SU387480A1 - DEVICE FOR CHANGING THE CHARACTERISTICS OF REMOTE VOTERS - Google Patents

DEVICE FOR CHANGING THE CHARACTERISTICS OF REMOTE VOTERS

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Publication number
SU387480A1
SU387480A1 SU1605767A SU1605767A SU387480A1 SU 387480 A1 SU387480 A1 SU 387480A1 SU 1605767 A SU1605767 A SU 1605767A SU 1605767 A SU1605767 A SU 1605767A SU 387480 A1 SU387480 A1 SU 387480A1
Authority
SU
USSR - Soviet Union
Prior art keywords
remote
current
changing
voters
thyristor
Prior art date
Application number
SU1605767A
Other languages
Russian (ru)
Inventor
К. А. Бринкис Ю. И. Озолиньш Л. Е. Эйгус Л. Б. Паперно
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 filed Critical
Priority to SU1605767A priority Critical patent/SU387480A1/en
Application granted granted Critical
Publication of SU387480A1 publication Critical patent/SU387480A1/en

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Description

1one

Известные дистанционные избиратели однофазного автоматического повторного включени  содержат трехобмоточный трансформатор тока, дистанционные избирательные органы , выполненные с номощью направленных реле сопротивлений, сопротивление срабатывани  которых определ етс  уравнениемThe known remote selectors of a single-phase automatic reclosing contain a three-winding current transformer, remote electoral authorities, made with the aid of directional resistance relays, the tripping resistance of which is determined by the equation

7 .-- 7 .--

/Ф+АГЗ/о  / F + AO / o

где /ф - фазное напр жение; /Ф - фазный ток;where f is the phase voltage; / F - phase current;

3/0 - ток в нулевом лроводе трансформаторов тока;3/0 - current in the neutral wire of current transformers;

/С-коэффициент учитывающий отношение эквнвалентных сопротивлений пр мой и нулевой последовательностей в расчетной схеме замещени ;The C-coefficient takes into account the ratio of the equivalent resistances of the direct and zero sequences in the calculated replacement circuit;

ZP - сопротивление на зажимах дистанционного избирател .ZP - resistance at the terminals of a remote voter.

Известно, что при больших токах нулевой последовательности могут срабатывать дистанционные избиратели неповрежденных фаз из-за составл ющей К31о в указанном уравнении .It is known that at high currents of the zero sequence, remote selectors of intact phases can be triggered due to the component K31o in the indicated equation.

Дл  исключени  ложного срабатывани  дистанционных избирателей неповрежденных фаз при относительно больших токах и дл  обеспечени  более высокой чувствительностиTo eliminate the false triggering of remote voters of intact phases at relatively high currents and to provide higher sensitivity

поврежденной фазы при относительно небольших токах в нулевом проводе трансформаторов тока в предлол енном устройстве обмотки дистадционных избирателей по току нулевой последовательности через симметричный тиристор подключены к одной вторичной обмотке трехобмоточного трансформатора тока , а схема управлени  тиристором подключена через блокирующий транзистор и схемуdamaged phase with relatively small currents in the neutral conductor of current transformers in a predlozhenny device for winding distortion voters with zero-sequence current through a symmetrical thyristor connected to one secondary winding of a three-winding current transformer, and the thyristor control circuit is connected through a blocking transistor and circuit

его управлени  к другой вторичной обмотке трансформатора тока.control it to the other secondary winding of the current transformer.

В предлагаемом устройстве ори относительно больших токах в нулевом проводе трансформаторов тока, составл юща  К З/о исключаетс , т. е. симметричный тиристор размыкает токовую цепь нулевой последовательности дистанционного избирател , а коэффициент К выбираетс  большим единицы, и при относительно небольших токах в нулевом проводеIn the proposed device, ori relatively large currents in the neutral conductor of current transformers, the component К З / о is excluded, i.e., a symmetrical thyristor opens the zero sequence current circuit of the remote voter, and the coefficient K is chosen as a large unit, and at relatively small currents in the neutral conductor

трансформаторов тока симметричный тиристор остаетс  открытым.current transformer symmetric thyristor remains open.

На чертеже показана схема устройства. Обмотки дистанционных избирателей по току нулевой последовательности 1, 2, 3 через симметричный тиристор 4 подключены к одной вторичной обмотке трехобмоточного трансформатора тока 5. Схема управлени  (импульсный генератор) 6 тиристором 4 через блокирующий транзистор 7, шунтирующий диод 8, стабилитрон 9, фильтр высшихThe drawing shows a diagram of the device. The windings of remote voters on current zero-sequence 1, 2, 3 through symmetrical thyristor 4 are connected to one secondary winding of three-winding current transformer 5. Control circuit (pulse generator) 6 by thyristor 4 through blocking transistor 7, shunt diode 8, Zener diode 9, higher filter

SU1605767A 1971-01-04 1971-01-04 DEVICE FOR CHANGING THE CHARACTERISTICS OF REMOTE VOTERS SU387480A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1605767A SU387480A1 (en) 1971-01-04 1971-01-04 DEVICE FOR CHANGING THE CHARACTERISTICS OF REMOTE VOTERS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1605767A SU387480A1 (en) 1971-01-04 1971-01-04 DEVICE FOR CHANGING THE CHARACTERISTICS OF REMOTE VOTERS

Publications (1)

Publication Number Publication Date
SU387480A1 true SU387480A1 (en) 1973-06-21

Family

ID=20462524

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1605767A SU387480A1 (en) 1971-01-04 1971-01-04 DEVICE FOR CHANGING THE CHARACTERISTICS OF REMOTE VOTERS

Country Status (1)

Country Link
SU (1) SU387480A1 (en)

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