Key Specifications

1. Electrical Parameters

• Rated Capacity: 15 kVA

• Input Voltage: 400 V AC (±15% operating range)

• Input Current: 37.5 A

• Output Voltage: 0-420 V AC (Continuously adjustable)

• Output Current: 35.7 A

• Frequency: 50 Hz

• THD: ≤3% (at rated load)

2. Regulation System

• Control Mechanism: Servo-Driven Carbon Brush Assembly

• Circuit Topology: Symmetrical Compensation + Reversed Polarity Regulation

• Linearity: <0.5% deviation across range

• Adjustment Speed: Configurable via servo controller

3. Operational Limits

• Full-Power Duty: 60 minutes at 100% voltage/current

• Continuous Rating: Not specified (recommend 80% derating for 24/7 operation)

4. Safety & Monitoring

• Protection System:
  ✓ Triple interlock (regulator/control table/secondary switch)
  ✓ Position limit switches with cut-off contacts

• Visual Indicators:
  ✓ Magnetic oil level gauge
  ✓ Brush position indicator

5. Mechanical Design

• Cooling: ONAN (Oil Natural Air Natural)

• Enclosure: Industrial-grade steel tank

• Weight: 85 kg (estimated based on 12kVA model)

Core Technology Highlights
✅ Symmetrical Compensation Circuit: Eliminates output waveform distortion during voltage transitions
✅ Linear Regulation Characteristic: Maintains <0.5% voltage deviation across 0-420V range
✅ Precision Servo Control: Programmable adjustment speed with position feedback
✅ Fail-Safe Operation: Triple interlocks prevent unsafe operating conditions
✅ Real-Time Monitoring: Oil level and brush position indicators for predictive maintenance