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1.发明申请Method and system of calibrating sensing components in a circuit breaker system 有权在断路器系统中校准传感元件的方法和系统公开(公告)号：US20080215278A1
公开(公告)日：2008-09-04
申请号：US11824652
申请日：2007-07-02
申请人： Susan Jean Walker Colsch , William Davison , David Joseph Dunne , Kevin John Malo , Steve M. Meehleder , Ryan James Moffitt , Richard Allen Studer , Gary Michael Stumme
发明人： Susan Jean Walker Colsch , William Davison , David Joseph Dunne , Kevin John Malo , Steve M. Meehleder , Ryan James Moffitt , Richard Allen Studer , Gary Michael Stumme
CPC分类号： H01H69/01
摘要： A method and system to calibrate a motor circuit protection device is disclosed. An example method calibrates a signal chain of a circuit breaker. The signal chain includes a current transformer, a burden resistor, a stored energy circuit and a controller. The circuit breaker includes a memory coupled to the controller. A calibration instruction routine is written in a first location of the memory. A test current is injected in the circuit breaker signal chain. The test current peak of the test current in the circuit breaker signal chain is measured. Data indicative of the test current peak is stored in a second location of the memory. The test current peak data is read from the second location of the memory. The test current peak data is compared with nominal current data related to the signal chain remotely from the circuit breaker. A calibration factor is determined based on the comparison.
摘要翻译： 公开了一种用于校准电动机电路保护装置的方法和系统。 示例性方法校准断路器的信号链。 信号链包括电流互感器，负载电阻，存储能量电路和控制器。 断路器包括耦合到控制器的存储器。 校准指令例程被写入存储器的第一位置。 在断路器信号链中注入测试电流。 测量断路器信号链中测试电流的测试电流峰值。 指示测试电流峰值的数据被存储在存储器的第二位置。 从存储器的第二位置读取测试电流峰值数据。 将测试电流峰值数据与从断路器远程的信号链相关的标称电流数据进行比较。 基于比较来确定校准因子。
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2.发明申请Method and system for time synchronized trip algorithms for breaker self protection 有权用于断路器自我保护的时间同步跳闸算法的方法和系统公开(公告)号：US20080012667A1
公开(公告)日：2008-01-17
申请号：US11824654
申请日：2007-07-02
申请人： Susan Jean Walker Colsch , William Davison , Kevin John Malo , Steve M. Meehleder , Richard Allen Studer
发明人： Susan Jean Walker Colsch , William Davison , Kevin John Malo , Steve M. Meehleder , Richard Allen Studer
摘要： A time-synchronized trip implementation for a motor circuit protector (MCP) having a reconfigurable microcontroller. The microcontroller causes a power supply to, be charged for an initial time period during a charging mode. An onboard comparator is configured for a predetermined self-protection level of the MCP, and fault currents that exceed the comparator's threshold will directly drive a solenoid to trip the MCP. The microcontroller reconfigures the comparator's threshold to both measure and charge the power supply toward a stored energy trip voltage, which will charge quickly when high fault currents are present. As a result, self-protection is not compromised. After the trip voltage is reached, the microcontroller reconfigures the onboard comparator's threshold for self-protection trip levels. When a trip event occurs in this mode, stored energy trip activation occurs. The MCP includes user-selectable trip settings, and the microcontroller reconfigures the comparator threshold levels for user-selectable self-protection levels.
摘要翻译： 具有可重构微控制器的电机电路保护器（MCP）的时间同步跳闸实现。 微控制器在充电模式期间使电源在初始时间段被充电。 组合了板载比较器用于MCP的预定自保护级别，超过比较器阈值的故障电流将直接驱动螺线管跳闸MCP。 微控制器重新配置比较器的阈值，以对存储的能量跳闸电压进行测量和充电，这将在存在高故障电流时快速充电。 因此，自我保护不会受到影响。 达到跳闸电压后，微控制器重新配置板载比较器的自保护跳闸电平的阈值。 当在该模式下发生跳闸事件时，发生存储的能量跳闸激活。 MCP包括用户可选择的跳闸设置，微控制器重新配置用于用户选择的自保护级别的比较器阈值电平。
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公开(公告)号：US20080013235A1
公开(公告)日：2008-01-17
申请号：US11824681
申请日：2007-07-02
申请人： William Davison , David Joseph Dunne , Kevin John Malo , Steve M. Meehleder , Richard Allen Studer
发明人： William Davison , David Joseph Dunne , Kevin John Malo , Steve M. Meehleder , Richard Allen Studer
CPC分类号： H02H7/0822 , H01H77/06 , H02H7/0816
摘要： A motor circuit protector that trips in accordance with an instantaneous trip curve that is split into three protection regions, a self-protection region, an in-rush avoidance region, and a locked-rotor avoidance region. Software modules for detecting whether primary current exceeds each region are run in parallel or simultaneously, providing redundant instantaneous trip detection, and these redundant protection regions remain active throughout the startup and steady-state modes of operation of the motor circuit protector. This redundancy provides improved time current trip performance for a wide variety of short circuit conditions and improved system safety properties are realized. The current threshold for the self-protection region can be adjusted toward the in-rush avoidance region once steady-state operation is achieved. In startup mode, only the self-protection region may be detected, but can remain active during steady-state mode.
摘要翻译： 根据瞬时跳闸曲线跳闸的电动机电路保护器，其分为三个保护区域，自保护区域，避免浪涌区域和锁定转子回避区域。 用于检测初级电流是否超过每个区域的软件模块并行或同时运行，提供冗余瞬时跳闸检测，并且这些冗余保护区域在电机电路保护器的整个启动和稳态运行模式下保持有效。 这种冗余为各种短路条件提供了改进的时间电流跳闸性能，并且实现了改进的系统安全性能。 一旦达到稳态运行，就可以将自保护区域的电流阈值调整到避免浪涌区域。 在启动模式下，只能检测到自保护区域，但在稳态模式下可以保持有效。
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公开(公告)号：US20080012677A1
公开(公告)日：2008-01-17
申请号：US11818679
申请日：2007-06-15
IPC分类号： H01F27/24
CPC分类号： H01F38/30 , H01F3/02 , H01F3/14 , H01F27/02 , H01F27/306
摘要： In a circuit breaker, a current transformer for fault powering trip unit electronics and sensing low currents and high currents includes a core with solid laminations and gapped laminations to sense a wide range of currents from locked-rotor currents to high, instantaneous short-circuit currents in a single current transformer. The current transformer can also fault power trip unit electronics without requiring an additional current transformer. The operating range of the circuit breaker is significantly enhanced compared to existing breakers that can sense only a limited range of current levels.
摘要翻译： 在断路器中，用于故障供电跳闸单元电子装置和感测低电流和高电流的电流互感器包括具有固体叠片和间隙叠层的芯，以感测从锁定转子电流到高瞬时短路电流的宽范围电流 在单电流互感器中。 电流互感器还可以对电源跳闸单元电路进行故障，而无需额外的电流互感器。 断路器的工作范围比现有的断路器显着增强，这些断路器只能感应有限的电流水平。
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5.发明申请Method and system of current transformer output magnitude compensation in a circuit breaker system 有权断路器系统中电流互感器输出幅度补偿的方法和系统公开(公告)号：US20080012666A1
公开(公告)日：2008-01-17
申请号：US11824651
申请日：2007-07-02
摘要： A method and system to detect currents in the saturation region of a current transformer for a circuit breaker is disclosed. An example method is sensing a fault condition with a current transformer in a circuit breaker. The characteristic curve of the current transformer in a saturation mode is determined based on peak current. A current is received on the transformer. A secondary current is output from the transformer. It is determined whether the secondary current is indicative of a fault current in the saturation mode of the transformer. The breaker is tripped if the secondary current is indicative of a fault current.
摘要翻译： 公开了一种用于检测用于断路器的电流互感器的饱和区域中的电流的方法和系统。 一种示例性方法是使用断路器中的电流互感器来检测故障状况。 基于峰值电流确定饱和模式下的电流互感器的特性曲线。 在变压器上接收电流。 从变压器输出次级电流。 确定二次电流是否表示变压器的饱和模式下的故障电流。 如果二次电流表示故障电流，则断路器跳闸。
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