SU634391A1 - Device for short time holding of electromagnetic relay - Google Patents
Device for short time holding of electromagnetic relayInfo
- Publication number
- SU634391A1 SU634391A1 SU772486091A SU2486091A SU634391A1 SU 634391 A1 SU634391 A1 SU 634391A1 SU 772486091 A SU772486091 A SU 772486091A SU 2486091 A SU2486091 A SU 2486091A SU 634391 A1 SU634391 A1 SU 634391A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- relay
- short time
- electromagnetic relay
- contact
- time holding
- Prior art date
Links
Landscapes
- Relay Circuits (AREA)
Description
но включенных замыкающего контакта реле и конденсатора, шунтированного резистором, включенную параллельно пусковому контакту , введены диод и дополнительный резистор , причем катод указанного диода подключен к точке соединени пускового контакта и обмотки реле, а анод диода подключен к точке соединени конденсатора и дополнительного резистора, другой вывод которого соединен с отрицательным полюсом источника питани .but a closing contact of the relay and a capacitor shunted by a resistor, connected in parallel with the starting contact, a diode and an additional resistor are inserted, the cathode of the indicated diode is connected to the junction point of the starting contact and the relay winding, and the anode of the diode is connected to the junction point of the capacitor and the additional resistor, another output which is connected to the negative pole of the power source.
На чертеже дана структурна схема устройства дл кратковременного удерживани электромагнитного реле.The drawing shows a block diagram of a device for briefly holding an electromagnetic relay.
Оно включает в себ пусковой контакт 1, подключенный к одному полюсу источника питани , обмотку реле 2, замыкающий контакт 3 этого реле, последовательно с которым включен конденсатор 4, щунтированный резистором 5. Обща точка контакта 1 и реле 2 через диод 6 подключена к конденсатору , а его анод через резистор 7 подключен к другому полюсу источника питани .It includes a starting contact 1 connected to the same pole of the power supply, a relay coil 2, a closing contact 3 of this relay, in series with which a capacitor 4 connected by a resistor 5 is connected. The common point of contact 1 and the relay 2 are connected via a diode 6 to the capacitor and its anode through a resistor 7 is connected to the other pole of the power source.
Работает устройство следующим образом .The device works as follows.
При замыкании контакта 1 срабатывает реле 2 и после замыкани контакта 3 конденсатор 4 начинает зар жатьс через резистор 7. При этом диод 6 остаетс закрытым. Если через малое врем после срабатывани реле 2 контакт 1 под вли нием сотр сени или по какой-либо другой причине кратковременно разомкнетс , то реле 2 удерживает через контакт 3 конденсатор 4 и диод 6, который в этом режиме открываетс .When contact 1 is closed, relay 2 is activated and after contact 3 is closed, capacitor 4 starts charging through resistor 7. At the same time, diode 6 remains closed. If after a short time after the relay 2 trips, contact 1 is briefly opened due to the influence of the drive or for any other reason, then the relay 2 holds capacitor 4 through pin 3 and diode 6, which opens in this mode.
После зар да конденсатора 4 до напр жени , близкого к напр жению питани , при размыкании контакта 1 ток в обмотке реле 2 не поддерживаетс . После возвратаAfter charging the capacitor 4 to a voltage close to the supply voltage, when contact 1 is opened, the current in the winding of relay 2 is not maintained. After return
реле 2 конденсатор 4 разр жаетс через резистор 5.relay 2 capacitor 4 is discharged through resistor 5.
Использование предложенного изобретени способствует улучщению селективности устройгств релейной защиты, повыщению динамической устойчивости энергосистем и уменьшению возможных разрушений электрических аппаратов при их повреждени х.The use of the proposed invention contributes to improving the selectivity of relay protection devices, enhancing the dynamic stability of power systems and reducing possible damage to electrical devices when they are damaged.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772486091A SU634391A1 (en) | 1977-05-18 | 1977-05-18 | Device for short time holding of electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772486091A SU634391A1 (en) | 1977-05-18 | 1977-05-18 | Device for short time holding of electromagnetic relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU634391A1 true SU634391A1 (en) | 1978-11-25 |
Family
ID=20709043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772486091A SU634391A1 (en) | 1977-05-18 | 1977-05-18 | Device for short time holding of electromagnetic relay |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU634391A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4758918A (en) * | 1986-12-12 | 1988-07-19 | Syndergeneral Corporation | Advanced latching circuit |
-
1977
- 1977-05-18 SU SU772486091A patent/SU634391A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4758918A (en) * | 1986-12-12 | 1988-07-19 | Syndergeneral Corporation | Advanced latching circuit |
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