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公开(公告)号：US12112905B2
公开(公告)日：2024-10-08
申请号：US18056347
申请日：2022-11-17
申请人： Southern States, LLC
发明人： Zachary Beecher , Teng Hu , Joseph R Rostron
CPC分类号： H01H33/64 , H01H33/025 , H01H33/42 , H01H33/56
摘要： An alternative gas current pause circuit interrupter with an internally switched resistor-varistor impedance. The varistor limits the voltage rise across the main contactor limiting restrikes, while the resistor limits the current through the interrupter. The values of the resistor and varistor are selected to creates a current pause in the current. In a representative embodiment, the current pause performance is less than 10% of the rated line current for at least 15% of the half-cycle period allowing a plain break butt impedance contactor to be utilized without excessive arcing. For another embodiment the current pause performance is less than 5% of the rated line current for at least 20% of the half-cycle period. SF6 free alternative gas current pause circuit interrupters using a 60% CO2 blend can achieve similar or improved transient voltage performance compared to similarly sized conventional SF6 gas interrupters operating at the same voltage rating.
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公开(公告)号：US11791622B2
公开(公告)日：2023-10-17
申请号：US17741502
申请日：2022-05-11
申请人： Southern States, LLC
发明人： Joseph R Rostron , Jiyuan Fan
CPC分类号： H02H7/222 , H02H1/0007
摘要： A time-admittance fault detection and isolation system includes a series of time-admittance switches spaced apart along the power line, each including a respective time-admittance function. Together, the time-admittance functions define a cascade trip sequence in a downstream-to-upstream direction, which autonomously causes a closest upstream time-admittance switch to a fault to trip to isolate the fault on an upstream side of the fault without communication with the time-admittance switches. The fault detection and isolation system may also include a radio communicating a trip signal from the closest upstream time-admittance switch to the fault to a closest downstream time-admittance switch to the fault. The trip signal causes the closest downstream time-admittance switch to the fault to trip to isolate the fault on a downstream side of the fault. A tie switch closes to back-feed a portion of the electric power line downstream from the closest downstream time-admittance switch to the fault.
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公开(公告)号：USD894135S1
公开(公告)日：2020-08-25
申请号：US29677814
申请日：2019-01-23
申请人： Southern States, LLC
设计人： Joseph R Rostron , Todd Douthit , Teng Hu
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公开(公告)号：US20190277904A1
公开(公告)日：2019-09-12
申请号：US16292039
申请日：2019-03-04
申请人： Southern States, LLC
发明人： Jiyuan Fan , Joseph R. Rostron , Hua Fan , David Moore , Raj Anand , Brian Berner , Buddy Reneau
摘要： Fault detection, isolation and restoration systems for electric power systems using “smart switch” points that autonomously coordinate operations to minimize the number of customers affected by outages and their durations, without relying on communications with a central controller or between the smart switch points. Each smart recloser can be individually programmed to operate as a tie-switch, a Type-A (normal or default type) sectionalizer, or a Type-B (special type) sectionalizer. The Type-A recloser automatically opens when it detects a fault, uses a direction-to-fault and zone-based distance-to-fault operating protocol, and stays “as is” with no automatic opening when power (voltage) is lost on both sides of the switch. The Type-B sectionalizer does the same thing and is further configured to automatically open when it detects that it is deenergized on both sides for a pre-defined time period, and to operate like a tie-switch once open.
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5.发明申请公开(公告)号：US20180321286A1
公开(公告)日：2018-11-08
申请号：US15971991
申请日：2018-05-04
申请人： Southern States, LLC
发明人： Josh Keister , Joseph R. Rostron , Jiyuan Fan , Tan Tran
CPC分类号： G01R19/2513 , G01R15/142 , G01R15/16 , G01R15/18 , G01R15/181 , G01R15/183 , G01R21/06 , G01R21/133 , G06F1/26 , H05K9/0081
摘要： The present invention may be embodied in an in-line high voltage electric power line monitor including a DC current sensor, an AC current sensor, a voltage sensor, an energy harvesting power supply, and a communication device configured. The in-line power line monitor includes a bus bar that connects in series with the monitored power line. For example, the in-line power line monitor may be connected at the junction point between the monitored power line and a support structure, such a sectionalizing switch that supports the monitor positioned between the switch and the power line. A pair of DC current measurement pickups are spaced apart on the bus bar and operatively connected to the microprocessor. The in-line power line monitor also includes an AC current sensor coil and an energy harvesting device (e.g., inductive coil) that surround the bus bar. The AC current sensor coil, the power supply coil and the voltage sensor positioned adjacent to, but spaced apart from, the bus bar. An electronics board pair carries a pair of foil patch voltage sensors and a pair of foil patch antenna elements positioned adjacent to the outer perimeter of the electronics board. Although the in-line power line monitor does not require a separate power supply, the electronics board may carry a backup battery if desired.
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公开(公告)号：US20180321285A1
公开(公告)日：2018-11-08
申请号：US15971968
申请日：2018-05-04
申请人： Southern States, LLC
发明人： Josh Keister , Joseph R Rostron , Jiyuan Fan , Tan Tran
摘要： A high voltage electric power line monitor includes a current sensor, and voltage sensor, an energy harvesting power supply, and communication device. The monitor is configured to be supported by a structure, such a sectionalizing switch disposed within an insulator cylinder. The current sensor coil and an energy harvesting coils are configured to surround and be positioned transverse to the monitored power line with the power line extending through an aperture formed by the current sensor. A foil patch voltage sensor is carried on an electronics board configured to be positioned parallel to the monitored power line, typically below the current sensor. Both the current sensor and the voltage sensor are configured to positioned adjacent to, but spaced apart from, the monitored power line. The sensors are housed within a Faraday cage to shield the current sensor from electromagnetic contamination.
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公开(公告)号：US09823637B2
公开(公告)日：2017-11-21
申请号：US14477995
申请日：2014-09-05
申请人： Southern States, LLC
发明人： Joseph R. Rostron , Fan Jiyuan
摘要： A fault detection and isolation system for distribution electric power lines utilizing a remote reference voltage signal, multiple three-phase current monitors producing asynchronous event data, and a common reference clock. A voltage measurement obtained for a power line at a substation may be synchronized with multiple current phase measurements taken at a power monitoring location along that particular power line. The same voltage measurement may be similarly synchronized with current measurements taken at multiple current monitoring locations along the power line. As a result, the same voltage measurement may be synchronized with current measurements taken multiple tap points along the power allowing a fault on a tapped line segment to be identified, located and isolated. An alternative embodiment utilizes differential current analysis utilizing current measurements from adjacent current monitoring locations correlated to a common reference clock to locate faults and therefore does not require a voltage measurement.
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公开(公告)号：US12119636B2
公开(公告)日：2024-10-15
申请号：US17746416
申请日：2022-05-17
申请人： Southern States, LLC
发明人： Jiyuan Fan , Hua Fan , Tan Tran , Joseph R. Rostron , Paul A Reneau
CPC分类号： H02H3/066 , H02H1/0007 , H02H3/07 , H02H7/26
摘要： Embodiments of the present invention include a test-boost electric power recloser that limits the duration of the test current imposed on the power line to less than two electric power cycles, and preferably less than one electric power cycle, when attempting to reclose into a fault. The test-boost recloser sends a test pulse causing a non-latching close followed by a boost pulse causing a latching close if waveform analysis based on the test close indicates that the fault has likely cleared. The test-boost approach can typically be implemented through a software and calibration upgrade to a conventional single-coil recloser, accomplishing results comparable to a dual-actuator recloser at a much lower cost. The recloser may perform iterative and feedback learning feedback processes to automatically improve its operation over time in response to measured fault and non-fault conditions and its success in predicting whether faults have cleared.
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公开(公告)号：US20240146047A1
公开(公告)日：2024-05-02
申请号：US17978185
申请日：2022-10-31
申请人： Southern States, LLC
发明人： Joseph R Rostron , Rajesh Anand , Jiyuan Fan
摘要： A system or method for monitoring an electric power lightning arrester including an arrester current sensor providing an arrester current measurement, and an arrester voltage sensor providing an arrester voltage measurement. The system detects a switching signature based on the arrester current measurement or the arrester voltage measurement distinguished from background noise and lightning signatures and computes a measured arrester impedance based on the arrester current and arrester voltage measurements. The system then compares the measured arrester impedance to a nominal or historical arrester impedance, determines that the arrester is faltering based on the comparison of the measured arrester impedance to the nominal or historical arrester impedance, and places an order for replacement of the arrester based on the determination that the arrester is faltering. The system operator then replaces the arrester during a fair-weather, typically off-peak period to avoid failure of the arrester during a lightning strike.
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公开(公告)号：US11875953B2
公开(公告)日：2024-01-16
申请号：US17699216
申请日：2022-03-21
申请人： Southern States, LLC
IPC分类号： H01H3/02
CPC分类号： H01H3/02
摘要： A calibration joint for a three-phase electric disconnect switch includes a linkage pipe extending through a lock ring, which includes an axial guide shaft, a threaded shaft, and a self-piercing set screw securing the lock ring to the linkage pipe. The linkage pipe also extends through a clevis housing, which includes an axial joiner shaft and a clevis bracket securing the clevis housing to an operating lever of the disconnect switch. An adjustment rod extending through the axial guide shaft of the lock ring, through the axial joiner shaft of the clevis housing, and engaging with lock nuts allows axial adjustment of the clevis housing with respect to the lock ring, and thus with respect to the linkage pipe. This, in turn, allows fine adjustment of the blade and jaws of an associated phase switch with respect to the switch actuator independent of the other phase switches.
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