MEDIUM VOLTAGE APPARATUS IN METAL CASES () FOR SECONDARY POWER SUPPLY
The invention relates to medium voltage cells employed in the national system for secondary power supply. According to the invention, the medium voltage cells use a single multifunction vacuum switching apparatus with three positions (closed, open, grounded), with solid insulation, actuated by perma...
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Zusammenfassung: | The invention relates to medium voltage cells employed in the national system for secondary power supply. According to the invention, the medium voltage cells use a single multifunction vacuum switching apparatus with three positions (closed, open, grounded), with solid insulation, actuated by permanent magnets electromagnets (37, 40) with magnetic locking, with local or remote control provided by an electronic module (6) performing the function of switching off for nominal currents, overload currents or short-circuit currents, separation and ground connection.
Invenţia se referă la celule de medie tensiune, folosite în sistemul naţional de distribuţie secundară a energiei electrice. Celulele de medie tensiune, conform invenţiei, folosesc un singur aparat (34) multifuncţional, de comutaţie în vid, cu trei poziţii (închis, deschis, legat la pământ), cu izolaţie solidă, acţionat cu electromagneţi (37 şi 40) cu magneţi permanenţi, cu zăvorâre magnetică, comandat local sau de la distanţă, printr-un modul (6) electronic, asigurând funcţiile de întrerupere a curenţilor nominali, de suprasarcină sau de scurtcircuit, de separare şi de legare la pământ. |
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