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SU1279009A1 - Device for protection of three-phase using equipment against phase loss - Google Patents

Device for protection of three-phase using equipment against phase loss Download PDF

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Publication number
SU1279009A1
SU1279009A1 SU843780004A SU3780004A SU1279009A1 SU 1279009 A1 SU1279009 A1 SU 1279009A1 SU 843780004 A SU843780004 A SU 843780004A SU 3780004 A SU3780004 A SU 3780004A SU 1279009 A1 SU1279009 A1 SU 1279009A1
Authority
SU
USSR - Soviet Union
Prior art keywords
output
phase
rectifier
thyristor
closing contact
Prior art date
Application number
SU843780004A
Other languages
Russian (ru)
Inventor
Владислав Григорьевич Вохмянин
Original Assignee
Vokhmyanin Vladislav G
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 Vokhmyanin Vladislav G filed Critical Vokhmyanin Vladislav G
Priority to SU843780004A priority Critical patent/SU1279009A1/en
Application granted granted Critical
Publication of SU1279009A1 publication Critical patent/SU1279009A1/en

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Abstract

Изобретение относитс  к электротехнике и предназначено дл  защиты трехфазных потребителей от обрыва фазы в электросет х . Цель изобретени  - повышение надежности , путем исключени  ложных срабатываний от кратковременных к.з. в прилегающих участках фаз сети и перерывов питани . При кратковременном исчезновении питающего напр жени  тиристор 5 выключаетс . Если за врем  перерыва питани  силовые контакты 2 магнитного пускател  не разомкнулись , после по влени  питающего напр жени  тиристор 5 автоматически включитс  под воздействием управл ющего тока, про текающего через конденсатор 11, при этом (Л потребитель удерживаетс  во включенном состо нии. 1 ил. ОThe invention relates to electrical engineering and is intended to protect three-phase consumers from phase failure in the electrical grid x. The purpose of the invention is to increase reliability by eliminating false positives from short-term short-circuit. in adjacent areas of the network phases and power interruptions. When the supply voltage disappears for a short time, the thyristor 5 is turned off. If during the power interruption the power contacts 2 of the magnetic starter did not open, after the supply voltage appears, the thyristor 5 automatically turns on under the influence of the control current flowing through the capacitor 11, while (L the consumer is kept in the on state. 1 ill. O

Description

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Claims (1)

Формула изобретени  Устройство дл  защиты трехфазного потребител  от обрыва фазы, содержащее трехфазный однополупериодный первый выпр митель , входами подключенный к силовым контактам магнитного пускател  на стороне потребител , а выходом - к аноду тиристора , управл юшим электродом подключенного к первому выводу резистора, второйThe invention The device for protection of a three-phase consumer against phase failure, containing a three-phase half-wave first rectifier, with inputs connected to the power contacts of the magnetic actuator on the consumer side, and output to the thyristor anode, controlled by an electrode connected to the first output of the resistor, the second вывод которого соединен с первым выводом первого замыкающего контакта кнопки «Пуск, выполненной двухконтактной, трехфазный однополупериодный второй выпр митель , кнопку «Стоп с одним размыкаюшим контактом, первый вывод которогоthe output of which is connected to the first output of the first closing contact of the Start button, performed by a two-pin, three-phase half-wave second rectifier, the button Stop with one open contact, the first output of which соединен с катодом тиристора, а второй - с первым выводом обмотки магнитного пускател , вторым выводом подключенной к нулевому проводу сети, отличающеес  тем, что, с целью повышени  эксплуатационной надежности путем исключени  ложных срабатываний зашиты от кратковременных коротких замыканий в прилегаюших участ- к ах фаз сети и перерывов питани , в него дополнительно введены конденсатор, включенный параллельно первому замыкающему контакту кнопки «Пуск, и диод, анодом подключенный к выходу первого выпр мител , а катодом - к второму выводу первого замыкающего контакта кнопки «Пуск, второй замыкающий контакт которой одним выводом соединен с выходом первого выпр мител , а другим - с выходом второго выпр мител , входы которого подключены к силовым контактам магнитного пускател  со стороны источника питани .connected to the thyristor cathode, and the second to the first output of the magnetic starter winding, the second output of the network connected to the neutral wire, characterized in that, in order to increase operational reliability by eliminating false positives, protection against short-term short circuits in the adjacent sections of the network phases and power interruptions; a capacitor connected in parallel with the first closing contact of the Start button and a diode connected by an anode to the output of the first rectifier, and the cathode to the second output are additionally introduced into it; At the first closing contact of the Start button, the second closing contact of which is connected by one output to the output of the first rectifier, and the other to the output of the second rectifier, whose inputs are connected to the power contacts of the magnetic actuator on the side of the power supply.
SU843780004A 1984-08-13 1984-08-13 Device for protection of three-phase using equipment against phase loss SU1279009A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU843780004A SU1279009A1 (en) 1984-08-13 1984-08-13 Device for protection of three-phase using equipment against phase loss

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU843780004A SU1279009A1 (en) 1984-08-13 1984-08-13 Device for protection of three-phase using equipment against phase loss

Publications (1)

Publication Number Publication Date
SU1279009A1 true SU1279009A1 (en) 1986-12-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU843780004A SU1279009A1 (en) 1984-08-13 1984-08-13 Device for protection of three-phase using equipment against phase loss

Country Status (1)

Country Link
SU (1) SU1279009A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2242071C1 (en) * 2003-09-03 2004-12-10 Дятлов Ротефан Николаевич Supply mains disconnecting switch for overvoltage protection of loads

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 783904, кл. Н 02 Н 7/08, 1978. Авторское свидетельство СССР № 811391, кл. Н 02 Н 7/08, 1981. Авторское свидетельство СССР № 904079, кл. Н 02 Н 7/08, 1982. ABC *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2242071C1 (en) * 2003-09-03 2004-12-10 Дятлов Ротефан Николаевич Supply mains disconnecting switch for overvoltage protection of loads

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