Import 2400kv 240 Kj Impulse Voltage Generator — Buy in wholesale FOB from Supplier in China

The 2400kV 240 KJ Impulse Voltage Generator from Wuhan GDMK Electric Co., Ltd. is a high-energy test system designed for generating standard lightning impulse voltages on large power apparatus. The system delivers a rated nominal voltage of 2400kV with stored energy of 240kJ, making it suitable for testing ultra-high-voltage transformers, reactors, GIS assemblies, and bushings at voltage classes well above 500kV. Unlike the smaller 450kV/20kJ systems in the supplier's portfolio, this unit is built for sub-station level and manufacturer laboratory validation of insulation coordination.

Impulse voltage generators of this class typically employ a Marx circuit with multiple stages of impulse capacitors arranged in parallel charging and series discharging configuration. Standard industry practice uses oil-impregnated paper or film capacitors with low inductance connections to achieve wavefront times of 1.2 microseconds and wavetail times of 50 microseconds per IEC 60060-1. The efficiency factor, front resistor, and tail resistor values determine waveform conformity; typical total impulse capacitance for a 2400kV system ranges from 0.5 to 2.0 microfarads depending on stage count and energy rating. Waveform chopping for steep-front studies is achieved with a triggered gap or rod-plane gap on the test object side.

Buyers include national power grid corporations, large transformer manufacturers, independent testing laboratories, and university research institutes conducting dielectric research. The generator is shipped in modular stages for on-site assembly, with each stage typically weighing 800-1500kg. Incoming inspection should verify capacitor energy ratings, sphere gap calibration certificates, and divider ratio traceability. Confirm with Wuhan GDMK Electric whether the 240kJ rating refers to single-shot or repetitive duty, and whether the quoted voltage is bipolar or single-polarity peak.

Wuhan GDMK Electric Co., Ltd. is located in Jiangxia District Economic Development Zone, Daqiao New District, Huangjiahu Avenue, Wuhan, Hubei Province, 430200, China. The supplier holds a harbor trust tier on the platform, with a response rate of 0.00 percent and no recorded average response time. This profile does not indicate verification of factory assessment, export license documentation, or ISO 9001 quality management certification. Buyers should conduct independent due diligence on the company's manufacturing scope and whether it builds 2400kV-class equipment in-house or sources major sub-assemblies.

The supplier's published product range includes smaller 450kV/20kJ impulse test systems alongside the 2400kV unit, suggesting capability across low to ultra-high-voltage test equipment. No information is provided about design engineering staff, installed base references, or after-sales service network coverage. The company address places it within Wuhan's industrial corridor, a region with established electrical equipment manufacturing infrastructure. Buyers are advised to request factory layout drawings, stage capacitor manufacturer certificates, and witness test protocols before committing to an order of this capital magnitude.