SU51833A1 - Device to protect generators and other electrical apparatus and machines from internal damage - Google Patents
Device to protect generators and other electrical apparatus and machines from internal damageInfo
- Publication number
- SU51833A1 SU51833A1 SU??-0215A SU215A SU51833A1 SU 51833 A1 SU51833 A1 SU 51833A1 SU 215 A SU215 A SU 215A SU 51833 A1 SU51833 A1 SU 51833A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- machines
- electrical apparatus
- internal damage
- generators
- photocell
- Prior art date
Links
- 239000000779 smoke Substances 0.000 description 5
- 230000004224 protection Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Description
Большинство аварий в генераторе начинаютс с местного повреждени изол ции, сопровождающегос перегревом изол ции в этом месте и значительным дымообразованием, обусловленным термическим разложением изолирующего лака. Лишь после этого происходит сама авари : пробой, междувитковое короткое замыкание, замыкание на корпус и т. п.Most accidents in the generator begin with local insulation damage, which is accompanied by overheating of the insulation in this place and significant smoke generation due to thermal decomposition of the insulating varnish. Only after that the accident occurs: breakdown, inter-turn short-circuit, short-circuit to the case, etc.
Существующие электрические защиты (максимальна , диференциальна , земл на ) отключают генератор лишь после аварии, когда она достигла достаточных дл срабатывани реле размеров . Защита, отключающа генератор в начале дымообразовани , была бы в состо нии предупредить аварию аналогично защите Бухгольца дл трансформаторов.Existing electrical protections (maximum, differential, earth) disconnect the generator only after an accident, when it has reached a size sufficient to operate the relay. Protection, disabling the generator at the beginning of smoke generation, would be able to prevent an accident in the same way as Buchholz protection for transformers.
Дл сигнализации о дымообразовании за границей в 1929 г. была разработана схема с диференциальным включением термоэлементов, под названием „защита Бухгольца дл генераторов . Вследствие своей сложности схема эта не получила широкого распространени .In order to signal smoke generation abroad, in 1929 a circuit was developed with differential switching of thermoelements, called Buchholz protection for generators. Due to its complexity, this scheme is not widespread.
Впоследствии был разработан р дSubsequently was developed by
схем с фотореле, основанных на затемнении освещаемого световым пучком фотоэлемента по вл ющимс в вентил ционном канале дымом, что приводит к отключению генератора. Подобна схема была испытана на Ивановской ТЭЦ. Испытание показало, что она часто дает ложные отключени , которые вызываютс запылением стекла фотоэлемента, лампы или линз оптической системы, перегоранием лампы осветител , падением напр жени питани лампы или фотоэлемента или, наконец, изменением характеристики фотоэлемента вследствие „старени фотокатода.circuits with photorelays based on the darkening of the photocell illuminated by the light beam by smoke appearing in the ventilation channel, which leads to the disconnection of the generator. A similar circuit was tested at the Ivanovo CHP. The test showed that it often gives false trips that are caused by dusting the glass of the photocell, the lamp or lens of the optical system, the blown lamp of the illuminator, the voltage drop of the lamp supply or the photocell or, finally, a change in the photocell characteristic.
Согласно изобретению предлагаетс помещать фотоэлемент в не освещенном пространстве и косвенно воздействовать на него световым лучом только при дымообразовании внутри генератора за счет эффекта Тиндал , воспроизводимого оптическим приспособлением , установленным между осветителем и фотоэлементом.According to the invention, it is proposed to place the photocell in an unlit space and indirectly influence it with a light beam only during smoke generation inside the generator due to the Tyndall effect reproduced by an optical device mounted between the illuminator and the photocell.
Как видно из чертежа, на котором схематически изображено предлагаемое устройство, осветитель / посылает через оптическое приспособлек авторскому свидетельству Я. М. № 5183) ЧервоненкисAs can be seen from the drawing, which schematically shows the proposed device, the illuminator / sends it through an optical device to the copyright certificate of Ya. M. No. 5183) Chervonenkis
SS
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU??-0215A SU51833A1 (en) | 1936-09-05 | 1936-09-05 | Device to protect generators and other electrical apparatus and machines from internal damage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU??-0215A SU51833A1 (en) | 1936-09-05 | 1936-09-05 | Device to protect generators and other electrical apparatus and machines from internal damage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU51833A1 true SU51833A1 (en) | 1936-11-30 |
Family
ID=52016344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU??-0215A SU51833A1 (en) | 1936-09-05 | 1936-09-05 | Device to protect generators and other electrical apparatus and machines from internal damage |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU51833A1 (en) |
-
1936
- 1936-09-05 SU SU??-0215A patent/SU51833A1/en active
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