SU69762A1 - Thunderproof high-voltage electrical apparatus - Google Patents

Thunderproof high-voltage electrical apparatus

Info

Publication number
SU69762A1
SU69762A1 SU1242A SU1242A SU69762A1 SU 69762 A1 SU69762 A1 SU 69762A1 SU 1242 A SU1242 A SU 1242A SU 1242 A SU1242 A SU 1242A SU 69762 A1 SU69762 A1 SU 69762A1
Authority
SU
USSR - Soviet Union
Prior art keywords
thunderproof
electrical apparatus
voltage electrical
transformers
winding
Prior art date
Application number
SU1242A
Other languages
Russian (ru)
Inventor
Г.Л. Эпштейн
Original Assignee
Г.Л. Эпштейн
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Г.Л. Эпштейн filed Critical Г.Л. Эпштейн
Priority to SU1242A priority Critical patent/SU69762A1/en
Application granted granted Critical
Publication of SU69762A1 publication Critical patent/SU69762A1/en

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  • Regulation Of General Use Transformers (AREA)

Description

Современные грозоупорные электрические высоковольтные аппараты, например, трансформаторы, обычно снабжаютс  е.мкостными экранами дл  обмоток со стороны несущей напр жение линии. Ранее экраны находили применение только дл  очень мощных трансформаторов, дл  трансформаторов меньшей мощности они замен лись добавочными проводами, игравшими роль экранов. Существуют конструкции, в которых ко.мбинируетс  экранирование проводами с некоторыми изменени ми нанравлени  }1авивани  обмоток.Modern lightning-resistant electrical high-voltage devices, for example, transformers, are usually supplied with capacitive screens for windings on the side of the carrier voltage line. Previously, screens were used only for very powerful transformers; for transformers of lower power, they were replaced by additional wires, which played the role of screens. There are constructions in which co-shielded by wires with some changes in the direction of winding.

Известны также грозоупорные трансформаторы, в которых с целью улучшени  распределени  нанр жени}г по обмотке при крутой волне перенапр жени  отдельные секции обмотки нгунтированы последовательно соединенными переменными сонротивлени ми тина тирита.Light-proof transformers are also known, in which, in order to improve the distribution of radiation across the winding during a steep overvoltage wave, individual winding sections are ngunted by series-connected variable resistances.

Предлагаемое изобретение касаетс  таких анпаратов, например трансформаторов , и состоит в том, что, с целью нолучени  желаемой степени равномерного распределени  напр жени  по обмотке при крутой волне перенапр жени , величину переменного сопротивлени  рассчитывают по фор.мулеThe present invention relates to such an apparatus, for example, transformers, and consists in the fact that, in order to obtain the desired degree of uniform voltage distribution across the winding with a steep overvoltage wave, the value of the variable resistance is calculated using a formula

г, (г. - 1,205 о Сg, (city - 1,205 o C

(где 7„ - аргхмент гниерболического синуса, соответствующий желаемой степени равномерности, а углова  частота и С - емкость защищаемой обмотки относительно земли) и носледовательно с переменным сопротивлением включают посто нное сопротивление, ограничивающее величину тока.(where 7 „is the argment of the gnierbolic sine, corresponding to the desired degree of uniformity, and the angular frequency and C is the capacitance of the protected winding relative to the ground) and, consequently, with variable resistance, include a constant resistance limiting the current.

Сущность изобретени  иллюстрируетс  чертежом, на котором представлена схема вк-ночени  переменных и посто нных сопротивлений .The invention is illustrated in the drawing, which shows a night-time diagram of variable and constant resistances.

Предлагаемое изобретение основано на развитой автором теории преобразованп  1еоднородных полей в приб;1иженно однородные иуте.м повыще}П1  активной проводимости изол ции . Аналитическое выражение дл  полей, образующихс  под действием внещних имнульсов (в данном случае волн перенапр жений), включает два члена: один, характерна}ющий стационарный режим прохо111The present invention is based on the theory developed by the author of transforming heterogeneous fields into devices; they are homogeneous and higher} P1 of the active conductivity of the insulation. The analytical expression for the fields formed by the action of external pulses (in this case, overvoltage waves) includes two members: one that characterizes the stationary mode of passage.

SU1242A 1946-03-08 1946-03-08 Thunderproof high-voltage electrical apparatus SU69762A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1242A SU69762A1 (en) 1946-03-08 1946-03-08 Thunderproof high-voltage electrical apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1242A SU69762A1 (en) 1946-03-08 1946-03-08 Thunderproof high-voltage electrical apparatus

Publications (1)

Publication Number Publication Date
SU69762A1 true SU69762A1 (en) 1946-11-30

Family

ID=48247912

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1242A SU69762A1 (en) 1946-03-08 1946-03-08 Thunderproof high-voltage electrical apparatus

Country Status (1)

Country Link
SU (1) SU69762A1 (en)

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