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111. 发明申请

US20200335293A1 GUIDING PULL RING 审中-公开
公开(公告)号：US20200335293A1
公开(公告)日：2020-10-22
申请号：US16848409
申请日：2020-04-14
申请人： S&C Electric Company
发明人： David Goldman , Thomas Fanta
IPC分类号： H01H33/666 , H01H33/662
摘要： A guiding pull ring member for guiding a unit top contact in a switch assembly into a mounting contact. The guide ring member includes a mounting ring defined in a first plane, a grasping ring coupled to one side of the mounting ring and being defined in a second plane perpendicular to the first plane, and a V-shaped guide piece coupled to the mounting ring at a side opposite from the grasping ring and extending perpendicular to the first plane. The guiding pull ring member has particular application for a solenoid operated vacuum interrupter recloser switch mounted to a utility pole.

112. 发明授权

US10784677B2 Enhanced utility disturbance monitor 有权
公开(公告)号：US10784677B2
公开(公告)日：2020-09-22
申请号：US16176178
申请日：2018-10-31
申请人： S&C Electric Company
发明人： David Glenn Porter
IPC分类号： H02H7/28 , H02H1/00 , G01R19/25 , G01R19/02
摘要： A method for detecting a voltage disturbance on an electrical line coupled to a utility that includes calculating a sliding window actual root mean squared (RMS) voltage for each three-phase power signal, calculating a sliding window filtered RMS average voltage for each actual RMS voltage to identify normal changes in the voltage of the power signals from a nominal voltage, and obtaining a difference between the actual RMS voltage and the RMS average voltage for each of the power signals. The method determines whether the difference between the actual RMS voltage and the RMS average voltage for any of the three-phase signals is greater than a first predetermined percentage, or whether the difference between the actual RMS voltage and the RMS average voltage for any of the three-phase signals is less than a second predetermined percentage, and if so, disconnects a load from the utility.

113. 发明授权

US10784064B2 Reduced size fault interrupter 有权
公开(公告)号：US10784064B2
公开(公告)日：2020-09-22
申请号：US16580412
申请日：2019-09-24
申请人： S&C Electric Company
发明人： Henry Kowalyshen , Keith Benson , Tsvetan Rusev
IPC分类号： H01H33/66 , H01H33/662 , H01H33/666
摘要： A pole unit including a vacuum interrupter switch having a fixed contact extending into one end of a vacuum chamber and being electrically coupled to a first terminal, and a moving contact extending into an opposite end of the chamber. A sliding contact is rigidly coupled to the moving contact and slidably coupled to a second terminal. The pole unit also includes an electromagnetic actuator including a coil, a rod coupled to the sliding contact and a spring positioned against the rod. The pole unit further includes a transmitter coil and a receiver coil that are electromagnetically coupled, where the receiver coil is electrically coupled to the actuator and is electrically isolated from the transmitter coil. In this configuration, the interrupter switch, the actuator and the receiver coil are at a line potential and the transmitter coil is at ground potential.

114. 发明申请

US20200251895A1 FAULT PROTECTION CONFIGURATION FOR A RESETTABLE TRANSFORMER PROTECTOR 审中-公开
公开(公告)号：US20200251895A1
公开(公告)日：2020-08-06
申请号：US16776703
申请日：2020-01-30
申请人： S&C Electric Company
发明人： Thomas J. Tobin
IPC分类号： H02H7/26 , G01R31/08 , H02H3/08 , H02H3/00 , H02H1/04
摘要： Described are curve shapes that may be implemented in a transformer protector that provide enhanced fault protection. A transformer protector curve rating structure relates response curves to the transformer size and simplifies selection of response curves implemented within a transformer protector and associated transformer.

115. 发明申请

US20200251294A1 MANUAL CLOSE ASSIST CONTROL MECHANISM 审中-公开
公开(公告)号：US20200251294A1
公开(公告)日：2020-08-06
申请号：US16744809
申请日：2020-01-16
申请人： S&C Electric Company
发明人： Tsvetan Rusev , Adam Gardner , Michael Stamer
IPC分类号： H01H33/662 , H01F7/18 , H01H33/38 , H01H33/666 , H01H51/22
摘要： A method for closing an actuator in a magnetically actuated switch assembly, where the actuator includes an armature and a winding, and the switch assembly includes a manual actuation device coupled to one end of the armature and a movable terminal in a vacuum interrupter coupled to an opposite end of the armature. The method includes commencing a closing operation of the actuator using the manual actuation device to move the armature towards a closed latch position, detecting that the actuator is being manually closed, and energizing the winding to assist moving the armature to the closed latch position when the armature gets to a predetermined distance from the closed latch position.

116. 发明申请

US20200152408A1 MAGNETIC ASSEMBLY FOR GENERATING BLOW-ON CONTACT FORCE 审中-公开
公开(公告)号：US20200152408A1
公开(公告)日：2020-05-14
申请号：US16667395
申请日：2019-10-29
申请人： S&C Electric Company
发明人： Goran Djogo , Richard George Smith , Daniel Hunter Desmond
IPC分类号： H01H71/24 , H01H33/666
摘要： A magnetic module in a circuit interrupting system is configured to generate a blow-on force that pushes a moving contact toward a stationary contact. The magnetic module includes: a coil conductor having an opening through which a moving stem of the moving contact may move, wherein the coil conductor is electrically connected to the moving stem and a first auxiliary conductor, wherein the coil conductor is configured to allow current to flow from the moving stem to the first auxiliary conductor; a plunger attached to an end of the moving stem; and a first magnetic core shaped to fit around a first section of the coil conductor, wherein the first magnetic core is configured, when current flows through the coil conductor to the first auxiliary conductor, to become magnetized, attract the plunger toward the magnetic core, and cause the moving stem of the moving contact to move toward the stationary contact.

117. 发明授权

US10608393B2 Cable center line adapters for switchgear retro-fit applications 有权
公开(公告)号：US10608393B2
公开(公告)日：2020-03-31
申请号：US16278519
申请日：2019-02-18
申请人： S&C Electric Company
发明人： Bethany K McDearmon , Karl M Bogacz , Michael R Maroney , David J Beseda
IPC分类号： H01R13/62 , H01R31/06 , H02B13/00
摘要： A cable adapter that is operable to electrically couple an existing switchgear cable used for old switchgear to a connection location on new switchgear. The adapter includes an elbow portion that is configured to be electrically coupled to a connector for the switchgear cable and an extension portion that is electrically coupled to the elbow portion. The adapter also includes a cylindrical connection portion electrically coupled to the extension portion and being configured to be electrically coupled to the new switchgear at the proper location. In one embodiment, the elbow portion, the extension portion and the connection portion combine as a single piece member including an internal conductor, a dielectric insulation rubber layer covering the internal conductor and an outer semi-conductive rubber layer covering the insulation layer, where the rubber layers are molded over the conductor.

118. 发明申请

US20200075235A1 SPIRAL CORE CURRENT TRANSFORMER FOR ENERGY HARVESTING APPLICATIONS 审中-公开
公开(公告)号：US20200075235A1
公开(公告)日：2020-03-05
申请号：US16556319
申请日：2019-08-30
申请人： S&C Electric Company
发明人： Alejandro Montenegro , Raphael Guio , Claire Schauble
IPC分类号： H01F41/02 , H01F41/079 , H01F41/12
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.

119. 发明授权

US10468886B2 Electrical systems and related frequency regulation methods 有权
公开(公告)号：US10468886B2
公开(公告)日：2019-11-05
申请号：US15381816
申请日：2016-12-16
申请人： S&C Electric Company
发明人： David Glenn Porter
IPC分类号： H02J3/32
摘要： Electrical systems and related operating methods are provided. One exemplary electrical system includes a sensing arrangement coupled to an electrical grid interface to measure an electrical characteristic of the electrical grid interface, a power conversion module having an output coupled to the electrical grid interface, and a control module coupled to the sensing arrangement and the power conversion module. The control module determines an estimated frequency of the electrical characteristic based on a phase error corresponding to a measured value of the electrical characteristic obtained from the sensing arrangement, determines a frequency correction power command based on a difference between the estimated frequency and a target frequency, and operates the power conversion module in accordance with the frequency correction power command. The frequency correction power command regulates the frequency of the electrical characteristic of the electrical grid interface to the target frequency, for example, by charging or discharging a battery.

120. 发明申请

US20190245347A1 COORDINATED FREQUENCY LOAD SHEDDING PROTECTION METHOD USING DISTRIBUTED ELECTRICAL PROTECTION DEVICES 审中-公开
公开(公告)号：US20190245347A1
公开(公告)日：2019-08-08
申请号：US16164401
申请日：2018-10-18
申请人： S&C Electric Company
发明人： Joseph Matamoros
IPC分类号： H02J3/14
摘要： A method for providing frequency load shedding in a power distribution network. The network includes a number of distributed switch-gear assemblies that control whether AC power is provided to groups of loads. The distributed switch-gear assemblies monitor the frequency of the AC signal to determine if a frequency event is occurring and also determine the direction of the power flow at the time of the event. The switch-gear assembly may open in an underfrequency event only if the loads are drawing power from the network, and the switch-gear assembly may open in an overfrequency event only if there is reverse power flow during the event. In addition, the order of operation of which switch-gear assemblies may open first in response to the frequency event is determined in advance by the location of the switch-gear assembly in the network and a corresponding time delay and coordinated frequency set-points.

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