On July 4, 2025, Goldhome's independently developed 300kV impulse voltage generator system was officially loaded onto a truck and shipped to Shenyang.
On July 4, 2025, the Goldhome factory grounds were bustling with activity yet orderly. A complete set of 300kV impulse voltage generators, entirely independently researched, designed, and manufactured by the company, successfully completed all factory tests and waveform calibration, entering the final stage of packaging and shipment. Workers collaborated efficiently, carrying out tasks such as seismic reinforcement of the main tower, independent encapsulation of capacitor units, and protection of control cables, creating a scene of intense yet orderly activity. A heavy-duty truck fully loaded with equipment was about to leave the premises, heading to the customer's site in Shenyang, Liaoning.
The technical supervisor closely monitored the packing process throughout, meticulously verifying the shipping list and protective measures to ensure the safe and undamaged transport of this high-voltage impulse test equipment over the long journey.
Product Advantages: Standard Lightning Impulse, Precisely Meeting Insulation Testing Requirements for Medium-Voltage Levels
The 300kV impulse voltage generator shipped this time is a mature product from Goldhome in the field of high-voltage impulse testing, featuring the following outstanding advantages:
- Standard Impulse Waveform: Capable of generating a 1.2/50µs standard lightning impulse voltage with a peak of 300kV, fully meeting the requirements for lightning impulse withstand voltage testing and insulation coordination studies of 10kV and 35kV power equipment.
- Compact and Efficient Design: Utilizes an optimized Marx multiplier circuit, resulting in a compact and lightweight unit that is easy to transport and install on-site; Discharge capacitors utilize low-inductance high-voltage pulse capacitors, with adjustable leading and trailing edge resistances, ensuring smooth waveforms without oscillation.
- Intelligent Control System: Equipped with PLC + touchscreen fully automatic control, featuring charging voltage setting, automatic polarity switching, multiple consecutive discharges, real-time waveform acquisition and analysis, as well as support for data storage and report printing.
- Multiple Safety Protections: Features protection mechanisms including overcurrent, overvoltage, ground interlock, door interlock, and emergency shutdown. The discharge circuit is enclosed to ensure the safety of both operators and equipment.
- Packaging Process: Meticulous protection ensures zero risk during long-distance transport
- Given the moderate size and precision components of 300kV impulse test equipment, Goldhome has implemented a standardized packaging solution:
- Main Tower Frame: A steel reinforcement frame and cushioning pads are used. The entire unit is hoisted into a reinforced wooden crate, filled with high-density foam on all sides, and fitted with shock-absorbing wooden blocks at the bottom.
- Capacitor Units: Each capacitor is individually wrapped in anti-static foam. Residual charge is discharged before packing, and the outer box is labeled with "High-Voltage Component" and "Shock-Resistant" markings.
- Control and Measurement System: Precision instruments such as control cabinets, oscilloscopes, and voltage dividers are protected with a dual-layer system of air cushion film and moisture-proof bags. They are packed in separate boxes with desiccants added.
- On-site Supervision: Quality inspectors document the entire process with photographs and verify the packing list to ensure no components (discharge gaps, resistor assemblies, connection cables) are omitted.
This 300kV impulse voltage generator is a custom-built high-voltage testing device involving critical technical aspects such as front-end and rear-end resistance matching, discharge gap debugging, and overall waveform calibration. From confirming customer requirements, designing solutions, scheduling material production, and assembly and debugging to final factory acceptance, Goldhome leveraged its mature flexible production system and comprehensive supply chain resources to complete the entire manufacturing and debugging process in less than 25 days. The unit passed the customer's remote video acceptance inspection on the first attempt and was delivered on time.
"The 300kV impulse generator imposes strict requirements on loop inductance control, grounding shielding, and waveform smoothness," stated Goldhome's production manager. "Our technical team worked closely with the production crew to ensure the final output waveform met the 1.2/50µs ±10% requirement, with an impulse efficiency exceeding 90%-outperforming the contractual specifications. This once again demonstrates Goldhome's mass production capabilities and technical expertise in the field of high-voltage impulse testing equipment."
