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100kVA ~ 150kVA Range

LQDZ 140kVA |415V Input | 0-420V Adjustable Output |Manual Contact Voltage Regulator| Industrial Voltage Stabilizer

Industrial-grade LQDZ-140KVA contact voltage regulator: 0.415kV input, 0-420V adjustable output. Features ≤3% THD, servo motor control, and symmetrical compensation for linear voltage regulation.


  • US$ 10,380.00
  • Lead time: 60 days

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Product Details

Product Tags

LQDZ 140kVA |415V Input | 0-420V Adjustable Output |Manual Contact Voltage Regulator|   Industrial Voltage Stabilizer

Precision voltage control system with 0-420V continuously adjustable output for industrial power applications requiring stable linear voltage regulation.

Technical Specifications

ParameterSpecification
Rated Capacity140KVA
Input Voltage0.415kV (415V)
Output Voltage0~0.42kV (0-420V adjustable)
Output Current350A
Frequency50Hz
Waveform Distortion (THD)≤3%
Cooling SystemONAN (Oil Natural Air Natural)
Regulation ModeElectrical Drive
Continuous Operation60 minutes at 100% rated load

Advanced Control Features

Symmetrical Compensation Circuit

Reversed polarity voltage regulation ensures linear output voltage with minimal deviation

Precision Servo Control

Motor-driven adjustment with configurable regulation speed for smooth voltage transitions

Multi-stage Monitoring

Magnetic oil level indicator with protection contacts for safe operation

Position Feedback System

Terminal contacts provide real-time voltage position indication

Safety & Protection Systems

  • Integrated Interlock Protection: Safety linkage between regulator, control table, and secondary switches

  • Thermal Management: ONAN cooling maintains optimal operating temperatures

  • Voltage Limiting: Automatic upper/lower voltage boundary protection

  • Failsafe Operation: Protection contacts trigger shutdown during abnormal conditions

Performance Characteristics

Voltage Linearity                    95%+ consistency across range

Waveform Purity                    ≤3% THD

Cooling Efficiency                    ONAN system maintains safe temps at full load

Industrial Applications

  • Power transformer testing facilities

  • High-voltage research laboratories

  • Industrial process voltage stabilization

  • Electrical equipment validation

  • Manufacturing power quality control

  • Critical infrastructure voltage regulation

Compliance & Standards

Designed to meet global electrical safety requirements:

IEC 60076

EN 60204

CE

RoHS

Important: For operation by qualified personnel only. Requires periodic oil testing and contact inspection.

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