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公开(公告)号：US20240332921A1
公开(公告)日：2024-10-03
申请号：US18438737
申请日：2024-02-12
申请人： S&C Electric Company
发明人： John French
摘要： An underground power distribution network that clears faults using detected traveling waves. The network includes a power source, a feeder receiving power from the power source, and a plurality of series connected switchgear disposed along the feeder. Each switchgear includes at least one current interrupting device for interrupting current on the feeder, at least one current sensor for measuring current on the feeder, and a controller responsive to current measurement signals from the current sensor. A communications link provides communications between the controllers. The current sensors detect traveling waves as a result of a fault on the feeder and the controllers broadcast messages on the communications link identifying whether the controller receives positive polarity or negative polarity traveling waves that identify whether the fault is downstream or upstream of the switchgear so as to determine which current interrupting device will be opened to clear the fault.
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公开(公告)号：US20240151763A1
公开(公告)日：2024-05-09
申请号：US18483130
申请日：2023-10-09
申请人： S&C Electric Company
CPC分类号： G01R31/086 , G01R19/2513
摘要： A device having a pulse catching function for detecting fault test pulses in an electrical power distribution network in response to a fault. The device includes one or more sensors for measuring current and/or voltage, where the device detects the pulses by loss of voltage followed by identifying one or more of a peak current magnitude of the pulses being greater than a predetermined current value, a pulse duration of the pulses being greater than a predetermined time, a predetermined interval between consecutive pulses and a presence of a pulse/inverse pulse sequence.
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公开(公告)号：US11962133B2
公开(公告)日：2024-04-16
申请号：US17967940
申请日：2022-10-18
申请人： S&C Electric Company
发明人： Goran Djogo
IPC分类号： H02B13/075 , H02B13/035
CPC分类号： H02B13/075 , H02B13/0358
摘要： A grounding switch for grounding a high voltage cable in underground switchgear. The switch includes a solid insulation housing and a fixed electrode extending into one end of the housing and being encapsulated in the solid insulation housing. The switch also includes a ground electrode positioned at an opposite end of the housing from the fixed electrode, an air gap formed in the solid insulation housing between the fixed electrode and the ground electrode, and a movable electrode slidable positionable within the air gap to electrically connect and disconnect the fixed electrode to and from the ground electrode. An annular shielding electrode having a ridge is electrically coupled to the fixed electrode proximate the air gap, and shapes an electric field generated by the fixed electrode to be mostly confined within the solid insulation housing.
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公开(公告)号：US20230400488A1
公开(公告)日：2023-12-14
申请号：US18316327
申请日：2023-05-12
申请人： S&C Electric Company
发明人： Michael Quinlan , Yoav Sharon
IPC分类号： G01R25/00
CPC分类号： G01R25/00
摘要： A system and method for generating phasors having a phase angle and magnitude from a sinusoidal power signal, and using the phasors to generate a frequency and RoCoF of the power signal. The system and method provide improvements over known systems and methods by correcting the frequency of sensor signals, providing a simplified phasor correction equation, reducing errors in a non-recursive DFT algorithm, improving frequency estimation by spacing out DFTs, correcting the sampling rate, providing linear interpolation of frequency and/or providing a variable DFT window length.
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公开(公告)号：US11811213B2
公开(公告)日：2023-11-07
申请号：US17400408
申请日：2021-08-12
申请人： S&C Electric Company
IPC分类号： H02H7/26 , H02H3/06 , H02J3/00 , H02J13/00 , H02H3/08 , H02J50/00 , H01H33/53 , H01H33/66 , H02H1/00 , H02H7/04 , G01R31/08 , H02H3/04
CPC分类号： H02H3/06 , G01R31/086 , H01H33/53 , H01H33/66 , H02H1/0007 , H02H3/042 , H02H3/063 , H02H3/08 , H02H7/04 , H02H7/26 , H02H7/261 , H02J3/0073 , H02J3/00125 , H02J13/0004 , H02J13/00016 , H02J50/001
摘要： A transformer assembly including a transformer that is part of an underground residential power distribution circuit and that provides fault isolation and restoration. The transformer assembly includes an enclosure enclosing a primary winding and a secondary winding. The transformer assembly also includes first and second switching devices mounted to a panel of the enclosure, where each switching device includes an outer housing, a transformer interface electrically coupled to the primary winding, a connector interface electrically coupled to a first connector and a vacuum interrupter having a fixed contact and a movable contact. The fixed contact is electrically coupled to the connector interface or the transformer interface and the movable terminal is electrically coupled to the other connector interface or the transformer interface.
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公开(公告)号：US11779114B2
公开(公告)日：2023-10-10
申请号：US17489956
申请日：2021-09-30
申请人： S&C Electric Company
发明人： Thomas J Dyer , Joseph W Milton
CPC分类号： A47B96/1425 , A47B45/00 , H02B1/012 , A47B2220/0002
摘要： A center post assembly for eliminating sagging of a roof panel in a cabinet, where doors of the cabinet latch to the post assembly. The post assembly includes a base portion and a post portion, where one of the base portion or the post portion includes a plurality of slots and the other one of the base portion or the slot portion includes a plurality of threaded studs. The base portion further includes a first bracket and a jackscrew threaded into a threaded opening in the first bracket and the post portion further includes a second bracket, where the jackscrew engages the second bracket so that rotation of the jackscrew causes the second bracket to move relative to the first bracket so that the studs slide in the slots and increase the length of the post assembly to remove the sag.
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公开(公告)号：US20230291209A1
公开(公告)日：2023-09-14
申请号：US18316374
申请日：2023-05-12
申请人： S&C Electric Company
IPC分类号： H02J4/00 , H04L12/413 , H02J3/00
CPC分类号： H02J4/00 , H02J3/0073 , H04L12/413 , G05B23/0248
摘要： A system for automated reconfiguration of a commodity distribution system is provided. The system includes a plurality of nodes located in the distribution system and a plurality of node controllers. The node controllers control respective nodes in accordance with a first or second operating mode to affect system reconfiguration in response to a fault condition, loading, system optimization, system expansion and combinations thereof.
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公开(公告)号：US11657959B2
公开(公告)日：2023-05-23
申请号：US16556319
申请日：2019-08-30
申请人： S&C Electric Company
IPC分类号： H01F41/02 , H01F41/12 , H01F41/079 , H01F27/06 , H01F41/061 , H01F41/074 , H01F27/04 , H01F27/32
CPC分类号： H01F41/022 , H01F27/06 , H01F41/079 , H01F41/125 , H01F27/04 , H01F27/325 , H01F41/061 , H01F41/074 , Y10T29/4902 , Y10T29/49071 , Y10T29/49073
摘要： A current transformer assembly for harvesting power from a primary conductor, such as a power line, for operating electronics, where the assembly is secured to the conductor while the conductor is connected. The assembly includes a current transformer having a transformer structure with a central opening that accepts the primary conductor and a spindle member for accepting a current transformer magnetic tape operating as the core of the current transformer. The assembly also includes a tape carrier secured to the structure on which the transformer tape is wound, and a winding device operable to unwind the transformer tape from the tape carrier and wind the tape onto the spindle member.
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公开(公告)号：US20230141161A1
公开(公告)日：2023-05-11
申请号：US17963874
申请日：2022-10-11
申请人： S&C Electric Company
发明人： Thomas Olin Fanta , Tsvetan Rusev , Adam Gardner
IPC分类号： H01H33/664 , H01H33/666 , H01H3/60
CPC分类号： H01H33/664 , H01H33/6664 , H01H3/60 , H01H2033/6648
摘要： An anti-bounce dampener assembly for dampening the closing impact force between vacuum interrupter contacts. The dampener assembly includes a dampening spring positioned within a contact adapter, a guide tube extending through the contact adapter and the spring, where the guide tube is coupled to a fixed contact stem, and a bolt extending through the guide tube and being rigidly secured to the fixed contact stem. An impact force caused when the vacuum interrupter contacts contact each other when the vacuum interrupter is closed causes the fixed contact stem, the guide tube, the bolt and the vacuum interrupter to move against the bias of the spring and dampen the impact force. A flexible strap is electrically coupled to the fixed contact stem and the contact adapter, and flexes when the stem moves so as to maintain electrical coupling between the fixed contact stem and the contact adapter.
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公开(公告)号：US11646564B2
公开(公告)日：2023-05-09
申请号：US17524348
申请日：2021-11-11
申请人： S&C Electric Company
发明人： Thomas J. Tobin
CPC分类号： H02H3/066 , H02H1/0007 , H02H7/04
摘要： A fault detection system that that prevents a recloser from reclosing if a fault is determined to be internal to a transformer, where the recloser is configured to perform a reclosing operation in response to detecting overcurrent. The recloser includes a sensor, such as a light sensor, directed towards the transformer and detecting a fault event. If the recloser detects overcurrent, but the sensor does not detect the fault event, it is assumed that the fault is internal to the transformer and the recloser is prevented from reclosing.
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