US3938033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ferroresonant transformer regulator
Assignee: SPX Technologies Inc
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Filing: 1974-05-22
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Granted: 1976-02-10
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Expires: 1994-05-22
Abstract
Abstract An electrical system wherein an electrical condition such as voltage is regulated by means of a static regulator of the ferroresonant type, including a high reactance transformer and wherein the regulator is particularly stable during start-up and under transient conditions by use of a clipping ballast load.
Inventors
- 👤 Henry S. Borkovitz
- 👤 William E. Lucarz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:02
CPC Classifications
G; G05; G05F; G05F3/00; G05F3/02; G05F3/04; G05F3/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
134 words
In an alternating current regulator system resistant to the effects of transients such as occur at start-up, a source of alternating current energy, a high leakage reactance transformer, a primary winding therewith for connection to said source, secondary winding means having means for connection to a load, a magnetic shunt interposed between said primary winding and said secondary winding means, a first capacitor connected in shunt with said secondary winding means, means for minimizing the effects of transients such as occur during start-up comprising rectifier means connected to a portion of said secondary winding means, a second capacitor connected in shunt with the direct current output of said rectifier means and a resistor connected in shunt with said second capacitor, whereby the effects of voltage variation on said load due to transients is minimized.
Claim 2
Dependent Claim
134 words
In an alternating current regulator system resistant to the effects of transients such as occur at start-up, a source of alternating current energy, a high leakage reactance transformer, a primary winding therewith for connection to said source, secondary winding means having means for connection to a load, a magnetic shunt interposed between said primary winding and said secondary winding means, a first capacitor connected in shunt with said secondary winding means, means for minimizing the effects of transients such as occur during start-up comprising rectifier means connected to a portion of said secondary winding means, a second capacitor connected in shunt with the direct current output of said rectifier means and a resistor connected in shunt with said second capacitor, whereby the effects of voltage variation on said load due to transients is minimized.
Claim 3
Dependent Claim
32 words
An alternating current regulator system as defined in claim 1, wherein said secondary winding means comprises a plurality of secondary windings, the load being connected to only one of said secondary windings.
Claim 4
Dependent Claim
25 words
An alternating current regulator system as defined in claim 2, wherein said first capacitor is connected to said one of said plurality of secondary windings.
Claim 5
Dependent Claim
25 words
An alternating current regulator system as defined in claim 2, wherein said rectifier means is connected to the other of said plurality of secondary windings.
Claim 6
Dependent Claim
18 words
An alternating current regulator system as defined in claim 1, wherein said rectifier means comprises a diode bridge.
Claim 7
Dependent Claim
28 words
An alternating current regulator system as defined in claim 1, including housing means wherein the recited system including said means for minimizing the effects of transients is enclosed.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-09 | 1979-08-11 | 1980-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-09 | 1983-08-11 | 1984-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-09 | 1987-08-11 | 1988-02-10 | $7700.00 | Window Closed / Lapsed |