SU938346A1 - Device for checking presence of voltage in three-phase network phases - Google Patents
Device for checking presence of voltage in three-phase network phases Download PDFInfo
- Publication number
- SU938346A1 SU938346A1 SU772446604A SU2446604A SU938346A1 SU 938346 A1 SU938346 A1 SU 938346A1 SU 772446604 A SU772446604 A SU 772446604A SU 2446604 A SU2446604 A SU 2446604A SU 938346 A1 SU938346 A1 SU 938346A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- voltage
- phase network
- network phases
- checking presence
- phases
- Prior art date
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- Rectifiers (AREA)
Description
(Б) УСТРОЙСТВО дл КОНТРОЛЯ НАЛИЧИЯ НАПРЯЖЕНИЯ В ФАЗАХ ТРЕХФАЗНОЙ СЕТИ(B) DEVICE FOR CONTROL OF PRESENT VOLTAGE IN THREE-PHASE NETWORK PHASES
1one
Изобретение относитс к электротехнике , в частности к системам контрол электрической трехфазной сети, и может быть использовано в судовых системах электропитани дл контрол наличи напр жени в фазах.The invention relates to electrical engineering, in particular, to control systems of an electrical three-phase network, and can be used in shipboard electrical power systems to monitor the presence of voltage in phases.
Известно устройство дл контрол напр жени трехфазной сети, содержащее в качестве датчика контролируемого наЛр жени выпр митель, источники ,д опорных посто нных напр жений и дифференциальный усилитель на транзисторах 1 .A device for monitoring the voltage of a three-phase network, containing a rectifier, sources, g dc reference voltages and a differential amplifier on transistors 1, as a sensor of the monitored voltage.
Недостаток устройства заключаетс в сложности схемного решени и на- jj личии дополнительных источников посто нного тока.The drawback of the device lies in the complexity of the circuit design and the availability of additional sources of direct current.
Наиболее близким по технической сущности к предлагаемому вл етс 20 устройство дл контрол наличи напр жени в трехфазной сети - трехфазный выпр митель, на выходе, которого включены резистор и последовательноThe closest in technical essence to the present invention is a device for monitoring the presence of voltage in a three-phase network — a three-phase rectifier, the output of which includes a resistor and in series
соединенные конденсатор, рабоча обмотка первого реле и диод L2j.connected capacitor, the working winding of the first relay and the diode L2j.
Однако известным .устройством невозможно различать неисправность .одной из фаз от неисправности двух и трех фаз.However, a known device cannot distinguish between a failure of one of the phases and a failure of two and three phases.
Цель изобретени - расширение функциональной возможности устройства путем распознавани неисправности одной, двух и трех фаз.The purpose of the invention is to expand the functionality of the device by recognizing faults in one, two and three phases.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772446604A SU938346A1 (en) | 1977-01-26 | 1977-01-26 | Device for checking presence of voltage in three-phase network phases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772446604A SU938346A1 (en) | 1977-01-26 | 1977-01-26 | Device for checking presence of voltage in three-phase network phases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU938346A1 true SU938346A1 (en) | 1982-06-23 |
Family
ID=20693244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772446604A SU938346A1 (en) | 1977-01-26 | 1977-01-26 | Device for checking presence of voltage in three-phase network phases |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU938346A1 (en) |
-
1977
- 1977-01-26 SU SU772446604A patent/SU938346A1/en active
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