SU789826A1 - Apparatus for indicating voltage presense and phase open circuit in three-phase network - Google Patents
Apparatus for indicating voltage presense and phase open circuit in three-phase network Download PDFInfo
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- SU789826A1 SU789826A1 SU782672552A SU2672552A SU789826A1 SU 789826 A1 SU789826 A1 SU 789826A1 SU 782672552 A SU782672552 A SU 782672552A SU 2672552 A SU2672552 A SU 2672552A SU 789826 A1 SU789826 A1 SU 789826A1
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- SU
- USSR - Soviet Union
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- phase
- presense
- network
- open circuit
- indicating voltage
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- Emergency Protection Circuit Devices (AREA)
Description
Изобретение относитс к электротехнике и может быть использовано в трехфазных сет х переменного тока, в том числе в трехфазных трехпроводных сет х с изолированной нейтралью, где необходим посто нный контроль наличи трехфазного напр жени .The invention relates to electrical engineering and can be used in three-phase AC networks, including three-phase three-wire networks with insulated neutral, where constant monitoring of the presence of three-phase voltage is necessary.
Известно устройство индикации наличи трехфазного напр жени , содержащее сигнальную неоновую лампуу шунтированную конденсатором и подключенную через резистор к выходу трехфазного мостового выпр мител , питаемого от линейных напр жений сети 1.A device for indicating the presence of a three-phase voltage is known, which contains a signal neon lamp shunted by a capacitor and connected via a resistor to the output of a three-phase bridge rectifier supplied from the line voltage 1.
Однако известное устройство не позвол ет в случае обрыва одной из фаз определить, кака фаза вышла из стро .However, the known device does not allow, in the event of a break in one of the phases, to determine which phase has failed.
Наиболее близкое предлагаемому устройство индикации наличи напр жени и обрыва фаз трехфазной сети содержит три контролирующие цепи, кажда из которых имеет сигнальную лампу и резистор, пок.точенные к двум смежный фазам 2 .The closest to the proposed device for indicating the presence of voltage and phase failure of a three-phase network contains three control circuits, each of which has a signal lamp and a resistor, pointed to two adjacent phases 2.
, Недостатком известного устройства вл етс низка точность определени вышедшей из стро фазы при несимметричной трехфазной нагрузке.A disadvantage of the known device is the low accuracy of determining the out of phase under asymmetric three-phase load.
Цель изобретени - повышение точности определени вышедшей из стро фазы при несимметричной трехфазной нагрузке.The purpose of the invention is to improve the accuracy of determining the out of phase under asymmetric three-phase load.
Указанна цель достигаетс благодар тому, что в устройстве индикации наличи напр жени и обрыва фаз трехфазной сети, содержащем три контролирующие цепи, кажда из которых This goal is achieved due to the fact that the device for indicating the presence of voltage and phase failure of a three-phase network contains three control circuits, each of which
10 содержит сигнальную лампу и резистор, подключенные к двум смежным фазам, в каждую контролирующую цепь введены два диода, причем анод первого диода соединен с сигнальной лампой, ка15 тоды первого и второго диодов соединены между собой и с резистором, а анад второго диода соединен с третьей фазой сети.10 contains a signal lamp and a resistor connected to two adjacent phases, two diodes are inserted into each control circuit, the anode of the first diode is connected to the signal lamp, the tubes of the first and second diodes are connected to each other and the resistor, and the second diode is connected to the third network phase.
На чертеже представлена принципи20 альна электрическа схема предлагаемого устройства индикации.The drawing shows the principal electrical circuit of the proposed display device.
Устройство состоит из трех одинаковых контролирующих цепей, подключенных к двум смежным фазам 1-2, 2-3 The device consists of three identical control circuits connected to two adjacent phases 1-2, 2-3
25 и 1-3 трехфазной сети, работающей на трехфазную нагрузку 4, 5 и 6. Кажда цепь контролирует исправность одной фазы и состоит из сигнальной лампы 7,8,9, в качестве которой, например.25 and 1-3 of a three-phase network operating on a three-phase load of 4, 5 and 6. Each circuit controls the health of one phase and consists of a signal lamp 7, 8, 9, such as.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782672552A SU789826A1 (en) | 1978-10-09 | 1978-10-09 | Apparatus for indicating voltage presense and phase open circuit in three-phase network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782672552A SU789826A1 (en) | 1978-10-09 | 1978-10-09 | Apparatus for indicating voltage presense and phase open circuit in three-phase network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU789826A1 true SU789826A1 (en) | 1980-12-23 |
Family
ID=20788706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU782672552A SU789826A1 (en) | 1978-10-09 | 1978-10-09 | Apparatus for indicating voltage presense and phase open circuit in three-phase network |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU789826A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4833460A (en) * | 1987-02-02 | 1989-05-23 | Sabo Thomas E | Phasing indicator |
| RU184840U1 (en) * | 2018-07-19 | 2018-11-12 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | DEVICE FOR INDICATING VOLTAGE AND REDUCING PHASES OF THREE-PHASE NETWORK |
-
1978
- 1978-10-09 SU SU782672552A patent/SU789826A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4833460A (en) * | 1987-02-02 | 1989-05-23 | Sabo Thomas E | Phasing indicator |
| RU184840U1 (en) * | 2018-07-19 | 2018-11-12 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | DEVICE FOR INDICATING VOLTAGE AND REDUCING PHASES OF THREE-PHASE NETWORK |
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