1000kW Variable Frequency Universal Induction Motor
Description
Technical Parameters
Brief Introduction
Engineered for grid instability, the YJTKK-500-4 universal induction motor mitigates voltage imbalance effects through advanced electromagnetic compensation. Its symmetric winding design restricts current imbalance to <120% of voltage deviation, preventing the excessive rotor losses typical under ±3% voltage asymmetry.
This universal induction motor employs temperature-regulated cooling to maintain thermal equilibrium even with 10% elevated copper losses from negative-sequence currents. Critical torque stability is achieved via harmonic suppression coils, reducing speed fluctuations to ≤0.5% at full load during voltage unbalance. The rotor cage geometry counters reverse-rotating fields-primary sources of electromagnetic noise and vibration-yielding <2.8mm/s vibration amplitudes under 5% voltage deviation. Validation tests confirm:
Torque dip limited to 15% during single-phase voltage drop simulations
Acoustic noise ≤68 dB(A) under 4% continuous imbalance
Insulation lifespan preserved via hotspot monitoring (Class F margins)
Unlike standard units suffering derating, this universal induction motor sustains rated output with 5% sustained voltage asymmetry, making it ideal for weak grids or phase-sensitive industrial plants. Proactive phase monitoring terminals enable external protection integration, while rigid frame construction dampens mechanically amplified oscillations.
Main Technical Parameters
| Product Name: | YJTKK-500-4 Variable Frequency HV Motor |
|
Frame: |
H500 |
|
Power Scope: |
1000-1400kW |
|
Voltage: |
3000V, 3300V, 4160V, 6000V, 6600V, 10000V, 11000V |
|
Frequency: |
5~70Hz, 3~50 Hz |
|
Number of Poles: |
2P, 4P, 6P, 8P, 10P, 12P, 16P |
|
Speed |
3000rpm, 1500rpm, 1000rpm, 750rpm, 600rpm, 500rpm, 370rpm |
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Cooling Mechod |
IC616, IC666 |
|
Protection Grade |
IP54, IP55 |
|
Insulation Class |
F(155℃), H(180℃) |
|
Duty: |
S1, S4, S5, S6, S9 |
|
Mounting Type |
B3/V1 |
Production Details
Frame
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Box structure frame, easy for maintaining and installation
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Flexible for special installation dimensions
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Customizable outlook and dimensions
Stator
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99.9% pure copper winding for stator to ensure the output power and efficiency
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Excellent insulation system with 5 more processing flows
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All the winding are fitted in by handwork to ensure all slots are full and avoid any possible winding flaw.
Rotor
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Aluminum casting rotor with high quality silicon steel rotor core to assure induction efficiency
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Copper bar rotor is available for YKK motor
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Well and precisely machined shafts with good capacity of strength and toughness
Testing
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All motors must pass the piece testing before painting and packaging
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Type tests will be regularly performed for each series, more often for new developed series and variants.
Package and delivery
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All motors will be packaged well before delivery
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Plastic cover inside, vacuum tin foil outer and then solid wood box
Applications
Heavy machine
Mining
Power station
Steel
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