SU767894A1 - Protection device - Google Patents
Protection device Download PDFInfo
- Publication number
- SU767894A1 SU767894A1 SU782696410A SU2696410A SU767894A1 SU 767894 A1 SU767894 A1 SU 767894A1 SU 782696410 A SU782696410 A SU 782696410A SU 2696410 A SU2696410 A SU 2696410A SU 767894 A1 SU767894 A1 SU 767894A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- protection device
- voltage
- overload
- amplifier
- transistor
- Prior art date
Links
Landscapes
- Amplifiers (AREA)
- Protection Of Static Devices (AREA)
Description
При Ij I на рыходе усилител 2 по вл етсй отрицательное напр жение, которое открывает транзистор 3 и ключевой диод 5. От источника 6 тока компенсации ток компенсации через ключевой диод 5 и транзистор 3 течет навстречу измер емому току I j. По электроизмерительному прибору 1 протекает разность токов 1 - Ь- Вклйчёнйё иёто Й1 ка 6 тШ1 ф;ШЕйсации происходит йртйёЗйШтемьном превышении напр жени над выстав№ёШъШпЪрйгс м , что позвол ет получав стабильную разность токов в электроизмеритель-.When Ij I at the output of the amplifier 2, a negative voltage appears that opens the transistor 3 and the key diode 5. From the compensation current source 6, the compensation current through the key diode 5 and transistor 3 flows towards the measured current I j. According to the electrical measuring device 1, the difference in currents 1 - b is switched on and the voltage is 6 tSHF; SHEISING occurs when the voltage in the electric meter is stable over the electric current.
; ном приборе 1 при многократном превышении; device number 1 with multiple exceeding
измёр: емого трка.measured: skimming string.
По влшие отрицательного напр жени на выходе усилител 2 включает цепь 7 сйгназтйзации перегрузки, что позвол ет контролировать момент срабатывани устройства защиты.Having a negative voltage at the output of the amplifier 2 turns on the circuit 7 to overload the overload, which allows controlling the instant of operation of the protection device.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782696410A SU767894A1 (en) | 1978-12-18 | 1978-12-18 | Protection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782696410A SU767894A1 (en) | 1978-12-18 | 1978-12-18 | Protection device |
Publications (1)
Publication Number | Publication Date |
---|---|
SU767894A1 true SU767894A1 (en) | 1980-09-30 |
Family
ID=20798454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU782696410A SU767894A1 (en) | 1978-12-18 | 1978-12-18 | Protection device |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU767894A1 (en) |
-
1978
- 1978-12-18 SU SU782696410A patent/SU767894A1/en active
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