SU90274A1 - Method for investigating contact heating - Google Patents
Method for investigating contact heatingInfo
- Publication number
- SU90274A1 SU90274A1 SU403610A SU403610A SU90274A1 SU 90274 A1 SU90274 A1 SU 90274A1 SU 403610 A SU403610 A SU 403610A SU 403610 A SU403610 A SU 403610A SU 90274 A1 SU90274 A1 SU 90274A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- contacts
- contact heating
- investigating
- heating
- investigating contact
- Prior art date
Links
Description
Предлагаетс способ исследовани нагрева контактов коммутаторных аппаратов.A method for studying the heating of the contacts of switching devices is proposed.
Описываемый способ вл етс более совершенным, по сравнению с известными, так как позвол ет искусственно воспроизвести реальные услови контактов, исключить из исследовани тепло, выдел емое в самой толще контактов, и получить режим нагрева контактов теплом, выдел емым только в переходном сопротивлении.The described method is more perfect than the known ones, since it allows artificially reproducing the actual conditions of the contacts, eliminating the heat generated in the thickness of the contacts from the study and obtaining the heating mode of the contacts with heat generated only in the transient resistance.
j{:in этой цели между копт ктам закладываютс миниатюрные нагревательные элементы площадью в несколько дес тков квадратных миллиметров, выполненные из топкого нихрома, намотанного на тонкой слюд ной пластинке с наружными покрыти ми из очень тонкой слюды. Потребл ема нагревательным элементом мощность контролируетс амперметром и вольметром и подбираетс равной мощности , выдел ющейс в переходномj {: in this purpose, miniature heating elements with an area of several tens of square millimeters, made of top nichrome, wound on a thin mica plate with external coatings of very thin mica, are laid between the copts. The power consumed by the heating element is monitored by an ammeter and a volmeter and is chosen to be equal to the power released in the transition state.
сопротивлении при определенной силе тока и ожидаемом увеличении значени переходного сопротивлени .resistance at a certain current strength and the expected increase in the value of the transient resistance.
Предлагаемый метод дает хорощие результаты при рабочих поверхност х контактов от 30-40 мм и выще как дл «поверхностных, так и дл других видов «линейных контактов.The proposed method gives good results with working contact surfaces from 30–40 mm and higher for both “surface and other types” of linear contacts.
П р е д t с т и 3 о б р с- т с ii п P re d t with t and 3 about b with t with ii p
Способ исследовани нагрева онтактов,о т л и ч а ю ni и и с The method of investigating the heating of ontacts, of tl and h a ni and and with
тем, что. с целью воспроизведени ожидаемого режима нагрева контактов теплом, выдел емым в переходном сопротивлении, между контактами закладывают миниатюрный нагревательный элемент и выдел емую в нем мощность устанавливают равной мощности, тер емой в контактах, согласно расчету, npi действительном режиме работы аппарата .by that. In order to reproduce the expected heating mode of the contacts with heat generated in the transition resistance, a miniature heating element is inserted between the contacts and the power output is set equal to the power lost in the contacts, according to the calculation, npi of the actual operation mode of the device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU403610A SU90274A1 (en) | 1949-08-31 | 1949-08-31 | Method for investigating contact heating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU403610A SU90274A1 (en) | 1949-08-31 | 1949-08-31 | Method for investigating contact heating |
Publications (1)
Publication Number | Publication Date |
---|---|
SU90274A1 true SU90274A1 (en) | 1949-11-30 |
Family
ID=48261350
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU403610A SU90274A1 (en) | 1949-08-31 | 1949-08-31 | Method for investigating contact heating |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU90274A1 (en) |
-
1949
- 1949-08-31 SU SU403610A patent/SU90274A1/en active
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