公开(公告)号：US20080309366A1

公开(公告)日：2008-12-18

申请号：US12132056

申请日：2008-06-03

申请人： Wei Zhou ,  Bin Lu ,  Thomas G. Habetler ,  Ronald G. Harley ,  Peter J. Theisen

发明人： Wei Zhou ,  Bin Lu ,  Thomas G. Habetler ,  Ronald G. Harley ,  Peter J. Theisen

IPC分类号： G01R31/34

CPC分类号： G01M13/04 ,  G01R31/343

摘要： A system and method for detecting incipient mechanical motor faults by way of current noise cancellation is disclosed. The system includes a controller configured to detect indicia of incipient mechanical motor faults. The controller further includes a processor programmed to receive a baseline set of current data from an operating motor and define a noise component in the baseline set of current data. The processor is also programmed to repeatedly receive real-time operating current data from the operating motor and remove the noise component from the operating current data in real-time to isolate any fault components present in the operating current data. The processor is then programmed to generate a fault index for the operating current data based on any isolated fault components.

摘要翻译： 公开了一种通过电流噪声消除来检测初始机械电机故障的系统和方法。 该系统包括被配置为检测初始机械电动机故障的标记的控制器。 控制器还包括处理器，其被编程为从操作马达接收当前数据的基线集合，并且定义当前数据的基线集合中的噪声分量。 处理器也被编程为重复地接收来自操作电机的实时工作电流数据，并实时地从工作电流数据中去除噪声分量，以隔离存在于工作电流数据中的任何故障组件。 然后处理器被编程为基于任何隔离的故障组件为工作电流数据生成故障索引。

公开(公告)号：US07777516B2

公开(公告)日：2010-08-17

申请号：US12132056

申请日：2008-06-03

申请人： Wei Zhou ,  Bin Lu ,  Thomas G. Habetler ,  Ronald G. Harley ,  Peter J. Theisen

发明人： Wei Zhou ,  Bin Lu ,  Thomas G. Habetler ,  Ronald G. Harley ,  Peter J. Theisen

IPC分类号： G01R31/34

CPC分类号： G01M13/04 ,  G01R31/343

摘要： A system and method for detecting incipient mechanical motor faults by way of current noise cancellation is disclosed. The system includes a controller configured to detect indicia of incipient mechanical motor faults. The controller further includes a processor programmed to receive a baseline set of current data from an operating motor and define a noise component in the baseline set of current data. The processor is also programmed to repeatedly receive real-time operating current data from the operating motor and remove the noise component from the operating current data in real-time to isolate any fault components present in the operating current data. The processor is then programmed to generate a fault index for the operating current data based on any isolated fault components.

摘要翻译： 公开了一种通过电流噪声消除来检测初始机械电机故障的系统和方法。 该系统包括被配置为检测初始机械电动机故障的标记的控制器。 控制器还包括处理器，其被编程为从操作马达接收当前数据的基线集合，并且定义当前数据的基线集合中的噪声分量。 处理器也被编程为重复地接收来自操作电机的实时工作电流数据，并实时地从工作电流数据中去除噪声分量，以隔离存在于工作电流数据中的任何故障组件。 然后处理器被编程为基于任何隔离的故障组件为工作电流数据生成故障索引。

公开(公告)号：US07952318B2

公开(公告)日：2011-05-31

申请号：US12132484

申请日：2008-06-03

申请人： Bin Lu ,  Thomas G. Habetler ,  Pinjia Zhang ,  Peter J. Theisen

发明人： Bin Lu ,  Thomas G. Habetler ,  Pinjia Zhang ,  Peter J. Theisen

IPC分类号： H02P23/14 ,  H02K11/00

CPC分类号： H02P23/14 ,  G01R31/343

摘要： A system and method for determining stator winding resistance in an AC motor is disclosed. The system includes a circuit having an input connectable to an AC source and an output connectable to an input terminal of an AC motor. The circuit includes at least one contactor and at least one switch to control current flow and terminal voltages in the AC motor. The system also includes a controller connected to the circuit and configured to modify a switching time of the at least one switch to create a DC component in an output of the system corresponding to an input to the AC motor and determine a stator winding resistance of the AC motor based on the injected DC component of the voltage and current.

摘要翻译： 公开了一种用于确定AC电动机中定子绕组电阻的系统和方法。 该系统包括具有可连接到AC电源的输入端和可连接到AC电动机的输入端子的输出的电路。 该电路包括至少一个接触器和用于控制AC电动机中的电流和端电压的至少一个开关。 该系统还包括连接到电路的控制器，其被配置为修改至少一个开关的切换时间，以在对应于AC电动机的输入的系统的输出中产生DC分量，并确定定子绕组电阻 交流电机基于注入的直流分量的电压和电流。

公开(公告)号：US20090051311A1

公开(公告)日：2009-02-26

申请号：US12132484

申请日：2008-06-03

申请人： Bin Lu ,  Thomas G. Habetler ,  Pinjia Zhang ,  Peter J. Theisen

发明人： Bin Lu ,  Thomas G. Habetler ,  Pinjia Zhang ,  Peter J. Theisen

IPC分类号： H02P23/14 ,  H02K11/00

CPC分类号： H02P23/14 ,  G01R31/343

摘要： A system and method for determining stator winding resistance in an AC motor is disclosed. The system includes a circuit having an input connectable to an AC source and an output connectable to an input terminal of an AC motor. The circuit includes at least one contactor and at least one switch to control current flow and terminal voltages in the AC motor. The system also includes a controller connected to the circuit and configured to modify a switching time of the at least one switch to create a DC component in an output of the system corresponding to an input to the AC motor and determine a stator winding resistance of the AC motor based on the injected DC component of the voltage and current.

摘要翻译： 公开了一种用于确定AC电动机中的定子绕组电阻的系统和方法。 该系统包括具有可连接到AC电源的输入端和可连接到AC电动机的输入端子的输出的电路。 该电路包括至少一个接触器和用于控制AC电动机中的电流和端电压的至少一个开关。 该系统还包括连接到电路的控制器，其被配置为修改至少一个开关的切换时间，以在对应于AC电动机的输入的系统的输出中产生DC分量，并确定定子绕组电阻 交流电机基于注入的直流分量的电压和电流。

公开(公告)号：US08587906B2

公开(公告)日：2013-11-19

申请号：US13440275

申请日：2012-04-05

申请人： Vijay Bhavaraju ,  Tiefu Zhao ,  Peter J. Theisen

发明人： Vijay Bhavaraju ,  Tiefu Zhao ,  Peter J. Theisen

IPC分类号： H02H3/00

CPC分类号： H02J3/383 ,  H01L31/02021 ,  Y02E10/563 ,  Y10T307/696

摘要： A photovoltaic (PV) power system is disclosed that includes hybrid DC contactors corresponding to each of a plurality of PV strings, with each hybrid DC contactor having main contacts, a solid state switching unit positioned in parallel with the main contacts, and sensors configured to measure a voltage and current on respective PV strings. A controller is provided in the PV power system that is configured to receive voltage and current data on the PV strings, detect a fault condition on a respective PV string based on the voltage and current data, cause the main contacts of a respective hybrid DC contactor to remain closed on each PV string for which a fault condition is detected, and cause the main contacts of a respective hybrid DC contactor to open on each PV string for which no fault condition is detected, so as to clear the fault condition.

摘要翻译： 公开了一种光伏（PV）电力系统，其包括对应于多个PV串中的每一个的混合DC接触器，每个混合DC接触器具有主触点，与主触点平行定位的固态开关单元，以及被配置为 测量各个PV串上的电压和电流。 在PV电力系统中设置有一个控制器，其被配置为接收PV串上的电压和电流数据，基于电压和电流数据检测相应PV串上的故障状况，导致相应的混合DC接触器的主触点 在检测到故障条件的每个PV串上保持闭合，并且使得各个混合DC接触器的主触点在没有检测到故障状态的每个PV串上打开，以便清除故障状况。

公开(公告)号：US5258729A

公开(公告)日：1993-11-02

申请号：US927026

申请日：1992-08-06

申请人： Donald A. Link ,  Michael R. Larsen ,  Peter J. Theisen ,  Edward L. Wellner ,  Richard G. Smith

发明人： Donald A. Link ,  Michael R. Larsen ,  Peter J. Theisen ,  Edward L. Wellner ,  Richard G. Smith

IPC分类号： H01H1/58 ,  H01H71/02 ,  H01H9/02

CPC分类号： H01H71/0228 ,  H01H1/5833 ,  H01H2071/7481

摘要： Molded case circuit breaker having collapsible toggle linkage with rectangular cross section knee pin non-rotatably held within open rectangular slots in upper link, bifurcated movable contact fingers loosely guided for pivotal movement about fixed pin to break contact welds, helical compression springs biasing bifurcations against faces of a stationary connector, trapezoidal cross section shaft biasing shaft against a fixed corner of clamping strap and frame, increasing clamping force and increasing tool clearance, operating handle which changes pivot point moving to RESET position, reducing lateral force component of operating springs for reliable return of handle to OFF position, dual stops for movable contact fingers to spread impact forces along fingers, greater contact separation in poles not containing operating mechanism, slot motor laminations providing metal reinforcement to separate arc chamber housing which is cooperatively interlocked with base to distribute structural strength, terminal cover with arc vent extension angled downwardly, extended lug cover with second arc vent extension interlocked to terminal cover and arc chamber housing for no-fastener securement, trip unit armature pivoted in crested surface of molded pocket and connected to trip bar by wire bail for space-efficient location of parts, and accessory devices supported on and secured to trip unit housing have throw-away pin locking operator lever in correct position during installation.

摘要翻译： 具有可折叠肘节连接器的模制断路器，其具有矩形横截面膝盖销，其不可旋转地保持在上连杆中的开放矩形槽中，分叉可动接触指松动地被引导以围绕固定销枢转运动以断开接触焊缝，螺旋压缩弹簧偏置分叉到面 固定连接器，梯形横截面轴偏置轴抵靠夹紧带和框架的固定角，增加夹紧力和增加刀具间隙，操作手柄，使枢轴点移动到复位位置，减少操作弹簧的横向力分量，以获得可靠的回报 的手柄到OFF位置，双止动器可移动接触指以沿手指传播冲击力，在不包含操作机构的杆中具有更大的接触间隔，槽电机叠片提供金属加强件以与基座协作地互锁以分配结构结构 带有弧形通风口的端子盖向下倾斜，延伸的凸缘盖与第二弧形通气延伸部互锁到端子盖和电弧室外壳，用于无紧固件固定，跳闸单元电枢枢转在模制口袋的顶部表面，并通过线连接到跳闸杆 吊环空间高效的部件位置以及支撑在脱扣单元外壳上的附件装置，在安装过程中将操作杆锁定在正确的位置。

公开(公告)号：US4642481A

公开(公告)日：1987-02-10

申请号：US763843

申请日：1985-08-08

申请人： Ralph F. Bielinski ,  James R. Jaeschke ,  Slobodan Krstic ,  Earl T. Piber ,  Peter J. Theisen

发明人： Ralph F. Bielinski ,  James R. Jaeschke ,  Slobodan Krstic ,  Earl T. Piber ,  Peter J. Theisen

IPC分类号： H01H9/54 ,  H01H9/56 ,  H01H13/02 ,  H01H13/56 ,  H01H13/64 ,  H03K17/72

CPC分类号： H01H9/542 ,  H01H13/023 ,  H01H13/562 ,  H01H13/64 ,  H01H9/56 ,  Y10T307/865

摘要： A hybrid switch (2) having a solid state circuit (2a) including a thyristor (SCR) for closing and reopening a supply circuit (S,4,6) to a load (L) and contacts including an isolating contact (S1) for connecting power to and disconnecting power from the solid state circuit (2a), a control contact (S2) for initiating turn-on and turn-off of the thyristor (SCR), and a bypass contact (S3) for shunting the solid state circuit (2a) after the load has been energized. A zero voltage crossover circuit (ZVC) allows turn-on of the thyristor (SCR) only when the A.C. supply voltage is below a preset value to avoid arcing at the contacts on closing. The inherent zero current crossing turn-off characteristic of the thyristor (SCR) avoids arcing at the contacts on opening. A pushbutton switch (8,10) provides a mechanically controlled time delay of a minimum of the time of one-half cycle of the power supply voltage between the closing of the control contact (S2) and the closing of the bypass contact (S3) and also between the opening of the control contact (S2) and the opening of the isolation contact (S1) to allow operation of the thyristor (SCR) at zero voltage or zero current thereby to avoid arcing for long contact life and elimination of EMI (electromagnetic interference).

摘要翻译： 一种具有固态电路（2a）的混合开关（2），该固态电路包括用于闭合并将负载（L）的供给电路（S，4,6）重新打开的晶闸管（SCR）和包括隔离触点（S1）的触点，用于 与固态电路（2a）的电源连接和断开电源，用于启动晶闸管（SCR）的导通和关断的控制触点（S2）以及用于分流固态电路的旁路触点（S3） （2a）在负载通电之后。 只有当交流电源电压低于预设值时，零电压交叉电路（ZVC）才允许晶闸管（SCR）导通，以避免闭合时触点上的电弧。 晶闸管（SCR）的固有零电流交叉关断特性避免了开路时触点的电弧。 按钮开关（8,10）提供在控制触点（S2）的闭合和旁路触点（S3）的闭合之间的电源电压的二分之一周期的最小时间的机械控制的时间延迟， 以及控制触点（S2）的开启和隔离触点（S1）的打开之间，以允许晶闸管（SCR）在零电压或零电流下的操作，从而避免电弧，从而具有长的接触寿命和消除EMI（ 电磁干扰）。

公开(公告)号：US4614851A

公开(公告)日：1986-09-30

申请号：US704111

申请日：1985-02-21

申请人： Peter J. Theisen ,  James J. Rusenko ,  Frank Navratil, Jr.

发明人： Peter J. Theisen ,  James J. Rusenko ,  Frank Navratil, Jr.

IPC分类号： H01H1/20 ,  H01H9/00 ,  H01H9/10 ,  H01H9/56 ,  H01H33/14

CPC分类号： H01H9/0072 ,  H01H1/2016 ,  H01H1/2041 ,  H01H9/10 ,  H01H9/563

摘要： Stationary contacts (12) of a multi-pole disconnect or safety switch are arranged to be engaged by one of a rotatably movable bridging contact (2) before engagement of the other end thereof with a second set of stationary contacts (10). Stationary contacts (12) of adjacent switch poles are positioned on alternate ends for increasing the phase-to-phase failure distance, and one stationary contact (10a) may be arranged to close one or two milliseconds late to produce single phasing for a short time under fault current conditions during which time current limiting fuses (14) begin to open the circuit.

摘要翻译： 多极断开或安全开关的固定触点（12）被布置成在其另一端与第二组静止触点（10）接合之前由可旋转地移动的桥接触头（2）中的一个接合。 相邻开关极的固定触点（12）位于交替端，用于增加相间故障距离，并且一个固定触点（10a）可以被布置为在短时间内关闭一个或两毫秒以产生单相定相 在故障电流条件下，时间限流熔丝（14）开始打开电路。

公开(公告)号：US4420784A

公开(公告)日：1983-12-13

申请号：US327388

申请日：1981-12-04

申请人： C. Gregory Chen ,  Ping S. Lee ,  Peter J. Theisen ,  Slobodan Krstic

发明人： C. Gregory Chen ,  Ping S. Lee ,  Peter J. Theisen ,  Slobodan Krstic

IPC分类号： H01H9/30 ,  H01H9/54 ,  H01H33/14

CPC分类号： H01H9/542 ,  H01H9/30 ,  H01H2009/543

摘要： A hybrid D.C. power controller of the relay/circuit breaker type that uses a hybrid arrangement of hard contacts (4) and power FET's (18, 20) in cooperative functional combination as the arc quenching means for 270 volt D.C. power systems in low atmospheric pressure environments such as at 80,000 feet altitude in aircraft applications. Also, the relay is provided with arc horns (44c, 48b, 48c, 46c), magnetic field amplifiers (60, 62) looped stationary contacts (44, 46), arc splitters (64, 66), and gas ablating insulating members (60b, 62b, 72, 74, 64b, 66) to enable the relay to interrupt the power circuit if necessary without the help of the power FET's. The power FET's are controlled in both opening and closing the power circuit to afford arcless contact operation in normal load make-break situations. Current and voltage sensing (28, 32) and sampling (CS, VS) circuits determine when to turn the power FET's on after contact arcing has provided the required values. The power contacts (4) can be closed and opened by manual switch (TS) control and opened automatically under overload or short circuit conditions by instantaneous trip detector (ITD) control. Isolation contacts (2) in the power circuit are controlled by delay means (MMV4, MMV8) to close last and open first with respect to the power contacts.

摘要翻译： 继电器/断路器类型的混合直流电力控制器，其在协同功能组合中使用硬触点（4）和功率FET（18,20）的混合布置作为用于270伏直流电力系统在低气压下的电弧熄灭装置 航空器应用中的高度为80,000英尺的环境。 此外，继电器设置有弧形喇叭（44c，48b，48c，46c），磁场放大器（60,62）环状固定触点（44,46），电弧分离器（64,66）和气体消融绝缘构件 60b，62b，72,74,64b，66），以使继电器能够在没有功率FET的帮助的情况下中断电源电路。 功率FET在断开和闭合电源电路时都受到控制，以便在正常负载断线情况下提供无弧接触操作。 电流和电压检测（28,32）和采样（CS，VS）电路确定了在接通电弧提供所需值之后何时打开功率FET导通。 电源触点（4）可通过手动开关（TS）控制闭合并打开，并通过瞬时跳闸检测器（ITD）控制在过载或短路条件下自动打开。 电源电路中的隔离触点（2）由延迟装置（MMV4，MMV8）控制，最后关闭电源触点。

公开(公告)号：US06362445B1

公开(公告)日：2002-03-26

申请号：US09476243

申请日：2000-01-03

申请人： Francois J. Marchand ,  George Alfred Hodkin ,  Trevor Brian Marshal ,  Norman Davies ,  Peter J. Theisen

发明人： Francois J. Marchand ,  George Alfred Hodkin ,  Trevor Brian Marshal ,  Norman Davies ,  Peter J. Theisen

IPC分类号： H01H3302

CPC分类号： H02B13/0354 ,  H01H11/0062 ,  H01H33/593 ,  H01H33/6662 ,  H01H2011/0068 ,  H02B13/01 ,  H02B13/0358

摘要： A compact switchgear system employing a number of modular components that plug into their mating interface and are maintained in electrical isolation employing solid insulation in a manner that substantially shields the electrical conducting portions of the assembly from contact with lower voltage portions of the system. The assembly is primarily made up of five modules. A multi-phase load connector having integral current monitoring transformers for each of the respective phases; a voltage monitoring transformer which plugs into the load connector; an in-line actuator and vacuum interrupter module, provided for each phase, which plugs into the load connector; a three position vacuum switch connected between the vacuum interrupter module and the line or ground; and an electronic control module which receives inputs from the current and voltage monitors, circuit relays, vacuum interrupter/in-line actuator module, and temperature sensors, and provides programmed, controlling outputs to the in-line actuators of the respective vacuum interrupter modules.

摘要翻译： 一种紧凑型开关柜系统，其使用多个模块化部件，其插入其配合接口并且以基本上屏蔽组件的导电部分与系统的较低电压部分接触的方式保持采用固体绝缘的电隔离。 该组件主要由五个模块组成。 一种多相负载连接器，具有用于各个相的整流电流监测变压器; 一个插入负载连接器的电压监控变压器; 为每个相提供插入负载连接器的在线致动器和真空灭弧室模块; 连接在真空断路器模块和线路或接地之间的三位置真空开关; 以及电子控制模块，其接收来自电流和电压监视器，电路继电器，真空断续器/在线致动器模块和温度传感器的输入，并且向各个真空断续器模块的直列致动器提供编程的控制输出。