DISPOSITIF DE MESURE DE TENSIONS ALTERNATIVES ELEVEES DANS DES INSTALLATIONS DE COMMUTATION HAUTE TENSION

A device for measuring high alternating voltages in high-voltage switching installations, particularly in metal-encapsulated SF6-gas-insulated high-voltage switching installations, has at least two ohmic resistors (18, 20) arranged in series between the high-voltage potential and earth and forming a...

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Bibliographische Detailangaben
1. Verfasser:	GERHARD KORNER ET VOLKER REES
Format:	Patent
Sprache:	fre
Schlagworte:	BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLYOR DISTRIBUTION OF ELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A device for measuring high alternating voltages in high-voltage switching installations, particularly in metal-encapsulated SF6-gas-insulated high-voltage switching installations, has at least two ohmic resistors (18, 20) arranged in series between the high-voltage potential and earth and forming an ohmic voltage divider, of which the resistor (20) connected to earth is used as measuring resistor. The resistor (18) at the high-voltage end and the measuring resistor (20) are formed of in each case at least one resistance element which consists of an insulating body (32, 34) and resistance material applied thereto. To reduce the constructional size and to simplify the structure, the insulating body (32, 34) is constructed to be tubular and covered on its outside with the resistance material, which is a thick-film paste applied to the insulating body (32, 34) in the form of resistance tracks. The transient voltage distribution is controlled by a single, cap-shaped control electrode (46). L'INVENTION CONCERNE UN DISPOSITIF POUR MESURER DES TENSIONS ALTERNATIVES ELEVEES DANS DES INSTALLATIONS DE COMMUTATION, EN PARTICULIER CELLES SE TROUVANT DANS DES CAPSULES METALLIQUES, ISOLEES AU GAZ SF6.IL COMPREND AU MOINS DEUX RESISTANCES 18, 20 OHMIQUES EN SERIE ENTRE LE POTENTIEL HAUTE TENSION ET LA MASSE ET FORMANT UN DIVISEUR DE TENSION OHMIQUE. LA RESISTANCE 20 A LA MASSE SERT DE RESISTANCE DE MESURE. LA RESISTANCE 18 COTE HAUTE TENSION ET LA RESISTANCE DE MESURE 20 SONT FORMEES RESPECTIVEMENT D'AU MOINS UN ELEMENT RESISTANT CONSTITUE PAR UN CORPS ISOLANT SUR LEQUEL EST APPLIQUEE UNE MATIERE RESISTANTE. POUR DIMINUER L'ENCOMBREMENT ET SIMPLIFIER LA STRUCTURE, LE CORPS ISOLANT EST TUBULAIRE ET SA FACE EXTERNE EST RECOUVERTE DE MATIERE RESISTANTE, SOUS FORME DE TRAJETS DE DIVERSES FORMES. ON PREVOIT UNE ELECTRODE DE COMMANDE EN FORME DE CAPUCHON POUR REPARTIR LES TENSIONS EN CAS DE TRANSITOIRES.APPLICATION AU DOMAINE DE L'EXPLOITATION DU COURANT ELECTRIQUE.