SU535655A1 - Device for protection of three-phase consumers against phase failure - Google Patents
Device for protection of three-phase consumers against phase failureInfo
- Publication number
- SU535655A1 SU535655A1 SU2113546A SU2113546A SU535655A1 SU 535655 A1 SU535655 A1 SU 535655A1 SU 2113546 A SU2113546 A SU 2113546A SU 2113546 A SU2113546 A SU 2113546A SU 535655 A1 SU535655 A1 SU 535655A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- phase
- protection
- failure
- consumers against
- contact
- Prior art date
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Description
1one
Изобретение относитс к области электротехники , а именно к устройствам защиты трехфазных потребителей при пропадании одной или более фаз.The invention relates to the field of electrical engineering, in particular, to devices protecting three-phase consumers in the event of the loss of one or more phases.
Известно устройство дл защиты трехфазных потребителей от обрыва фазы, содержащее электромагнитное реле на терконе, размещенном внутри обмотки возбуждени 1.A device for protecting three-phase consumers against phase failure is known, which contains an electromagnetic relay on a tercon located inside the field winding 1.
Недостатком такого устройства вл етс то, что оно выполнено однофазным, и при использовании его в трехфазных сет х оно существенно усложн етс .The disadvantage of such a device is that it is made single-phase, and when used in three-phase networks it becomes much more complicated.
С целью расширени функциональных возможностей в предлагаемом устройстве реле выполнено двухобмоточным, обмотки которого включены во все три фазы линии питани , а геркон включен последовательно контакту магнитного пускател , и эта цепь подключена параллельно пусковой кнопке.In order to expand the functionality in the proposed device, the relay is double-wound, the windings of which are included in all three phases of the supply line, and the reed switch is connected in series with the contact of the magnetic starter, and this circuit is connected parallel to the start button.
На фиг. I показано предлагаемое устройство , общий вид; на фиг. 2 - электрическа схема управлени магнитным пускателем.FIG. I shows the proposed device, a general view; in fig. 2 is an electrical control circuit of the magnetic starter.
Устройство состоит из платы 1, на которой размещены каркас 2, с размещенными на нем обмотками 3, 4 и герконом 5, расположенным внутри каркаса 2. Концы обмоток 3 ,и 4 закреплены на клеммах 6, а выходные концы геркона - на клеммах 7.The device consists of a board 1, on which a frame 2 is placed, with windings 3, 4 placed on it and a reed switch 5 located inside frame 2. The ends of the windings 3 and 4 are fixed on terminals 6 and the output ends of the reed switch are on terminals 7.
Нормально-открытый контакт 8 геркона 5 включен в цепь управлени катушкой 9 магнитного пускател последовательно контакту 10, блокирующему пусковую кнопку 11.A normally open contact 8 of the reed switch 5 is connected to the control circuit of the coil 9 of the magnetic starter in series with the contact 10, which blocks the start button 11.
Включение обмоток 3 и 4 в цепь питани показано на фиг. 2.The inclusion of windings 3 and 4 in the power supply circuit is shown in FIG. 2
Устройство работает следующи.м образом.The device works as follows.
Дл включени нагрузки 12 нажимают кнопку 11, при этом получает питание катушка 9 магнитного пускател , который включаетс , его блокировочный контакт 10 замыкаетс , замыкаютс контакты 13, нагрузка 12 получает питание. Одновременно получают питание обмотки 3 и 4, которые создают суммарное магнитное поле, достаточное дл замыкани контакта 8 геркона 5, который совместно с контактом 10 блокирует кнопку 11.To turn on the load 12, the button 11 is pressed, the coil 9 of the magnetic starter is activated, which is turned on, its blocking contact 10 is closed, the contacts 13 are closed, the load 12 is powered. At the same time, windings 3 and 4 are powered, which create a total magnetic field sufficient to close the contact 8 of the reed switch 5, which together with the contact 10 blocks the button 11.
При исчезновении напр жени в одной из фаз обесточиваетс одна из обмоток 3 или 4, что приводит к уменьшению суммарного магнитного пол их, к размыканию контакта 8 геркона 5 и отключению катушки 9 магнитного пускател , размыканию контактов 13 и отключению нагрузки 12.When the voltage disappears in one of the phases, one of the windings 3 or 4 is de-energized, which leads to a decrease in their total magnetic field, to the opening of the contact 8 of the reed switch 5 and to disconnecting the coil 9 of the magnetic actuator, opening the contacts 13 and disconnecting the load 12.
Нормальное отключение нагрузки 12 осуществл етс кнопкой 14.Normal disconnection of load 12 is carried out by button 14.
2525
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2113546A SU535655A1 (en) | 1975-03-17 | 1975-03-17 | Device for protection of three-phase consumers against phase failure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2113546A SU535655A1 (en) | 1975-03-17 | 1975-03-17 | Device for protection of three-phase consumers against phase failure |
Publications (1)
Publication Number | Publication Date |
---|---|
SU535655A1 true SU535655A1 (en) | 1976-11-15 |
Family
ID=20612741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2113546A SU535655A1 (en) | 1975-03-17 | 1975-03-17 | Device for protection of three-phase consumers against phase failure |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU535655A1 (en) |
-
1975
- 1975-03-17 SU SU2113546A patent/SU535655A1/en active
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