150kVA ~ 350kVA Range
LQDZ 300kVA |400V Input | 0-600V Adjustable Output |Manual Contact Voltage Regulator| Industrial Voltage Stabilizer
Precision Voltage Control for Critical Power Applications
Technical Specifications
Parameter | Value | Standard |
---|---|---|
Model | LQDZ-300kVA/0.4kV/0~0.6kV | Contact Type |
Rated Capacity | 300 kVA | IEC 60076 |
Input Voltage | 0.4 kV | Single Phase |
Output Voltage Range | 0 - 0.6 kV Adjustable | Linear Regulation |
Output Current | 500 A | Continuous Duty |
Waveform Distortion | ≤3% THD | IEC 61000-3-2 |
Impedance Voltage | 7.5% (50-100% linear adjustment) | IEC 60076-1 |
Short-Circuit Endurance | 8 Cycles (No Winding Damage) | IEC 60529 |
Cooling System | ONAN (Oil Natural Air Natural) | IEC 60076-14 |
Advanced Voltage Regulation Technology
Innovative Circuit Design: Symmetrical compensation with reversed polarity regulation ensures linear output voltage and ultra-stable performance.
Electrical Drive Adjustment: DC servo motor enables precise voltage control with programmable regulation speed
Zero-Voltage Start: ≤1.5% starting voltage minimizes inrush currents
Real-Time Monitoring: Magnetic oil level indicator and position feedback system
Protection Systems: Terminal contacts and safety interlocks prevent operational hazards
Industrial Applications
Manufacturing Systems
Precision voltage supply for CNC machines, industrial lasers, and PLC-controlled production lines
Power Quality Management
Voltage stabilization in grid-tied systems with fluctuating input voltages
Test & Measurement
High-current testing of electrical components (cables, breakers, transformers)
Safety & Reliability Features
Interlock Protection: Synchronized shutdown with control tables and secondary switches
Thermal Management: ONAN cooling maintains optimal operating temperature during 1-hour continuous operation cycles
Short-Circuit Resistant: Withstands 8 discharge cycles without damage
Fail-Safe Design: Protection contacts trigger automatic shutdown during anomalies
Operational Advantages
Linear impedance adjustment (50-100% range) for consistent performance
Programmable regulation speed with servo motor precision
±0.5% voltage stability under load variations
Low-maintenance design with accessible monitoring points