SU382026A1 - DEVICE FOR MONITORING FAILURES OF FORCES - Google Patents

DEVICE FOR MONITORING FAILURES OF FORCES

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Publication number
SU382026A1
SU382026A1 SU1442667A SU1442667A SU382026A1 SU 382026 A1 SU382026 A1 SU 382026A1 SU 1442667 A SU1442667 A SU 1442667A SU 1442667 A SU1442667 A SU 1442667A SU 382026 A1 SU382026 A1 SU 382026A1
Authority
SU
USSR - Soviet Union
Prior art keywords
contacts
forces
relay
circuit
current
Prior art date
Application number
SU1442667A
Other languages
Russian (ru)
Inventor
А. В. Опенько В. Г. Смирнов И. Т. Заставной И. Г. Линев
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 SU1442667A priority Critical patent/SU382026A1/en
Application granted granted Critical
Publication of SU382026A1 publication Critical patent/SU382026A1/en

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  • Keying Circuit Devices (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Description

1one

Известны устройства дл  контрол  отказов силовых контактов, контакторов и реле, коммутирующих цепи переменного тока, состо щие из нагрузочных элементов, трансформаторов тока, элементов контрол  и схемы управлени .Devices are known for monitoring failures of power contacts, contactors, and relays switching AC circuits, consisting of load elements, current transformers, control elements, and a control circuit.

Однако известные устройства не позвол ют увеличить количество исследуемых контактов.However, the known devices do not allow an increase in the number of contacts studied.

С целью увеличени  количества исследуемых контактов в предлагаемом устройстве трансформаторы тока включены по дифференциальной схеме и параллельно им включены элементы контрол .In order to increase the number of contacts in the proposed device, current transformers are connected in a differential circuit and control elements are connected in parallel with them.

На фиг. 1 представлена принципиальна  силова  схема предлагаемого устройства; на фиг. 2 - принципиальна  схема управлени  устройства.FIG. 1 shows the principle of the power circuit of the proposed device; in fig. 2 is a circuit diagram of the control device.

Устройство содержит блоки /-6 нагрузочных элементов сопротивлений дл  имитации параметров коммутируемых цепей, трансформаторы 7-12 тока, токовые реле 13-15, контакты 16-21 исследуемых контакторов, контактор 22 питани  силовой цепи переменного тока, сигнальные лампы 23-25, добавочные сопротивлени  26, реле 27 останова, звуковую сигнализацию 28 и контактор 29 линейного питани  блока управлени .The device contains –6 units of load resistance elements to simulate the parameters of switched circuits, current transformers 7–12, current relays 13–15, contacts 16–21 of the contactors under study, AC power circuit contactor 22, signal lamps 23–25, additional resistances 26, the stop relay 27, the audible alarm 28 and the linear power contactor 29 of the control unit.

Исследуемые силовые контакты контакторов (реле) включаютс  в параллельные ветвиTest contactors (relays) power contacts are included in parallel branches.

блоков /-6, цепи последних коммутируютс  контактами. При нормальной работе по обеим ветв м, в которых установлены, например, трансформаторы 1 и 2 тока, протекают токиblocks / -6, the circuits of the latter are switched by contacts. During normal operation, both branches, in which, for example, current transformers 1 and 2 are installed, flow currents

(/, /2). Во вторичных обмотках трансформаторов тока наводитс  э.д.с. (); так как оба трансформаторы включены встречно, то напр жение на зажимах катушки токового реле 13 равно нулю, и реле не(/, / 2). In the secondary windings of current transformers induced emf. (); since both transformers are switched on, the voltage at the terminals of the coil of the current relay 13 is zero, and the relay is not

срабатывает. При незамыкании или неразмыкании одного из двух контактов одного из трансформаторов э.д.с. равн етс  нулю (1 0), а на другом она не равн етс  нулю (). На катушке токового реле 13 по вл етс  напр жение ( -Л). Реле срабатывает и подает сигнал об отказе (замыкаетс  контакт 30), включаетс  лампа 23 и подаетс  питание на катушку реле останова. Автоматически фиксируетс  отказ, схема останавливаетс . Измен   уставку реле, можно в широком диапазоне мен ть чувствительность схемы.it works. When not uncoupling or disconnecting one of the two contacts of one of the EMF transformers equals zero (1 0), and on the other it is non-zero (). On the coil of the current relay 13, a voltage (-L) appears. The relay triggers and sends a fault signal (contact 30 is closed), lamp 23 is turned on and power is applied to the stop relay coil. The failure is automatically detected, the circuit is stopped. By changing the relay setting, it is possible to change the sensitivity of the circuit in a wide range.

25Предмет изобретени 25 of the invention

Устройство дл  контрол  отказов силовых контактов, контакторов и реле, коммутирующих цепи переменного тока, состо щее из на30 грузочных элементов, трансформаторов тока.A device for monitoring failures of power contacts, contactors and relays that switch alternating current circuits, consisting of 30 load cells, current transformers.

элементов контрол  и схемы управлени , отличающеес  тем, что, с целью увеличени  количества исследуемых контактов, трансформаторы тока включены по дифференциальной схеме и параллельно им включены элементы контрол .control elements and control circuits, characterized in that, in order to increase the number of contacts under study, current transformers are connected in a differential circuit and control elements are connected in parallel with them.

Фиг. 1FIG. one

SU1442667A 1970-05-21 1970-05-21 DEVICE FOR MONITORING FAILURES OF FORCES SU382026A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1442667A SU382026A1 (en) 1970-05-21 1970-05-21 DEVICE FOR MONITORING FAILURES OF FORCES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1442667A SU382026A1 (en) 1970-05-21 1970-05-21 DEVICE FOR MONITORING FAILURES OF FORCES

Publications (1)

Publication Number Publication Date
SU382026A1 true SU382026A1 (en) 1973-05-22

Family

ID=20453389

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1442667A SU382026A1 (en) 1970-05-21 1970-05-21 DEVICE FOR MONITORING FAILURES OF FORCES

Country Status (1)

Country Link
SU (1) SU382026A1 (en)

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