100kVA ~ 150kVA Range
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
Parameter | Specification |
---|---|
Rated Capacity | 140KVA |
Input Voltage | 0.415kV (415V) |
Output Voltage | 0~0.42kV (0-420V adjustable) |
Output Current | 350A |
Frequency | 50Hz |
Waveform Distortion (THD) | ≤3% |
Cooling System | ONAN (Oil Natural Air Natural) |
Regulation Mode | Electrical Drive |
Continuous Operation | 60 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.