Guildline Instruments 9910A High Voltage Capacitance Bridge is a measurement standard employing the AC Current Comparator principle. The Current Comparator principle is applied to the measurement of ratio and dissipation factors of high voltage capacitors in a similar manner to the classical Schering Bridge but with greatly improved accuracy and resolution.
The model 99100A Capacitor Reference System comprises a number of highly stable hermetically sealed capacitors with a switch array and a variable high voltage supply. The unique design allows the instrument to be used as a reference for ratio calibration of capacitance measurement instruments in addition to being used reference capacitors. Provision is made for an additional external reference capacitor and also for additional extension of the switched array range with another bank of reference capacitors.