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公开(公告)号：US5903145A
公开(公告)日：1999-05-11
申请号：US478605
申请日：1995-06-07
IPC分类号： G01R21/133 , H02M3/335 , G01R7/00 , G01R11/32
CPC分类号： G01R21/133 , G01R21/1331 , H02M3/335 , H02M3/33507
摘要： A universal electronic energy meter for measuring electrical energy usage of a circuit having a 4-wire service is disclosed. The universal meter is operable with both 4-wire wye and 4-wire delta services without modification to the meter's hardware or software. The universal meter is further operable over a wide range of standard service voltages that are supplied in connection with 4-wire services. The universal meter includes a voltage divider network that senses the line voltages from the circuit and scales the line voltages to a voltage suitable for processing by the meter. The scaled voltage has a maximum peak-to-peak voltage irrespective of the particular standard service supplying the electrical energy to the circuit, and therefore, the voltage divider network is not reconfigured to accommodate a wide range of service voltages. The voltage divider network includes resistive dividers that scale the line voltage to provide a linear voltage with minimal phase shift. The universal meter also includes a power supply that is also operable over a wide range of service voltages. The power supply supplies a regulated fixed supply voltage used by the meter for processing functions carried out by the meter independent of the type of 4-wire service supplying the electrical energy to the circuit.
摘要翻译： 公开了一种用于测量具有4线服务的电路的电能使用的通用电子能量计。 通用仪表可以同时使用4线绕线和四线三角形服务，无需修改仪表的硬件或软件。 万用表可以在与4线服务相关的多种标准服务电压范围内进行操作。 通用仪表包括一个分压网络，用于检测来自电路的线路电压，并将线路电压缩放到适合于仪表处理的电压。 缩放电压具有最大的峰 - 峰电压，而不管向电路提供电能的特定标准服务，因此分压器网络不被重新配置以适应宽范围的服务电压。 分压器网络包括电阻分压器，其缩放线路电压以提供具有最小相移的线性电压。 万用表还包括一个电源，也可以在宽范围的工作电压下工作。 电源提供由仪表使用的稳压电源电压，用于处理由仪表执行的功能，而不依赖于向电路提供电能的4线制服务。
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公开(公告)号：US5457621A
公开(公告)日：1995-10-10
申请号：US384398
申请日：1995-02-03
IPC分类号： G01R21/133 , H02M3/335 , H02H7/122
CPC分类号： G01R21/133 , G01R21/1331 , H02M3/335 , H02M3/33507
摘要： Methods and apparatus for supplying power for use in metering electrical energy over a wide range of voltages with a single meter are disclosed. The wide ranging meter includes a processing unit for processing divided input voltage and a current component in order to determine electrical energy metering values. The processing unit is operable in response to supply voltages. A power supply, connected to receive the undivided voltage component, generates the supply voltages over the wide dynamic range. It is especially preferred for the power supply to include a transformer having first, second and third windings, wherein the undivided voltage component is provided to the first winding and wherein the second winding defines the output of the power supply. A switching member is connected to the first winding for permitting and preventing the flow of current in response to a control signal. A control member generates the control signal in response to the output of the power supply. It is also preferred for the control signal to disable the switch member. It is further preferred for the power supply to include a voltage blocking clamp, connected to the transformer for blocking the voltage applied to the transformer. It is still further preferred for an oscillator to be used to generate an oscillating signal for switching the switching member ON and OFF so that the switching member is provided a substantially constant OFF time.
摘要翻译： 公开了用于在宽范围的电压下用单个计量器计量电能来供电的方法和装置。 宽范围表包括用于处理分压输入电压和电流分量的处理单元，以便确定电能计量值。 处理单元可响应于电源电压而操作。 连接以接收未分压电压分量的电源在宽动态范围内产生电源电压。 特别优选的是，电源包括具有第一，第二和第三绕组的变压器，其中未分开的电压分量被提供给第一绕组，并且其中第二绕组限定电源的输出。 开关构件连接到第一绕组，用于响应于控制信号而允许和防止电流流动。 控制构件响应于电源的输出而产生控制信号。 控制信号也优选禁止开关构件。 进一步优选的是，电源包括连接到变压器以阻断施加到变压器的电压的电压阻断钳位。 进一步优选地，振荡器用于产生用于切换开关部件的开关的振荡信号，使得切换部件被设置为基本上恒定的OFF时间。
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公开(公告)号：US07339805B2
公开(公告)日：2008-03-04
申请号：US11649111
申请日：2007-01-03
IPC分类号： H02H7/122
CPC分类号： G01R21/133 , G01R21/1331 , H02M3/335 , H02M3/33507
摘要： A power supply comprises a rectifier, a transformer, a switching member, a controller and a voltage blocking clamp. A power supply can receive an alternating current (AC) input voltage having any magnitude within a wide range of AC input voltage magnitudes and can produce from any such AC input voltage magnitude a direct current (DC) output voltage. The voltage blocking clamp comprises at least one transistor connected between the rectifier and the transformer and switching member that limits the amount of rectified AC input voltage applied to the transformer and switching member to a predetermined amount when the rectified input voltage exceeds that predetermined amount. When the rectified input voltage exceeds the predetermined amount, the amount of the rectified input voltage above the predetermined amount is applied to the at least one transistor instead of the transformer and switching member.
摘要翻译： 电源包括整流器，变压器，开关构件，控制器和电压阻断钳。 电源可以接收在AC输入电压幅度的宽范围内具有任何量级的交流（AC）输入电压，并且可以从直流（DC）输出电压的任何这样的AC输入电压幅度产生。 电压阻断钳位电路包括连接在整流器和变压器之间的至少一个晶体管，以及当整流的输入电压超过该预定量时，将施加到变压器和开关构件的整流后的交流输入电压量限制到预定量的开关构件。 当整流输入电压超过预定量时，高于预定量的整流输入电压的量被施加到至少一个晶体管而不是变压器和开关元件。
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4.发明授权Apparatus for metering at least one type of electrical power over a predetermined range of service voltages 失效用于在预定的服务电压范围内测量至少一种类型的电力的装置公开(公告)号：US06940268B2
公开(公告)日：2005-09-06
申请号：US10618129
申请日：2003-07-11
IPC分类号： G01R21/133 , H02M3/335 , G01R11/32
CPC分类号： G01R21/133 , G01R21/1331 , H02M3/335 , H02M3/33507
摘要： Methods and apparatus for supplying power for use in metering electrical energy over a wide range of voltages with a single meter are disclosed. The wide ranging meter includes a processing unit for processing divided input voltage and a current component in order to determine electrical energy metering values. The processing unit is operable in response to supply voltages. A power supply, connected to receive the undivided voltage component, generates the supply voltages over the wide dynamic range. It is especially preferred for the power supply to include a transformer having first, second and third windings, wherein the undivided voltage component is provided to the first winding and wherein the second winding defines the output of the power supply. A switching member is connected to the first winding for permitting and preventing the flow of current in response to a control signal. A control member generates the control signal in response to the output of the power supply. It is also preferred for the control signal to disable the witch member. It is further preferred for the power supply to include a voltage blocking clamp, connected to the transformer for blocking the voltage applied to the transformer. It is still further preferred for an oscillator to be used to generate an oscillating signal for switching the switching member ON and OFF so that the switching member is provided a substantially constant OFF time.
摘要翻译： 公开了用于在宽范围的电压下用单个计量器计量电能来供电的方法和装置。 宽范围表包括用于处理分压输入电压和电流分量的处理单元，以便确定电能计量值。 处理单元可响应于电源电压而操作。 连接以接收未分压电压分量的电源在宽动态范围内产生电源电压。 特别优选的是，电源包括具有第一，第二和第三绕组的变压器，其中未分开的电压分量被提供给第一绕组，并且其中第二绕组限定电源的输出。 开关构件连接到第一绕组，用于响应于控制信号而允许和防止电流流动。 控制构件响应于电源的输出而产生控制信号。 控制信号也优选地禁用女巫装置。 进一步优选的是，电源包括连接到变压器以阻断施加到变压器的电压的电压阻断钳位。 进一步优选地，振荡器用于产生用于切换开关部件的开关的振荡信号，使得切换部件被设置为基本上恒定的OFF时间。
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5.发明授权Apparatus for metering at least one type of electrical power over a predetermined range of service voltages 失效用于在预定的服务电压范围内测量至少一种类型的电力的装置公开(公告)号：US06229295B1
公开(公告)日：2001-05-08
申请号：US09047479
申请日：1998-03-25
IPC分类号： G01R700
CPC分类号： G01R21/133 , G01R21/1331 , H02M3/335 , H02M3/33507
摘要： An apparatus for metering electrical energy over a predetermined range of voltages within a single meter. The meter includes a divider network for dividing the voltage to generate a divided voltage. The divided voltage is substantially linear with minimal phase shift over the wide dynamic range. A processing unit processes the divided voltage and a current component to determine metered electrical power. A power supply receives the voltage component and generates a supply voltage from the voltage component over the predetermined range to power the processing unit. The power supply may include a transformer having first, second and third windings, so that the voltage component is provided to the first winding and the second winding defines the output of the power supply. A switching member is connected to the first winding for permitting and preventing the flow of current through the first winding. The switch member is operable in response to a control signal, which disables the switch member, that is generated by a controller in response to the output of the power supply.
摘要翻译： 一种用于在单个仪表内的预定电压范围上计量电能的装置。 该仪表包括用于分压电压以产生分压的分压网络。 在宽动态范围内，分压是基本线性的，具有极小的相移。 处理单元处理分压和电流分量以确定计量的电功率。 电源接收电压分量，并从预定范围内的电压分量产生电源电压，为处理单元供电。 电源可以包括具有第一，第二和第三绕组的变压器，使得电压分量被提供给第一绕组，而第二绕组限定电源的输出。 开关构件连接到第一绕组，用于允许和防止通过第一绕组的电流流动。 开关构件可响应于控制器响应于电源的输出而产生的控制信号而被操作，该控制信号禁用开关构件。
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公开(公告)号：US6097182A
公开(公告)日：2000-08-01
申请号：US482005
申请日：1995-06-07
IPC分类号： G01R21/133 , H02M3/335 , G01R21/06
CPC分类号： G01R21/133 , G01R21/1331 , H02M3/335 , H02M3/33507
摘要： An electronic energy meter for use with a 3-wire delta service having a resistive voltage divider for sensing and scaling the line voltages is disclosed. The resistive voltage divider includes three resistive dividers, one being associated with each phase of the electrical energy being metered. Each resistive divider includes a current limiter for reducing the current into the meter to a safe level when the meter electronics are operating at an elevated level, and a resistor for scaling the line voltage to a predetermined maximum peak-to-peak value. The scaled voltage that is generated has minimal phase shift, and therefore, does not require phase shift compensation prior to processing by a processing system of the electronic meter.
摘要翻译： 公开了一种用于具有用于感测和缩放线路电压的电阻分压器的具有3线三角形服务的电子能量计。 电阻分压器包括三个电阻分压器，一个与要计量的电能的每个相位相关联。 每个电阻分压器包括电流限制器，用于当仪表电子设备在升高的电平下工作时，将流入仪表的电流降至安全水平，以及用于将线路电压缩放到预定的最大峰 - 峰值的电阻器。 产生的缩放电压具有最小的相移，因此在电子计量器的处理系统处理之前不需要相移补偿。
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7.发明授权Switching power supply for use in an electronic energy meter having a wide range of input voltages 失效用于具有宽范围输入电压的电子式电表的开关电源
公开(公告)号：US5621629A
公开(公告)日：1997-04-15
申请号：US479137
申请日：1995-06-07
IPC分类号： G01R21/133 , H02M3/335 , H02H7/122
CPC分类号： G01R21/133 , G01R21/1331 , H02M3/335 , H02M3/33507
摘要： Methods and apparatus for supplying power for use in metering electrical energy over a wide range of voltages with a single meter are disclosed. The wide ranging meter includes a processing unit for processing divided input voltage and a current component in order to determine electrical energy metering values. The processing unit is operable in response to supply voltages. A power supply, receives an undivided voltage component and generates supply voltages over the wide dynamic range. It is especially preferred for the power supply to include a transformer having first, second and third windings, wherein the undivided voltage component is provided to the first winding and wherein the second winding defines the output of the power supply. A switching member is connected to the first winding for permitting and preventing the flow of current in response to a control signal. A control member generates the control signal in response to the output of the power supply. It is also preferred for the control signal to disable the switch member. It is further preferred for the power supply to include a voltage blocking clamp, connected to the transformer for blocking the voltage applied to the transformer. It is still further preferred for an oscillator to be used to generate an oscillating signal for switching the switching member ON and OFF so that the switching member is provided a substantially constant OFF time.
摘要翻译： 公开了用于在宽范围的电压下用单个计量器计量电能来供电的方法和装置。 宽范围表包括用于处理分压输入电压和电流分量的处理单元，以便确定电能计量值。 处理单元可响应于电源电压而操作。 一个电源，接收一个不分割的电压分量，并在宽的动态范围内产生电源电压。 特别优选的是，电源包括具有第一，第二和第三绕组的变压器，其中未分开的电压分量被提供给第一绕组，并且其中第二绕组限定电源的输出。 开关构件连接到第一绕组，用于响应于控制信号而允许和防止电流流动。 控制构件响应于电源的输出而产生控制信号。 控制信号也优选禁止开关构件。 进一步优选的是，电源包括连接到变压器以阻断施加到变压器的电压的电压阻断钳位。 进一步优选地，振荡器用于产生用于切换开关部件的开关的振荡信号，使得切换部件被设置为基本上恒定的OFF时间。
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公开(公告)号：US06954061B2
公开(公告)日：2005-10-11
申请号：US10616620
申请日：2003-07-10
IPC分类号： G01D4/00 , G01R7/00 , G01R11/32 , G01R13/02 , G01R21/133 , G01R22/00 , G01R22/10 , G01R31/28 , G01R35/04 , G01R21/06
CPC分类号： G01D4/00 , G01R21/133 , G01R22/00 , G01R22/10 , G01R35/04 , Y02B90/248 , Y04S20/52
摘要： An electronic energy meter senses input voltage and current signals and processes the input voltage and current signals to generate measurements of multiple types of power. The meter comprises a processing system for selecting one of the multiple types of power and defining the same as the selected type of power. The processing system also generates a pulsed test signal representative of a magnitude of a measurement of the selected type of power for testing the operation of the meter. The meter further comprises a communications interface coupled to the processing system for transmitting the pulsed test signal from the meter and for receiving signals from sources external to the meter. Selection of one of the multiple types of power can be achieved by the meter receiving, via the communications interface and from a source external to the meter, a communications command identifying a selected one of the various types of power. The communications interface may comprise an optical communications port.
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9.发明授权公开(公告)号：US06762598B1
公开(公告)日：2004-07-13
申请号：US08478606
申请日：1995-06-07
IPC分类号： G01R2106
CPC分类号： G01D4/00 , G01R21/133 , G01R22/00 , G01R22/10 , G01R35/04 , Y02B90/248 , Y04S20/52
摘要： Methods and apparatus for electronically displaying metered electrical energy are disclosed. A first processor receives voltage and current signals, determines electrical energy and generates an energy signal representative of the electrical energy determination. A second processor receives the energy signal and generates a display signal representative of electrical energy information. A display receives the display signal and displays the electrical energy information. In a first embodiment, it is preferred for the first processor to determine units of electrical energy and the rate at which the units are determined. The second processor generates a display signal representative of the units and the rate. The second processor may also generate a disk signal representative of an equivalent rate of disk rotation in relation to the rate at which the units are determined and energy flow direction information for display. A converter may also be provided for converting an electrical output signal to light. The second processor, connected to the converter, generates the electrical output signal in response to the energy signals, wherein the output signal includes a multiplexed arrangement of the energy signals.
摘要翻译： 公开了用于电子显示计量电能的方法和装置。 第一处理器接收电压和电流信号，确定电能并产生代表电能确定的能量信号。 第二处理器接收能量信号并产生表示电能信息的显示信号。 显示器接收显示信号并显示电能信息。 在第一实施例中，优选地，第一处理器确定电能的单位和确定单元的速率。 第二处理器产生代表单位和速率的显示信号。 第二处理器还可以生成表示相对于确定单元的速率的盘旋转的等效速率的盘信号和用于显示的能量流方向信息。 还可以提供A转换器以将电输出信号转换成光。 连接到转换器的第二处理器响应于能量信号产生电输出信号，其中输出信号包括能量信号的复用布置。
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10.发明授权
公开(公告)号：US6094622A
公开(公告)日：2000-07-25
申请号：US201292
申请日：1998-11-30
IPC分类号： G01R19/25 , G01R21/133 , G01R22/00 , G06F19/00 , G01R21/06
CPC分类号： G01R22/00 , G01R19/2513 , G01R21/133
摘要： A system for determining the service type to which an energy meter having meter elements is connected. The system includes a memory for storing reference information relating to different service types. The system determines which meter elements of the energy meter are active, and then determines relative phase angles and phase voltages of the meter elements. The relative phase angles are determined in to be in an ABC or a CBA rotation. Power quality monitoring is used in determining the phase voltages. The relative phase angles and phase voltages are compared to the reference information to determine the service type. The reference information includes services and scaling information, a nominal service voltage, a programmable potential indicator threshold, and a maximum and a minimum tolerance with respect to the nominal service voltage.
摘要翻译： 一种用于确定具有仪表元件的能量计连接到的服务类型的系统。 该系统包括用于存储与不同服务类型有关的参考信息的存储器。 系统确定能量计的哪些仪表元件是有效的，然后确定仪表元件的相对相位角和相电压。 相对相位角确定为ABC或CBA旋转。 电源质量监测用于确定相电压。 将相对相位角和相电压与参考信息进行比较，以确定服务类型。 参考信息包括服务和缩放信息，标称服务电压，可编程电位指示器阈值以及相对于标称服务电压的最大和最小公差。
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