SU737996A1 - Transformer-rectifier device - Google Patents

Description

The invention relates to high voltage electrical technology and can be used in high voltage rectifying devices for powering various high voltage electrical devices, physical and x-ray equipment.

Trznsformatorno-known rectifying unit device iymi e uncontrolled rectifiers, wherein the converter transformer and rectifier razmoschony generally sealed tank filled teploohlazhdayuschim dielektpHkoM, wherein the transformer on the frame so.bran closed matnitoprovo / de, and the secondary winding of vk.pyucheny kasksschnoy rectifier assembled according to the doubling scheme 1.

Single rectifiers each contain two electrical capacitors and two semiconductor imbalances. The electrical capacitors dampen - the output voltages across the rectifier post. The entire device is mounted on a metal base plate and covered with a cylindrical dielectric housing with a metal, lye saucer-shaped lid.

..J,. .-.,., ,,,,, ... 2.

The disadvantage of the known transformer-rectifying device.

:; is a complex construction of a transformer, a transformer, a technologically complex ferrite magnetic core, which reduces the overall reliability of the device,

used as a power source for an electron accelerator. Cro: msg addition, require additional

You are a volt-isolated isolating transformer with independently controlled power supply for use of devices in cascade circuits

15 or circuits of electrical power supply for devices with high emissivity (enn to the device: electron accelerators, x-ray devices, and.

.K-J -i S fiilflK rf-sK-KffisfSilaf ilsfl

20

 The closest to the described invention is three worth $ 1 azn

(transformer rectifier device containing a step-up transformer for gf6-countries-symmetric

25 magnetic circuit and sectioned secondary winding, sections of which are located one under the other, and spatially symmetric rectifier columns 2.

ze

Hermetic collapsible cylindrical: the cue case of the device and the device itself is more of a conductive material. The power cables and high-voltage output are located on the bottom metal base plate of the housing. To feed the thermal emission cathode (ACCS), the electron heat cycle uses one 13 sections of the secondary winding of the step-up transformer.

The disadvantage of the known device is not high enough operational reliability due to the presence of high-voltage output, faktiruemy on a grounded plate base of the case. Sections of the secondary winding have a small impedance of electric strength when exposed to pulsed overvoltages that occur during the operation of an electron accelerator. In addition, the operation of the power section of the transformer - rectifying device and its filament sections is characterized by the presence of a common magnetic flux, which does not allow separate regulation of the accelerator heater circuit and high constant voltage. These features limit the functionality of a well-known multi-phase transformer rectifier device.

The aim of the invention is to enhance the functionality and increase the operational reliability of the transformer rectifier device.

The goal is to achieve that THAT, in a transformer-rectifying device inside a sealed enclosure of insulating material, together with a converter transformer with a spatially symmetric magnetic circuit and a high-voltage rectifier, is located at least one insulating transformer with a loop-like primary winding and ring Magnetic leads, The device is equipped with an insulating cylinder, located along the axis of the cylindrical body, with additional insulating cylinders and number capacitors, the housing has holes in the ends closed by insulating lids with electrical inputs, the power inputs are also placed on the bottom cover, the terminals in the top cover, the transformer secondary winding sections are formed by toroidal coils and shunted by capacitors, and the primary windings of the transformers are placed in additional insulators cylinders ..

FIG. 1 shows a transformer-rectifying device, front view; in fig. 2, 3 - the same, electrical circuit in principle; Fig, 4 - the same without the case, top view.

The transformer rectifying device contains a converter transformer 1 with a loop-shaped primary winding 2 with electrical inputs 3 and 4 of the supply primary voltage, and the secondary winding 5 of. several toroidal katyuK 6, located in the cells formed by insulating flat rings 7 and supporting insulating cylinders 8, fastened among themselves by dielectric straps 9, high-voltage –multiple speed bridge rectifier 10, the steps of which are electrically connected to the corresponding dimic toroidal coils 6 conversion transformer 1 Colonies of electrical capacitors 11 located in insulating cylinders 12 and shunting toroidal coils 6, switching central insulating A cylinder 13 on which the contacts 14 of the electrical connections of the converter transformer 1 and the bridge rectifier 10 are mounted, and an ohmic measuring divider of high voltage 15, insulating transformers 16 containing the primary loop-like winding 17 and electrically inputted supply voltage 18 are mounted inside the cylinder 13. , the secondary winding 19 of several toroidal coils 20, located in the cells one above the other on the vertical supporting insulating cylinder 21, the supporting plate 22, is sealed This insulating body 23, having the shape of a body of rotation, is smoothly formed and made of two parts 24 and 25, both parts of the body, along the line of tight contact with the plate 22, have bulges in which the housing attachment elements with the base plate are placed; partly supported on cylinder 26, having openings in the side surface. The upper part and the lower part of the housing have openings located along the vertical axis of the housing and hermetically closed covers 27 and 28, with electrical contacts 3, 4 and 18 supplying the supply voltage, a low-voltage input of the ohmic voltage divider 15 and a low-voltage pole 29 of a high-voltage rectifier / l 10, and in the top cover the electrical contacts of 30 terminals of the secondary windings of insulating transformers 16 are hermetically sealed, the high-voltage pole 31 of a high-voltage rectifier 10, and ohmic voltage divider 15. Insulation casing 23 is filled with insulating gas under pressure. Pressure ventilator 32 gas intake hull reinforced te bottom cover. In a three-phase high-voltage transformer-rectifying device, the phases of the converter transformer 1 and three isolating transformers 1b are located around the switching central cylinder 13 and the phases of the high-voltage three-phase bridge rectifier 10 are star-shaped between them. One electrical output of the toroidal coils 6 is electrically connected to their magnetic core

Transformer rectifier device operates as follows.

The electrical inputs 3, 4 and 18 of the primary winding 2 of the converter transformer 1 and the primary windings 17 of the insulating transformers 16 are supplied with a better alternating voltage. In the toroidal coils b and 20 of the transformers 1 and 16, an alternating voltage is induced, the high voltage of the toroidal cartridges b of the converter transformer 1 is rectified and connected to them by the strut of the rectifier 10. The output voltage of the rectifier 10 is obtained as the sum of the output voltages his steps. Due to the multi-stage rectifier 10, the main insulation of the converter transformer 1 is subjected to the action of a mainly constant rectified voltage, which builds linearly along the longitudinal insulation of transformers 1 and 16. The capacitors 11 increase the electrical capacity of the toroidal coils of the converter transformer 1 relative to each other and the ground that ensures uniform distribution of electrical voltages across toroidal coils. The hermetic insulating case performs the role of an external electrical insulator of a transformer-rectifying device. A measuring divider of high voltage 15 provides a measurement of the output voltage of the rectifier 10. Combining the return wires of the primary loop-like windings 2 and 17 of transformer 1 and 16 in common insulating cylinders makes it possible to reduce the size of a transformer-rectifying device. The pressure valve serves to fill the casing with insulating gas under pressure or liquid dielectric. Isolating transformers 16 supply, independently controlled electric voltage, high-voltage electrical loads at the potential of the output voltage of the rectifier 10-.

The proposed transformer rectifying device, effectively at an output voltage level of hundreds of kilovolts and a power of ten kilowatts and a maximum, provides the possibility of separate control of the parameters of the heat and power circuit when the electron accelerator is powered.

five

Claims (2)

1. US patent 3541424, cl. 321-8, 1970. 2. USSR author's certificate 5 No. 500719, cl. H 05 H 5/00, 1976.