SU714567A1 - Arrangement for overvoltage protection of static converters - Google Patents
Arrangement for overvoltage protection of static converters Download PDFInfo
- Publication number
- SU714567A1 SU714567A1 SU752123509A SU2123509A SU714567A1 SU 714567 A1 SU714567 A1 SU 714567A1 SU 752123509 A SU752123509 A SU 752123509A SU 2123509 A SU2123509 A SU 2123509A SU 714567 A1 SU714567 A1 SU 714567A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- thyristor
- resistor
- static converters
- arrangement
- overvoltage protection
- Prior art date
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- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
Description
(54) УСТРОЙСТВО ЗАЩИТЫ ОТ ПЕРЕНАПРЯЖЕНИЙ СТАТИЧЕСКИХ ПРЕОБРАЗОВАТЕЛЕЙ дуктивность 10 и тиристор 8-и напр жением обратной пол рности запирает тиристор 8, а ток второго полупёрйода колебаний ЬС-контура замыкаетс через диод 11 и резистор 12. Если §нер) пёрёйа:пр жёнйй тиков, что напр жение на гас щей цепиповторно не достигнет уставки датчика 9, то цикл работы на этом закончитс . Есл энерги перенапр жений велика, то цикл может повторитьс несколько раз, пока не исс кнет запас энергии в источнике перенапр жений. Формул а изобретени Устройство защиты от перенапр жений статических преобразователей содер гащее цепь поглощени энергии перенапр жений, состо щую из после-довательно соединенных гас щего резистора и тиристора, шунтированного 674 обратным диодом с резистором и последовательным LC-контуром, и блок управлени тиристором, о т л ич а ю ш.е е с тем, что, с целью 17Ьвышени надежности путем разгрузки тиристора по напр жению,оно снабжено дополн итёльннми диодами, аноды которых подкл1рчены к гас шему резистору , катод первого - к положительной обкладке конденсатора, а катод второго - к аноду тиристора. Источники информации, прин тые во внимание при экспертизе 1, Глух Е,М, и Зеленов В.Е. Защита полупроводниковых преобразователей . М.,энерги 1970, с. 138, рис. 6-6. 2,Куликова Л,А. Исследование вольтодобавочных устройств инверторного типа дл электрических железных дорог посто нного тока. - МИИТ, 1973 (прототип).(54) DEVICE FOR PROTECTION AGAINST OVERVOLTAGE WITH STATIC CONVERTERS Dactivity 10 and thyristor 8 and reverse-polarity locks the thyristor 8, and the current of the second half-oscillation circuit of the HC-circuit closes through diode 11 and resistor 12. If it is a switch, turn the driver to switch to the circuit of the HC circuit to turn off through the diode 11 and the resistor 12. If the switch is disconnected, turn the driver to disconnect. that the voltage at the damping circuit does not reach the setpoint of sensor 9, then the work cycle is over. If the energy of the overvoltages is large, then the cycle can be repeated several times until the energy source in the overvoltage source is investigated. Formula of the Invention An overvoltage protection device for static converters containing an overvoltage energy absorption circuit, consisting of successively connected quenching resistor and thyristor, shunted by a 674 reverse diode with a resistor and a series LC circuit, and a thyristor control unit, about This is due to the fact that, with the aim of improving reliability by unloading the thyristor by voltage, it is equipped with additional diodes, the anodes of which are connected to the damped resistor, the cathode of the first - to positively capacitor plate, and the cathode of the second - to the anode of the thyristor. Sources of information taken into account in the examination of 1, Deaf E, M, and Zelenov V.E. Protection of semiconductor converters. M., Energy 1970, p. 138, fig. 6-6. 2, Kulikova L, A. Investigation of booster devices of inverter type for electric railways of direct current. - MIIT, 1973 (prototype).
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU752123509A SU714567A1 (en) | 1975-04-14 | 1975-04-14 | Arrangement for overvoltage protection of static converters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU752123509A SU714567A1 (en) | 1975-04-14 | 1975-04-14 | Arrangement for overvoltage protection of static converters |
Publications (1)
Publication Number | Publication Date |
---|---|
SU714567A1 true SU714567A1 (en) | 1980-02-05 |
Family
ID=20615962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU752123509A SU714567A1 (en) | 1975-04-14 | 1975-04-14 | Arrangement for overvoltage protection of static converters |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU714567A1 (en) |
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1975
- 1975-04-14 SU SU752123509A patent/SU714567A1/en active
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