for large PMSMs (>1MW)Answer:Critical steps:
◇ Lock rotor during transport (prevents magnetic attraction to metal debris)
◇ Mounting surface flatness ≤0.05mm/m²
◇ Mandatory magnetic pole identification before first startup (avoids drive initialization failure)
Keyword:
High Efficiency & Energy Savings
Precision Performance
Low Maintenance & Long Life
Smart Control Compatibility
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Keywords:Permanent Magnet Direct Drive Pulley | Permanent Magnet Synchronous Motor | Permanent Magnet Direct Drive Motor
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