SU781998A1 - Method of checking contamination of contacts of sealed relay - Google Patents
Method of checking contamination of contacts of sealed relay Download PDFInfo
- Publication number
- SU781998A1 SU781998A1 SU792713759A SU2713759A SU781998A1 SU 781998 A1 SU781998 A1 SU 781998A1 SU 792713759 A SU792713759 A SU 792713759A SU 2713759 A SU2713759 A SU 2713759A SU 781998 A1 SU781998 A1 SU 781998A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- contacts
- relay
- contamination
- source
- sealed relay
- Prior art date
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
лем, достаточным дЛн его срабатывани , а затем, отключив источник Lem, enough to trigger it, and then, turning off the source
внешнегб магнитнбго пол , при включенной катушке уп :УавЛеНйй реле и по степени различи измеренных величин переходного сопротивлени определ ют степень вли ни выделений катушки на загр знение контактов.The external magnetic field, with the coil switched on, the WAnLED relay, and the degree of difference in the measured values of transient resistance determine the degree of influence of the coil emissions on the contamination of the contacts.
На чертеже изображено устройство, по сн кадее предлагаемый способ.The drawing shows the device, according to the proposed method.
Электромагнитное реле 1 устанавливают на панель источника 2 посто нного магнитйого пол , котора электрически соедин ет его контакты с измерителем тока 3, реостатом 4, дл задани тока посто нной величины, источником 5 питани и и мерителем.6 падени напр жени , а выводыкатушки управлени реле 1 с источником 7 пйтай .Electromagnetic relay 1 is mounted on a panel of a constant magnetic field source 2, which electrically connects its contacts to a current meter 3, a rheostat 4, to set a constant current, a power source 5 and a measurer. 6 voltage drop, and the output control relay coils 1 with source 7 pytay.
Воздейству на электрс 1агнитное реле 1 магнитным полем источника 2 посто нного магнитного пол , достаточным дл его срабатывани , через замкнутые контакты реле, посредстве источника.5 питани и реостата 4, пропускают неизменный ток, фиксируемый измерителем тока 3, а измерителем 6 напр жени измер ют падение напр жений на них, и по этим измерени м оп15едел ют величину переходного со- . противлени замкнутых контактов. После этого отключают источник 2 посто нного магнитного пол и посредств ам: источника 7 nlBf айй njibnyiSkatot ток через катушку реле 1 достаточный дл его срабатывани . Через врем , необходимое дл прогрева катушки , с помощью источника 5 питани , реостата 4, измерител 3 тока и измерител 6 падени напр жени измер ют Переходное сопротивление замкнутых контактов провер емого реле. Если величина переходного сопротивлени замкнутых контактов реле, измеренна при включенной катушке реле, больше величины переходного сопротивлени , измеренной при отключенной катушке реле и включенном источнике внешнего магнитного пол , делают вывод, что переходное сопротивление замкнутых контактов провер емого реле узеличилось вследствие вьщелений его катушки, нагретой проход щим через нее током.By affecting the electromagnetic relay 1 by the magnetic field of the source 2 of a constant magnetic field, sufficient to trigger it, a closed current measured by the current meter 3 is passed through the relay’s closed contacts, through the power source 5 and the rheostat 4, and the voltage meter 6 measures the voltage drop on them, and according to these measurements, the magnitude of the transient co. resistance to closed contacts. After this, source 2 of a constant magnetic field is disconnected and through a source of 7 nlBf ayy njibnyiSkatot, the current through the coil of relay 1 is sufficient to trigger it. After the time required for the coil to warm up, using a power source 5, a rheostat 4, a current meter 3 and a voltage drop meter 6, the transient resistance of the closed contacts of the tested relay is measured. If the transient resistance of the closed relay contacts, measured with the relay coil on, is greater than the transient resistance measured with the relay coil disconnected and the external magnetic field source turned on, conclude that the transient resistance of the closed contacts of the relay to be tested has decreased due to its heated coil current through it.
Когда сравниваемые величины переходного сопротивлени замкнутых контактов провер емого реле оказываютс одинаковыми/ но выход щимиза норму, заданную техническими услови ми, считают, что причиной загр знени контактов реле вл етс операци сборки реле.When the compared values of contact resistance of the closed contacts of the tested relay turn out to be the same / but coming out of the norm set by the technical conditions, it is considered that the cause of the contamination of the relay contacts is the assembly operation of the relay.
Таким образе, предлагаемый способ определени причин загр знени контактов герметизированного реле существенно отличаетс от известных. При этом с)беспечиваетс возможность определени причины, вли ющей на загр знение контактов герметизированного реле.Thus, the proposed method for determining the causes of contamination of the contacts of the sealed relay is significantly different from the known ones. In this case, c) it is possible to determine the cause affecting the contamination of the contacts of the sealed relay.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792713759A SU781998A1 (en) | 1979-01-15 | 1979-01-15 | Method of checking contamination of contacts of sealed relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792713759A SU781998A1 (en) | 1979-01-15 | 1979-01-15 | Method of checking contamination of contacts of sealed relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU781998A1 true SU781998A1 (en) | 1980-11-23 |
Family
ID=20805610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792713759A SU781998A1 (en) | 1979-01-15 | 1979-01-15 | Method of checking contamination of contacts of sealed relay |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU781998A1 (en) |
-
1979
- 1979-01-15 SU SU792713759A patent/SU781998A1/en active
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