FR2379617A1 - Switching system for maintaining electrolysis during voltage redn. - using timed cut=out switches and automatic charge control circuits - Google Patents
Switching system for maintaining electrolysis during voltage redn. - using timed cut=out switches and automatic charge control circuitsInfo
- Publication number
- FR2379617A1 FR2379617A1 FR7801698A FR7801698A FR2379617A1 FR 2379617 A1 FR2379617 A1 FR 2379617A1 FR 7801698 A FR7801698 A FR 7801698A FR 7801698 A FR7801698 A FR 7801698A FR 2379617 A1 FR2379617 A1 FR 2379617A1
- Authority
- FR
- France
- Prior art keywords
- charge control
- cut
- control circuits
- electrolysis
- redn
- 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.)
- Withdrawn
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
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/062—Avoiding or suppressing excessive transient voltages or currents
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
The functioning of electrolysis rectifiers are maintained during voltage reductions or short interruptions in supply. To reduce the excess current which occurs when the supply returns to normal, and thus eliminating the need to disconnect the rectifier, a cut-out switch is used with a changing time of less than two seconds which does not operate when the voltage reduction or interruption is very short. The excess current which occurs when the supply returns is detected by a current transducer and communicated to automatic charge control circuits which produce a reduction in the electric charge using coils. The circuits incorporate a cut-out switch which modifies its position until the current is re-established at the normal level without damaging the electrolysis equipment. It is unnecessary to disconnect groups of rectifiers and to stop the electrolysis. The necessity of removing and neutralising products containing an unacceptable content of impurities is avoided. The time and effort requried for readjustment after each voltage variation is avoided, as is loss of production.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO7789265A RO66238A2 (en) | 1977-02-03 | 1977-02-03 | METHOD FOR MAINTAINING RECTIFIERS FOR ELECTROLYSIS AT VOLTAGE DROP OR SHORT-TERM INTERRUPTIONS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2379617A1 true FR2379617A1 (en) | 1978-09-01 |
Family
ID=20097292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7801698A Withdrawn FR2379617A1 (en) | 1977-02-03 | 1978-01-20 | Switching system for maintaining electrolysis during voltage redn. - using timed cut=out switches and automatic charge control circuits |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE863518A (en) |
| DD (1) | DD135430A5 (en) |
| DE (1) | DE2803871A1 (en) |
| FR (1) | FR2379617A1 (en) |
| IT (1) | IT1109512B (en) |
| RO (1) | RO66238A2 (en) |
| SE (1) | SE7801251L (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006000559A2 (en) * | 2004-06-24 | 2006-01-05 | Siemens Aktiengesellschaft | Process for determining the charging state of a diode rectifier of a frequency converter |
-
1977
- 1977-02-03 RO RO7789265A patent/RO66238A2/en unknown
-
1978
- 1978-01-20 FR FR7801698A patent/FR2379617A1/en not_active Withdrawn
- 1978-01-30 DE DE19782803871 patent/DE2803871A1/en not_active Withdrawn
- 1978-01-31 BE BE184792A patent/BE863518A/en unknown
- 1978-02-01 DD DD78203506A patent/DD135430A5/en unknown
- 1978-02-02 IT IT19928/78A patent/IT1109512B/en active
- 1978-02-02 SE SE7801251A patent/SE7801251L/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006000559A2 (en) * | 2004-06-24 | 2006-01-05 | Siemens Aktiengesellschaft | Process for determining the charging state of a diode rectifier of a frequency converter |
| WO2006000559A3 (en) * | 2004-06-24 | 2006-04-13 | Siemens Ag | Process for determining the charging state of a diode rectifier of a frequency converter |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2803871A1 (en) | 1978-08-10 |
| IT7819928A0 (en) | 1978-02-02 |
| BE863518A (en) | 1978-05-16 |
| DD135430A5 (en) | 1979-05-02 |
| RO66238A2 (en) | 1983-02-01 |
| RO66238B1 (en) | 1983-01-30 |
| SE7801251L (en) | 1978-08-04 |
| IT1109512B (en) | 1985-12-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW364218B (en) | Method of charging a secondary battery and apparatus for the same | |
| FR2379617A1 (en) | Switching system for maintaining electrolysis during voltage redn. - using timed cut=out switches and automatic charge control circuits | |
| ES470453A1 (en) | Speed setting and control system for universal motors | |
| JPS54156642A (en) | Copying apparatus | |
| GB1529162A (en) | Solid state on-delay timer | |
| ES470476A1 (en) | Traction motor current control apparatus | |
| JPS5778385A (en) | Digital control system for dc motor | |
| FR2239773A1 (en) | Electric battery charger - has initial intensive charging followed by two levels at reduced charging | |
| JPS5547501A (en) | Adjusting meter | |
| JPS5746685A (en) | Starter for rotary electric machine | |
| JPS5795185A (en) | Starting device for rotary electric machine | |
| JPS53107635A (en) | Controller for dc power transmission system | |
| SU749947A1 (en) | Thyristor current source for electrolytic iron-plating | |
| JPS5395562A (en) | Switch | |
| JPS56141776A (en) | Protection circuit of thyristor | |
| JPS545519A (en) | Voltage controller for ac generator | |
| JPS56145791A (en) | Controller for shunt motor | |
| JPS57182222A (en) | Power source circuit | |
| JPS53133717A (en) | Controller for dc motor | |
| JPS543224A (en) | Ac feeder | |
| HU185780B (en) | Method for switching off the short-circuit current of high-voltage apparatuses, furthermore apparatus for implementing thereof | |
| GB1290810A (en) | ||
| JPS57178470A (en) | Terminal feeding system | |
| JPS5746684A (en) | Starter for rotary electric machine | |
| JPS543225A (en) | Ac feeder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |