JPS5776A - Protective circuit in thyristor rectifier from surge voltage - Google Patents
Protective circuit in thyristor rectifier from surge voltageInfo
- Publication number
- JPS5776A JPS5776A JP7270780A JP7270780A JPS5776A JP S5776 A JPS5776 A JP S5776A JP 7270780 A JP7270780 A JP 7270780A JP 7270780 A JP7270780 A JP 7270780A JP S5776 A JPS5776 A JP S5776A
- Authority
- JP
- Japan
- Prior art keywords
- capacitors
- series
- thyristor rectifier
- thyristors
- diodes
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/145—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M7/155—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Rectifiers (AREA)
- Power Conversion In General (AREA)
Abstract
PURPOSE:To prevent the breakdown of thyristors by checking the discharge of the charges in capacitors to a main circuit side by connecting diodes to capacitors in series wherein discharging resistors are also connected to the capacitors in parallel. CONSTITUTION:A pair of capacitors 10a, 10b are connected in series with the AC side buses in a thyristor rectifier 16 respectively and doides 12a, 12b are also connected in series with the opposite terminals of the capacitors 10a, 10b in reverse polarity. And the connection points of the diodes 12a, 12b are connected to common fuses 14 for short-circuit protection. Furthermore, the connection points of a pair of the series-connected capacitors 10a, 10b are grounded respectively. In this way, the charges charged in the capacitors will be prevented from discharge to a main circuit side by the diodes and are discharged through discharging resistors 18a, 18b. Therefore, the breakdown of thyristors at the time of turning on the thyristors in the thyristor rectifier can be prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7270780A JPS5776A (en) | 1980-06-02 | 1980-06-02 | Protective circuit in thyristor rectifier from surge voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7270780A JPS5776A (en) | 1980-06-02 | 1980-06-02 | Protective circuit in thyristor rectifier from surge voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5776A true JPS5776A (en) | 1982-01-05 |
Family
ID=13497084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7270780A Pending JPS5776A (en) | 1980-06-02 | 1980-06-02 | Protective circuit in thyristor rectifier from surge voltage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5776A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59132780A (en) * | 1982-11-03 | 1984-07-30 | ベ−・ベ−・ツエ−・アクチエンゲゼルシヤフト・ブラウン・ボヴエリ・ウント・コンパニイ | Power converter |
-
1980
- 1980-06-02 JP JP7270780A patent/JPS5776A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59132780A (en) * | 1982-11-03 | 1984-07-30 | ベ−・ベ−・ツエ−・アクチエンゲゼルシヤフト・ブラウン・ボヴエリ・ウント・コンパニイ | Power converter |
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