SU959209A1

SU959209A1 - Apparatus for controlling transverse capacitive compensation

Info

Publication number: SU959209A1
Application number: SU802999836A
Authority: SU
Inventors: Леонид Абрамович Герман; Вадим Григорьевич Рогацкий
Original assignee: За витель on и с A НИ Е ИЗОБРЕТЕНИЯ К АВТОРСКОМУ СВИДЕТЕЛЬСТВУ 61) Дополнительное к авт. свнд-ву - 22)За влено 03,11.80
Priority date: 1980-11-03
Filing date: 1980-11-03
Publication date: 1982-09-15

Description

(54) УСТРОЙСТВО РЕГУЛИРУЕМОЙ ПОПЕРЕЧНОЙ ЕМКОСТНОЙ КОМПЕНСАЦИИ(54) DEVICE OF ADJUSTABLE TRANSVERSE CAPACITY COMPENSATION

1one

Изобретение относитс к электротехнике и может быть использовано в т говых сет х электрифицировашп 1х железных дорог переменного ТОКЭоThe invention relates to electrical engineering and can be used in the traction networks of electrification of 1x AC railways.

Известно компенсирующее устройство, содер жащее параллельно соединенные регугшровочную обмотку трансформатора, снабженную уст ройством дл регулировани напр жений под нагрузкой и установку емкостной компенса ции, состо щую из последовательно соедине ных конденсаторной батареи, реактора и вторичной обмотки дополнительного трансформатора , первична обмотка которого присоединена к выходу регулировочной обмотки трансформатора 1.A compensating device containing a transformer winding connected in parallel, equipped with a device for regulating voltages under load and a capacitive compensation unit consisting of a series-connected capacitor battery, a reactor and a secondary winding of an additional transformer whose primary winding is connected to an output regulator is known. transformer windings 1.

Недостатком этого устройства вл етс уо ложнение его из-за дополнительного трансформатора И снижени надежности из-за использовани в этом трансформаторе переключающего устройства с разрывом цепи тока.A disadvantage of this device is its failure due to an additional transformer and a decrease in reliability due to the use of a switching device with an open circuit in this transformer.

Наиболее близким к изобретению вл етс устройство дл компенсации реактивной мощности, содержащее трансформатор, параллельно первичной обмотке которого подключены последовательно соединенные конденсаторна батаре , реактор и вторична обмйт ка трансформатора с регул тором напр жени под нагрузкой, Примеч дл увеличени диапазона регулировани мощности устройство снабжено дополнительным переключателем 2.Closest to the invention is a device for compensating reactive power, which contains a transformer, parallel to the primary winding of which are connected a series-connected capacitor battery, a reactor and a secondary side of the transformer with a voltage regulator under load, Note to increase the range of power control, the device is equipped with an additional switch 2 .

Недостатком прототипа вл етс коммутаци цепи с разрывом тока компенсирующего устройства, т,е. с отключением и последующим включением КУ, при переключении втоto ричной обмотки трансформатора дополнительным переключателем. В результате при коммутации возникают броски тока до четырех кратных и перенапр жени до двух кратных номинальных значений, которые уменьщают The disadvantage of the prototype is the switching circuit with a rupture of the current of the compensating device, t, e. with switching off and subsequent switching on of KU, when switching the secondary winding of the transformer with an additional switch. As a result, when switching, current surges up to four times and surge to two times nominal values occur, which reduce

15 срок службы элементов устройства и снижают ее надежность. Если переключени производить без разрьта тока КУ, то происходит закора™ чивание вторичной обмотки трансформатора, что приводит к его повреждению.15 the service life of the elements of the device and reduce its reliability. If switching is performed without disrupting the current of the capacitor, then the secondary winding of the transformer is short-circuited, which leads to its damage.

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Цель изобретени - повыщенйе надежноо ти работы при регулировании мощности.The purpose of the invention is to increase the reliability of operation during power control.

Claims

This goal is achieved by the fact that in a device adjustable transverse capacitive compensation, containing a capacitor battery, a booster transformer, a reactor and switching devices with drives, switching devices are connected in a bridge circuit, the reactor is connected in one diagonal of the bridge and the secondary winding of the transformer is connected and the other is the diagonal of the bridge connected in series with a capacitor battery and connected in parallel with the transformer's primary winding, with diagonal p memory location switching devices bridge vsholneny to a common driver. The drawing shows a diagram of the device. In a single-phase implementation, the device contains a capacitor battery 1 connected in series with the diagonal of the bridge. switched 2-5 and connected in parallel with the primary winding 6 of the transformer 7 with voltage regulation. load. The series-connected reactor 8 and the secondary winding 9 of the transformer 7 are included in another diagonal of the bridge. The entire device is protected by a switch 10. The power regulation of the device is carried out by regulating the voltage under the load of the transformer 7 and switching the secondary winding 9 of the transformer by switches 2-5. When switching from the oncoming switching on of the secondary winding 9 (switching devices 2 and 3 are turned on, and 4 and 5 are turned off), all switches are switched on for a short time, and then switching devices 2 and 3 are disconnected. The technical and economic effect of the proposed device consists in increasing the reliability of capacitive compensation elements by increasing the service life of the elements of the device. Claims of the invention Adjustable transverse capacitance compensation device comprising a capacitor battery, an add-on transformer, a reactor and switching devices with a drive, characterized in that, in order to increase the reliability of power control, the switching devices are connected in a bridge circuit, the ractor and a series-connected secondary winding of the transformer, and the other bridge diagonal is connected in series with a capacitor battery and connected to a parallel the primary winding of the transformer, and the diagonally located switching devices of the bridge are made with a common drive. Sources of information taken into account in the examination 1. USSR author's certificate № 411574 l. H 02 J 3/18, 1969. 2o Copyright Certificate of the USSR No. 655022 l. H 02 J 3/18, 1975 (prototype).