Voltmeter for continuous HV with superimposed alternating component - uses resistive potential divider connected to protective amplification circuit via measuring conductor(SE 2.3.81)

The voltmeter is esp. for high voltage distribution network using a gas insulation for a screened conductor. The conductor is connected to time resistors (18,20) forming a potential divider to which a measuring conductor (22) is connected. The resistors enable a voltage to be obtained which is independent effects. The measuring conductor passes through an insulated hole in a cover of the metallic screen and allows the voltages w.r.t. ground to be measured by an instrument (26) connected via a protective amplification circuit (24). DISPOSITIF COMPRENANT AU MOINS DEUX RESISTANCES OHMIQUES MONTEES EN SERIE ENTRE LE POTENTIEL HAUTE TENSION ET LA MASSE ET FORMANT UN DIVISEUR DE TENSION, LA RESISTANCE CONNECTEE A LA MASSE SERVANT DE RESISTANCE DE MESURE.LA RESISTANCE 32 SITUEE DU COTE HAUTE TENSION ETOU LA RESISTANCE DE MESURE 34 SONT CONSTITUEES D'ELEMENTS DE CONFORMATION SENSIBLEMENT IDENTIQUE ET S'ASSEMBLANT EN UN MONTAGE MODULAIRE, UN ELEMENT DE RESISTANCE ETANT FORME D'UN CORPS ISOLANT CONSTITUANT UN SUBSTRAT D'UNE MATIERE POUR RESISTANCE ET SUR LA SURFACE EXTERIEURE DUQUEL CETTE MATIERE EST DEPOSEE.APPLICATION EN PARTICULIER AUX INSTALLATIONS DE DISTRIBUTION A HAUTE TENSION, A BLINDAGE METALLIQUE 10, 12, 14 ET A ISOLATION GAZEUSE PAR DU SF.