Electronic electricity meters
    1.
    发明授权
    Electronic electricity meters 失效
    电子电表

    公开(公告)号:US5742512A

    公开(公告)日:1998-04-21

    申请号:US565464

    申请日:1995-11-30

    CPC分类号: G01R21/133 G01R22/00

    摘要: An electronic energy meter is described. The meter includes, in one form, voltage and current sensors having their outputs coupled to an analog to digital converter. The digital signals output by the converter are supplied to a digital signal processor (DSP) which outputs digitized metering quantities to a microcomputer. Using the metering quantities supplied by the DSP, the microcomputer performs additional metering calculations and functions. In one aspect, the present invention is directed to a method for determining whether an option board is being used and, if so, controlling meter operations in accordance with the coupled option board. In another aspect, the present invention is directed to a high function option board which, when enabled, operates as a master and the meter microcomputer automatically switches from its normal master mode to slave mode. In yet another aspect, the present invention is directed to converting the functionality of the electronic electricity meter from a first mode of operation to a second mode of operation. In still another aspect, the present invention is directed to a structure for avoiding, or minimizing, the loss of billing data when converting, or upgrading (or downgrading), meter operations.

    摘要翻译: 描述了一种电子式电能表。 该仪表以一种形式包括其输出耦合到模数转换器的电压和电流传感器。 由转换器输出的数字信号被提供给数字信号处理器(DSP),数字信号处理器(DSP)将数字化的计量量输出到微型计算机。 使用由DSP提供的计量数量,微型计算机执行附加的计量计算和功能。 一方面,本发明涉及一种用于确定是否正在使用选件板的方法,如果是,则根据所耦合的选件板来控制仪表操作。 在另一方面,本发明涉及一种高功能选项板,当使能时,其作为主机操作,并且仪表微计算机自动从其正常主模式切换到从模式。 在另一方面,本发明涉及将电子电表的功能从第一操作模式转换到第二操作模式。 另一方面,本发明涉及一种用于在转换或升级(或降级)仪表操作时避免或最小化计费数据丢失的结构。

    Demand meter having load profile recording capabilities
    3.
    发明授权
    Demand meter having load profile recording capabilities 失效
    需求量表具有负荷曲线记录功能

    公开(公告)号:US5924051A

    公开(公告)日:1999-07-13

    申请号:US954419

    申请日:1997-10-20

    IPC分类号: G01R21/133 G01R11/63

    CPC分类号: G01R21/133

    摘要: A demand electronic electricity meter having load profile recording capabilities is presented. Load profile recording requires memory for storing the recorded information, whereby either on-board memory or external memory is required. Load profile parameters include the number of channels (e.g., 1, 2 or more channels), interval size (e.g., 1, 5, 10, 15, 30 or 60 minutes), quantities to be recorded (e.g., kWh and kvarh, kVAh, or Qh) and channel scalar/divisor (e.g., for each channel, a 2 byte divisor and a 2 byte scalar). With two channels, only two quantities are available for recording, kWh and the one other quantity that the meter has been configured to record, (e.g., kvarh, KVAh, or kQh). For each quantity selected, snapshots of the corresponding total accumulator; (i.e. total kWh and total kvarh, kVAh or kQh) are automatically maintained.

    摘要翻译: 提出了一种具有负荷曲线记录功能的需求电子电表。 负载配置文件记录需要用于存储记录信息的存储器,由此需要板载存储器或外部存储器。 负载曲线参数包括通道数(例如,1,2个或更多个通道),间隔大小(例如,1,5,10,15,30或60分钟),要记录的数量(例如,kWh和kvarh,kVAh ,或Qh)和通道标量/除数(例如,对于每个通道,2字节除数和2字节标量)。 使用两个通道,只有两个数量可用于记录,kWh和仪表已配置为记录的其他数量(例如kvarh,KVAh或kQh)。 对于所选择的每个数量,相应的总累加器的快照; (即总kWh和总kvarh,kVAh或kQh)被自动维持。

    Methods and apparatus for updating firmware in an electronic electricity meter
    6.
    发明授权
    Methods and apparatus for updating firmware in an electronic electricity meter 失效
    用于更新电子电表中固件的方法和装置

    公开(公告)号:US07065457B1

    公开(公告)日:2006-06-20

    申请号:US09606554

    申请日:2000-06-29

    IPC分类号: G01R19/00

    CPC分类号: G01R21/133

    摘要: The present invention, in one embodiment, is a method for operating an electronic electric meter having current and voltage sensors configured to generate measurements of current and voltage, respectively; a microcomputer coupled to the current and voltage sensors and having on-chip masked read only memory (ROM); and a nonvolatile, alterable memory coupled to the microcomputer. The method includes steps of: storing vectors pointing to program portions of the ROM in the non-volatile memory; and using the stored vectors to operate the microcomputer to execute the program portions stored in the ROM to control operation of the meter.

    摘要翻译: 本发明在一个实施例中是一种用于操作电子电表的方法,该电子电表具有分别产生电流和电压测量值的电流和电压传感器; 耦合到电流和电压传感器并具有片上掩蔽的只读存储器(ROM)的微型计算机; 以及耦合到微型计算机的非易失性可变存储器。 该方法包括以下步骤:将指向ROM的程序部分的向量存储在非易失性存储器中; 并使用存储的矢量来操作微型计算机以执行存储在ROM中的程序部分,以控制仪表的操作。

    RELAY DEVICE AND CORRESPONDING METHOD
    7.
    发明申请
    RELAY DEVICE AND CORRESPONDING METHOD 有权
    继电器和相关方法

    公开(公告)号:US20080158753A1

    公开(公告)日:2008-07-03

    申请号:US11618192

    申请日:2006-12-29

    IPC分类号: H02H3/00

    CPC分类号: H02H7/30 H02H3/28 H02H3/387

    摘要: A method of operating a relay device, the method comprising the steps of: computing positive-sequence first and second current-phasor for the first and second main circuit-breakers and computing currents from phasors, and the bus-tie-breaker; computing positive-sequence voltage for the bus-tie-breaker; triggering a method when at least one fault current at the bus-tie-breaker exceeds a threshold, without the presence of a fault on one of the feeders; determining whether the fault is internal or external, wherein the fault is internal if the positive-sequence current of the first and second main circuit breakers is in phase; and wherein if the positive-sequence current through the first main circuit breaker is not in-phase with the positive-sequence current through the second main circuit breaker, the fault is external to the bus; determining whether the fault is on a first or second side of the tie circuit; and locating the fault.

    摘要翻译: 一种操作中继装置的方法,所述方法包括以下步骤:计算第一和第二主断路器的正序第一和第二电流相量以及来自相量和总线断路器的计算电流; 计算总线断路器的正序电压; 当总线断路器上的至少一个故障电流超过阈值时,在一个馈线上不存在故障的情况下触发方法; 确定故障是内部还是外部,其中如果第一和第二主断路器的正序电流同相,则故障是内部的; 并且其中,如果通过所述第一主断路器的正序电流与通过所述第二主断路器的正序电流不同相,则所述故障位于所述总线外部。 确定所述故障是否在所述连接电路的第一侧或第二侧上; 并定位故障。

    Methods and apparatus for defining meter data calculations in an electronic electricity meter
    9.
    发明授权
    Methods and apparatus for defining meter data calculations in an electronic electricity meter 有权
    用于在电子电表中定义仪表数据计算的方法和装置

    公开(公告)号:US06564159B1

    公开(公告)日:2003-05-13

    申请号:US09606270

    申请日:2000-06-29

    IPC分类号: G01R2100

    CPC分类号: G01R22/00 G01R21/133

    摘要: The present invention, in one embodiment, is a method for defining meter data calculations in an electronic electric meter. The method includes steps of: storing a set of predefined data calculation instructions in a non-volatile memory of the meter; storing a first set of vectors in a memory of the meter, the vectors pointing to data calculations of the set of predefined data calculation instructions; metering a plurality of electrical quantities of a power source; and controlling calculations performed on the metered electrical quantities in accordance with the data calculation instructions pointed to by the first stored set of vectors.

    摘要翻译: 本发明在一个实施例中是用于在电子电表中定义仪表数据计算的方法。 该方法包括以下步骤:将一组预定义的数据计算指令存储在仪表的非易失性存储器中; 将第一组矢量存储在所述仪表的存储器中,所述矢量指向所述一组预定义数据计算指令的数据计算; 计量多个电量的电源; 以及根据由第一组存储的矢量指向的数据计算指令来控制对计量的电量执行的计算。

    RELAY DEVICE AND CORRESPONDING METHOD
    10.
    发明申请
    RELAY DEVICE AND CORRESPONDING METHOD 有权
    继电器和相关方法

    公开(公告)号:US20080158750A1

    公开(公告)日:2008-07-03

    申请号:US11618175

    申请日:2006-12-29

    IPC分类号: H02H3/00 G01R31/08

    CPC分类号: H02H7/30 H02H3/081

    摘要: A method of operating a relay device, the method comprising the steps of: providing main circuit-breakers and a bus-tie-breaker connecting the main-circuit-breakers; defining a partial-differential-zone comprising a main circuit breaker and the bus-tie breaker; assigning a first value to the direction of the fault current flowing into the partial differential zone; -assigning a second value to the direction of the fault currents flowing out of the partial-differential-zone, wherein the first value is not equal to the second value; -comparing the values assigned to the fault currents; determining if the fault currents are flowing into the partial differential zone; and determining if at least two of the fault-currents is flowing in a different direction with respect to the partial-differential-zone wherein one of the fault currents is flowing into the partial-differential-zone and one of the fault currents is flowing out of the partial differential zone.

    摘要翻译: 一种操作中继装置的方法,所述方法包括以下步骤:提供主断路器和连接所述主断路器的总线断路器; 限定包括主断路器和母线断路器的部分差分区; 向流入所述偏差区的故障电流的方向分配第一值; - 将第二值分配给从所述部分差分区流出的故障电流的方向,其中所述第一值不等于所述第二值; - 比较分配给故障电流的值; 确定故障电流是否流入偏差区; 以及确定至少两个故障电流是否相对于其中一个故障电流流入部分差分区并且其中一个故障电流流出的部分差分区在不同的方向上流动 的偏差区。