SU363154A1 - YOSCHOYUNA? - Google Patents
YOSCHOYUNA?Info
- Publication number
- SU363154A1 SU363154A1 SU1485355A SU1485355A SU363154A1 SU 363154 A1 SU363154 A1 SU 363154A1 SU 1485355 A SU1485355 A SU 1485355A SU 1485355 A SU1485355 A SU 1485355A SU 363154 A1 SU363154 A1 SU 363154A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- motor
- relay
- intermediate relay
- temperature sensors
- circuit
- Prior art date
Links
Landscapes
- Protection Of Generators And Motors (AREA)
Description
1one
Изобретение касаетс защиты электродвигателей от перегрузки.The invention relates to protection of motors against overload.
Известны устройства дл защиты асинхронного электродвигател , содержащие температурные датчики в каждой фазе, встроенные в корнус электродвигател промежуточное реле и стабилизированный выпр митель.There are known devices for protecting an asynchronous electric motor, which contain temperature sensors in each phase, an intermediate relay and a stabilized rectifier built into the corns of the electric motor.
Целью изобретени вл етс осуществление защиты от нарушени заземлени электродвигател .The aim of the invention is to provide protection against motor ground failure.
Дл этого в предложенном устройстве темпсфатурные датчики соединены последовательно и подключены между корпусом двигател и промежуточным реле.To do this, in the proposed device, the temperature sensors are connected in series and connected between the motor housing and the intermediate relay.
На чертеже представлена электрическа схема предложеппого устройства дл защиты асинхронного электродвигател .The drawing shows the electrical circuit of the proposed device for protecting an asynchronous motor.
Устройство содержит три .последовательно соединенных температурных датчика I, подключенных между корпусом электродвигател 2 и промежуточным реле 3, которое через сопротивление 4, диод 5 и пусковую кнопку подключено к фазному проводу питающей сети . Контакт 6 реле 3 подключен к цепи отключающей катущки 7 магнитного пускател . Между нейтралью электродвигател и обмоткой промежуточного реле 3 присоединенThe device contains three successively connected temperature sensors I connected between the case of the electric motor 2 and the intermediate relay 3, which through the resistance 4, diode 5 and the start button is connected to the phase conductor of the supply network. Pin 6 of the relay 3 is connected to the circuit of the tripping coil 7 of the magnetic starter. Between the neutral of the electric motor and the winding of the intermediate relay 3 is connected
стабилизированный вьшр митель, состо щий из стабилитронов 8 п емкости 9.a stabilizer superior consisting of 8-capacitance zener diodes 9.
В аварийном режиме, когда температура обмоток превышает предельно допустимую, сопротивление температурных датчиков / резко возрастает, ток в цепи реле 3 уменьщаетс до отпускани и реле 3 размыкает свои контакты 6 в цепи отключающей катушки 7 магнитного пускател .In emergency mode, when the temperature of the windings exceeds the maximum permissible temperature sensor resistance / increases sharply, the current in the circuit of relay 3 decreases before release and the relay 3 opens its contacts 6 in the circuit of the tripping coil 7 of the magnetic starter.
При нарушении заземлени корпуса электродвигател или при обрыве проводника, соедин ющего датчики / со схемой защиты, реле 3 обесточиваетс , и э.1ектродвигатель отключаетс .If the motor case is not grounded or if the conductor connecting the sensors / with the protection circuit is broken, the relay 3 is de-energized and the electric motor is switched off.
Предмет изобретени Subject invention
Устройство дл защиты асии.хронного электродвигател от перегрузки, содержащее температурные датчики в каждой фазе, встроенные в корпус электродвигател , промежуточное реле и стабилизированный выпр митель, отличающеес тем, что, с целью осуществлени защиты от нарушени заземлени электродвигател , температурные датчики соединены последовательно и .подключены между корпусом двигател и промежуточным реле.A device for protection of an asii-synchronous motor against overload, containing temperature sensors in each phase, built into the motor housing, an intermediate relay and a stabilized rectifier, characterized in that, in order to protect the motor against grounding, the temperature sensors are connected in series and connected. between the motor housing and the intermediate relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1485355A SU363154A1 (en) | 1970-11-02 | 1970-11-02 | YOSCHOYUNA? |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1485355A SU363154A1 (en) | 1970-11-02 | 1970-11-02 | YOSCHOYUNA? |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU363154A1 true SU363154A1 (en) | 1972-12-30 |
Family
ID=20458758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1485355A SU363154A1 (en) | 1970-11-02 | 1970-11-02 | YOSCHOYUNA? |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU363154A1 (en) |
-
1970
- 1970-11-02 SU SU1485355A patent/SU363154A1/en active
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