FIELD: physics.
SUBSTANCE: invention relates to measurement of electrical values, in particular to indication of high voltage. Checked high-voltage indicator is characterized by that the indication circuit with capacitive high-voltage sensors and a display unit includes a testing circuit. Test circuit includes independent AC testing source; limiting resistor; voltage indicators; shielded conductors connecting high-voltage capacitors and voltage indicators; and capacitance value of which is considerably higher than value of capacitance of high voltage sensors in place of their connection relative to "ground"; to check integrity of indication circuit.
EFFECT: such indicator provides fast determination of good health of all high-voltage sensors, which ensures safety of personnel serving electric installations, as well as efficiency of actions.
1 cl, 1 dwg
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