150kVA ~ 350kVA Range
LQDZ 300kVA |380V Input | 0-3.15kV Adjustable Output |Manual Contact Voltage Regulator| Industrial Voltage Stabilizer
Precision 0-3.15kV Output for Industrial Testing & Power Systems
Technical Specifications
Parameter | Specification | Standard |
---|---|---|
Model | LQCZ-300kVA/0.38kV/0~3.15kV | Cylinder Type |
Rated Capacity | 300 kVA | IEC 60076 |
Input Voltage | 0.38 kV AC | Single Phase |
Output Voltage Range | 0 - 3.15 kV Continuously Adjustable | Linear Regulation |
Output Current Range | 0 - 95.2 A | Constant Power |
Input Current | 789.5 A | 50 Hz |
Impedance Voltage | 7.5% (50-100% Linear Adjustment) | IEC 60076-1 |
Waveform Distortion | ≤3% THD | IEC 61000-3-2 |
Starting Voltage | ≤0.5% | IEC 60034-12 |
Noise Level | ≤60 dB(A) | ISO 9614 |
Short-Circuit Endurance | 200% Overcurrent for 8 Cycles (No Damage) | IEC 60529 |
Advanced Voltage Regulation Technology
Cylinder Design Advantage: Optimized magnetic flux distribution ensures stable voltage output with minimal waveform distortion across the full 0-3.15kV range.
Electrical Drive Regulation System
Precision servo-motor control for smooth voltage transitions
Programmable regulation speed with position feedback
Upper/lower voltage limit protection
Thermal Management & Structure
ONAN Cooling: Oil Natural Air Natural circulation system
60-minute continuous operation at 100% rated capacity
Integrated oil drain valve and magnetic level indicator
Low-noise design (≤60dB) for laboratory environments
Industrial Applications
High-Voltage Testing
Dielectric strength validation of transformers, cables, and switchgear up to 3.15kV
Research Laboratories
Precision voltage supply for material testing and electrical research
Power Quality Simulation
Voltage fluctuation testing of protective relays and metering systems
Safety & Protection Systems
Short-Circuit Proof: Withstands 200% overcurrent for 8 AC cycles without damage
Automatic Discharge: Built-in protective resistors for safe discharge
Structural Integrity: Reinforced windings prevent mechanical distortion during faults
Thermal Monitoring: Oil temperature sensors prevent overheating
Safety Certification: Compliant with IEC 61010-1 safety requirements for high-voltage equipment.
Performance Characteristics
Linear voltage adjustment from 0-3150V with constant power output
Rapid response time: ≤100ms voltage stabilization
±1% voltage accuracy under load variations
Low starting voltage (≤0.5%) prevents inrush currents