SU630703A1 - Arrangement for current protection of discharge devices at internal breakthroughs - Google Patents
Arrangement for current protection of discharge devices at internal breakthroughsInfo
- Publication number
- SU630703A1 SU630703A1 SU772491608A SU2491608A SU630703A1 SU 630703 A1 SU630703 A1 SU 630703A1 SU 772491608 A SU772491608 A SU 772491608A SU 2491608 A SU2491608 A SU 2491608A SU 630703 A1 SU630703 A1 SU 630703A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- internal
- breakthroughs
- arrangement
- current protection
- discharge devices
- Prior art date
Links
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Description
1one
Изобретение относитс к области защиты электровакуумных приборов от повреждений при внутренних пробо х.This invention relates to the field of protection of electrovacuum devices from damage caused by internal breakdowns.
Известно устройство токовой защиты электронных приборов, содержащее резисторный датчик тока, к которому подключен управл ющий электрод защитного электронного прибора, шунтирующего источник питани 1.A device for current protection of electronic devices is known, which contains a resistor current sensor to which a control electrode of a protective electronic device is connected that shunts a power source 1.
Иедостатком этого устройства вл етс трудность настройки при защите вакуумных приборов.The disadvantage of this device is the difficulty of setting when protecting vacuum devices.
Наиболее близким по техническим средствам и достигаемым результатам вл етс устройство токовой защиты электровакуумных приборов при внутренних пробо х , содержащее резисторный датчик тока, к которому подключены зажимы измерительного моста, другие зажимы которого через импульсный трансформатор иодключены к управл ющему электроду защитного ионного прибора, шунтирующего источник питани 2.The closest in technical means and achievable results is a current protection device for electrovacuum devices for internal breakdowns, containing a resistor current sensor to which the measuring bridge terminals are connected, the other terminals of which through a pulse transformer are connected to the control electrode of the protective ion source shunt 2
Недостатком этого устройства вл етс необходимость в балансировке мостовой схемы при изменении режима работы защищаемого прибора дл сохранени ее чувствительности к току пробо .A disadvantage of this device is the need to balance the bridge circuit when changing the operating mode of the protected device to maintain its sensitivity to the current flow.
С целью повышени надежности при изменении режима работы защищаемого при2In order to increase reliability when changing the operating mode of the protected when 2
бора устройство снабжено двум конденсаторами , шунтирующими два смежных плеча моста, и двум диодами, один из которых включен последовательно с указанными смелсиыми плечами моста, а другой - с первичной обмоткой трансформатора.The device is equipped with two capacitors shunting two adjacent arms of the bridge, and two diodes, one of which is connected in series with the indicated bold arms of the bridge, and the other with the primary winding of the transformer.
tia чертеже представлена схема устройства защиты электровакуумного прибора (II), подключенного к источнику питани (И).The tia drawing shows a diagram of the protection device of an electrovacuum device (II) connected to a power source (I).
Элементы плечей мостовой схемы 1-4 выбраны таким образом, что при нормальной работе прибора обеспечено запертое состо ние диода 5 и ток в обмотке 6 импульсного трансформатора отсутствует. Потенциал точки 7 измен етс в соответствии с изменени ми тока прибора без временной задержки, а нотеициал точки 8 - с задержкой , обусловленной носто нной времени зар да конденсаторов У и 10 через внутpeiuiee сопротивление диода 11.The elements of the shoulders of the bridge circuit 1-4 are selected so that during normal operation of the device, the locked state of diode 5 is ensured and the current in the winding 6 of the pulse transformer is absent. The potential of point 7 varies in accordance with the changes in the current of the device without a time delay, and the notice of point 8 changes with a delay due to the constant charge time of the capacitors Y and 10 through the internal resistance of diode 11.
При пробое прибора резко возрастает ток прибора и напр жение на входе мостовой схемы. Потенциал точки 7 становитс выше потенциала точки 8, диод 5 отпираетс и по обмотке б течет ток. Напр жение , наводимое на вторичной обмотке 12 импульсного трансформатора, вызывает срабатывание защитного прибора 13.During the breakdown of the device, the current of the device and the voltage at the input of the bridge circuit increase sharply. The potential of point 7 becomes higher than the potential of point 8, diode 5 is unlocked and current is flowing through the winding. The voltage induced on the secondary winding 12 of the pulse transformer triggers the protective device 13.
Отстройка защиты при регулированииDetuning protection during regulation
тока прибора обеспечиваетс выбором посто нной времени плечей 1, 2 мостовой схемы .the current of the device is provided by the choice of the time constant of the arms 1, 2 of the bridge circuit.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772491608A SU630703A1 (en) | 1977-06-01 | 1977-06-01 | Arrangement for current protection of discharge devices at internal breakthroughs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772491608A SU630703A1 (en) | 1977-06-01 | 1977-06-01 | Arrangement for current protection of discharge devices at internal breakthroughs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU630703A1 true SU630703A1 (en) | 1978-10-30 |
Family
ID=20711347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772491608A SU630703A1 (en) | 1977-06-01 | 1977-06-01 | Arrangement for current protection of discharge devices at internal breakthroughs |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU630703A1 (en) |
-
1977
- 1977-06-01 SU SU772491608A patent/SU630703A1/en active
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