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August 15,2025
Successful Inspection of 200kA 8/20us Impulse Current Generator
On August 15,2025, HVGRAND staff had a vedio meeting with Australian and Malaysian customer for the inspection of impulse current generator.

The generator can output 200kA 8/20us and 50kA 10/350us.

The inspection was successful. The customer spoke highly of our waveforms, saying they were clean, accurate and had very low overshoot.
JULY 15,2025
Delivery of 1200kV Impulse Generator to Insulator Customer
HVGRAND will deliver 1200kV 30kJ impulse voltage generator with steep front unit to insulator manufacturer. The generator can output 1.2/50 us and steep front wave (with steepness greater than 1000kV/μs) for composite insulators testing and steep front wave (with steepness greater than 2500kV/μs) for glass and porcelain insulators.
JULY 15,2025
Shipment of 100kV Step up Transformer to Europe
HVGRAND will deliver 100kV 0.2A AC test transformer to European customer.

The PD is less than 2PC @100kV.

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About Us

Sanmen Shixuan Electric Co.,Ltd.(HVGrand is our logo) is a professional provider of high voltage test facilities and test solutions for the testing of MV & HV electrical products, such as insulators, bushings, transformers, cables, surge arresters, SPD, switchgears, disconnectors, etc. Our factory covers an area of 6000 square meters, we have 45 staff with professional staff and senior engineers included.

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Company: Sanmen Shixuan Electric Co.,Ltd.
Address: Wu Jian Industrial Park, Jiangdu,Yangzhou, Jiangsu Province, China
Foreign Sales Manager: Lily
Tel.: +86-15801788963
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