High-Voltage Regulation Technology

The LQCZ cylinder-type voltage regulator delivers industrial-grade power conversion with advanced safety features:

• Model: LQCZ 400KVA/10KV/0~10.5KV

• Voltage Transformation: Steps up 0.4kV input to adjustable 0-10.5kV output

• Precision Control: ±1% regulation accuracy with DC motor drive

• Rapid Adjustment: 0-2kV/s variable boost rate

Technical Specifications

Performance & Safety Features

Electrical Drive System

• Single-phase DC motor control

• Upper/lower limit protection

• Boost rate: 0-2kV/s adjustable

Overload Capability

• 120% rated current: 60 minutes

• 140% rated current: 30 minutes

• 160% rated current: 5 minutes

Short-Circuit Withstand

• 2× output current discharge

• 8 wave cycle duration

• Zero mechanical distortion

Thermal Management

• Cooling: ONAN (Oil Natural Air Natural)

• Continuous operation: 60 min @ 100% load

• Starting voltage: <1%

Advanced Protection Systems

• Automatic fault prevention via limit functions

• Protection resistor for discharge management

• Impedance voltage ≤7% (linear 50-100% range)

• Designed to prevent thermal damage during faults

Industrial Applications

Power Transmission

• Substation voltage control

• Grid stability maintenance

Manufacturing

• High-voltage equipment testing

• Industrial process power systems

Research Facilities

• High-voltage laboratories

• Material dielectric testing

Compliance & Standards

Engineered to meet international electrical standards:

• IEC 60076 Power Transformer Requirements

• IEC 60270 Partial Discharge Standards

• Industrial-grade insulation for 10.5kV operation

Technical Support

Our engineering services include:

• Installation supervision

• Load scenario optimization

• Thermal performance analysis

• Regulation accuracy verification