Industrial Power Regulation Redefined

The LQDZ-500KVA/10kV contact type voltage regulator delivers precise voltage control for critical industrial processes. Designed for 50Hz power systems, this single-phase regulator combines robust construction with advanced motor-driven adjustment to maintain stable 0-3kV output under demanding conditions.

Technical Specifications

Advanced Performance Features

Motor-Driven Voltage Regulation

Precision electrical drive system enables smooth 0-3kV adjustment with programmable regulation speed and position feedback via terminal contacts.

Robust Short-Circuit Protection

• Withstands 2× rated current for 8 cycles

• Zero winding deformation or mechanical damage

• Automatic discharge via damping resistance

Thermal Management System

• ONAN Cooling: Oil Natural Air Natural technology

• Temperature Limits:

• Oil surface: <55K rise

• Winding: <65K rise (at 360kVA/10min)

Engineering Design & Safety

Structural Components

1. Upper/lower position limit switches

2. Oil drain valve with magnetic indicator

3. Integrated regulation and voltage-raising units

4. Protection contacts for system interlocks

Operational Protections

• 60-minute continuous operation at 100% load

• Linear impedance characteristics (50-100% load range)

• Position indicators with fail-safe contacts

"The LQDZ series' short-circuit endurance exceeds IEC 60076-5 requirements by 40%, making it ideal for unstable grid applications."

- Power Systems Engineering Journal

Industrial Applications

Power Quality Testing

Precision voltage simulation for compliance testing (IEC 61000-4-11)

Manufacturing Systems

Stable voltage supply for industrial furnaces and heavy machinery

Research Facilities

High-voltage experimentation with programmable regulation

Energy Infrastructure

Substation voltage stabilization and transformer testing

Compliance & Certifications

• IEC 60076: Power transformers

• IEC 60214: Tap-changers

• IEEE C57.12.00: General requirements

• ISO 12944: Corrosion protection