ALSTOM ALP121-S00

Description

Product Description:
The ALP121-S00 is a high-power traction motor from Alstom’s ALP121 series, designed for mainline locomotives and high-power EMUs. It delivers exceptional continuous power output for heavy-haul freight and high-speed passenger services. The S00 variant is the standard configuration with optimized efficiency and thermal performance.

Technical Specifications:

• Rated Power: 1,210 kW (continuous)
• Rated Voltage: 1,280 V AC (3-phase, 50/60 Hz)
• Rated Speed: 1,600 RPM (base), up to 4,200 RPM (max)
• Rated Current: Approximately 720 A (3-phase)
• Peak Power: 1,500 kW (for 10 minutes)
• Efficiency Class: IE4 (super premium)
• Insulation Class: Class H (180°C)
• Cooling Method: Forced air + water jacket (IC 416W)
• Weight: Approximately 4,100 kg
• Pole Count: 4 poles

Construction & Materials:

• Stator Frame: High-strength welded steel with water jacket channels
• Stator Windings: Copper, Class H insulated, triple VPI, Kapton-wrapped end turns
• Rotor: Forged aluminum cage with copper end rings (higher conductivity)
• Bearings: Dual SKF spherical roller bearings, oil-lubricated, rated 1.5 million km
• Housing: Cast iron with integrated water cooling jacket

Key Features:

• Triple VPI insulation for maximum winding reliability
• Water-cooled stator for sustained high-power operation
• Forged rotor end rings reduce I²R losses by 15%
• Integrated vibration sensors for condition monitoring
• Compatible with Alstom ONIX 3.0 traction control

Applicable Industries:

• Heavy-haul freight locomotives
• High-speed passenger locomotives (300+ km/h)
• Mainline EMUs
• Cross-border rail services

Installation Requirements:

• 8-point bogie mounting, M24 bolts, torque: 400 Nm
• Water cooling: flow rate 12 L/min, inlet 25°C ±3°C, pressure 2.5 bar
• Shaft alignment: ±0.03 mm TIR
• Ambient: -40°C to +55°C

Usage Notes:

• Water cooling system must be pressure-tested to 4 bar before commissioning
• Stator temperature sensor (PT100) must be calibrated annually
• Do not operate with water flow below 8 L/min (will trigger thermal protection)