The CT-8000 is Vanguard’s fifth generation, stand-alone, microprocessor-driven EHV circuit-breaker analyzer. Model feature three digital travel transducer input channels. The CT-8000 can operate either in Time-Travel analyzer mode or in “on-line” timing mode. In Time -Travel mode, the CT -8000 can fully analyze a circuit breaker’s performance by testing the contact time, stroke, velocity, over travel, and contact wipe. Contact motion analysis can be performed for all breaker contact operations (Open, Close, Open – Close, Close – Open, and Open – Close – Open). The CT-8000’s timing window is selectable between 1-second, 10-second, or 20-second periods. The 10-second and 20-second timing windows are ideal for timing long duration events such as circuit-switcher contact testing. Using a 200-ampere, built-in, DC power supply, the CT-8000 can also perform dynamic-resistance tests.