FIELD: electric measurement technology. SUBSTANCE: invention can be employed to measure dissipation factor of solid and liquid dielectric materials, such as transformer oil. Device includes measurement computation complex, storage and indication unit and measurement circuit with two outputs. Device can determine both difference of phase angles between input signals and amplitudes of their voltages. EFFECT: increased accuracy of establishment of dissipation factor of tested object on various frequencies of applied voltage. 2 cl, 3 dwg
