Establish more than 75 years ago, ISA is a worldwide leader in the development of testing devices for the power utilities. Our area of expertise includes: • relay testing systems • circuit breakers analyzers • CT/VT and power transformers testing systems • primary and secondary injection test sets • battery testing systems • HV surge arrestors testing system • continuous on line diagnostic systems for substation assets • travelling wave fault locator systems Our Sales force covers more than 100 countries worldwide, with branches in India, Singapore, UAE and Brazil with a network of exclusive distributors and agents. If you want to keep updated on our products and exhibitions, subscribe to our newsletter on www.isatest.com