150kVA ~ 350kVA Range
LQDZ 250kVA |380V Input | 0-650V Adjustable Output |Manual Contact Voltage Regulator| Industrial Voltage Stabilizer
Technical Specifications
Parameter | Specification |
---|---|
Model | LQDZ-250kVA |
Phase & Frequency | Single Phase, 50Hz |
Rated Capacity | 250kVA |
Input Voltage | 0.38kV |
Output Voltage Range | 0~0.65kV (650V) |
Rated Input Current | 657.9A |
Rated Output Current | 384.6A |
Waveform Distortion | ≤3% |
Starting Voltage | ≤1.5% |
Dimensions (L×W×H) | 1450 × 1050 × 1680 mm |
Weight | <1200 kg |
Advanced Engineering Features
Precision Voltage Control
DC servo motor drive with symmetrical compensation and reversed polarity circuitry ensures linear output from 0-650V (±0.2% accuracy).
Robust Protection Systems
5-cycle short-circuit resistance: Continuous discharge protection without winding damage
Triple interlock system: Voltage regulator, control table, and secondary switch integration
Monitoring Systems
Magnetic oil surface indicator
Position indicator with terminal contacts
Programmable regulation speed control
Performance & Thermal Management
Operational Endurance
100% load: 60 minutes continuous operation
66.7% load: Unlimited operation at 2/3 rated voltage/current
Thermal Specifications
Reactor winding: ≤65K temperature rise
Oil surface: ≤55K temperature rise
External surface: ≤30K temperature rise
Cooling System
ONAN (Oil Natural Air Natural) cooling ensures optimal thermal management in industrial environments.
Industrial Applications
Industry | Application | Performance Benefit |
---|---|---|
Industrial Manufacturing | Heavy machinery power supply | 0-650V range covers diverse equipment needs |
Energy Sector | Substation voltage stabilization | Withstands 5-cycle short circuits |
Laboratory Testing | High-voltage equipment validation | ≤3% waveform distortion for precision |
Renewable Energy | Solar farm voltage regulation | DC motor control adapts to fluctuating inputs |
Technical Advantages
Wide voltage range: 0-650V output covers specialized industrial requirements
Compact footprint: 1.45×1.05×1.68m design saves installation space
Low maintenance: Robust construction with <1200kg weight for easy installation
Instant response: ≤1.5% starting voltage enables rapid system initiation
"The reversed polarity voltage circuit eliminates transition dead zones, making the LQDZ series ideal for sensitive industrial processes requiring smooth voltage transitions."– Power Systems Engineering Review