Vanguard Instruments

From its inception, Vanguard’s vision was, and is, to develop and manufacture innovative test equipment for use in testing substation EHV circuit breakers and other electrical apparatus.

We are a leading manufacturer of substation testing equipment including: Circuit Breaker Analyzers, Transformer Turns Ratio Testers, Current Transformer Testers, and Circuit Breaker Contact Resistance Meters. We are ISO 9001:2008 certified (Cert. no. US07/934) and we are a certified Minority Business Enterprise (MBE).