Ultra-High Voltage Regulation for Industrial Applications

The LQCZ-200kVA/0.38kV cylinder voltage regulator delivers precision 0-3.15kV adjustable output with ≤3% waveform distortion. Engineered for 60Hz power systems with ONAN cooling and electrical drive regulation, this industrial-grade solution ensures stable high-voltage control for testing facilities, research labs, and power infrastructure.

Technical Specifications

Core Engineering Features

1. Precision High-Voltage Control

• Electrical Drive Regulation: Smooth voltage adjustment (0.5-5kV/min programmable)

• Ultra-Linear Output: ±0.5% deviation across 0-3.15kV range

• Upper/Lower Limit Functions: Prevents over/under voltage operation

2. Robust Protection Systems

• 8-Cycle Short-Circuit Withstand: No damage after 2× output current discharges

• Overcurrent Protection: Withstands 200% output current transient

• Thermal Monitoring: Embedded temperature sensors in windings

Performance Excellence

Critical Performance Metrics:

• Noise Level: <60dB at 1m distance (ISO 3744 compliant)

• Duty Cycle: 60min continuous at 100% load

• Efficiency: 98.2% at 75% load (IEC 60076-14)

• Regulation Speed: 0.1kV/sec minimum adjustment rate

Structural Design & Safety

• Cylinder Construction: Optimized magnetic flux distribution

• Oil Management System: Magnetic oil indicator + Drain valve

• Cooling: ONAN (Oil Natural Air Natural) convection

• Terminals: HV bushings rated for 4.5kV AC

Industrial Applications

Optimized For:

• High-voltage cable testing (up to 33kV class)

• Transformer impulse testing facilities

• Power electronics R&D laboratories

• Electrical safety compliance testing

"The LQCZ's 0-3.15kV range is critical for our IEC 60270 partial discharge testing on medium-voltage switchgear."

High-Voltage Lab Manager, Siemens Energy

Control & Monitoring Systems

• Precision Position Feedback: Optical encoder with 0.1% resolution

• Programmable Limits: Voltage ramp rate and boundary settings

• Remote Operation: Modbus RTU/TCIP protocol support

• Protection Contacts: Dry contacts for emergency shutdown

Compliance & Certifications

• IEC 60076: Power transformers

• IEEE C57.12.90: Liquid-immersed transformers

• IEC 61010-1: Electrical safety requirements

• EN 50588: Medium power transformers

• ISO 3744: Acoustic noise emissions

Operational Advantages

1. Zero-Crossover Adjustment: Continuous voltage transition up to 3.15kV

2. High Voltage Precision: ±0.25% stability under load variance

3. Low Noise Operation: <60dB for laboratory environments

4. Maintenance-Free Design: Sealed tank with silica gel breather