Product Details

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
Cooling Mechod	IC616, IC666
Protection Grade	IP54, IP55
Insulation Class	F(155℃), H(180℃)
Duty:	S1, S4, S5, S6, S9
Mounting Type	B3/V1