ALSTOM ALE111-S50

Description

Technical Specifications:

• Rated Power: 111 kW (continuous), 165 kW (peak, 30 seconds)
• Rated Voltage: 750 V AC (3-phase) or 1,500 V DC
• Rated Speed: 1,400 RPM (base), up to 3,200 RPM (max)
• Rated Current: Approximately 160 A (at 750V AC)
• Starting Torque: 280 Nm (at rated voltage)
• Efficiency Class: IE3
• Insulation Class: Class H (180°C) — upgraded from S01
• Cooling Method: Forced air ventilation (IC 416) — upgraded from S01
• Weight: Approximately 920 kg
• Pole Count: 4 poles

Construction & Materials:

• Stator Frame: Welded steel (upgraded from cast iron for better heat dissipation)
• Stator Windings: Copper, Class H insulated, double VPI treatment
• Rotor: Reinforced aluminum die-cast cage with skewed bars (reduces torque ripple)
• Bearings: FAG sealed tapered roller bearings (higher axial load capacity)
• Housing: Aluminum alloy with thermal fins

Key Features:

• 25% higher starting torque vs. S01 variant
• Class H insulation allows 25°C higher operating temperature
• Forced air cooling extends continuous duty cycle
• Skewed rotor bars reduce acoustic noise by 3 dB
• Designed for 30‰ gradient operations

Applicable Industries:

• Heavy-load commuter EMUs
• Regional trains with steep gradients
• Freight-capable EMUs
• Mountain railway systems

Installation Requirements:

• Same mounting pattern as S01 (4x M20 bolts)
• Forced air duct must be connected to bogie air supply (min 150 L/min)
• Ambient: -30°C to +50°C
• Verify air flow direction before energizing

Usage Notes:

• Do not block forced air intake/exhaust vents
• Bearing inspection every 400,000 km (vs. 800,000 km for S01)
• Peak torque operation limited to 30 seconds, 5 times per hour maximum