MD4836B1 - Safety device - Google Patents

Safety device

Info

Publication number
MD4836B1
MD4836B1 MDA20200005A MD20200005A MD4836B1 MD 4836 B1 MD4836 B1 MD 4836B1 MD A20200005 A MDA20200005 A MD A20200005A MD 20200005 A MD20200005 A MD 20200005A MD 4836 B1 MD4836 B1 MD 4836B1
Authority
MD
Moldova
Prior art keywords
tripping mechanism
trip
controlling
unit
actuation
Prior art date
Application number
MDA20200005A
Other languages
Romanian (ro)
Russian (ru)
Other versions
MD4836C1 (en
MD20200005A2 (en
Inventor
Алексей Анатольевич Токарев
Иван Павлович Лавров
Игорь Николаевич Марченко
Original Assignee
Obshchestvo S Ogranichennoy Otvetstvennost`Yu "Sverdlovelektro-Silovye Transformatory" (Ooo "Svel-Silovye Transformatory")
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Obshchestvo S Ogranichennoy Otvetstvennost`Yu "Sverdlovelektro-Silovye Transformatory" (Ooo "Svel-Silovye Transformatory") filed Critical Obshchestvo S Ogranichennoy Otvetstvennost`Yu "Sverdlovelektro-Silovye Transformatory" (Ooo "Svel-Silovye Transformatory")
Publication of MD20200005A2 publication Critical patent/MD20200005A2/en
Publication of MD4836B1 publication Critical patent/MD4836B1/en
Publication of MD4836C1 publication Critical patent/MD4836C1/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage

Abstract

The invention relates to the field of electrical engineering and can be used for protecting a transformer against short-circuiting and overloads in the primary winding.The 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), 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).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.
MDA20200005A 2017-06-29 2018-06-27 Safety device MD4836C1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2017123107A RU2649661C1 (en) 2017-06-29 2017-06-29 Safety device
PCT/RU2018/050066 WO2019004876A1 (en) 2017-06-29 2018-06-27 Safety device

Publications (3)

Publication Number Publication Date
MD20200005A2 MD20200005A2 (en) 2020-07-31
MD4836B1 true MD4836B1 (en) 2022-11-30
MD4836C1 MD4836C1 (en) 2023-06-30

Family

ID=61867471

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20200005A MD4836C1 (en) 2017-06-29 2018-06-27 Safety device

Country Status (5)

Country Link
EA (1) EA036803B1 (en)
GE (1) GEP20217278B (en)
MD (1) MD4836C1 (en)
RU (1) RU2649661C1 (en)
WO (1) WO2019004876A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA035099B1 (en) * 2018-08-02 2020-04-27 Общество С Ограниченной Ответственностью "Свердловэлектро-Силовые Трансформаторы" (Ооо "Свэл-Силовые Трансформаторы") Protective device
RU2685246C1 (en) * 2018-08-02 2019-04-17 Общество с ограниченной ответственностью "СвердловЭлектро-Силовые трансформаторы" (ООО "СВЭЛ-Силовые трансформаторы) Safety device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0205762D0 (en) * 2002-03-12 2002-04-24 Cooper Technologies Co Fuse assembly
US7405646B2 (en) * 2002-06-26 2008-07-29 Littelfuse, Inc Multiple conductor indicator
DE102006034404B4 (en) * 2006-06-08 2014-05-28 Dehn + Söhne Gmbh + Co. Kg Overcurrent protection device for use with overvoltage arresters, with an additional mechanical release designed as a firing pin
CN201001023Y (en) * 2007-01-15 2008-01-02 上海盛善电气有限公司 Power supply protective circuit of apparatus instrument
RU78985U1 (en) * 2008-07-09 2008-12-10 Открытое акционерное общество "Дивногорский завод низковольтных автоматов" (ОАО "ДЗНВА") ELECTROMAGNETIC CIRCUIT BREAKER
RU152790U1 (en) * 2014-10-23 2015-06-20 Ирина Алексеевна Хатанова HIGH VOLTAGE FUSE FOR THE PROTECTION OF NONLINEAR SURFACE LIMITERS

Also Published As

Publication number Publication date
RU2649661C1 (en) 2018-04-05
GEP20217278B (en) 2021-07-26
EA036803B1 (en) 2020-12-22
MD4836C1 (en) 2023-06-30
MD20200005A2 (en) 2020-07-31
WO2019004876A1 (en) 2019-01-03
EA202090171A1 (en) 2020-04-21

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Legal Events

Date Code Title Description
FG4A Patent for invention issued