RU97116937A - CURRENT PROTECTION DEVICE FOR DC CIRCUITS - Google Patents

CURRENT PROTECTION DEVICE FOR DC CIRCUITS

Info

Publication number
RU97116937A
RU97116937A RU97116937/09A RU97116937A RU97116937A RU 97116937 A RU97116937 A RU 97116937A RU 97116937/09 A RU97116937/09 A RU 97116937/09A RU 97116937 A RU97116937 A RU 97116937A RU 97116937 A RU97116937 A RU 97116937A
Authority
RU
Russia
Prior art keywords
resistor
transistor
circuits
protection device
terminal
Prior art date
Application number
RU97116937/09A
Other languages
Russian (ru)
Other versions
RU2124257C1 (en
Inventor
В.В. Кочетков
С.И. Еремин
Б.И. Чванов
Original Assignee
Акционерное общество закрытого типа "Контактор"
Filing date
Publication date
Application filed by Акционерное общество закрытого типа "Контактор" filed Critical Акционерное общество закрытого типа "Контактор"
Priority to RU97116937A priority Critical patent/RU2124257C1/en
Priority claimed from RU97116937A external-priority patent/RU2124257C1/en
Application granted granted Critical
Publication of RU2124257C1 publication Critical patent/RU2124257C1/en
Publication of RU97116937A publication Critical patent/RU97116937A/en

Links

Claims (1)

Устройство токовой защиты для цепей постоянного тока, содержащее управляющий блок защиты, к входу которого подключен выход измерительного элемента, к выходу - электромагнитный расцепитель, а к цепям питания - выходы блока питания, включающего в себя диодный мост, одна диагональ которого является входом блока питания и подключена к шинам защищаемой цепи, другая диагональ - к первым выводам первого резистора и стабилитрона, а первый и второй выводы стабилитрона являются выходами блока питания, отличающееся тем, что в него дополнительно ведены два транзистора и резистор, коллектор первого транзистора подключен к первому выводу первого резистора, база - к второму выводу первого резистора и к коллектору второго транзистора, эмиттер первого транзистора соединен с базой второго транзистора и с первым выводом второго резистора, а эмиттер второго транзистора - с вторыми выводами второго резистора и стабилитрона.An overcurrent protection device for DC circuits, containing a control protection unit, to the input of which the output of the measuring element is connected, to the output is an electromagnetic release, and to the power circuits are the outputs of the power supply unit, which includes a diode bridge, one diagonal of which is the input of the power supply unit and connected to the tires of the circuit to be protected, the other diagonal to the first terminals of the first resistor and zener diode, and the first and second terminals of the zener diode are outputs of the power supply, characterized in that it additionally leads there are two transistors and a resistor, the collector of the first transistor is connected to the first terminal of the first resistor, the base is connected to the second terminal of the first resistor and the collector of the second transistor, the emitter of the first transistor is connected to the base of the second transistor and to the first terminal of the second resistor, and the emitter of the second transistor is connected to the second conclusions of the second resistor and zener diode.
RU97116937A 1997-10-14 1997-10-14 Overcurrent protective device for dc circuits RU2124257C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU97116937A RU2124257C1 (en) 1997-10-14 1997-10-14 Overcurrent protective device for dc circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU97116937A RU2124257C1 (en) 1997-10-14 1997-10-14 Overcurrent protective device for dc circuits

Publications (2)

Publication Number Publication Date
RU2124257C1 RU2124257C1 (en) 1998-12-27
RU97116937A true RU97116937A (en) 1999-02-27

Family

ID=20197982

Family Applications (1)

Application Number Title Priority Date Filing Date
RU97116937A RU2124257C1 (en) 1997-10-14 1997-10-14 Overcurrent protective device for dc circuits

Country Status (1)

Country Link
RU (1) RU2124257C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108879623B (en) * 2018-06-13 2020-06-05 南京南瑞继保电气有限公司 Multi-voltage-level direct current network system and control protection method

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