Product Overview

The LQDZ-150kVA/0.4kV contact type voltage regulator delivers precise 0-650V adjustable output for high-voltage testing, manufacturing, and R&D applications. Engineered with symmetrical compensation circuitry and reversed polarity voltage regulation, it ensures linear voltage output with ≤3% waveform distortion.

Technical Specifications

Core Technologies

1. Precision Voltage Regulation

• Symmetrical Compensation Circuit: Maintains linear output (±0.5% accuracy)

• Reversed Polarity Design: Eliminates voltage spikes during adjustment

• Starting Voltage: ≤1% of rated output

2. Control & Safety Systems

• Servo Motor Drive: Programmable regulation speed (0.5-5V/sec)

• Triple Protection: Magnetic oil indicator + Position contacts + Interlock system

• Secondary Switch Interlock: Prevents unauthorized operation (IEC 60204-1)

Performance Data

Output Characteristics: Linear current delivery (0-230.8A) across full voltage range (0-650V)

Thermal Endurance: 60-minute continuous operation at 100% load (40°C ambient)

Industrial Applications

• High-voltage component testing labs

• Transformer manufacturing quality control

• Power system simulation (IEC 60076 compliance)

• Research facilities requiring precise voltage ramping

"The LQDZ series enables ±0.2% voltage stability during dielectric tests - critical for IEC 60270 partial discharge measurements."

High-Voltage Lab Technician, Munich

Compliance & Certifications

Designed to meet:

• IEC 61010-1: Safety requirements for electrical equipment

• IEEE C57.12.00: Standard for liquid-immersed transformers

• EN 50588: Medium power transformers 1kV-36kV

Why Choose LQDZ Regulators?

1. Zero-Interruption Adjustment: Continuous voltage transition without output cutoff

2. ONAN Cooling Efficiency: 150kVA capacity with natural convection only

3. Reduced Maintenance: Silicone-insulated components (2,000+ operation cycles)