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150kVA ~ 350kVA Range

LQDZ 350kVA |3.3kV Input | 0-6.3kV Adjustable Output |Manual Contact Voltage Regulator| Industrial Voltage Stabilizer

Technical specifications for LQDZ-350kVA contact regulator: 0~6.3kV output, 60Hz operation, servo motor control, 8-cycle short-circuit protection, and industrial applications.


  • US$ 22,929.00
  • Lead time: 60 days

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Product Details

Product Tags

LQDZ 350kVA |3.3kV Input | 0-6.3kV Adjustable Output |Manual Contact Voltage Regulator|   Industrial Voltage Stabilizer

Technical Specifications

ParameterSpecificationPerformance Advantage
Rated Capacity350kVAIndustrial-grade power handling
Input Voltage3.3kVMedium-voltage compatibility
Output Voltage Range0~6.3kVWide adjustable range
Frequency60HzNorth American standard
Output Current0~55.5APrecision current control
Waveform Distortion≤3%Clean power output
Impedance Voltage≤7% (linear 50-100% range)Stable load regulation

Advanced Engineering Features

Intelligent Voltage Adjustment

DC servo motor drive enables precision voltage tuning with programmable regulation speed

Symmetrical Compensation Circuit

Reversed polarity design ensures linear output voltage stability (±0.25%) under load fluctuations

Enhanced Protection System

  • Withstands 8 continuous short-circuit cycles

  • Magnetic oil level indicator

  • Protection contacts for overload safety

Robust Performance Capabilities

Overload Endurance

Load ConditionDuration
120% Rated Current60 minutes
140% Rated Current30 minutes
160% Rated Current5 minutes

Thermal Management

  • ONAN (Oil-Natural Air-Natural) cooling system

  • Certified 1-hour continuous operation at full load

  • Temperature-monitored windings

Control & Monitoring Systems

Integrated Feedback Mechanisms

  • Position indicator with terminal contacts

  • Servo motor driving device with precision encoders

  • Real-time voltage/current monitoring

Safety Interlocks

Three-way synchronization between voltage regulator, control table, and secondary switches prevents operational conflicts

"The impedance linearity between 50-100% adjustment range ensures consistent performance across industrial load variations."

Industrial Applications

Power Substations

Voltage stabilization for 3.3-6.6kV distribution networks

Industrial Manufacturing

Precision voltage control for heavy machinery and process equipment

Renewable Energy

Grid interface stabilization for solar/wind farms

Research Facilities

Controlled high-voltage supply for testing laboratories

Compliance & Standards

Engineered to meet international electrical standards:

  • IEC 60076 for power transformers

  • IEEE C57.15 for voltage regulators

  • ANSI C84.1 for voltage ratings

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