RU2006094C1 - Switching method of circuit incorporating power transformer - Google Patents
Switching method of circuit incorporating power transformer Download PDFInfo
- Publication number
- RU2006094C1 RU2006094C1 SU4718490A RU2006094C1 RU 2006094 C1 RU2006094 C1 RU 2006094C1 SU 4718490 A SU4718490 A SU 4718490A RU 2006094 C1 RU2006094 C1 RU 2006094C1
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- RU
- Russia
- Prior art keywords
- transformer
- switching
- circuit breaker
- power transformer
- circuit
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- Protection Of Transformers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
Изобретение относится к области электротехники, в частности к сетям высокого напряжения. The invention relates to the field of electrical engineering, in particular to high voltage networks.
Цель изобретения - повышение надежности при включении цепи с ненагруженным трансформатором путем исключения бросков токов намагничивания. The purpose of the invention is to increase reliability when you turn on the circuit with an unloaded transformer by eliminating inrush currents of magnetization currents.
На чертеже дана схема реализации способа коммутации цепи с силовым трансформатором, где к системе шин 1 и 2 высокого напряжения через разъединители 3 и 4, выключатель 5 и разъединитель 6 подключен трансформатор 7. The drawing shows a diagram of a method for switching a circuit with a power transformer, where a transformer 7 is connected to the high voltage bus system 1 and 2 through disconnectors 3 and 4, switch 5 and disconnector 6.
Включение трансформатора 7 под напряжение происходит следующим образом. Включают разъединитель 6, затем выключатель 5, и после этого осуществляют электрическое включение, включая разъединитель 3 или 4 в зависимости от используемой системы шин (одна или две). Такая последовательность является оптимальной с учетом переходных процессов при коммутациях. В этом случае при включении разъединителя 3 или 4 ввиду малой скорости движения его контактов собственно включение произойдет путем электрического пробоя межконтактного промежутка разъединителя вблизи максимума питающего напряжения, а следовательно, переходный процесс не будет сопровождаться бросками намагничивающего тока трансформатора. The inclusion of the transformer 7 under voltage is as follows. The disconnector 6 is turned on, then the switch 5, and then an electrical connection is made, including the disconnector 3 or 4, depending on the bus system used (one or two). Such a sequence is optimal taking into account transients during switching. In this case, when the disconnector 3 or 4 is turned on, due to the low speed of its contacts, the actual switching on will occur by electric breakdown of the interconnector gap of the disconnector near the maximum supply voltage, and therefore, the transient process will not be accompanied by surges of the magnetizing current of the transformer.
Таким образом, предлагаемая очередность процесса коммутации разъединителей и выключателя исключает броски намагничивающего тока при включении ненагруженного трансформатора. (56) Авторское свидетельство СССР N 855774, кл. H 01 H 33/59, 1979. Thus, the proposed sequence of the switching process of the disconnectors and the circuit breaker eliminates inrush currents when the unloaded transformer is turned on. (56) Copyright certificate of the USSR N 855774, cl. H 01 H 33/59, 1979.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4718490 RU2006094C1 (en) | 1989-06-11 | 1989-06-11 | Switching method of circuit incorporating power transformer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4718490 RU2006094C1 (en) | 1989-06-11 | 1989-06-11 | Switching method of circuit incorporating power transformer |
Publications (1)
Publication Number | Publication Date |
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RU2006094C1 true RU2006094C1 (en) | 1994-01-15 |
Family
ID=21460668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU4718490 RU2006094C1 (en) | 1989-06-11 | 1989-06-11 | Switching method of circuit incorporating power transformer |
Country Status (1)
Country | Link |
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RU (1) | RU2006094C1 (en) |
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1989
- 1989-06-11 RU SU4718490 patent/RU2006094C1/en active
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