SU1757008A1 - Device for protection of ac electric installation against voltage decrease - Google Patents

Device for protection of ac electric installation against voltage decrease Download PDF

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Publication number
SU1757008A1
SU1757008A1 SU904893758A SU4893758A SU1757008A1 SU 1757008 A1 SU1757008 A1 SU 1757008A1 SU 904893758 A SU904893758 A SU 904893758A SU 4893758 A SU4893758 A SU 4893758A SU 1757008 A1 SU1757008 A1 SU 1757008A1
Authority
SU
USSR - Soviet Union
Prior art keywords
optocoupler
protection
resistor
electric installation
voltage decrease
Prior art date
Application number
SU904893758A
Other languages
Russian (ru)
Inventor
Олег Алексеевич Бурунин
Елена Серафимовна Московская
Original Assignee
Московский энергетический институт
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 Московский энергетический институт filed Critical Московский энергетический институт
Priority to SU904893758A priority Critical patent/SU1757008A1/en
Application granted granted Critical
Publication of SU1757008A1 publication Critical patent/SU1757008A1/en

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Description

дл  соецт ение с переменного тока, а выходна  диагональ - к цепи состо щей из двух последовательно соединенных ре- амсгпроч, стабилитрон, третий резистор, оптрон м конденсатор п т л ч а :о щ е е с   тем что, с ЦРЛЫО повышение надежности и точности срабатывачич введены второй оптрон , ключ А второй диодный мост, выходна  диагональ которого зашунгированаfor connection with alternating current, and the output diagonal is connected to a circuit consisting of two series-connected re- amps, a zener diode, a third resistor, an optocoupler, and a capacitor; Accuracy of the operation of the second optocoupler, key A, the second diode bridge, the diagonal of which is bridged

фоютмристором вюрого ompona p входна  через конденсатор подключена к клемме дл  соединени  с сетьюпеременного тока гзэтод1 оп впзрпго олтронэ черет встречно последо -слэч мо включенный сгабипчтрон г-одклю -iert параллельно резистору, а сэето диод первого олтроча через грегий рези стер м ключ вымочен согласно па дллсльно Фою1ирисюру второго оптронеThe futumistor of the wiry ompona p input is connected through a capacitor to a terminal for connecting to an alternating current network gt ethod1 op vprpogo oltrona lekt consistently followed by an ele- mentary modulator connected to the resistor, and the seto diode of the first altro patterned by the regimen of the regimento and the regimenter's regimen of the gymnastics of the alternating current and parallel to the resistor; The first picture of the second optocoupler

Claims (1)

Формула и з о б р е т е н и яClaim Устройство для защиты элек гроустановки переменного тока от понижения напряжения, содержащее диодный мост, входная диагональ которого подключена к клемме для соединения с сетью переменного тока, а выходная диагональ - к цепи, состоящей из двух последовательно соединенных резисторов, стабилитрон, третий резистор, оптрон и конденсатор, отличающееся 5 тем, что, с целью повышения надежности и точности срабатывания, введены второй оптрон, ключ и второй диодный мост, выходная диагональ которого зашунтирована фототиристором второго оптрона, а входная через конденсатор подключена к клемме для соединения с сетьюпеременного тока, светодиод второго оптрона через встречно последовательно включенный стабилитрон подключен параллельно резистору, а светодиод первого оптрона через третий резистор и ключ включен согласно параллельно фототиристору второго оптрона.A device for protecting AC electrical installations from undervoltage, comprising a diode bridge, the input diagonal of which is connected to a terminal for connection to an AC network, and the output diagonal is connected to a circuit consisting of two series-connected resistors, a zener diode, a third resistor, an optocoupler and a capacitor 5, characterized in that, in order to increase the reliability and accuracy of operation, a second optocoupler, a key and a second diode bridge are introduced, the output diagonal of which is shunted by the photo thyristor of the second optocoupler, and the input through the capacitor is connected to the terminal for connecting to the alternating current network, the LED of the second optocoupler is connected in parallel with the zener diode in parallel with the resistor, and the LED of the first optocoupler through the third resistor and key is turned on in accordance with the photo-thyristor of the second optocoupler.
SU904893758A 1990-12-25 1990-12-25 Device for protection of ac electric installation against voltage decrease SU1757008A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU904893758A SU1757008A1 (en) 1990-12-25 1990-12-25 Device for protection of ac electric installation against voltage decrease

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU904893758A SU1757008A1 (en) 1990-12-25 1990-12-25 Device for protection of ac electric installation against voltage decrease

Publications (1)

Publication Number Publication Date
SU1757008A1 true SU1757008A1 (en) 1992-08-23

Family

ID=21551669

Family Applications (1)

Application Number Title Priority Date Filing Date
SU904893758A SU1757008A1 (en) 1990-12-25 1990-12-25 Device for protection of ac electric installation against voltage decrease

Country Status (1)

Country Link
SU (1) SU1757008A1 (en)

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