RU2001112954A - Device for protecting electrical circuits - Google Patents

Device for protecting electrical circuits

Info

Publication number
RU2001112954A
RU2001112954A RU2001112954/09A RU2001112954A RU2001112954A RU 2001112954 A RU2001112954 A RU 2001112954A RU 2001112954/09 A RU2001112954/09 A RU 2001112954/09A RU 2001112954 A RU2001112954 A RU 2001112954A RU 2001112954 A RU2001112954 A RU 2001112954A
Authority
RU
Russia
Prior art keywords
outputs
control unit
overload control
electrical circuits
inputs
Prior art date
Application number
RU2001112954/09A
Other languages
Russian (ru)
Other versions
RU2212085C2 (en
Inventor
Владимир Исакович Степанов
Анастасия Владимировна Степанова
Original Assignee
Омский государственный технический университет
Filing date
Publication date
Application filed by Омский государственный технический университет filed Critical Омский государственный технический университет
Priority to RU2001112954A priority Critical patent/RU2212085C2/en
Priority claimed from RU2001112954A external-priority patent/RU2212085C2/en
Publication of RU2001112954A publication Critical patent/RU2001112954A/en
Application granted granted Critical
Publication of RU2212085C2 publication Critical patent/RU2212085C2/en

Links

Claims (1)

Устройство для защиты электрических цепей, содержащее датчик тока для подключения в разные фазы питания электрической цепи, блок контроля перегрузки, входы которого подключены к выходам датчика тока и тепловой имитатор электрической цепи, входы которого подключены к выходам блока контроля перегрузки, а выходы через компаратор - к входам исполнительного реле, отличающееся тем, что блок контроля перегрузки выполнен в виде делителя напряжения на резисторе и полевом транзисторе с управляющим р-n переходом, затвор и исток которого соединены между собой, а клеммы, с которыми соединены сток и исток транзистора, образуют выходы блока контроля перегрузки.A device for protecting electrical circuits, containing a current sensor for connecting to different phases of the power supply of the electric circuit, an overload control unit, the inputs of which are connected to the outputs of the current sensor and a thermal simulator of the electric circuit, the inputs of which are connected to the outputs of the overload control unit, and the outputs through the comparator to the inputs of the executive relay, characterized in that the overload control unit is made in the form of a voltage divider on the resistor and field effect transistor with a pn junction, the gate and source of which are connected between each other, and the terminals to which the drain and the source of the transistor are connected form the outputs of the overload control unit.
RU2001112954A 2001-05-10 2001-05-10 Gear to protect electric networks RU2212085C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2001112954A RU2212085C2 (en) 2001-05-10 2001-05-10 Gear to protect electric networks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2001112954A RU2212085C2 (en) 2001-05-10 2001-05-10 Gear to protect electric networks

Publications (2)

Publication Number Publication Date
RU2001112954A true RU2001112954A (en) 2003-05-20
RU2212085C2 RU2212085C2 (en) 2003-09-10

Family

ID=29776701

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2001112954A RU2212085C2 (en) 2001-05-10 2001-05-10 Gear to protect electric networks

Country Status (1)

Country Link
RU (1) RU2212085C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2565497C1 (en) * 2014-12-18 2015-10-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Уральский государственный университет" (национальный исследовательский университет) (ФГБОУ ВПО "ЮУрГУ" (НИУ)) Ac voltage stabiliser
CN111327021B (en) * 2020-03-31 2022-04-19 广东中鹏电气有限公司 Overload protection method for high-overload transformer

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