PORTABLE DIGITAL METER OF HEAVY DIRECT CURRENTS Russian patent published in 1999 - IPC

FIELD: electric measurement technology. SUBSTANCE: invention is specifically meant to test stationary measurement systems for currents over 100 kA without their dismantling. Invention suggests that digital integrator based on converter of analog voltage to number of pulses should be used in meter to expand functional capabilities, to increase limits of measured currents and to reduce errors in measurement of currents. EFFECT: increased accuracy of integration, improved technical characteristics of meter. 3 dwg, 1 tbl