DEVICE FOR CALIBRATING INSTRUMENT VOLTAGE TRANSFORMER Russian patent published in 2005 - IPC

Abstract RU 2248002 C2

FIELD: instrument engineering.

SUBSTANCE: device has high-voltage sound frequency signal generator, dc double-rowed potentiometer, high- and low-voltage compensation measurement units which are brought into circuits of primary and secondary windings of instrument voltage transformer to be calibrated. Measurement units have diodes and capacitors for working voltages. Dc dividers and sources are connected through galvanometers.

EFFECT: widened test voltage range.

1 dwg

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RU 2 248 002 C2

Authors

Lomtev E.A.

Nefed'Ev D.I.

Dates

2005-03-10—Published

2003-05-05—Filed