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The Vanguard CT-7000 Digital Circuit Breaker Analyzer is a stand-alone, microcomputer-driven extra high voltage circuit breaker analyzer.
The CT-7000 is a microprocessor-based, digital time travel, circuit breaker analyzer. The CT-7000 can fully analyze a utility circuit breaker’s performance by measuring: the contact time, stroke, velocity, over-travel, bounce-back and contact wipe.
The CT-7000 applies a test voltage of 35 Vdc to each of the contact channels thus allowing an analog to digital converter (A/D) to determine if a close, an open or an insertion resistor was the state of contact. The CT-7000 records into the memory 10,000 readings from the A/Ds and the transducer position counters. The contact time, circuit breaker stroke and velocity is then derived from the data that was stored in the memory.