MD3333B2 - Device for three-phase network control - Google Patents

Device for three-phase network control Download PDF

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Publication number
MD3333B2
MD3333B2 MDA20040129A MD20040129A MD3333B2 MD 3333 B2 MD3333 B2 MD 3333B2 MD A20040129 A MDA20040129 A MD A20040129A MD 20040129 A MD20040129 A MD 20040129A MD 3333 B2 MD3333 B2 MD 3333B2
Authority
MD
Moldova
Prior art keywords
phase network
network control
neutral wire
protection
sdoad
Prior art date
Application number
MDA20040129A
Other languages
Romanian (ro)
Russian (ru)
Other versions
MD20040129A (en
Inventor
Владимир УСЕНКО
Григоре КАЗАК
Original Assignee
Научно-Производственная Фирма "Stam" О.О.О.
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 Научно-Производственная Фирма "Stam" О.О.О. filed Critical Научно-Производственная Фирма "Stam" О.О.О.
Priority to MDA20040129A priority Critical patent/MD3333B2/en
Publication of MD20040129A publication Critical patent/MD20040129A/en
Publication of MD3333B2 publication Critical patent/MD3333B2/en

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  • Emergency Protection Circuit Devices (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

The invention relates to the commutation devices meant for man and animal protection from electrocution, as well as for protection from disconnection of one of the phases of the electrotechnical installations.The device contains a leakage current transducer (1), a preamplifier (2), a comparator (3), a time delay point (4), a thyristor-switch (5) and an interposing relay P2, all being coupled in series, connected to a three-phase network with neutral wire. Between the linear outputs of the device A2, B2, C2 and the neutral wire N there are additionally connected the resistors R1, R2, R3 of equal potential.<SDOAD>
MDA20040129A 2004-05-21 2004-05-21 Device for three-phase network control MD3333B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20040129A MD3333B2 (en) 2004-05-21 2004-05-21 Device for three-phase network control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20040129A MD3333B2 (en) 2004-05-21 2004-05-21 Device for three-phase network control

Publications (2)

Publication Number Publication Date
MD20040129A MD20040129A (en) 2005-12-31
MD3333B2 true MD3333B2 (en) 2007-05-31

Family

ID=35508798

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20040129A MD3333B2 (en) 2004-05-21 2004-05-21 Device for three-phase network control

Country Status (1)

Country Link
MD (1) MD3333B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD474Z (en) * 2011-06-17 2012-08-31 ИНСТИТУТ ЭЛЕКТРОННОЙ ИНЖЕНЕРИИ И НАНОТЕХНОЛОГИЙ "D. Ghitu" АНМ Accumulator switching and protection device
MD1221Y (en) * 2017-05-16 2017-12-31 Институт Энергетики Академии Наук Молдовы Process for connecting the alternating current electrical systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Контроллер сетевого питания КР1182СА1, Техническое описание, НЦП " СИТ ", Брянск, Россия, 1996 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD474Z (en) * 2011-06-17 2012-08-31 ИНСТИТУТ ЭЛЕКТРОННОЙ ИНЖЕНЕРИИ И НАНОТЕХНОЛОГИЙ "D. Ghitu" АНМ Accumulator switching and protection device
MD1221Y (en) * 2017-05-16 2017-12-31 Институт Энергетики Академии Наук Молдовы Process for connecting the alternating current electrical systems

Also Published As

Publication number Publication date
MD20040129A (en) 2005-12-31

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Legal Events

Date Code Title Description
KA4A Patent for invention lapsed due to non-payment of fees (with right of restoration)