Megger CB-100 Power Factor Tester is lightweight and portable, tests at 100-Hz test frequency and 30-V output voltage. It is designed for testing in the laboratory, shop or substation. Model CB-100 is a self-contained instrument that accurately measures insulation characteristics. Model CB-100 tests even in hostile environments where nearby excited devices may prevent meaningful measurements. Capacitance and dissipation factor read out directly from the instrument – no calculation is required. Unit tests complex insulating systems without changing leads.