The Model CB-100 Low-Voltage Capacitance and Insulation Power Factor Test Set is a self-contained instrument for the accurate measurement of electrical insulation characteristics. Model CB-100 is an easily balanced, direct-reading bridge designed for testing in the laboratory, shop or substation.Measurements of capacitance are expressed in μF or pF.The dissipation factor, or “power factor” is indicated directly in percent. The test selector switch allows the operator to conduct up to five tests in both the GST and UST configurations without the need to change the lead connections to the specimen.