High-Power Voltage Conversion Technology

The LQDZ-400KVA contact-type voltage regulator delivers industrial-grade power conversion with precision control:

• Model: LQDZ-400KVA/0.4KV/0~3.3KV

• Voltage Transformation: Steps up 0.4kV input to adjustable 0-3.3kV output

• Current Handling: 1000A input / 121.2A output capacity

• Drive System: Servo motor-controlled voltage adjustment

Technical Specifications

Robust Performance & Safety

Short-Circuit Withstand

• 5× output current discharge for 5 cycles

• Zero mechanical distortion or winding damage

Thermal Performance

• Oil temperature rise: 55K at 440kVA (10 min)

• Winding temperature rise: 65K at 440kVA

• Rated operation: 60 minutes continuous

Integrated Control & Protection

• Magnetism oil surface indicator

• Position indicator with terminal contacts

• Protection contacts for emergency cutoff

• Servo motor driving device

• Protection resistance system

Industrial Applications

Power Distribution

• Substation voltage stabilization

• Grid-level power conversion

Manufacturing

• High-power equipment testing

• Industrial process control systems

Energy Sector

• Renewable energy integration

• Transformer compatibility testing

Compliance & Standards

Engineered to meet international electrical standards including:

• IEC 60270 Partial Discharge Measurement

• IEC 60076 Power Transformer Requirements

• Industrial-grade insulation for 3.3kV operation

Technical Support

Our engineering team provides:

• Installation supervision

• Load scenario simulations

• Thermal management guidance

• PD monitoring consultation