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A message from Doble about COVID-19
We can be reached at our original phone number:

(909) 923-9390

Vanguard Instruments Co., (VIC), was founded in 1991. Currently, our 28,000 square-foot facility houses Administration, Design & Engineering, and Manufacturing operations. From its inception, VIC’s vision was, and is to develop and manufacture innovative test equipment for use in testing substation EHV circuit breakers and other electrical apparatus.


Field Pictures

ATRT-01 S3 Shipment to Getco, India
Eskom Training at Spitskop, South Africa
Eskom Transformer Test Cart, South Africa
Professor Ron from HV Test, South Africa
DigiTMR Training at WPI Power Solutions, South Africa
EZCT-2000 Test Station at Mitsubishi Electric, Australia
Enertel (Offical Vanguard Rep) Office in Parramatta, Australia
TRM-203 Demag Test at Oncor, Texas
Winding Resistance Test with TRM-203 at Xcel Energy, Lubbock, Texas
ATRT-03 S2 Testing at TBEA, Vadodara, India