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Patent Searching and Data


Title:
SAFETY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/004876
Kind Code:
A1
Abstract:
The invention is used for protecting a transformer against short-circuiting and overloads in the primary winding. The invention makes it possible to achieve a simplification of the design, the absence of a reaction to current changes caused by voltage surges, to eliminate unwarranted cutting off of a consumer, to produce information about actuation of the device, and to increase safety. A device comprises a housing (1) in the form of a tube with contact caps (2, 3), an electromagnetic tripping mechanism (4), a unit (5) for controlling the tripping mechanism, a trip-free release mechanism (6) and an actuation indicator (7). The electromagnetic tripping mechanism (4) comprises a magnetic conductor (8), and an inductance coil (9) with a magnetic core (10) and an armature (11). The unit (5) for controlling the tripping mechanism comprises a resettable fuse (12) and a variable resistor (13) which are connected in parallel. The trip-free release mechanism (6) comprises a guide element (15), a bushing (16), an opening spring (17), a damping spring (18) and a monofilament thread (19).

Inventors:
TOKAREV, Aleksey Anatolyevich (ul. Frezerovschikov, 39a-44Ekaterinburg, 5, 620135, RU)
LAVROV, Ivan Pavlovich (ul. Molodezhnaya, 5S. Emashi,Belokataiskiy raion, 0, Republic Of Bashkortostan, 452590, RU)
MARCHENKO, Igor Nikolaevich (Tbilisskiy bulvar, 13/2-36Ekaterinburg, 9, 620089, RU)
Application Number:
RU2018/050066
Publication Date:
January 03, 2019
Filing Date:
June 27, 2018
Export Citation:
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Assignee:
OBSHCHESTVO S OGRANICHENNOY OTVETSTVENNOST'YU «SVERDLOVELEKTRO–SILOVYE TRANSFORMATORY» (OOO «SVEL-SILOVYE TRANSFORMATORY») (ul. Cherniahovskogo, 61Ekaterinburg, 620010, RU)
International Classes:
H02H9/04; H01H73/00
Foreign References:
RU78985U12008-12-10
RU2407127C22010-12-20
CN201001023Y2008-01-02
US20040000983A12004-01-01
Attorney, Agent or Firm:
KAZGOVA, Kristina Andreevna (ul. Chernyahovskogo, 61Ekaterinburg, 620010, RU)
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