Guildline Instruments model 9910A High Voltage capacitance bridge is an instrument employing the AC Current Comparator principle.
This makes the 9910A a unique and versatile instrument for a wide range of applications including cable testing, corona loss measurements, insulator and dielectric testing, inductance measurements, potential transformer error measurements, shunt reactor loss measurements and power transformer testing.
Better than 15 ppm accuracy, permanent
Direct reading, six-digit measurements of capacitance from 100 pf to 1000 μF
Dissipation factor up to 11.1 percent
Working Voltage to 50 kV with 9911
Safe to operate, even into megavolt region. Bridge components remain at ground potential.