US5016135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power supply incorporating circuit breaker and fault detection circuit
Assignee: Schneider Electric USA Inc
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Filing: 1990-07-16
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Granted: 1991-05-14
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Expires: 2010-07-16
Abstract
Abstract A power supply incorporating a fault detection circuit controlling a circuit breaker is described. The power supply is isolated from relatively large applied DC voltages. This isolation is provided by a coupling capacitor in each of the line leads. The tripping energy for the circuit breaker can be provided either directly from the full wave rectifier output, or directly from the line lead or leads. In the case of the former, a reservoir capacitor may be used for storage of charge for tripping of the circuit breaker.
Inventors
- 👤 Henry J. Zylstra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:19
CPC Classifications
H; H02; H02H; H02H1/00; H02H1/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
92 words
A low current power supply incorporating a circuit breaker and fault detection circuit means for supplying tripping energy for said circuit breaker, said power supply being subject to dielectric testing with a high DC voltage, comprising: line and neutral power leads; rectifier means coupled to said line and neutral power leads for supplying power to said fault detection circuit means; and a capacitor, on the order of 0.1 microfarads, individually coupled between each of said line power leads and said rectifier means for protecting said power supply from said high DC voltage.
Claim 2
Dependent Claim
92 words
A low current power supply incorporating a circuit breaker and fault detection circuit means for supplying tripping energy for said circuit breaker, said power supply being subject to dielectric testing with a high DC voltage, comprising: line and neutral power leads; rectifier means coupled to said line and neutral power leads for supplying power to said fault detection circuit means; and a capacitor, on the order of 0.1 microfarads, individually coupled between each of said line power leads and said rectifier means for protecting said power supply from said high DC voltage.
Claim 3
Dependent Claim
21 words
The supply of claim 1 further including an operating solenoid in said circuit breaker coupled to said fault detection circuit means.
Claim 4
Dependent Claim
18 words
The supply of claim 2 wherein said solenoid is connected to said line lead by additional rectifier means.
Claim 5
Dependent Claim
21 words
The supply of claim 3 wherein said fault detection circuit means includes a solid state switch in series with said solenoid.
Claim 6
Dependent Claim
16 words
The supply of claim 4 further including voltage transient suppression means coupled to said line lead.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-13 | 1994-11-12 | 1995-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-13 | 1998-11-12 | 1999-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-13 | 2002-11-12 | 2003-05-14 | $7700.00 | Window Closed / Lapsed |