公开(公告)号：US20050110480A1

公开(公告)日：2005-05-26

申请号：US10881740

申请日：2004-06-30

申请人： Brent Martin ,  Michael Moore ,  Daniel Lakich

发明人： Brent Martin ,  Michael Moore ,  Daniel Lakich

IPC分类号： G01R20060101 ,  G01R11/32 ,  G01R15/18 ,  G01R19/25

CPC分类号： G01R15/183 ,  G01R19/2513

摘要： A voltage acquisition circuit for sensing input voltage signals in each phase of an electrical service includes a non-active current transformer configuration that is operable over a wide input voltage range. The current transformer configuration includes primary and secondary windings, an input resistor and a burden resistor across which an output voltage is defined. The input resistor may be relatively large, such as on the order of about one MΩ and the transformer core may have a nanocrystalline core characterized by predictable magnetic properties versus varied transformer flux levels. This operational predictability facilitates phase compensation via digital filtering or otherwise for any phase shift induced between input and output voltages of the current transformer. The subject voltage acquisition circuits may be provided to sense each phase of a single-phase or polyphase electrical service, whereby the sensed voltages are subsequently provided to additional components of an electricity meter, such as a power supply or other processing components, including an A/D converter and microprocessor for determining energy quantities.

摘要翻译： 用于感测电气服务的每个阶段中的输入电压信号的电压获取电路包括可在宽的输入电压范围内操作的非有功电流互感器配置。 电流互感器配置包括初级和次级绕组，输入电阻器和负载电阻器，在其上定义输出电压。 输入电阻器可能相对较大，例如大约一个MOmega的数量级，并且变压器芯可以具有以可变的磁特性对变化的变压器通量水平为特征的纳米晶核。 该操作可预测性通过数字滤波或其他方式促进了对电流互感器的输入和输出电压之间感应的任何相移的相位补偿。 可以提供对象电压获取电路以感测单相或多相电气服务的每个相，由此感测的电压随后被提供给电表的附加部件，诸如电源或其它处理部件，包括A / D转换器和微处理器，用于确定能量。

公开(公告)号：US20080094248A1

公开(公告)日：2008-04-24

申请号：US11975142

申请日：2007-10-17

申请人： Daniel Lakich

发明人： Daniel Lakich

IPC分类号： G08C19/16

CPC分类号： G01D4/004 ,  Y02B90/242 ,  Y02B90/244 ,  Y04S20/322 ,  Y04S20/327

摘要： Disclosed are apparatus and methodology subject matters for providing improved functionality of a meter in a 2-way communications arrangement, such as an Advanced Metering System (AMS) or Infrastructure (AMI). More particularly, the present technology relates to methodologies and apparatus for providing load sensing for utility meters which preferably are operable with remote disconnect features in an Advanced Metering Infrastructure (AMI) open operational framework. Meters per the present subject matter utilize a detection circuit, and separately utilize certain remote disconnect functionality. In particular, disconnect functionality is coupled with consideration of electric load information, such as load current as determined by the metering functionality. Providing such functionality allows for the following, all in accordance with the present subject matter: (a) frequent on/off cycling of the electrical service, (b) disconnection of service while full rated current is being delivered through the switch contacts, (c) preservation of switch contact integrity by selective switch operation based on current load, and (d) providing immediate override functionality if needed.

摘要翻译： 公开了用于在诸如高级计量系统（AMS）或基础设施（AMI）的双向通信布置中提供仪表的改进功能的装置和方法学主题。 更具体地，本技术涉及用于为公用事业电表提供负载感测的方法和装置，其优选地可与高级计量基础设施（AMI）开放操作框架中的远程断开特征一起操作。 根据本主题的仪表使用检测电路，并且分别利用某些远程断开功能。 特别地，断开功能与电负载信息的考虑相结合，例如由计量功能确定的负载电流。 提供这样的功能允许以下内容，全部根据本主题：（a）电气服务的频繁的开/关循环，（b）在通过开关触点传送全额定电流时断开服务，（c ）通过基于当前负载的选择性开关操作来保持开关触点完整性，以及（d）如果需要，立即提供超控功能。