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公开(公告)号：US20160141123A1
公开(公告)日：2016-05-19
申请号：US14898800
申请日：2013-06-21
发明人： Kevin M. JEFFERIES , Benjamin W. EDWARDS , Richard G. SPANGENBERG , Richard K. WEILER , Matthew L. WHITE
CPC分类号： H01H9/54 , H02H1/0015 , H02H1/0076 , H02H3/023 , H02H3/08 , H02H3/16 , H02H3/334 , H02H5/04 , H02H5/041 , H02H5/08
摘要： A synthetic fault signal generator assembly is remotely located on a branch circuit downstream from a circuit breaker protecting a load. The synthetic fault signal generator assembly is configured to detect an improper circuit condition that is not independently detected, detectable, or actionable by the circuit breaker such as, for example, a load or outlet receptacle specific problem that can lead to equipment damage or property damage if not mitigated. In response to the improper circuit condition being detected, the synthetic fault signal generator assembly generates a synthetic fault signal, which causes the circuit breaker to trip. The synthetic fault signal generator assembly can inject the synthetic fault signal into the branch circuit to provide the synthetic fault signal to the circuit breaker.
摘要翻译： 合成故障信号发生器组件远程位于保护负载的断路器下游的分支电路上。 合成故障信号发生器组件被配置为检测不是由断路器独立地检测，可检测或可操作的不正确的电路状况，例如可能导致设备损坏或财产损坏的负载或插座容器的特定问题 如果不减轻 响应于检测到不正确的电路状况，合成故障信号发生器组件产生合成故障信号，这导致断路器跳闸。 合成故障信号发生器组件可以将合成故障信号注入到分支电路中以向断路器提供合成故障信号。
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公开(公告)号：US20160121747A1
公开(公告)日：2016-05-05
申请号：US14898885
申请日：2013-06-24
发明人： Kevin M. JEFFERIES , Benjamin W. EDWARDS , Matthew L. WHITE , Konstantin A. Filippenko , Richard K. Weiler
IPC分类号： B60L11/18
CPC分类号： B60L11/1825 , B60L11/1816 , B60L11/1818 , B60L2230/12 , H01H3/16 , H02G3/0493 , H02G11/02 , Y02T10/7005 , Y02T10/7094 , Y02T90/121 , Y02T90/128 , Y02T90/14
摘要： A cable reel assembly in an electric vehicle supply equipment (EVSE) having a reel around which a cable is coiled. A shaft supporting the reel bears discs that rotate with the reel, and calipers coupled to the discs stop them and the reel from rotating. The power L1 and L2 conductors in the cable are electrically connected to the discs, and the calipers are electrically connected to the power source for the EVSE so that the calipers provide mechanical and electrical connection when actuated. Optionally, slip rings coupled to the shaft are connected to the control pilot and proximity signal conductors in the cable. Thus, during cable re traction, the control pilot and proximity signals are still provided to the EVSE, but the power conductors are decoupled from the power source. Only when the calipers are actuated to brake the discs is current flow permitted.
摘要翻译： 一种电动车辆供应设备（EVSE）中的电缆卷盘组件，其具有卷绕在其周围的卷轴。 支撑卷轴的轴承带有与卷轴一起旋转的盘，并且连接到盘的卡钳阻止它们并且卷轴不旋转。 电缆中的电源L1和L2导体电连接到盘，并且卡钳电连接到用于EVSE的电源，使得卡钳在致动时提供机械和电连接。 可选地，联接到轴的滑环连接到电缆中的控制导频和接近信号导体。 因此，在电缆牵引期间，仍然向EVSE提供控制导频和接近信号，但是电源导体与电源分离。 只有当卡钳被致动以制动盘片时才允许当前流动。
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公开(公告)号：US20230090370A1
公开(公告)日：2023-03-23
申请号：US17918693
申请日：2021-10-29
发明人： Benjamin W. EDWARDS , Ezequiel SALAS ZAMARRIPA , Tannan Whidden WINTER , Jodi Marie PALMER , Gerardo TORRES GUZMAN
摘要： A visual trip indicator for a circuit breaker is disclosed. The electronic components of a visual trip indicator are enclosed in a module that attaches to the circuit breaker handle or within pocket defined in the circuit breaker housing. The visual trip indicator includes a light source operated by a state machine which clearly indicates which circuit breaker, of a group of circuit breakers or in a poorly illuminated enclosure, is tripped. The visual trip indicator also indicating, by a coded light signal, the approximate remaining life of an independent power supply powering the visual trip indicator.
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公开(公告)号：US20220396168A1
公开(公告)日：2022-12-15
申请号：US17892565
申请日：2022-08-22
发明人： Kevin M. JEFFERIES , Benjamin W. EDWARDS , Matthew L. White , Konstantin A. FILIPPENKO , Richard K. WEILER
摘要： A method, apparatus and computer program product resolve the problem of unbalanced loads in an EVSE cluster of multiple EVSE charging stations. A signal is provided to the EVSEs identifying which phase of the three-phase power source has the highest current. When one of the EVSEs in the cluster determines whether it is connected to an EV's on board charging device, determines whether it is already charging the connected EV, and determines whether the EVSE is using the phase that has the highest current, then the EVSE may transmit a cluster load balancing control signal as a control pilot signal to the EV's onboard charging device to adjust the charging rate of the current that the EV is consuming from the EVSE.
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公开(公告)号：US20210119441A1
公开(公告)日：2021-04-22
申请号：US16654205
申请日：2019-10-16
发明人： Kevin M. JEFFERIES , Benjamin W. EDWARDS , Matthew L. WHITE , Alan E. FREEMAN , Richard K. WEILER
摘要： A progressive protection method automatically adapts a protection trip delay or fault timeout for a motor that is a member of a group of motors performing mutually similar or related tasks, based on the occurrence of a fault in another motor within the group, without requiring manual intervention. If the user requires stringent protection of the motors in a particular application, then the trip delay time for all of the motors in the group, may be shortened in response to recently-detected similar trips of other motors within the group. Alternatively, if the user prefers continuity of service for a particular application, then the trip delay time for all of the motors in the group, may be increased in response to recently-detected similar trips of other motors within the group, based on past experience with the occurrence of fault self-clearing for the motors in the group.
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公开(公告)号：US20210016675A1
公开(公告)日：2021-01-21
申请号：US16516580
申请日：2019-07-19
发明人： Kevin M. JEFFERIES , Benjamin W. EDWARDS , Matthew L. WHITE , Konstantin A. FILIPPENKO , Richard K. WEILER
摘要： A method, apparatus and computer program product resolve the problem of unbalanced loads in an EVSE cluster of multiple EVSE charging stations. A signal is provided to the EVSEs identifying which phase of the three-phase power source has the highest current. When one of the EVSEs in the cluster determines whether it is connected to an EV's on board charging device, determines whether it is already charging the connected EV, and determines whether the EVSE is using the phase that has the highest current, then the EVSE may transmit a cluster load balancing control signal as a control pilot signal to the EV's onboard charging device to adjust the charging rate of the current that the EV is consuming from the EVSE.
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公开(公告)号：US20190195922A1
公开(公告)日：2019-06-27
申请号：US15850988
申请日：2017-12-21
CPC分类号： G01R19/2506 , G01R15/18 , G01R19/2513 , G01R23/02
摘要： A system and method are provided to perform current sensor error compensation. The system and method involve obtaining a current measurement of a current on a circuit from a current sensor; obtaining a voltage measurement of a voltage associated with the current from a voltage sensor; determining a fundamental frequency of the voltage from the voltage measurement; and performing error compensation on the current measurement based on the determined fundamental frequency to produce a corrected current measurement. The current sensor error compensation may be performed to correct current measurements in a motor system, such as in a motor overload relay, at a low cost by using functionality already available in the system.
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公开(公告)号：US20160138980A1
公开(公告)日：2016-05-19
申请号：US14541617
申请日：2014-11-14
发明人： Kevin M. JEFFERIES , Benjamin W. EDWARDS , Matthew L. WHITE , Konstantin A. FILIPPENKO , Richard K. WEILER
CPC分类号： G01K13/00 , B60L3/04 , B60L11/1816 , B60L11/1818 , B60L2230/12 , B60L2240/36 , G01K7/16 , G01K7/24 , H01R13/7137 , H02J7/047 , Y02T10/7005 , Y02T10/7088 , Y02T90/121 , Y02T90/14
摘要： A circuit measures temperature in a charging handle 150 of an electric vehicle charging station (EVSE) 100. A temperature sensor is connected between a control pilot line 115 and ground line G in the charging handle of the EVSE. The control pilot line transmits a square wave signal CP having positive and negative portions, to an electric vehicle, according to the SAE J1772 standard. A temperature monitor 300 in the EVSE, coupled to a pilot signal measurement circuit 230 in the EVSE, measures the negative portions of the square wave signal resulting from the temperature sensor conducting current in response to changes in temperature in the handle. Temperature measurement of the charging handle is achieved without significant added cost or complexity, by reusing existing components in the EVSE, with little or no modification required to EVSE electronics, and minimal modification of the handle.
摘要翻译： 电路测量电动车辆充电站（EVSE）100的充电手柄150中的温度。温度传感器连接在EVSE的充电手柄中的控制导频线115和地线G. 根据SAE J1772标准，控制导频线将具有正和负部分的方波信号CP发送到电动车辆。 EVSE中的与EVSE中的导频信号测量电路230耦合的温度监视器300响应于手柄中的温度变化，测量由温度传感器传导电流产生的方波信号的负部分。 通过重复利用EVSE中的现有组件，EVSE电子设备几乎没有或不需要修改，以及手柄的最小修改，实现了充电手柄的温度测量，而不会显着增加成本或复杂性。
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公开(公告)号：US20160137079A1
公开(公告)日：2016-05-19
申请号：US14546334
申请日：2014-11-18
发明人： Kevin M. JEFFERIES , Benjamin W. EDWARDS , Matthew L. WHITE , Konstantin A. FILIPPENKO , Richard K. WEILER
IPC分类号： B60L11/18
CPC分类号： B60L11/1816 , B60L3/00 , B60L3/04 , B60L11/1809 , B60L11/1818 , B60L11/1824 , B60L2230/12 , B60L2240/36 , H02H3/023 , H02H5/04 , Y02T10/7005 , Y02T10/7088 , Y02T90/121 , Y02T90/14
摘要： A temperature sensor 120 automatically shuts down charging operations in response to a temperature increase in a charging handle 150 of an electric vehicle charging station 100. The temperature sensor is connected between a ground conductor and a high voltage conductor L1 in the charging handle. The charging handle includes a return conductor L2/N. The temperature sensor includes a thermistor R1-NTC that changes its resistance in response to an increase in temperature in the charging handle. A portion of current in the high voltage conductor is diverted to the ground conductor, instead of the return conductor, in response to the thermistor sensing a temperature increase, thereby causing a ground fault detector 160 to trip in the charging station.
摘要翻译： 温度传感器120响应于电动车辆充电站100的充电手柄150中的温度升高而自动关闭充电操作。温度传感器连接在充电手柄中的接地导体和高压导体L1之间。 充电手柄包括一个返回导体L2 / N。 温度传感器包括热敏电阻R1-NTC，其响应于充电手柄中的温度升高而改变其电阻。 响应于热敏电阻感测温度升高，高压导体中的一部分电流被转移到接地导体而不是返回导体，从而使接地故障检测器160在充电站中跳闸。
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公开(公告)号：US20160124024A1
公开(公告)日：2016-05-05
申请号：US14526793
申请日：2014-10-29
CPC分类号： H01F27/42 , G01R15/183 , G01R35/02 , H01F38/28
摘要： A self-correcting current transformer 100 combines a current transformer 113 and self-calibration electronics 115 into one device. The current transformer has a sensor coil 106 with a number of turns that is less than a target number of turns, to cause a secondary current 205 induced in the sensor coil to be greater than a target secondary current 404 corresponding to the target number of turns. A measurement circuit 116 integrated with the transformer, determines an error signal 214 representing how much greater the secondary current is than the target secondary current and outputs the error signal. A current sink circuit 129 integrated with the transformer, shunts an amount of current 216 from the sensor coil, based on the error signal, to reduce a magnitude of the secondary current to match the target secondary current. The measurement circuit and the current sink circuit may be powered by the secondary current.
摘要翻译： 自校正电流互感器100将电流互感器113和自校准电子器件115组合成一个器件。 电流互感器具有传感器线圈106，其具有小于目标匝数的匝数，以使得在传感器线圈中感应的次级电流205大于对应于目标匝数的目标二次电流404 。 与变压器集成的测量电路116确定表示二次电流比目标次级电流多多多少的误差信号214，并输出误差信号。 与变压器集成的电流吸收电路129基于误差信号从传感器线圈分流一定量的电流216，以减小二次电流的大小以匹配目标二次电流。 测量电路和电流吸收电路可以由次级电流供电。
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