SU712498A1 - Apparatus for emergency disconnection of excavation area electric gear - Google Patents
Apparatus for emergency disconnection of excavation area electric gear Download PDFInfo
- Publication number
- SU712498A1 SU712498A1 SU782651699A SU2651699A SU712498A1 SU 712498 A1 SU712498 A1 SU 712498A1 SU 782651699 A SU782651699 A SU 782651699A SU 2651699 A SU2651699 A SU 2651699A SU 712498 A1 SU712498 A1 SU 712498A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- relay
- electric gear
- excavation area
- area electric
- contact
- Prior art date
Links
- 238000009412 basement excavation Methods 0.000 title 1
- 238000005065 mining Methods 0.000 claims 1
- 239000007858 starting material Substances 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 2
- 230000006735 deficit Effects 0.000 description 1
Landscapes
- Keying Circuit Devices (AREA)
Description
ключению коммутационных аппаратов. Размыкающий контакт 11 реле 6 и замыкающий контакт 12 реле 4, соединенные параллельно через диод 13, подключены к реле 14. Через контакт 12 осуществл етс питание схемы управлени . Реле 14 имеет задержку на отключение благодар конденсатору 15, шунтирующему реле 14. Контакт 16 реле 14 включен в цепь отключени группового автомата (АФВ) 17.switching off switching devices. The opening contact 11 of the relay 6 and the closing contact 12 of the relay 4, connected in parallel through the diode 13, are connected to the relay 14. The control circuit is powered through the contact 12. Relay 14 has a shut-off delay due to capacitor 15 shunting relay 14. Contact 16 of relay 14 is included in the circuit breaker of the group circuit breaker (AFV) 17.
Устройство работает следующим образом .The device works as follows.
При выключении реле 1 от кнонки 2 на пульте машиниста комбайна, обесточивании или коротком замыкании в цепп с реле 4 последнее отключает своим контактом 12 цепь питани схемы управлени всеми пускател ми , питающимис от группового фидерного автомата 17.When the relay 1 is disconnected from the button 2 on the operator’s console, de-energized or short-circuited in a chain-fed relay 4, the latter disconnects the power supply circuit of the control circuit of all starters 17 from the group feeder with its contact 12.
В случае, если какой-либо из пускателей пе выключитс , предусмотрена втора стади аварийного отключени потребителей. При этом реле 6 удерживаетс во включенном состо нии через параллельно соединенные блок-контакты 8, 9, 10 контакторов всех пускателей. Через замыкающий контакт 12, диод 13 и параллельно включенный размыкающий контакт 11 подаетс питание на реле 14. На врем выключени пускателей реле 14 имеет задержку на отключение посредством конденсатора 15. Отключение группового АФВ произойдет только тогда, когда хот бы один из пускателей не отключитс . При этом реле 6 остаетс включенным, а его контакт 11 разомкнут и реле 14 обесточиваетс , отключа контактом 16 групповой АФВ.In case any of the starters does not turn off, a second emergency shutdown stage is provided. In this case, the relay 6 is held in the on state through parallel-connected contact contacts 8, 9, 10 contactors of all starters. Through the closing contact 12, the diode 13 and the disconnected contact 11 connected in parallel, power is supplied to the relay 14. At the time that the starters are turned off, the relay 14 has a delay to turn off by means of a capacitor 15. A group of AFVs will turn off only when at least one of the starters does not turn off. In this case, the relay 6 remains on, and its contact 11 is open and the relay 14 is de-energized by disconnecting group 16 AFV by contact 16.
При такой системе аварийного отключени повышаетс срок службы и надежность в работе групповых автоматов, исключаютс услови , вынуждающие выводить изWith such an emergency shutdown system, the service life and reliability of the group automats are increased, conditions are excluded which force them to withdraw from
стро систему аварийного отключени . Отключени групповым автоматическим выключателем станов тс крайне редкими без какого-либо ущерба дл безопасности, групповые автоматы используютс более рационально, вплоть до сокращени их количества на участке.Emergency shutdown system. Circuit breaker trips become extremely rare without any safety impairment; group circuit breakers are used more efficiently, even reducing their number in the area.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782651699A SU712498A1 (en) | 1978-07-31 | 1978-07-31 | Apparatus for emergency disconnection of excavation area electric gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782651699A SU712498A1 (en) | 1978-07-31 | 1978-07-31 | Apparatus for emergency disconnection of excavation area electric gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU712498A1 true SU712498A1 (en) | 1980-01-30 |
Family
ID=20780092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU782651699A SU712498A1 (en) | 1978-07-31 | 1978-07-31 | Apparatus for emergency disconnection of excavation area electric gear |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU712498A1 (en) |
-
1978
- 1978-07-31 SU SU782651699A patent/SU712498A1/en active
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