Brife Introduction

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& LV electrical products, such as insulators, bushings, transformers, cables, surge arresters, SPD, switchgears, disconnectors, etc.

HVGrand also specializes in advanced lightning protection and high voltage test systems for the aerospace and military defense industry.
Through precision engineered solutions and globally recognized standards compliance, HVGRAND enables reliable validation of aircraft and system resilience.
Our commitment to performance, safety and innovation supports confidence and progress across lightning direct & indirect effects test, EMP and ESD testing worldwide.

We have supplied our products to the domestic and international customers, such as ONERA (French aerospace research lab), Hitachi (Switzerland), LCOE (Spain famous lab), AME Italy, EGU (Czech), ICMET (Romania), LNE France, RAYCAP (USA and Slovenia), Eaton India, Novaris (Australia and Malaysia), Sediver France (SEVES), Koncar Croatia, ELKA Cable (Croatia), LVT test lab (Turkey), CLAMPER (Brazil), GE Prolec (Mexico), Spark insulators (India) etc. Our products have won great praise from our customers.