Patent US3710189A successfully refreshed from Google Patents.
US3710189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time delay signal device especially for phase comparison protective relaying system
Assignee: ABB Inc USA
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Filing: 1971-07-22
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Granted: 1973-01-09
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Expires: 1991-07-22
Abstract
Abstract A phase comparison relaying network which permits the delaying of the local signal which responds to the alternating current at the local terminal of the alternating current transmission line for an interval which may be greater than the time interval of 180* of the alternating current whereby to compensate for time delay in the transmission from the remote terminal of the alternating current transmission line to the local terminal a signal responsive to the alternating current at the remote terminal when the time of transmission is greater than the 180* interval.
Inventors
- 👤 J Hagberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:45
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/26; H02H3/28; H02H3/30; H02H3/302
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
270 words
A device for time delaying initiating signals which comprise spaced pulses of at least minimum predetermined duration and which pulses sequentially occur at intervals of a first duration, said device acting to delay said initiating signals by an interval of a second duration, said second duration being greater than said minimum duration, said device comprising first and second timers and an actuated device, said timers being effective to time out intervals of third and fourth durations respectively solely as long as an actuating signal is supplied thereto, each said timer being effective to reset to an initial condition upon the removal of said actuating signal, said third duration being less than said first duration, said actuated device being effective upon actuation to change from a first to a second condition and to remain in its said second condition for an interval not in excess of said first duration irrespective of the magnitude of said third duration, means operatively associating said first timer with said initiating signals whereby said first timer is supplied with an actuating signal during each of said minimum intervals of said initiating signal, means operatively connecting said first timer to said actuated device whereby said actuated device is placed in its said second condition as a consequence of each timing out of said first timer and solely for a time period less than said first duration, and means operatively connecting said actuated device to said second timer when said actuated device is in its said second condition and to remove said actuating signal to said second timer when said actuated device is in its said first condition.
Claim 2
Independent Claim
270 words
A device for time delaying initiating signals which comprise spaced pulses of at least minimum predetermined duration and which pulses sequentially occur at intervals of a first duration, said device acting to delay said initiating signals by an interval of a second duration, said second duration being greater than said minimum duration, said device comprising first and second timers and an actuated device, said timers being effective to time out intervals of third and fourth durations respectively solely as long as an actuating signal is supplied thereto, each said timer being effective to reset to an initial condition upon the removal of said actuating signal, said third duration being less than said first duration, said actuated device being effective upon actuation to change from a first to a second condition and to remain in its said second condition for an interval not in excess of said first duration irrespective of the magnitude of said third duration, means operatively associating said first timer with said initiating signals whereby said first timer is supplied with an actuating signal during each of said minimum intervals of said initiating signal, means operatively connecting said first timer to said actuated device whereby said actuated device is placed in its said second condition as a consequence of each timing out of said first timer and solely for a time period less than said first duration, and means operatively connecting said actuated device to said second timer when said actuated device is in its said second condition and to remove said actuating signal to said second timer when said actuated device is in its said first condition.
Claim 3
Dependent Claim
55 words
The combination of claim 1 in which said actuated device will remain in either of its said conditions and means operatively connecting to said actuated device and actuated by said pulsating signals to actuate said actuated device from its said second condition to its said first condition at the end of each said initiating signal.
Claim 4
Dependent Claim
45 words
The combination of claim 1 in which said signals are electrical pulses supplied to a pair of input terminals, said timers are electrical timing networks, said second timer is connected to actuate a pair of output terminals at the end of each said fourth duration.
Claim 5
Dependent Claim
45 words
The combination of claim 3 in which means is provided to actuate said actuated network from its said second condition to its said first condition at the end of each said pulse whereby said minimum interval becomes equal to said duration of said electrical pulse.
Claim 6
Dependent Claim
30 words
The combination of claim 4 in which said timing intervals of each of said timing networks are not greater than substantially one half of said duration of said electrical pulse.
Claim 7
Independent Claim
394 words
A device for time delaying initiating signals having intervals of a first duration by an interval of a second duration greater than said first duration comprising first and second timers and an actuated device, said timers being effective to time intervals of third and fourth durations as long as an actuating signal is supplied thereto, each said timer being effective to reset to an initial condition upon the removal of said actuating signal, said third and said fourth durations being less than said first duration, said actuated device being effective upon actuation to change from a first to a second condition and to remain in its said second condition for at least said first duration, means operatively associating said first timer with said initiating signals whereby said first timer is supplied with an actuating signal during the intervals of said initiating signal, means operatively connecting said first timer to saiD actuated device whereby said actuated device is placed in its said second condition as a consequence of the timing out of said first timer, means operatively connecting said actuated device to said second timer for supplying an actuating signal to said second timer when said actuated device is in its said second condition, said initiating signals being electrical pulses supplied to a pair of input terminals, said timers being electrical timing networks, said second timer being connected to actuate a pair of output terminals at the end of each said fourth duration, a third electrical timing network connected between said actuated network and said input terminals, said third network being actuated by said supplied pulses to initiate its said timing operations, said third timing network being effective as a consequence of its timing out to actuate said actuated network from its said second to its said first condition, a fourth electrical timing network connected to said actuated network, said fourth network being actuated by the actuation of said actuated network into its said second condition to initiate its said timing operation, means actuated by said fourth timing network as a consequence of the timing out of said fourth timing device to energize said output terminals with a produced pulse, and means causing said first and said third timing networks to be energized by alternate ones of said supplied pulses, whereby said output terminals are alternately energized by said second and said fourth timing networks.
Claim 8
Independent Claim
394 words
A device for time delaying initiating signals having intervals of a first duration by an interval of a second duration greater than said first duration comprising first and second timers and an actuated device, said timers being effective to time intervals of third and fourth durations as long as an actuating signal is supplied thereto, each said timer being effective to reset to an initial condition upon the removal of said actuating signal, said third and said fourth durations being less than said first duration, said actuated device being effective upon actuation to change from a first to a second condition and to remain in its said second condition for at least said first duration, means operatively associating said first timer with said initiating signals whereby said first timer is supplied with an actuating signal during the intervals of said initiating signal, means operatively connecting said first timer to saiD actuated device whereby said actuated device is placed in its said second condition as a consequence of the timing out of said first timer, means operatively connecting said actuated device to said second timer for supplying an actuating signal to said second timer when said actuated device is in its said second condition, said initiating signals being electrical pulses supplied to a pair of input terminals, said timers being electrical timing networks, said second timer being connected to actuate a pair of output terminals at the end of each said fourth duration, a third electrical timing network connected between said actuated network and said input terminals, said third network being actuated by said supplied pulses to initiate its said timing operations, said third timing network being effective as a consequence of its timing out to actuate said actuated network from its said second to its said first condition, a fourth electrical timing network connected to said actuated network, said fourth network being actuated by the actuation of said actuated network into its said second condition to initiate its said timing operation, means actuated by said fourth timing network as a consequence of the timing out of said fourth timing device to energize said output terminals with a produced pulse, and means causing said first and said third timing networks to be energized by alternate ones of said supplied pulses, whereby said output terminals are alternately energized by said second and said fourth timing networks.
Claim 9
Dependent Claim
405 words
In a network of the character described, a source of alternating potential, a plurality of timing devices, each said timing device having an input circuit and an output circuit, each said timing device being operable to alter the output condition of its said output circuit solely subsequent to a predetermined time interval after an alteration of the input condition of its said input circuit, a plurality of squaring devices, a bistable flip-flop means having first and second input means and first and second output means, said time interval of each said timing device being less that the time interval of one half cycle of said source potential, means connecting a first of said squaring devices to said source of potential for energization during corresponding alternate half cycles of a first polarity and connecting a second of said squaring devices to said source of potential for energization during corresponding alternate half cycles of a second polarity, means connecting said output circuit of a first of said timing devices to said first input means of said flip-flop means and connecting said input circuit of said first timing device to said first squaring device for energization of said first timing device, each of said half cycles of said first polarity and connecting said output circuit of a second of said timing devices to said second input means of said flip-flop means and connecting said input circuit of said second timing device to said second squaring device for energization of said second timing device, first and second output circuits, means connecting said output circuit of a third of said timing devices to said first output circuit and connecting said input circuit of said second timing device to said first output means and connecting said output circuit of a fourth of said timing device to said second output circuit and connecting said input circuit of said fourth timing device to said second output means of said flip-flop means, said flip-flop means being operable in response to the timing out of said first and said second timing devices to provide first and second energized conditions of its said first and second output means, said flip-flop means being effective when its said output means is in said first condition to initiate the timing out of said third timing device and being effective when its said output means is in said second condition to initiate the timing out of said fourth timing device.
Claim 10
Dependent Claim
405 words
In a network of the character described, a source of alternating potential, a plurality of timing devices, each said timing device having an input circuit and an output circuit, each said timing device being operable to alter the output condition of its said output circuit solely subsequent to a predetermined time interval after an alteration of the input condition of its said input circuit, a plurality of squaring devices, a bistable flip-flop means having first and second input means and first and second output means, said time interval of each said timing device being less that the time interval of one half cycle of said source potential, means connecting a first of said squaring devices to said source of potential for energization during corresponding alternate half cycles of a first polarity and connecting a second of said squaring devices to said source of potential for energization during corresponding alternate half cycles of a second polarity, means connecting said output circuit of a first of said timing devices to said first input means of said flip-flop means and connecting said input circuit of said first timing device to said first squaring device for energization of said first timing device, each of said half cycles of said first polarity and connecting said output circuit of a second of said timing devices to said second input means of said flip-flop means and connecting said input circuit of said second timing device to said second squaring device for energization of said second timing device, first and second output circuits, means connecting said output circuit of a third of said timing devices to said first output circuit and connecting said input circuit of said second timing device to said first output means and connecting said output circuit of a fourth of said timing device to said second output circuit and connecting said input circuit of said fourth timing device to said second output means of said flip-flop means, said flip-flop means being operable in response to the timing out of said first and said second timing devices to provide first and second energized conditions of its said first and second output means, said flip-flop means being effective when its said output means is in said first condition to initiate the timing out of said third timing device and being effective when its said output means is in said second condition to initiate the timing out of said fourth timing device.
Claim 11
Dependent Claim
44 words
The combination of claim 7 in which said flip-flop means comprise a bistable flip-flop device, said first and second input means comprising first and second input terminals of said flip-flop device and said first and second output means comprising first and second output terminals.
Claim 12
Dependent Claim
211 words
In a network of the character described, a pair of input terminals adapted to be energized from a source of periodically pulsing potential, a plurality of timing devices, a bistable means having input means and output means and first and second operating conditions, said flip-flop means being actuated between its said conditions as a consequence of a first and a second signal being supplied to its said input means, each said timing device having a timing interval less than the pulse time of said source potential, first circuit means connecting a first of said timing devices between said input means of said bistable means and said input terminals, said first timing device being effective to place said bistable means in said first operating condition in time delayed relation to the occurrence of said periodic pulses and to place said bistable means in said second operating condition in time delayed relation to the termination of said periodic pulses, a first output circuit, second circuit means connecting a second of said timing devices between said output circuit and said output means of said bistable means and operable to energize said first output circuit in a first time delayed relation to the change in state of said bistable means to its said first condition.
Claim 13
Dependent Claim
211 words
In a network of the character described, a pair of input terminals adapted to be energized from a source of periodically pulsing potential, a plurality of timing devices, a bistable means having input means and output means and first and second operating conditions, said flip-flop means being actuated between its said conditions as a consequence of a first and a second signal being supplied to its said input means, each said timing device having a timing interval less than the pulse time of said source potential, first circuit means connecting a first of said timing devices between said input means of said bistable means and said input terminals, said first timing device being effective to place said bistable means in said first operating condition in time delayed relation to the occurrence of said periodic pulses and to place said bistable means in said second operating condition in time delayed relation to the termination of said periodic pulses, a first output circuit, second circuit means connecting a second of said timing devices between said output circuit and said output means of said bistable means and operable to energize said first output circuit in a first time delayed relation to the change in state of said bistable means to its said first condition.
Claim 14
Dependent Claim
60 words
The combination of claim 9 including a second output circuit, said second circuit means connecting said second timing device between said second output circuit and said output means of said bistable means and operable to energize said second output circuit in a second time delayed relation to the change in state of said bistable means to its said second condition.
Claim 15
Dependent Claim
19 words
The combination of claim 10 in which said first and second time delayed relations are of equal time periods.
Claim 16
Dependent Claim
118 words
The combination of claim 10 in which said bistable means has first and second inputs and first and second outputs, said first timing device comprises a first and a second timer, said first circuit means connects said first timer between said input terminals and said first input of said bistable means and connects said second timer between said input terminals and said second input of said bistable means, said second timing device comprises a third and a fourth timer, said second circuit means connects said third timer between said first output of said bistable means and said first output circuit and connects said fourth timer between said second output of said bistable means and said second output circuit.
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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |