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公开(公告)号：US20240258049A1
公开(公告)日：2024-08-01
申请号：US18428090
申请日：2024-01-31
发明人： Félix BERNARD , Olivier GUYON , Matthias MONTBEL
IPC分类号： H01H33/664 , H01H33/02 , H02B13/035
CPC分类号： H01H33/664 , H02B13/035 , H01H33/021
摘要： The invention concerns a disconnector (100) for a GIS comprising:
a pair of permanent contacts (24, 41), one (24) fixed and the other one (41) movable along an axis (AA′), called the axis of the disconnector;
a pair of arcing contacts (22, 42), one (22) fixed and the other one (42) movable;
an insulating part (52) located inside said fixed arcing contacts (22, 42), and means (50) for pressing said insulating part against a front surface of the movable arcing contact (42);
an insulating ring (56) located at the outlet of the fixed arcing contact (22).-
公开(公告)号：US11955793B2
公开(公告)日：2024-04-09
申请号：US17798429
申请日：2021-02-10
摘要： A circuit interruption device including first and second terminals for connection, to a respective electrical circuit or network, a current-conductive branch including first, second, and third current-conductive branch portions successively connected in series between the first and second terminals, the first current-conductive branch portion including a first switching element, the second current-conductive branch portion including a second switching element, the third current-conductive branch portion including a third switching element, each switching element configured to be switchable to selectively permit and block a flow of current in the respective current-conductive branch portion, first and second current bypass paths, the first current bypass path connected across the first and second current-conductive branch portions, the second current bypass path connected across the second and third current-conductive branch portions, and a controller configured to selectively control the switching of the switching elements to control a flow of current between the first and second terminals.
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公开(公告)号：US11942790B2
公开(公告)日：2024-03-26
申请号：US17788244
申请日：2020-12-23
发明人： Omar Jasim , Mohomed Abdul Quium
CPC分类号： H02J3/36 , H02J3/48 , H02J3/381 , H02J2300/28 , Y02E60/60
摘要： A control apparatus is described for controlling a frequency set-point for a first AC network electrically connected to a first HVDC station to regulate active power. The controller has a frequency controller operable in a first mode of operation to determine a frequency set-point for the first AC network based on a measured DC voltage at the first HVDC station. A disturbance detector is configured to monitor the measured value of DC voltage at the first HVDC station for a predetermined characteristic indicative that a variation in measured DC voltage does correspond to a known modulation applied to the DC voltage by a second HVDC station. The frequency controller is configured to determine the frequency set-point for the first AC network based on a measured value of DC voltage if said predetermined characteristic is detected, and to control the frequency set-point to a predetermined default frequency if not detected.
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公开(公告)号：US11927344B2
公开(公告)日：2024-03-12
申请号：US17560587
申请日：2021-12-23
发明人： Ralph Mayer
摘要： A system and method for warmkeeping a steam generator such as a sub-critical steam generator is disclosed. Water extraction piping extracts water from a component of one of the water fill circuits of the sub-critical steam generator. A deaerator heating system having an inventory tank of water mixes the extracted water with the water in the tank, and heats the mix of water to a predetermined temperature level to generate heated deaerated feedwater. Feedwater piping forwards the heated deaerated feedwater at the predetermined temperature level from the deaerator heating system to the water fill circuits of the sub-critical steam generator. The water extraction piping, the deaerator heating system and the feedwater piping operate cooperatively to warmkeep the water fill circuits in accordance with the predetermined temperature level while the sub-critical steam generator is in the unfired stand-by mode of operation.
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公开(公告)号：US20240063836A1
公开(公告)日：2024-02-22
申请号：US17892662
申请日：2022-08-22
CPC分类号： H04B1/38 , H04B1/1018 , H04B1/034
摘要： A transceiver system may include a transmitter, a receiver, an antenna port that is connectable to the transmitter or to the receiver, a filter send port, and a filter return port. The filter ports may be antenna-side or receiver-side, and connectable across at least one filter between the antenna port and the receiver. A transceiver apparatus may include a housing including the transmitter, the receiver, a transceiver switch, and a filter switch assembly in a chamber of the housing. The ports may be accessible through a wall of the housing. A method for filtering a signal include switching, in response to a first signal, a receiver or a transceiver of a transceiver system from an unfiltered path connected to the antenna port to a filtered path connected to the antenna port. The method may further include switching, in response to a second signal, the receiver to the unfiltered path.
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公开(公告)号：US20240022066A1
公开(公告)日：2024-01-18
申请号：US18251381
申请日：2021-11-12
发明人： Ismael Adolfo OCHOA
CPC分类号： H02H7/261 , G01R31/086 , H02H7/268
摘要： A protection circuit, for protecting a whole or part of a HVDC power transmission network, includes a number of sets of sensors, each of which set defines a respective protection zone. The protection circuit also includes a controller that is programmed to evaluate sensor information received from the sensors to determine whether a fault has occurred within a protection zone. The controller is further programmed, in the event of a sensor in a protection zone failing, to dynamically reconfigure the affected protection zone by including a sensor from another protection zone.
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公开(公告)号：US20230386771A1
公开(公告)日：2023-11-30
申请号：US18248956
申请日：2021-10-12
CPC分类号： H01H33/7023 , H01H33/74
摘要： The present application concerns a high-voltage circuit breaker filled with insulating gas having a main axis A, including arcing contacts and an insulating nozzle, wherein an insulating gas flowing from a storage chamber and heated by an electric arc between the two arcing contacts is partitioned into a first gas flow and a second gas flow conducted outside of the insulating nozzle from opposite directions toward a main gas chamber, wherein the first gas flow flows through a first intermediary gas chamber and the second gas flow flows through a second intermediary gas chamber and is partitioned in a first portion directed to the main gas chamber and a second portion directed to an exhaust gas chamber, characterized in that the first portion of the second gas flow is smaller than the second portion of the second gas flow.
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公开(公告)号：US20230335324A1
公开(公告)日：2023-10-19
申请号：US17720160
申请日：2022-04-13
CPC分类号： H01F7/16 , H01F27/28 , H01F7/127 , H01F7/081 , H01F2007/1692
摘要： Air-core reactors for use with power transmission systems are disclosed. An example air-core reactor may include a main coil and an auxiliary coil. The main coil may include a first solenoid having a first diameter and a second solenoid having a second diameter, wherein the first diameter and the second diameter are different. The auxiliary coil may include a third solenoid. The first solenoid and the second solenoid may be arranged concentrically. The auxiliary coil may also be magnetically coupled to the main coil, and the auxiliary coil may be arranged concentric to the main coil.
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公开(公告)号：US20230300170A1
公开(公告)日：2023-09-21
申请号：US17696164
申请日：2022-03-16
发明人： Masoud ABBASZADEH , Mitalkumar KANABAR , Subhrajit ROYCHOWDHURY , Pubudu Eroshan WEERATHUNGA , Balakrishna PAMULAPARTHY
IPC分类号： H04L9/40 , H04L41/16 , G06F1/3206
CPC分类号： H04L63/1466 , H04L63/20 , H04L41/16 , G06F1/3206
摘要： Systems and methods for power system switching element (PSSE) anomaly detection are disclosed. An example PSSE anomaly detection unit may include a power system switching element position estimator (PSSEPE) and a comparison unit. The PSSEPE may be configured to receive a set of measurements and a set of control commands associated with a PSSE, calculate an anomaly confidence score based on the set of measurements and the set of control commands, and estimate a calculated PSSE position based on the set of measurements and the set of control commands. The comparison unit may be configured to receive the calculated PSSE position from the PSSEPE, receive the set of measurements and the set of control commands from the PSSEPE, receive a reported PSSE position associated with the PSSE, and determine a PSSE anomaly decision based on a difference between the reported PSSE position and the calculated PSSE position.
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公开(公告)号：US20230282413A1
公开(公告)日：2023-09-07
申请号：US18004373
申请日：2021-06-22
发明人： Serge TIRILLY
CPC分类号： H01F30/12 , H02J3/1878 , H02H7/04
摘要： The present application concerns a transformer assembly. The transformer assembly includes a step-up transformer, a step-down transformer, and a phase shifting transformer having a source side and a load side connected, respectively, to the step-down transformer and the step-up transformer.
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