SU610222A2 - Arrangement for overload protection of electric circuit - Google Patents
Arrangement for overload protection of electric circuitInfo
- Publication number
- SU610222A2 SU610222A2 SU772444645A SU2444645A SU610222A2 SU 610222 A2 SU610222 A2 SU 610222A2 SU 772444645 A SU772444645 A SU 772444645A SU 2444645 A SU2444645 A SU 2444645A SU 610222 A2 SU610222 A2 SU 610222A2
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- arrangement
- electric circuit
- overload protection
- relay
- current
- Prior art date
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Description
(54) УСТРОЙСТВО ДЛЯ ЗАЩИТЫ ЭЛЕКТРИЧЕСКОЙ ЦЕПИ ОТ ПЕРЕГРУЗОК(54) DEVICE FOR PROTECTION OF ELECTRIC CIRCUIT FROM OVERLOADS
етс и вводит в- работу ограничитель 3 тока, а замыкающий контакт шунтирует обмотку 6 реле. В момент размыкани размыкающего контакта начинаетс зар д конденсатора 7. Ток зар да конденсатора нротекает по обмотке 6 реле и тем самым предотвращает зуммер при малых токах перегрузки . Включение ограничител 3 тока в работу приводит к тому, что ток в цепи нагрузки уменьшаетс , причем напр жение на нагрузке 2 и на обмотке 5 реле резко уменьшаетс .A current limiter 3 is put into operation and a short-circuit contact bypasses the winding 6 of the relay. At the moment of opening of the disconnecting contact, the charge of the capacitor 7 starts. The charge current of the capacitor flows along the winding 6 of the relay and thus prevents the buzzer at low overload currents. When current limiter 3 is activated, the current in the load circuit decreases, and the voltage on load 2 and on the winding 5 of the relay decreases sharply.
После устранени неисправности восстанавливаюс номинальное i сопротивление и ток нагрузки, ток в цепи уменьшаетс , напр жение на нагрузке и обмтоке 5 реле возрастает, реле :возбуждаетс , его замьпсающий контакт размьпсаетс , и подаетс напр жение на обмотку 6 реле, а размыкающий контакт реле шунтирует огр гшчитель тока. -Схема возвращаетс в исходное состо ние.After elimination of the malfunction, the nominal i resistance and load current are restored, the current in the circuit decreases, the voltage on the load and the wiring 5 of the relay increases, the relay: energizes, its latching contact softens, and the voltage is applied to the winding 6 of the relay, and the relay contact shunts the limit gshchitel current. The circuit is returned to its original state.
Таким образом, предлагаемое устройство позвол ет устранить зуммер электромагнитного реле, тем самым повыша надежность срабатывани устройства защиты.Thus, the proposed device eliminates the buzzer of the electromagnetic relay, thereby increasing the reliability of the operation of the protection device.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772444645A SU610222A2 (en) | 1977-01-20 | 1977-01-20 | Arrangement for overload protection of electric circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772444645A SU610222A2 (en) | 1977-01-20 | 1977-01-20 | Arrangement for overload protection of electric circuit |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU396782 Addition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU610222A2 true SU610222A2 (en) | 1978-06-05 |
Family
ID=20692494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772444645A SU610222A2 (en) | 1977-01-20 | 1977-01-20 | Arrangement for overload protection of electric circuit |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU610222A2 (en) |
-
1977
- 1977-01-20 SU SU772444645A patent/SU610222A2/en active
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