US3302094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectifier and voltage divider means utilized as by-pass means for converters
Assignee: ABB Norden Holding AB
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Filing: 1964-05-05
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Granted: 1967-01-31
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Expires: 1984-05-05
Abstract
No abstract record available.
Inventors
- 👤 Boksjo Carl Ingvar
- 👤 Hedenbo Erik Gunnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:20
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/12; H02M7/145; H02M7/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A CONVERTER STATION COMPRISING A PLURALITY OF CONSTITUENT CURRENT CONVERTERS; EACH CONSTITUENT CONVERTER BEING PROVIDED WITH BY-PASS MEANS; SAID BY-PASS MEANS COMPRISING A BY-PASS RECTIFIER HAVING AN ANODE, A CATHODE, AND INTERMEDIATE ELECTRODES, SAID BY-PASS MEANS FURTHER INCLUDING SHORT-CIRCUITING MEANS; A VOLTAGE DIVIDER CONNECTED BETWEEN THE ANODE- AND CATHODE-CONDUCTORS OF SAID BY-PASS RECTIFIER, SAID INTERMEDIATE ELECTRODES BEING CONNECTED TO SAID VOLTAGE DIVIDER; MEANS CONNECTED IN SAID VOLTAGE DIVIDER NEAR THE CATHODE OF SAID BY-PASS RECTIFIER RESPONSIVE TO OPENING OF SAID SHORT-CIRCUITING MEANS TO INCREASE THE VOLTAGE BETWEEN THE CATHODE AND THE ADJACENT INTERMEDIATE ELECTRODE; SAID INCREASED VOLTAGE BEING OF THE SAME ORDER OF MAGNITUDE AS THE VOLTAGE ACROSS AN ARC ARISING UPON OPENING OF SAID SHORT CIRCUIT MEANS; BUT BEING SUBSTANTIALLY LESS THAN THE NORMAL VOLTAGE OVER THE CORRESPONDING CONSTITUENT CONVERTER.
Claim 2
Dependent Claim
132 words
IN A CONVERTER STATION COMPRISING A PLURALITY OF CONSTITUENT CURRENT CONVERTERS; EACH CONSTITUENT CONVERTER BEING PROVIDED WITH BY-PASS MEANS; SAID BY-PASS MEANS COMPRISING A BY-PASS RECTIFIER HAVING AN ANODE, A CATHODE, AND INTERMEDIATE ELECTRODES, SAID BY-PASS MEANS FURTHER INCLUDING SHORT-CIRCUITING MEANS; A VOLTAGE DIVIDER CONNECTED BETWEEN THE ANODE- AND CATHODE-CONDUCTORS OF SAID BY-PASS RECTIFIER, SAID INTERMEDIATE ELECTRODES BEING CONNECTED TO SAID VOLTAGE DIVIDER; MEANS CONNECTED IN SAID VOLTAGE DIVIDER NEAR THE CATHODE OF SAID BY-PASS RECTIFIER RESPONSIVE TO OPENING OF SAID SHORT-CIRCUITING MEANS TO INCREASE THE VOLTAGE BETWEEN THE CATHODE AND THE ADJACENT INTERMEDIATE ELECTRODE; SAID INCREASED VOLTAGE BEING OF THE SAME ORDER OF MAGNITUDE AS THE VOLTAGE ACROSS AN ARC ARISING UPON OPENING OF SAID SHORT CIRCUIT MEANS; BUT BEING SUBSTANTIALLY LESS THAN THE NORMAL VOLTAGE OVER THE CORRESPONDING CONSTITUENT CONVERTER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |