HFC 30kW Frequency Converter – High-Power Adjustable AC Source for HV Testing

Designed for demanding high-voltage applications, the HFC 30kW Frequency Converter delivers precise, stable AC power with advanced protection and control features. Ideal for transformer testing, cable diagnostics, and resonant test systems.

Electrical Specifications

Key Performance Features

• Waveform: Pure sine wave output (<1% THD)

• Voltage Stability: ≤1.0% deviation under load

• Frequency Precision: Adjustable in 0.01Hz steps, ±0.05% stability

• Partial Discharge: <5pC at rated power

• Noise Level: ≤80dB during operation

• Duty Cycle: 15 minutes continuous at full load

Safety & Protection Systems

Robust Design

• Optically isolated control/power units (surge protection during breakdown)

• Modular construction: Separate power body and portable control display

EMI Mitigation

• High-permeability magnetic alloy shielding

• Zero electromagnetic radiation design

• Maintains accuracy under strong field interference

Control Cabinet Functions

Operation & Adjustment

1. Start/stop with emergency cutoff

2. Voltage control (coarse/fine adjustment with programmable ramping)

3. Frequency tuning (0.01Hz resolution, adjustable sweep rates)

4. Automatic cooling fan direction control

Testing Modes

• Automatic Sequence:

• Auto-tune for resonance detection

• Programmable voltage ramp (set start/end voltage, dwell time)

• Precision timer (0–99min, 0.1s accuracy) with audible alert

• Manual Mode: Custom tuning with auto-timing options

Protection Features

• Adjustable overvoltage/overcurrent thresholds

• Real-time monitoring of output parameters

Typical Applications

• Power transformer withstand voltage tests

• XLPE cable partial discharge measurement

• Gas-insulated switchgear (GIS) testing

• Rotating machine insulation diagnostics

With its high-power output, precision control, and industrial-grade protection, the HFC 30kW Frequency Converter meets IEC and IEEE standards for high-voltage testing equipment.