High-Precision Voltage Regulation Technology

The LQDZ 400/3.3kV contact-type voltage regulator delivers precision voltage control through advanced engineering:

• Model: LQDZ 400/3.3kV/0~6.3kV

• Symmetrical Compensation Circuit: Ensures linear output voltage characteristics

• Reversed Polarity Voltage Regulation: Maintains waveform stability (≤3% aberration)

• Electrical Drive System: DC motor adjustment for smooth voltage transitions

Technical Specifications

Robust Performance Features

Overload Capability

• 120% rated current: 60 minutes continuous

• 140% rated current: 30 minutes continuous

• 160% rated current: 5 minutes continuous

Cooling & Operation

• Cooling Method: ONAN (Oil Natural Air Natural)

• Duty Cycle: Continuous operation with 1-hour stabilization

Safety & Control Systems

• Magnetism oil surface indicator

• Position indicator with terminal contacts

• Protection contacts for emergency shutdown

• Interlock system between regulator, control table, and secondary switch

• Servo motor driving device

The DC motor-driven adjustment provides programmable regulation speed with exceptional stability during voltage transitions.

Industrial Applications

This regulator is ideal for:

• High-voltage test laboratories

• Transformer manufacturing facilities

• Power distribution system validation

• Industrial process control requiring precise voltage ramping

• Research and development centers

Compliance & Standards

Designed to meet international electrical safety requirements including IEC 61010 for high-voltage measurement equipment. All critical components feature industrial-grade insulation for 6.3kV operation.