Engineered for Precision High-Voltage Control

The LQCZ-125kVA cylinder-type voltage regulator delivers stable 0-3.3kV adjustable output for demanding industrial applications. Featuring ONAN (Oil Natural Air Natural) cooling and electrical drive regulation, it meets rigorous standards for high-voltage testing, transformer manufacturing, and power quality simulation. With ≤3% waveform distortion and ≤60dB operational noise, it ensures laboratory-grade accuracy in industrial environments.

Technical Specifications

Core Technologies

1. Intelligent Electrical Drive System

• Single-phase DC motor for precise voltage adjustment

• Upper/lower limit locks to prevent over-travel faults

• Programmable regulating speed with position feedback

2. Robust Overload Protection

3. Short-Circuit Resilience

Withstands >2× output current for 8 AC wave cycles (160ms at 50Hz) without thermal damage or mechanical deformation when used with protective resistors.

Structural Advantages

• Cylinder Design: Optimized oil circulation for enhanced heat dissipation

• Safety Systems: Oil level indicator, drain valve, and pressure-relief diaphragm

• Terminal Protection: Reinforced bushings for 3.3kV output stability

Operational Guidelines

Duty Cycle Management

• Standard Operation: 60 mins continuous at 100% rated load

• Cooling Recovery: 30 mins idle after maximum duration cycles

Critical Safety Protocols

1. Verify oil level before operation (min. 25°C)

2. Engage motor reversal lock during maintenance

3. Monitor bushings for carbon tracking monthly

Industry Applications

High-Voltage Testing

Dielectric strength validation per IEC 60270

Transformer Manufacturing

Winding stress testing up to 3.3kV

Power Quality Simulation

Voltage sag/swell testing (IEC 61000-4-11)

Compliance & Standards

• IEC 60076-1 (Power transformers)

• IEEE C57.12.00 (Safety requirements)

• EN 50588-1 (Medium power transformers)

• ISO 3744 (Acoustic noise measurement)