LEVEL INDICATOR

The invention relates to a level indicator for an electro-insulating liquid in a power transformer. According to the invention, the level indicator consists of a metal casing (1) which has mounted, at the inside, a capacitor (2) consisting of an assembly of metal plates, mounted on some lower and up...

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Bibliographische Detailangaben
Hauptverfasser: UNGUREANU CONSTANTIN, OLARIU ELENA-DANIELA, CUJBĂ TIBERIU OCTAVIAN, SOREA NICOLAE, GUGOAŞĂ MIHAELA, BACIU IULIAN, BUZDUGA CORNELIU, CERNOMAZU DOREL, PRISACARIU ILIE, CREŢU NICULINA, MANDICI LEON
Format: Patent
Sprache:eng ; rum
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Zusammenfassung:The invention relates to a level indicator for an electro-insulating liquid in a power transformer. According to the invention, the level indicator consists of a metal casing (1) which has mounted, at the inside, a capacitor (2) consisting of an assembly of metal plates, mounted on some lower and upper electro-insulating supports (3 and 4), fixed, in their turn, on an electro-insulating axle (5), an electrical connection with the exterior being performed by means of a terminal cover (6), and at the upper side of the casing (1) there being provided a viewing hole (7), which, in another embodiment, comprises a gas analyzer (Ag). By the electronic measurement of the capacity there is obtained information on the liquid level, and by the gas analysis there may be located internal faults of a power transformer. Invenţia se referă la un indicator de nivel al unui lichid electroizolant dintr-un transformator de forţă. Indicatorul de nivel, conform invenţiei, este alcătuit dintr-o carcasă (1) metalică ce are montat la interior un condensator (2) format dintr-un ansamblu de plăci metalice, montate pe nişte suporturi (3 şi 4) electroizolante, inferior şi superior, fixate, la rândul lor, pe un ax (5) electroizolant, o legătură electrică cu exteriorul fiind realizată printr-un capac de borne (6), iar la partea superioară a carcasei (1) fiind prevăzut un capac (7) de vizitare, care, într-o variantă de realizare, conţine un analizor de gaze (Ag). Prin măsurarea electronică a capacităţii se obţin informaţii despre nivelul de lichid, iar prin analiza gazelor se pot localiza defecte interne ale unui transformator de forţă.