High-Current Voltage Regulation Technology

The LQGZ-450KVA contact-type voltage regulator delivers precision voltage control for demanding industrial applications:

• Model: LQGZ-450KVA/0.4KV/0~0.42KV

• Symmetrical Compensation Circuit: Ensures linear output voltage characteristics

• Reversed Polarity Regulation: Maintains waveform stability (≤3% aberration)

• High-Current Capacity: 1125A input / 1071.4A output rating

Technical Specifications

Performance & Protection Features

Control System

• Electrical drive regulation

• Servo motor driving device

• Adjustable regulation speed

Monitoring & Safety

• Magnetism oil surface indicator

• Position indicator with contacts

• Terminal and protection contacts

Interlock System

• Voltage regulator-control table interlock

• Secondary switch integration

• Fault prevention mechanisms

Thermal Management

• ONAN cooling (Oil Natural Air Natural)

• Rated operation: 60 minutes continuous

• Optimal thermal performance

Physical Specifications

Dimensions: 1000mm (W) × 800mm (D) × 1750mm (H)

               Weight: 800 kg (0.8 tons)

The compact footprint enables flexible installation in space-constrained environments while maintaining robust performance.

Industrial Applications

Manufacturing Plants

• High-current machinery power control

• Production line voltage stabilization

Power Distribution

• Substation voltage regulation

• Industrial facility power management

Heavy Industry

• Foundry and smelting operations

• Large motor control systems

Compliance & Standards

Engineered to meet international electrical standards:

• IEC 60076 Power Transformer Requirements

• Industrial-grade insulation for 0.42kV operation

• Electromagnetic compatibility (EMC) standards

Technical Support

Our engineering services include:

• Installation supervision and commissioning

• Load scenario analysis and optimization

• Preventive maintenance programs

• 24/7 technical support hotline