SU616678A1 - Arrangement for protection of electric installation from failure of one or more phases - Google Patents

Arrangement for protection of electric installation from failure of one or more phases

Info

Publication number
SU616678A1
SU616678A1 SU772448609A SU2448609A SU616678A1 SU 616678 A1 SU616678 A1 SU 616678A1 SU 772448609 A SU772448609 A SU 772448609A SU 2448609 A SU2448609 A SU 2448609A SU 616678 A1 SU616678 A1 SU 616678A1
Authority
SU
USSR - Soviet Union
Prior art keywords
phases
protection
failure
arrangement
electric installation
Prior art date
Application number
SU772448609A
Other languages
Russian (ru)
Inventor
Анатолий Дмитриевич Замятин
Вячеслав Дмитриевич Золотов
Лев Дмитриевч Степанов
Original Assignee
Предприятие П/Я М-5489
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 Предприятие П/Я М-5489 filed Critical Предприятие П/Я М-5489
Priority to SU772448609A priority Critical patent/SU616678A1/en
Application granted granted Critical
Publication of SU616678A1 publication Critical patent/SU616678A1/en

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  • Power Conversion In General (AREA)
  • Emergency Protection Circuit Devices (AREA)

Description

(54 УСТРОЙСТВО ДЛЯ ЗАЩИТЫ ЭЛЕКТРОУСТАНОВКИ ОТ ПРОПАДАНИЯ OZlHOft И БОЛЕЕ ФАЗ выполненную на рористорах, иу ева  точка которой череэ лиод соединена с испопнитепквым э ементом  спопнительный элемент шлаопнен в виде последо вательно с диненвых.динвстора, допопнитель ого pesKCfopa и оптрона параллельно кагтарым подключен конденсатор. .. Схема устройства показана на чертеже.. ,.-,. Оно клеммы 1|2| 3 контро лн{7ем ( ч трехфазного напрашенв , выполненвую на резисторах 4, 5 6 звезду диод 7 исполнительный элемент 8, динистор 9« допо лннтепьный резистор 1О, опт рон 11 j конденсатор 12, земл ную 13 и выходщле 14, 15 клеммы. На 1-3 подаетс  контролируем мое тре фазаое на1фвжеиие. При наличии напр ж1енй  всех фаз напр жение в нулев Й тке авеэ ы близко к нушо. i QtoKpttTt в управл ющей шли оптрона ток отсутствует, фотодиод тнриогорногооптрона закрыт, JteHHcrop 9 искщ чает возможность срабатывани  устройства 1ФН flOiqrcTHMOM перекосе напр жени  фаз. Конденсатрр 12 исключает, возможность срабатывоти  устройства при вкппче н  контролируемого напр жени  п при- случайшлх краткотременшлх выбросах трздфазного-напр жейи , пропад НИИ одной или двух фаз в нулевой точке звезды по вл етс  переменное напр женнее, которое выпр мл етс  посредством 7, открывает динистор 9 и покупает в управл ющую цепь тиристорного оптро не 11, его фотодиод от1фываетс , что приводит к срабатыванию исполнитель ного элемента 8, .Применение в схеме тиристорного оптрона и динистора позвол ет исключить возможность срабатыв« ВИЯ зашиты от дотустимого перекоса фаз, обес1ючввает запоминание временного пропадани  фаз. Формул а из о б р е т е н и   Устройство дл  зашиты електрсустановки от пропадани  одной и более фаз, содержашее подключен1огю к ксжтролируе мым фаз актзвезду, выполненную на резисторах , нулева  точка которой через диод соединена и исполнительным элементом , о т л и ч а to ш е е с   тем, что, с велью повышени  надежности, улрм  тый исполнительный элемент выполнен в виде последовательно соединенных динисторов, дополнительного резистора и оптрона,параллельно которым подключен конденсатор.(54 DEVICE FOR PROTECTION OF ELECTRICAL AND LOSS OZlHOft more phases formed on roristorah, uy eva cheree liod point of which is connected to ispopnitepkvym e ementom spopnitelny shlaopnen element in the form of successively with dinenvyh.dinvstora, dopopnitel th pesKCfopa and photocoupler kagtarym parallel connected capacitor.. The circuit diagram of the device is shown in the drawing .., .-,. It has terminals 1 | 2 | 3 control {7em (three-phase supply voltage, made on resistors 4, 5 6 star diode 7 actuator 8, dynistor 9 "auxiliary resistor 1O opt p n 11 j capacitor 12, ground 13 and output terminals 14, 15. Terminals 1–3 are supplied to control my three phase ignition.When there is voltage across all the phases, the voltage is zero to zero, i QtoKpttTt in the control the optocoupler current is missing, the photodiode of the tricychodron is closed, the JteHHcrop 9 looks for the ability to operate the 1FN flOiqrcTHMOM device by bias of the phase voltage. A scientific research institute of one or two phases at the zero point of the star appears alternatingly stresses, which is rectified by means of 7, opens dynistor 9 and buys into the control circuit of the thyristor optro not 11, its photodiode turns off, which causes the actuator 8, The use of a thyristor optocoupler and a dynistor in the circuit makes it possible to exclude the possibility that the VIA is protected from the permissible phase mismatch, which ensures that the temporary phase loss is memorized. Formula of the device and the device for protection of the electrical installation from the loss of one or more phases, which is connected to the controllable phase of the star, made on the resistors, the zero point of which is connected through the diode and the actuating element This is due to the fact that, with the value of increasing reliability, the final executive element is designed as a series-connected dynistor, an additional resistor and an optocoupler, in parallel with which a capacitor is connected.

Г R

SU772448609A 1977-02-01 1977-02-01 Arrangement for protection of electric installation from failure of one or more phases SU616678A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772448609A SU616678A1 (en) 1977-02-01 1977-02-01 Arrangement for protection of electric installation from failure of one or more phases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772448609A SU616678A1 (en) 1977-02-01 1977-02-01 Arrangement for protection of electric installation from failure of one or more phases

Publications (1)

Publication Number Publication Date
SU616678A1 true SU616678A1 (en) 1978-07-25

Family

ID=20694071

Family Applications (1)

Application Number Title Priority Date Filing Date
SU772448609A SU616678A1 (en) 1977-02-01 1977-02-01 Arrangement for protection of electric installation from failure of one or more phases

Country Status (1)

Country Link
SU (1) SU616678A1 (en)

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