SU957344A1 - Device for protecting three-phase voltage consumer against phase break or phase alternation change - Google Patents
Device for protecting three-phase voltage consumer against phase break or phase alternation change Download PDFInfo
- Publication number
- SU957344A1 SU957344A1 SU803218921A SU3218921A SU957344A1 SU 957344 A1 SU957344 A1 SU 957344A1 SU 803218921 A SU803218921 A SU 803218921A SU 3218921 A SU3218921 A SU 3218921A SU 957344 A1 SU957344 A1 SU 957344A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- phase
- relay
- resistor
- consumer
- transistor
- Prior art date
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- Emergency Protection Circuit Devices (AREA)
Description
1one
Изобретение относитс к автоматике и может примен тьс дл зашиты электрорадиоустановок , потребл ющих трехфазный ток, от работы при неправильном чередовщ1ии фаз питающего напр жени Н от работы на двух фазах.The invention relates to automation and can be used for protection of electrical equipment, consuming three-phase current, from work with an incorrect alternation of the phases of the supply voltage H from work on two phases.
Известны устройства защиты потребител от неправильного чередовани фаз питающего напр жени и от работы на , двух фазах, например, устройство, которое содержит фазочувствительную звезду из последовательно соединенных .резисторов , обща точка которых подключена к одной из фаз через конденсатор, один из резисторов подключен ко второй фазе, а второй резистор - к третьей фазе через вьтр л ительный мост, в свободную диагональ которого включены два рюле, первое из которых включено последовательно со СтрПилизатрром, а второе последог ательно с размыкающим контактом первого роле fl .Consumer protection devices are known to prevent alternating the phases of the supply voltage and operating on two phases, for example, a device that contains a phase-sensitive star of series-connected resistors, the common point of which is connected to one of the phases through a capacitor, one of the resistors is connected to the second phase, and the second resistor - to the third phase through the top of the power bridge, in the free diagonal of which two rules are included, the first of which is connected in series with the StPilisator, and the second About with the opening contact of the first role fl.
Однако извосттгое ух:гтройство не контрол11 1уот оПрмв фозы питающего напр жеHowever, izvosttgoe uh: hotline is not controlled by 11 1wot oPrmv foza feeding for example
ки третьей фазы, а при обрыве любой другой фазы, при низкоомной нагрузке имеет пониженную чувствительность, так как всегда устройство остаетс подключенньп л к другим фазам через нагрузку . Кроме того, такое устройство не реагирует на обрьт фазы со стороны потребител .At the third phase, and at the break of any other phase, at low resistance the load has a reduced sensitivity, since the device always remains connected to other phases through the load. In addition, such a device does not respond to phase loss by the consumer.
Наиболее близким к предлагаемомуClosest to the proposed
10 вл етс устройство дл защиты потребител от неправильного чередовани фаз и от пропадани фазы, содержащее фазочувствительный элемент, вьшолненный в виде звезды, плечи которой подключе-10 is a device for protecting a consumer from incorrect phase rotation and phase failure, containing a phase-sensitive element made in the form of a star, whose shoulders connect
15 ны к фазам сети, причем в одно плечо включен конденсатор, в другое - резистор , а в третье - соединенные последовательно , резистор и исполнительный орган , щунтированные конденсаторами 2 .They are connected to the mains phases, with a capacitor connected to one shoulder, a resistor to the other, and a series-connected resistor and actuator connected by capacitors 2 to the third.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU803218921A SU957344A1 (en) | 1980-12-17 | 1980-12-17 | Device for protecting three-phase voltage consumer against phase break or phase alternation change |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU803218921A SU957344A1 (en) | 1980-12-17 | 1980-12-17 | Device for protecting three-phase voltage consumer against phase break or phase alternation change |
Publications (1)
Publication Number | Publication Date |
---|---|
SU957344A1 true SU957344A1 (en) | 1982-09-07 |
Family
ID=20932261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU803218921A SU957344A1 (en) | 1980-12-17 | 1980-12-17 | Device for protecting three-phase voltage consumer against phase break or phase alternation change |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU957344A1 (en) |
-
1980
- 1980-12-17 SU SU803218921A patent/SU957344A1/en active
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