公开(公告)号：US20060235631A1

公开(公告)日：2006-10-19

申请号：US11106889

申请日：2005-04-15

Applicant: Ronald Carter

Inventor： Ronald Carter

IPC: G06F19/00

CPC classification number: G01R19/2513 ,  G01R21/133

Abstract: A digital power metering system reduces spectral leakage when determining the frequencies present in a power signal by a technique that includes sampling the signal and performing a transformation from the time domain to the frequency domain. The system initially measures the fundamental frequency of the power signal, and samples the power signal at a known sampling rate to produce digital sample values representing the power signal. The system then determines whether the known sampling rate is within a preselected range of a rate that is coherent with the measured fundamental frequency. If the answer is negative, then the system resamples the signal at a rate that is coherent with the measured fundamental frequency to produce resample values representing the signal, so that the frequencies present in the power signal can be determined from the resample values.

Abstract translation: 当通过包括对信号进行采样并执行从时域到频域的变换的技术来确定功率信号中存在的频率时，数字功率计量系统减少频谱泄漏。 系统最初测量功率信号的基频，并以已知的采样率对功率信号进行采样，以产生表示功率信号的数字采样值。 然后，系统确定已知采样率是否在与所测量的基频一致的速率的预选范围内。 如果答案为负数，则系统以与所测量的基本频率相干的速率重新采样信号以产生表示该信号的重新采样值，从而可以从重采样值确定存在于功率信号中的频率。

公开(公告)号：US07117044B2

公开(公告)日：2006-10-03

申请号：US10748741

申请日：2003-12-30

Applicant: Mark John Kocher ,  Gerald Benjamin Carson

Inventor： Mark John Kocher ,  Gerald Benjamin Carson

IPC: G05B13/02

CPC classification number: G05B11/42 ,  G05B11/32

Abstract: A multivariable control system provides regulation for a plurality of control variables of interest based on selecting a particular one of the variables for regulation relative to a corresponding setpoint, while continuing to monitor the other variables and switching regulation control over to another one of the variables as needed to maintain all of them within their allowed ranges. The system includes one or more PID regulators that tune themselves for the particular variables selected for regulation control. In an exemplary embodiment, the control system is configured for controlling an alternative energy system, wherein it includes one or more power flow devices that control power flow between electrical energy storage devices (EESDs) and a common dc bus and/or power flow between the dc bus and an external ac electrical system.

Abstract translation: 多变量控制系统基于选择用于相对于相应设定点的调节的特定变量来提供对多个感兴趣的控制变量的调节，同时继续监视其他变量并将调节控制切换到另一个变量作为 需要将其全部保持在允许的范围内。 该系统包括一个或多个PID调节器，为调节控制选择的特定变量调整自身。 在示例性实施例中，控制系统被配置用于控制替代能量系统，其中它包括一个或多个功率流装置，其控制电能存储装置（EESD）之间的功率流和公共直流总线和/ 直流母线和外部交流电气系统。

公开(公告)号：US07078925B2

公开(公告)日：2006-07-18

申请号：US10385962

申请日：2003-03-11

Applicant: Avery Long

Inventor： Avery Long

IPC: G01R31/26

CPC classification number: G01R21/133

Abstract: A three-phase monitoring system for detecting and dynamically correcting wiring errors in an electrical circuit. The system includes a voltage divider circuit and a current transformer circuit connected to three voltage channels and three current channels, respectively. Samples of the voltages and currents are held in respective sample and hold circuits, which are provided to an analog multiplexer. The analog multiplexer is controlled by a processor, and is coupled to gain and filter circuitry, sample and hold circuitry, and to an analog-to-digital converter (ADC). The ADC is connected to the processor, which analyzes the power factor for a given voltage/current pair. If the power factor is outside of an expected range, the processor dynamically changes the addresses assigned to the channels such that the data arrives in the processor in an expected sequence.

Abstract translation: 一种用于检测和动态校正电路中接线误差的三相监控系统。 该系统包括分别连接到三个电压通道和三个电流通道的分压器电路和电流互感器电路。 电压和电流的样本保持在提供给模拟多路复用器的相应采样和保持电路中。 模拟多路复用器由处理器控制，并且耦合到增益和滤波电路，采样和保持电路以及模数转换器（ADC）。 ADC连接到处理器，它分析给定电压/电流对的功率因数。 如果功率因数超出预期范围，则处理器动态地改变分配给通道的地址，使得数据以期望的顺序到达处理器。

公开(公告)号：US07068480B2

公开(公告)日：2006-06-27

申请号：US10107621

申请日：2002-03-27

Applicant: Kon B. Wong ,  Gary W. Scott

Inventor： Kon B. Wong ,  Gary W. Scott

IPC: H02H9/08

CPC classification number: H02H1/0015 ,  G01R31/14 ,  H02H3/44

Abstract: A method of determining whether arcing is present in an electrical circuit includes sensing a change in current in the circuit and developing a corresponding input signal, analyzing the input signal to determine the presence of broadband noise in a predetermined range of frequencies, and producing a corresponding output signal, and processing the input signal and the output signal in a predetermined fashion to determine whether an arcing fault is present in the circuit. The processing includes determining a type of load connected to the electrical circuit, based at least in part upon the input signal and the output signal.

公开(公告)号：US06958671B2

公开(公告)日：2005-10-25

申请号：US09998837

申请日：2001-11-15

Applicant: William Weizhong Chen ,  R. Kent Crawford

Inventor： William Weizhong Chen ,  R. Kent Crawford

IPC: H01H9/42 ,  H01H50/54 ,  H01H51/22

CPC classification number: H01H9/42 ,  H01H1/5822 ,  H01H50/546 ,  H01H2033/163

Abstract: The present invention provides an electrical contactor for connecting and disconnecting an electrical power source to an electrical device wherein the electrical power source is electrically connected to a line terminal having a line terminal electrical contact and the electrical device is electrically connected to a load terminal electrical contact. The electrical contactor contains a plurality of electrical contacts which contact the line and load terminal electrical contacts. A positive temperature coefficient resistivity element is electrically connected between at least one of the terminals and the electrical contactor contacts to provide arc suppression during the opening and closing of the electrical contacts

Abstract translation: 本发明提供一种用于将电源连接到电气设备的电接触器，其中电源电连接到具有线路端子电接触的线路端子，并且电气设备电连接到负载端子电接触 。 电接触器包含多个接触线路并加载端子电触头的电触头。 正温度系数电阻元件电连接在至少一个端子和电接触器触点之间，以在电触点的打开和闭合期间提供电弧抑制

公开(公告)号：US20030232532A1

公开(公告)日：2003-12-18

申请号：US10172727

申请日：2002-06-14

Applicant: Square D Company.

Inventor： Rodney J. West ,  Glenn S. O'Nan

IPC: H01R004/60

CPC classification number: H01R13/514 ,  H01R31/00

Abstract: A field convertible tap-off base for an electrical busway distribution fitting. The field convertible tap-off base includes an AC phase termination side and a field configurable side having first and second configurable electrical terminals. The AC phase termination side provides terminals for connecting three AC phase conductors of a busway electrical distribution system to any one of a number of load bases configured for electrical components such as circuit breakers, switches, fuses, lugs or other special functions. The first and second configurable terminals permit two additional busway electrical conductors to be used for neutral, high current capacity neutral, secondary ground, DC current or other special functions which might be defined in the busway electrical distribution system.

Abstract translation: 用于电气母线槽配电配件的现场可转换离合器底座。 现场可转换分接基座包括AC相位终端侧和具有第一和第二可配置电气端子的现场可配置侧。 交流相位终端侧提供端子，用于将总线通路配电系统的三个AC相导体连接到为诸如断路器，开关，保险丝，凸耳或其他特殊功能的电气部件配置的多个负载基座中的任何一个。 第一和第二可配置端子允许两个额外的母线通道电导体用于中性，高电流容量中性线，二次地线，直流电流或其它可在母线路配电系统中定义的特殊功能。

公开(公告)号：US20030230426A1

公开(公告)日：2003-12-18

申请号：US10172821

申请日：2002-06-14

Applicant: Square D Company

Inventor： Rodney J. West ,  Glenn S. O'Nan

IPC: H02G003/00

CPC classification number: H02G5/08 ,  H01R13/5219 ,  H01R13/631 ,  H01R25/161

Abstract: A sprinkler and drip resistant tap-off base for an electrical busway distribution system. The tap-off base includes an overmolded perimeter seal providing a liquid resistant seal between the busway housing and the tap-off base and between the tap-off base and a tap-off unit installed on the tap-off base.

Abstract translation: 用于电气母线槽配电系统的喷头和防滴水基座。 脱水基底包括一个包覆成型的周边密封，在总线通道外壳和脱水基座之间以及分接基座和安装在分接器基座上的分接单元之间提供防液体密封。

公开(公告)号：US20030141764A1

公开(公告)日：2003-07-31

申请号：US10058863

申请日：2002-01-28

Applicant: Square D Company

Inventor： Scott R. Brown ,  Mark J. Kocher ,  Roy S. Colby ,  Robert J. Dwulet ,  Timothy B. Phillips

IPC: H02J001/00 ,  H02J003/12

CPC classification number: H02M7/2176 ,  H02M3/156 ,  H02M2001/0022 ,  H02M2003/1555 ,  Y10T307/826

Abstract: An economical digital voltage sag compensator for overcoming sags in distributed electrical power. The voltage sag compensator employs an inexpensive micro-controller, a full wave bridge rectifier, a DC power supply, a voltage divider and an output switch. The micro-controller continuously monitors and evaluates, with respect to a setpoint measured in volt-seconds, the rectified DC voltage. At regularly spaced trigger events, as determined by the micro-controller, the micro-controller concurrently monitors the rectified DC voltage, evaluates the monitored voltage with respect to the setpoint, produces an output signal and sends that output signal to the output switch. The output switch supplies an electrical device, connected electrically in series with the full wave bridge rectifier and the output switch, with a constant average current of sufficient level to maintain the electrical device in a desired operating condition. The constant average current is obtained by applying constant volt-seconds to the electrical device. The circuit also provides overvoltage protection to the electrical device.

Abstract translation: 一种经济的数字电压骤降补偿器，用于克服分布式电力中的下垂。 电压骤降​​补偿器采用廉价的微控制器，全波桥式整流器，直流电源，分压器和输出开关。 微控制器连续监测和评估相对于以伏秒为单位的设定值，整流后的直流电压。 在由微控制器确定的定期间隔的触发事件中，微控制器同时监视整流的直流电压，评估所监测的电压相对于设定值，产生输出信号并将该输出信号发送到输出开关。 输出开关提供电气设备，其与全波桥式整流器和输出开关串联电连接，具有足够电平的恒定平均电流以将电气设备保持在期望的操作状态。 通过对电气设备施加恒定的伏秒来获得恒定的平均电流。 该电路还为电气设备提供过压保护。

公开(公告)号：US6087613A

公开(公告)日：2000-07-11

申请号：US27586

申请日：1998-02-23

Applicant: Paul R. Buda ,  Jonathan H. Bailey ,  Larry A. Dew ,  Robert M. Slazinski

Inventor： Paul R. Buda ,  Jonathan H. Bailey ,  Larry A. Dew ,  Robert M. Slazinski

IPC: B23K11/24 ,  B23K11/25 ,  G05B13/04

CPC classification number: B23K11/257

Abstract: A weld controller maintains an internal dynamic model of load impedance, which tracks normal impedance variations that occur as the weld tooling degrades. The weld controller contains a weld process monitor function that tests an estimated load impedance of a weld schedule presently under execution against an internal dynamic model and generates events when characteristics of the estimated load impedance of the present weld falls outside an operator definable band, indicating a problem with the workpiece presently being welded. The weld controller further includes the capability to accept a static model of the load impedance that is used as the reference impedance for the weld control and tooling. The weld controller also includes means to declare an event when characteristics of the dynamic model differ from the static model by an operator-defined amount. The weld controller allows a distinction to be made between a short-term difference in load impedance, generally indicative of a weld process variation and the long-term difference in load impedance, generally indicative of tooling degradation. This provides for tighter controls of weld process variations than could previously be achieved, coupled with an indication of incipient tooling faults.

Abstract translation: 焊接控制器保持负载阻抗的内部动态模型，其跟踪焊接工具降级时发生的正常阻抗变化。 焊接控制器包括焊接过程监控功能，其针对内部动态模型测试目前正在执行的焊接调度的估计负载阻抗，并且当本焊接的估计负载阻抗的特性落在操作者可定义的频带之外时产生事件，表示 目前正在焊接的工件的问题。 焊接控制器还包括接受用作焊接控制和加工的参考阻抗的负载阻抗的静态模型的能力。 焊接控制器还包括在动态模型的特性与静态模型不同的情况下声明事件的手段，操作员定义的量。 焊接控制器允许区分负载阻抗的短期差异，通常表示焊接过程变化和负载阻抗的长期差异，这通常表示工具退化。 这提供了焊接过程变化的更严格的控制，而不是先前可以实现的，同时也是初始加工缺陷的指示。

公开(公告)号：US6060797A

公开(公告)日：2000-05-09

申请号：US960552

申请日：1997-10-31

Applicant: Matthew R. Harris ,  Gregory R. Lawrence ,  Timothy B. Phillips

Inventor： Matthew R. Harris ,  Gregory R. Lawrence ,  Timothy B. Phillips

IPC: H01H47/22 ,  H01H71/68 ,  H01H3/02 ,  H01H9/02 ,  H01H75/02

CPC classification number: H01H71/68 ,  H01H47/226

Abstract: A solenoid operated remote resetting device with a protective solenoid activation circuit is disclosed. The device includes a housing for enclosing and protecting a solenoid with a movable plunger, a movable mechanical operator having an operator arm extending through an opening defined in the housing and a circuit board on which a solenoid activation circuit is mounted. The solenoid activation circuit includes circuitry for protecting the solenoid from overheating due to intentional or unintentional prolonged current flow in the solenoid.

Abstract translation: 公开了具有保护螺线管激励电路的电磁操作远程复位装置。 该装置包括用于封闭并保护具有可移动柱塞的螺线管的壳体，具有延伸穿过壳体中限定的开口的操作臂的可移动机械操作器和安装螺线管激活电路的电路板。 螺线管激励电路包括用于保护螺线管由于在螺线管中故意或无意延长的电流而过热的电路。