High-Precision Motor-Generator (MG) Set

Hydrostatic Bearing Technology | Zero-Leakage Design | PLC-Controlled Lubrication

Core System Components

Advanced Hydrostatic Bearing System

✅ Zero-Leakage Sealing

• Hermetically sealed bearing housings

• Labyrinth seals + magnetic encoders
  ✅ Intelligent Oil Management

• High-Pressure Jacking Oil Pump:

• Auto-starts with MG set rotation

• Maintains 80–120 bar oil film during operation

• Auxiliary Oil Tank:

• Provides cooling during coast-down (0 rpm)

• 30-minute reserve capacity
  ✅ Real-Time Monitoring

• Flow sensors & pressure transmitters on all bearings

• Oil temp/viscosity displayed on HMI

• PLC triggers shutdown on abnormal conditions

Control & Monitoring Features

Technical Specifications

Operational Workflow

1. Startup Sequence

• Jacking oil pump engages → forms 100µm oil film

• Motor accelerates to 10% RPM → main lube system activates

• Generator excitation applied at 95% sync speed

2. Normal Operation

• Continuous oil pressure/flow monitoring

• HMI displays real-time bearing health metrics

3. Shutdown & Coast-Down

• Jacking oil maintains film during deceleration

• Auxiliary tank cools bearings until 0 RPM

• PLC logs coast-down time & temperature curve

Competitive Advantages