SU769453A1 - Device for automatic testing of insulation - Google Patents
Device for automatic testing of insulation Download PDFInfo
- Publication number
- SU769453A1 SU769453A1 SU782653428A SU2653428A SU769453A1 SU 769453 A1 SU769453 A1 SU 769453A1 SU 782653428 A SU782653428 A SU 782653428A SU 2653428 A SU2653428 A SU 2653428A SU 769453 A1 SU769453 A1 SU 769453A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- insulation
- automatic testing
- leakage resistance
- network
- electric locomotive
- Prior art date
Links
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Testing Relating To Insulation (AREA)
Description
14 и размыкающие контакты 15, 16 силового аппарата (на чертеже не показан).14 and the opening contacts 15, 16 of the power unit (not shown).
Устройство работает следующим образом .The device works as follows.
Исполнительный элемент 12 включитс только тогда, 1когда в его цепи возникает ток, т. е. при подключении и контролируемо сети /7 нагрузки в виде электровоза 18 с диодом //. При этом мост переменного тока 4 будет работать через резистор 14, а через разделительный конденсатор 8 ток не пойдет. Исполнительный элемент /5 отключен .The actuating element 12 is switched on only if 1 when a current arises in its circuit, i.e. when the network is connected and controlled / 7 loads in the form of an electric locomotive 18 with a diode //. In this case, the AC bridge 4 will work through the resistor 14, and the current will not flow through the coupling capacitor 8. Actuator / 5 disabled.
При возникновении в контролируемой сети 17 сопротивлени утечки 19, величина которого ниже критического, диод // и электрОвоз 18 будут шунтироватьс сопротивлением утечки 19, в результате чего значительно увеличитс переменна составл юща тока через резистор 14, а исполнительный элемент 13 включитс .If leakage resistance 19 occurs in the monitored network 17, the magnitude of which is below the critical, diode // and electric 18 will be bridged with leakage resistance 19, as a result of which the variable component of the current through the resistor 14 will increase significantly, and the actuating element 13 will turn on.
Таким образом напр жение питани подаетс в контролируемую сеть 17 только тогда, когда нет недопустимого сопротивлени утечки 19, и в контролируемую сеть 17 включен электровоз 18 с диодом 11. При этом лсполн1ительный элемент 12 должен быть в,ключен, а исполнительный элемент 13 - выключен. Во всех других случа х: электровоза 18 нет и нет сопротивлени утечки 19; электровоза 18 нет, но есть сопротивление утечк,и 19 электровоз 18 есть и есть сопротивление утечки 19; нет напр жени оперативного трка, - на силовой аппарат (на чертеже не показан) подаетс команда неразрещеви подачи напр жени питани в контролируемую сеть 17.Thus, the supply voltage is supplied to the controlled network 17 only when there is no unacceptable leakage resistance 19, and the electric locomotive 18 with a diode 11 is turned on to the controlled network 17. At the same time, the polarizing element 12 must be in, keyed out, and the actuating element 13 is off. In all other cases: locomotive 18 is not and there is no leakage resistance 19; electric locomotive 18 is not, but there is leakage resistance, and 19 electric locomotive 18 is and is leakage resistance 19; There is no line voltage, - the power unit (not shown) is given the command to not break the supply voltage to the controlled network 17.
Применение операции логического умножени состо ний двух исполнительных элементов позвол ет повысить надежность устройства и безопасность работ на подземном транспорте, разреща подачу напр жени в сеть контролируемого участка в момент подключени электровоза и снима его при выезде электровоза из, контролируемого участка.The application of the operation of the logical multiplication of the states of two actuators allows to increase the reliability of the device and the safety of work on the underground transport, permitting the supply of voltage to the network of the controlled area at the time of connecting the electric locomotive and removing it when the electric locomotive leaves the controlled section.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782653428A SU769453A1 (en) | 1978-07-07 | 1978-07-07 | Device for automatic testing of insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782653428A SU769453A1 (en) | 1978-07-07 | 1978-07-07 | Device for automatic testing of insulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU769453A1 true SU769453A1 (en) | 1980-10-07 |
Family
ID=20780819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU782653428A SU769453A1 (en) | 1978-07-07 | 1978-07-07 | Device for automatic testing of insulation |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU769453A1 (en) |
-
1978
- 1978-07-07 SU SU782653428A patent/SU769453A1/en active
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