SU453768A1 - DEVICE FOR PROTECTION AGAINST SHORT CIRCUITS INTERCEPTIONS OF CONTINUOUSLY POWERED DC MOTOR MOTORS - Google Patents
DEVICE FOR PROTECTION AGAINST SHORT CIRCUITS INTERCEPTIONS OF CONTINUOUSLY POWERED DC MOTOR MOTORSInfo
- Publication number
- SU453768A1 SU453768A1 SU1835854A SU1835854A SU453768A1 SU 453768 A1 SU453768 A1 SU 453768A1 SU 1835854 A SU1835854 A SU 1835854A SU 1835854 A SU1835854 A SU 1835854A SU 453768 A1 SU453768 A1 SU 453768A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- short circuits
- interceptions
- protection against
- against short
- continuously powered
- Prior art date
Links
Landscapes
- Protection Of Generators And Motors (AREA)
Description
1one
Известны устройства дл защиты от коротких замыканий и перегрузок -последовательно включенных электродвигателей посто нного тока , содержащие иополнительиое реле наирпжеии .Devices for protection against short circuits and overloads of successively connected direct current electric motors are known, which include an external actuator.
Предлагаемое устройство позвол ет повысить надежность защиты. Это достигаетс тем, что реле напр жени включено в диагональ моста, образованного обмотками каждого электродвигател и двум дополнительными резисторами.The proposed device allows to increase the reliability of protection. This is achieved by the fact that the voltage relay is included in the diagonal of the bridge formed by the windings of each electric motor and two additional resistors.
На чертеже дана принципиальна схема описываемого устройства.The drawing is a schematic diagram of the described device.
Реле / напр жени включено в диагональ моста, образованного обмотками последовательно включенных электродвигателей 2 и 3 и резисторами 4 иб.The relay / voltage is included in the diagonal of the bridge formed by the windings of series-connected electric motors 2 and 3 and resistors 4 ib.
При нормальной работе электродвигателей разность потенциалов «а реле равна нулю. При возникновении повреждени на одном из электродвигателей его лротиво - э.д.с. измен етс и через реле протекает ток небаланса. Величину активного сопротивлени и мощность резисторов выбирают исход из тока срабатывани реле.During normal operation of electric motors, the potential difference “and the relay is zero. If a damage occurs on one of its electric motors, it is opposite to the emf. changes and a unbalance current flows through the relay. The magnitude of the active resistance and the power of the resistors are chosen based on the relay operating current.
Предлагаемое устройство обеспечивает защиту электродвигателей от перегрузок и коротких эа.мыкаиий, св занных как с нар тиением электрической цепи, так и с механическими поврел{дени ми в приводных механизмах.The proposed device provides protection for electric motors against overloads and short-circuit faults, associated both with the electric circuit and mechanical damage {actuators in the drive mechanisms.
Предмет изобретени Subject invention
Устройство Д.ТЯ защиты от коротких замыканий и перегрузок последовательно включенных электродвигателей посто нного тока, содержащее исполнительное реле напр жени , отличающеес тем, что, с целью повышени надежности , реле напр жени включено в диагональ моста, образоваиного обмотками каждого электродвигател и двум дополнительными резисторами.The D.TA device protects against short circuits and overloads of series-connected DC motors, which contain an actuating voltage relay, characterized in that, in order to increase reliability, the voltage relay is included in the diagonal of the bridge formed by the windings of each electric motor and two additional resistors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1835854A SU453768A1 (en) | 1972-07-31 | 1972-07-31 | DEVICE FOR PROTECTION AGAINST SHORT CIRCUITS INTERCEPTIONS OF CONTINUOUSLY POWERED DC MOTOR MOTORS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1835854A SU453768A1 (en) | 1972-07-31 | 1972-07-31 | DEVICE FOR PROTECTION AGAINST SHORT CIRCUITS INTERCEPTIONS OF CONTINUOUSLY POWERED DC MOTOR MOTORS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU453768A1 true SU453768A1 (en) | 1974-12-15 |
Family
ID=20529108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1835854A SU453768A1 (en) | 1972-07-31 | 1972-07-31 | DEVICE FOR PROTECTION AGAINST SHORT CIRCUITS INTERCEPTIONS OF CONTINUOUSLY POWERED DC MOTOR MOTORS |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU453768A1 (en) |
-
1972
- 1972-07-31 SU SU1835854A patent/SU453768A1/en active
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