LQDZ Series 15kVA Contact-Type Voltage Regulator (Single Phase)

Precision Voltage Control for High-Power Testing Applications

Engineered for demanding high-voltage measurement systems, the LQDZ-15kVA contact voltage regulator delivers stable 0-420V AC output from 380V input with ≤3% THD. Certified for dielectric testing, transformer commissioning, and laboratory applications requiring precise voltage regulation under IEC 61010-1 safety standards.

⚠️ Safety Compliance Notice

WARNING: This equipment operates at lethal voltages. Always use CAT IV-rated PPE and implement lockout/tagout procedures before installation. Verify dead-circuit conditions with certified voltage detectors.

Technical Specifications

Advanced Protection Mechanisms

• Mechanical Safety: Dual-position limit switches prevent overtravel of contact mechanism

• Short-Circuit Performance: Withstands 2× overload current without winding deformation (per IEC 60076-11)

• Damping Resistor Integration: Controls transient capacitance during transformer discharge testing

Application Scenarios

Ideal for:

Dielectric Strength Testing

Precisely control test voltages for cable/transformer insulation validation

HV Equipment Calibration

Stable power source for calibrating voltmeters & partial discharge detectors

Research Laboratories

Adjustable voltage supply for material breakdown testing

Why Choose Contact-Type Regulation?

Unlike electronic regulators, our carbon-contact technology provides:

1. Zero-phase shift output

2. Superior harmonic performance (≤3% THD)

3. Higher overload tolerance

4. Reduced electromagnetic interference

Engineering Insight:

For transformer discharge testing applications, the integrated damping resistor limits inrush current to:

Ipeak = Vmax / √(R2 + (1/ωC)2)

Where C = test object capacitance, ensuring safe discharge per IEEE C57.152 guidelines.