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General Characteristics:
The Linz Electric E1X13M E/4 is a three-phase, 4-pole brushless synchronous alternator designed for professional generator systems. It operates on a self-excited AVR control system (models HVR11 or HVR30) ensuring ±1% voltage regulation. The alternator provides high performance and reliability under continuous operation and is compliant with EN60034-1, ISO 8528-3, and EN55011 standards.
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Electrical Specifications:
• Rated Power: 14.0 kVA (50 Hz) / 17.0 kVA (60 Hz)
• Rated Power Factor: 0.8
• Rated Voltage (Star Connection): 380–480 V
• Frequency: 50 Hz / 60 Hz
• Efficiency (Class H): up to 86% at full load
• Total Harmonic Distortion (THD): <3% at full and no load
• Voltage Regulation Accuracy: ±1%
• Sustained Short-Circuit Capability: >300% of rated current
• Overload Capacity: 110% of rated power for one hour every six hours
• Air Flow Requirement: 4.0 m³/min (50 Hz) / 4.7 m³/min (60 Hz)
• RFI Suppression: Standard EN55011
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Winding and Excitation System:
• Type: Double-layer stator winding with auxiliary winding
• Rotor: Damped rotor with cage construction
• Winding Pitch: 2/3
• Number of Stator Leads: 12
• Stator Winding Resistance: 0.69 Ω at 20°C
• Rotor Winding Resistance: 9.46 Ω at 20°C
• Exciter Stator Resistance: 16.5 Ω at 20°C
• Exciter Rotor Resistance: 2.15 Ω at 20°C
• Excitation Current: 0.57 A (no load) / 1.63 A (full load)
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Reactances and Time Constants (50 Hz):
• Xd (Direct Axis Synchronous): 268%
• X’d (Transient): 21.1%
• X’’d (Subtransient): 8.1%
• Xq (Quadrature Axis): 150%
• T’do (Open Circuit Field Time Constant): 394 ms
• T’d (Transient Time Constant): 31 ms
• T’’d (Subtransient Time Constant): 6 ms
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Mechanical Specifications:
• Frame Forms: B2, B3/B14, B3/B9
• Weight: 96 kg (B2) / 91.9 kg (B3/B14)
• Moment of Inertia: 0.088 kg·m² (B2) / 0.091 kg·m² (SAE 7½)
• Bearings: Drive End – 6208-2Z-C3 / Non-Drive End – 6305-2Z-C3
• Maximum Overspeed: 2250 rpm
• Cooling Method: Self-ventilated air cooling
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Performance and Efficiency:
• Efficiency: 79% at 25% load, 83.8% at 50% load, 86% at 75% load, and 86% at full load
• Voltage Dip under Transient Load: <25%, recovery within 0.5 seconds
• Stable voltage and frequency across variable loads and ambient temperatures
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Environmental and Operational Conditions:
• Ambient Temperature: 40°C
• Altitude Derating: Begins above 1000 m
• Insulation Class: H (125°C rise)
• Protection Degree: IP21
• Noise and Vibration: In compliance with EN mechanical balance standards
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Certifications and Compliance:
• Standards: EN60034-1, ISO 8528-3, EN55011
• Optional Certifications: UL 1446, CSA-C22.2 No.100, UL1004-1, UL1004-4
