High-Voltage Regulation Technology

The LQDGZ-500kVA contact-type voltage regulator delivers industrial-grade high-voltage control with advanced engineering:

• Model: LQDGZ-500kVA/10kV/0~10.5kV

• Symmetrical Compensation Circuit: Ensures linear output voltage characteristics

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

• Precision Control: ±1% regulation accuracy with DC motor drive

Technical Specifications

Performance & Protection Systems

Overload Capability

• 120% rated current: 60 minutes

• 140% rated current: 30 minutes

• 160% rated current: 5 minutes

Control System

• Electrical drive regulation

• Single-phase DC motor

• Adjustable regulation speed

Monitoring & Safety

• Magnetism oil surface indicator

• Position indicator with contacts

• Terminal and protection contacts

Thermal Management

• ONAN cooling (Oil Natural Air Natural)

• Continuous operation: 60 minutes

• Optimal thermal performance

Advanced Engineering Features

Interlock Safety System

Integrated protection between voltage regulator, control table, and secondary switch prevents operational faults and ensures:

• Automatic fault prevention during abnormal conditions

• Seamless transition between control systems

• Emergency shutdown capabilities

Voltage Regulation Technology

The symmetrical compensation and reversed polarity circuit ensures:

• Smooth voltage transitions with minimal ripple

• Linear output voltage throughout the range

• Programmable regulation speed with high stability

• Consistent performance under varying load conditions

Industrial Applications

Power Transmission

• High-voltage substation control

• Grid voltage stabilization

• Transformer testing facilities

Manufacturing

• High-voltage equipment testing

• Industrial process power systems

• Quality assurance laboratories

Research & Development

• High-voltage material testing

• Dielectric strength research

• Prototype validation facilities

Technical Advantages

Precision Control

±1% regulation accuracy across the full voltage range with programmable adjustment speed

Robust Construction

Industrial-grade components designed for high-voltage environments up to 10.5kV

Safety Compliance

Meets international standards including IEC 60270 and IEC 60076 for high-voltage equipment

Operational Reliability

Proven performance in demanding industrial environments with 60-minute continuous operation

Technical Support & Services

• Installation Supervision: On-site commissioning by certified engineers

• Performance Validation: Load testing and regulation accuracy verification

• Maintenance Programs: Scheduled inspection and calibration services

• 24/7 Support: Technical assistance hotline for operational issues

• Training: Operator certification programs for safe handling