US4392064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unballasting relays
Assignee: Individual
•
Filing: 1981-01-26
•
Granted: 1983-07-05
•
Expires: 2001-01-26
Abstract
Abstract The present invention relates to unloading relays mounted in modulation circuits of the allocated power by modification by telecontrol of the tripping threshold of the breaker. A preceding signal or the telecontrol signal of the level of the breaker detects, by a modified contactor 15, the assigned power (by the relay 12) of the unloading relay 16. The invention permits adapting unloading relays to modulation networks of the allocated power.
Inventors
- 👤 Rosette Alberti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:08
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/74; H01H71/7427; H02; H02J; H02J13/00; H02J13/13; H02J13/1311; H02J13/1313; H02J13/1315; H02J13/18; H02J13/34; Y; Y02; Y02B; Y02B90/00; Y02B90/20; Y02E; Y02E60/00; Y04; Y04S; Y04S10/00; Y04S10/50; Y04S10/52; Y04S40/00; Y04S40/12; Y04S40/121
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
77 words
A process for using an electrical network provided with a modification of the power available to the user by telecontrol through a control signal emitted in the network to control the modification of the threshold of the tripping of circuit breakers, comprising emitting a signal in the network substantially simultaneously with the control signal for modification of the threshold of tripping the circuit breakers, to modify the control power or operating level of the associated unloading relay.
Claim 2
Dependent Claim
77 words
A process for using an electrical network provided with a modification of the power available to the user by telecontrol through a control signal emitted in the network to control the modification of the threshold of the tripping of circuit breakers, comprising emitting a signal in the network substantially simultaneously with the control signal for modification of the threshold of tripping the circuit breakers, to modify the control power or operating level of the associated unloading relay.
Claim 3
Dependent Claim
49 words
A process of using an electrical network according to claim 1, in which said signal to modify the control power of the unloading relay is different from the control signal which control the modification of the threshold of tripping the circuit breakers and is emitted prior to the latter.
Claim 4
Dependent Claim
41 words
An unloading relay having a power detector, comprising a control signal detector which detects a control signal emitted in a network, and means controlled by said signal detector to modify the operating threshold of the power detector of the unloading relay.
Claim 5
Dependent Claim
41 words
An unloading relay having a power detector, comprising a control signal detector which detects a control signal emitted in a network, and means controlled by said signal detector to modify the operating threshold of the power detector of the unloading relay.
Claim 6
Dependent Claim
34 words
An unloading relay according to claim 3, in which the control signal detector opens upon detection of the control signal a calibrated shunt mounted in parallel with the power detector of the unloading relay.
Claim 7
Dependent Claim
87 words
An electrical network comprising a circuit breaker, a first control signal detector which detects a first control signal emitted in the network, means controlled by said signal detector to modify the tripping threshold of the circuit breaker by an unloading relay comprising a power detector downside of a circuit-breaker and by a second control signal detector which detects a second control signal emitted in the network, and means controlled by said second signal detector to modify the operating threshold of the power detector of the unloading relay.
Claim 8
Dependent Claim
87 words
An electrical network comprising a circuit breaker, a first control signal detector which detects a first control signal emitted in the network, means controlled by said signal detector to modify the tripping threshold of the circuit breaker by an unloading relay comprising a power detector downside of a circuit-breaker and by a second control signal detector which detects a second control signal emitted in the network, and means controlled by said second signal detector to modify the operating threshold of the power detector of the unloading relay.
References Cited (Backward Citations)
FR1147621A
Cited
US3643160A
Cited
FR2147841B1
Cited
US3894244A
Cited
DE2404234C2
Cited
US4023043A
Cited
US4152605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-04 | 1987-01-03 | 1987-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-04 | 1991-01-03 | 1991-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-04 | 1995-01-03 | 1995-07-05 | $7700.00 | Window Closed / Lapsed |