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>350kVA Range

LQDZ 500kVA |380V Input | 0-3kV Adjustable Output |Manual Contact Voltage Regulator| Industrial Voltage Stabilizer

Discover the LQDZ 500kVA contact type regulator with 0-3kV output range. Features servo motor control, symmetrical compensation technology, and ONAN cooling for industrial high-voltage applications.


  • US$ 32,788.00
  • Lead time: 60 days

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Product Details

Product Tags

LQDZ 500kVA Contact Type Regulator: Precision High-Voltage Control

Product Overview

The LQDZ 500kVA contact type regulator delivers precise 0-3kV adjustable output for industrial power systems. Designed for 60Hz operations with electric drive voltage adjustment, this single-phase solution ensures stable voltage regulation in testing labs, manufacturing facilities, and energy infrastructure.

Technical Specifications

ParameterSpecificationStandard
Rated Capacity500kVAIEC 60076
Input Voltage0.38kVIEC 60038
Output Voltage0-3kV adjustable
Output Current0-166.6AIEC 60269
Waveform Distortion<3%IEC 61000-3-2
Impedance Voltage7.5%IEC 60076-5

Core Technologies

Symmetrical Compensation Circuit

Ensures linear output voltage characteristics with minimized waveform distortion (<3%). The reversed polarity voltage regulation maintains smooth transitions during adjustment cycles.

Electric Drive Adjustment System

  • Single-phase AC servo motor control

  • Programmable regulating speed

  • Position indicators with terminal contacts

"The symmetrical compensation design reduces voltage spikes by 40% compared to conventional regulators, ensuring stable output under load variations."

– High Voltage Engineering Journal

Safety & Control Features

  • Integrated Protection System:

    • Magnetic oil level indicator

    • Protection contacts for overload shutdown

    • Interlock between regulator and control systems

  • Cooling System: ONAN (Oil Natural Air Natural) cooling for continuous 1-hour operation at full load

  • Starting Voltage: <1.5% for smooth ramp-up

Industrial Applications

Ideal for:

  1. High-voltage equipment testing laboratories

  2. Transformer manufacturing quality control

  3. Power distribution system simulation

  4. Renewable energy converter testing

Operational Advantages:

  • Precise 0-3kV linear adjustment

  • Servo motor-driven fine control (±0.5% accuracy)

  • Configurable regulating speed

  • Secondary switch compatibility

Compliance & Certifications

Meets global standards for high-voltage equipment:

  • IEC 61010-1: Safety requirements

  • IEC 60076: Power transformer standards

  • IEEE C57.12.00: General requirements

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