Extract the specifications from the motor nameplate and list its operating specifications at 50 Hz and 60 Hz.

Here are the specifications extracted from the motor nameplate:

• Manufacturer: Seipee
• Type: GM 280S 2 B3
• Serial Number (N°): SU09244603
• Motor Type: 3~ (Three-phase)
• Weight: 570 kg
• Insulation Class (I.CL.): F
• Ingress Protection (IP): 55
• Duty Cycle (S): S1 (Continuous duty)
• Year of Manufacture: 2024
• Efficiency Class (Eff.): IE4
• Standard: IEC 60034-1

Operating Specifications (50 Hz):

• Voltage (V): 400/690 V
• Frequency (Hz): 50 Hz
• Current (A): 128 A (at 400 V) / 74 A (at 690 V)
• Rated Power (kW): 75 kW
• Speed (min⁻¹): 2980 rpm
• Power Factor (cos φ): 0.90
• Efficiency:
  • 100% Load: 95.6%
  • 75% Load: 95.0%
  • 50% Load: 94.0%

Operating Specifications (60 Hz):

• Voltage (V): 460 V
• Frequency (Hz): 60 Hz
• Current (A): 120 A
• Rated Power (kW): 90.3 kW
• Speed (min⁻¹): 3575 rpm
• Power Factor (cos φ): 0.89
• Efficiency:
  • 100% Load: 95.4%
  • 75% Load: 95.0%
  • 50% Load: 94.0%