ES375902A1 - A solid state power circuit provision. (Machine-translation by Google Translate, not legally binding) - Google Patents
A solid state power circuit provision. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES375902A1 ES375902A1 ES375902A ES375902A ES375902A1 ES 375902 A1 ES375902 A1 ES 375902A1 ES 375902 A ES375902 A ES 375902A ES 375902 A ES375902 A ES 375902A ES 375902 A1 ES375902 A1 ES 375902A1
- Authority
- ES
- Spain
- Prior art keywords
- thyristor
- series circuits
- devices
- current
- thyristor devices
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000007787 solid Substances 0.000 title abstract 2
- 239000003990 capacitor Substances 0.000 abstract 2
- 239000004020 conductor Substances 0.000 abstract 2
- 238000001914 filtration Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/122—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. DC/AC converters
- H02H7/1225—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. DC/AC converters responsive to internal faults, e.g. shoot-through
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Control Of Voltage And Current In General (AREA)
- Power Conversion In General (AREA)
- Protection Of Static Devices (AREA)
- Ac-Ac Conversion (AREA)
Abstract
A solid state power circuit arrangement comprising an electrical potential source and a pair of power supply terminals, a plurality of series circuits connected in parallel circuit relationship between said pair of power supply terminals, including each of said series circuits at least two similarly polarized and series-connected thyristor devices, a reverse-polarized counter-reaction rectifier connected across the load terminals of each thyristor device to at least one of said series circuits, with said power supply terminals connected through said electrical potential source to apply current to said series circuits, a load coupled to a point between said thyristor devices in at least one of said series circuits, a gate circuit to make conductors said thyristor devices in said cir series circuitry and switching devices, for normally removing said thyristor devices, said gate circuit and said switching devices operating in a sequence that controls the current supplied to said load, filter means including a filter capacitor for filtering said electrical potential source connected through said power supply terminals, characterized by means for detecting a high predetermined value of current that occurs only in said power circuit when said thyristor devices are seriously connected in one of said series circuits start driving simultaneously due to a fault, and means operatively connected to all said thyristor devices in at least two of said series circuits and responding to said means to detect a high predetermined value of current to simultaneously make conductors all the dis last-mentioned thyristor positives when the high current value occurs, said filter capacitor resonating with the total effective inductance of the resulting circuit at a frequency that supplies an inverse current to said thyristor devices for a period of time sufficient to put it out of conduction said thyristor devices. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US79454369A | 1969-01-28 | 1969-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES375902A1 true ES375902A1 (en) | 1972-04-16 |
Family
ID=25162941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES375902A Expired ES375902A1 (en) | 1969-01-28 | 1970-01-26 | A solid state power circuit provision. (Machine-translation by Google Translate, not legally binding) |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS507735B1 (en) |
| DE (1) | DE2002943A1 (en) |
| ES (1) | ES375902A1 (en) |
| GB (1) | GB1289632A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2242415C2 (en) * | 1972-08-29 | 1982-06-03 | Brown, Boveri & Cie Ag, 6800 Mannheim | Circuit arrangement for protecting an inverter |
| SE378166B (en) * | 1973-11-26 | 1975-08-18 | Asea Ab | |
| US4628395A (en) * | 1983-11-21 | 1986-12-09 | Mitsubishi Denki Kabushiki Kaisha | Overload protecting circuit for an inverter device |
| JPH0753037B2 (en) * | 1985-01-26 | 1995-06-05 | 株式会社日立製作所 | Inverter protector |
| GB0213098D0 (en) | 2002-06-07 | 2002-07-17 | Trw Ltd | Motor control device |
-
1970
- 1970-01-21 GB GB1289632D patent/GB1289632A/en not_active Expired
- 1970-01-23 DE DE19702002943 patent/DE2002943A1/en active Pending
- 1970-01-26 ES ES375902A patent/ES375902A1/en not_active Expired
- 1970-01-27 JP JP45006812A patent/JPS507735B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1289632A (en) | 1972-09-20 |
| DE2002943A1 (en) | 1970-08-27 |
| JPS507735B1 (en) | 1975-03-28 |
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