AC Resonant Test System with PD

The AC Resonant Test System with PD (Partial Discharge) is a high - performance testing device developed by Wuhan Goldhome Hipot Electrical Co., Ltd for high - voltage electrical equipment in power systems. It is designed for AC withstand voltage tests and partial discharge detection, utilizing variable - frequency power supply to achieve resonance between inductance (L) and capacitance (C), thereby applying high voltage to test samples.

• Enhanced Safety: Multiple protections (over - voltage, over - current, breakdown) for operator and equipment safety.
• User - Friendly Design: Simplified wiring and microcomputer - controlled system ensure stable, intuitive operation.
• Portability: Compact structure for easy transportation and on - site testing.
• Low Distortion: Output sine wave distortion <1% for non - destructive testing.
• Energy Efficiency: High output power with low input requirements, ideal for limited power supply scenarios.
• Data Management: Data storage, query, and print functions for analysis and reporting.
• Flexible Modes: Supports single/three - phase switching and parallel operation for diverse testing needs.
• Self - Healing Capability: Automatic repair of partial amplifier tube failures.

• Altitude: ≤3000m
• Temperature: - 10℃ to 40℃
• Humidity: ≤95% (at 25℃)
• Storage Temperature: - 20℃~50℃
• Humidity: ≤95%
• Environment: Free of conductive dust, explosive hazards, corrosive gases; reliable grounding; tilt ≤5°.

Routine Maintenance:

Regularly inspect wiring and tighten connections.

Keep the device clean and dry to prevent dust accumulation.

Secure equipment during transport with dedicated straps.

Discharge capacitors fully before servicing.

Common Issues & Solutions:

• Power Indicator Off: Check if the circuit breaker is closed or press the panel's power button.
• Control Interface Failure: Ensure power and communication links (fiber/wireless) are active; reboot.
• Tripped Circuit Breaker: Disconnect output filter 1P breaker; use non - leakage - protected breakers.
• HV Measurement Box Setup: Turn off measurement switches in the calibration interface, save settings, and restart.
• "Overload Protection" Alert: Reduce excitation transformer ratio (adjust taps) to minimize losses.

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• Input Power: 3 - phase AC 380V±10%, 50Hz
• Output Voltage: Line voltage 0~350V (continuously adjustable)
• Output Current: Max. 857A (resistive load)
• Output Power: 300kW
• Frequency Range: 20~300Hz; precision ±0.1Hz
• Continuous Operation: 180 minutes at full load
• Partial Discharge: ≤10pC
• Noise Level: <85dB