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    • 1. 发明授权
    • Electric control apparatus
    • 电控装置
    • US5874873A
    • 1999-02-23
    • US918545
    • 1997-08-22
    • Engelbert HetzmannsederEarl T. PiberPeter K. MoldovanKurt V. EckrothPeter J. Theisen
    • Engelbert HetzmannsederEarl T. PiberPeter K. MoldovanKurt V. EckrothPeter J. Theisen
    • H01H33/14H01H71/12H01H73/18H01H77/10H02P3/18H02P23/00H01H75/00
    • H01H77/10H01H1/2066H01H71/121H01H77/108
    • An electric motor control apparatus includes an electrical current control apparatus which is operable to limit current to an electric motor. When the electric motor is a three-phase motor, three current limiting switch assemblies are provided in the electric current control apparatus. A single stack of laminations concentrates magnetic fields emanating from conductors in all three current limiting switch assemblies. Each of the current limiting switch assemblies includes two movable contacts which are mounted on contact arms. The contact arms are movable in slots in the stack of laminations. A first series of splitter plates is disposed in an array along a path of movement of the contact on the first movable contact arm and a second series of splitter plates is disposed along a path of movement of the contact on the second contact arm for each of the current limiting switch assemblies. A short circuit splitter plate conducts electrical current between the two series of splitter plates. A bypass splitter plate is connected in a bypass circuit which conducts excessive current around a motor starter to protect the motor starter.
    • 电动机控制装置包括电流控制装置,其可操作以将电流限制到电动机。 当电动机是三相电动机时,在电流控制装置中设置三个限流开关组件。 单个叠片堆叠集中了所有三个限流开关组件中的导体发出的磁场。 每个电流限制开关组件包括安装在接触臂上的两个可动触点。 接触臂可在叠片叠层中的槽中移动。 第一系列分离板沿着第一可动接触臂上的接触件的移动路径排列成阵列,并且第二系列分离板沿着接触件在第二接触臂上的移动路径设置, 电流限制开关组件。 短路分离板在两个分离板系列之间传导电流。 旁路分流板连接在旁路回路中,其绕电动机起动器传导过大的电流,以保护电动机起动器。
    • 3. 发明授权
    • Solid state hybrid switch
    • 固态混合开关
    • US4642481A
    • 1987-02-10
    • US763843
    • 1985-08-08
    • Ralph F. BielinskiJames R. JaeschkeSlobodan KrsticEarl T. PiberPeter J. Theisen
    • Ralph F. BielinskiJames R. JaeschkeSlobodan KrsticEarl T. PiberPeter J. Theisen
    • H01H9/54H01H9/56H01H13/02H01H13/56H01H13/64H03K17/72
    • H01H9/542H01H13/023H01H13/562H01H13/64H01H9/56Y10T307/865
    • 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).
    • 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)。
    • 5. 发明授权
    • Bi-directional direct current switching apparatus having bifurcated arc
runners extending into separate arc extinguishing chambers
    • 双向直流电流切换装置,具有扩展到独立灭弧室的双向弧形运行器
    • US5130504A
    • 1992-07-14
    • US574702
    • 1990-08-29
    • Peter K. MoldovanPeter J. TheisenMark A. JudsRobert A. Kihn
    • Peter K. MoldovanPeter J. TheisenMark A. JudsRobert A. Kihn
    • H01H33/18H01H9/34H01H9/44H01H33/59H01H51/12
    • H01H9/443H01H51/12H01H9/34H01H1/2083H01H33/596
    • Direct current switching apparatus having front and rear arc extinguishing chambers substantially coextensive, the rear chamber being separated into two laterally spaced arc extinguishing chambers, each arc extinguishing chamber comprising rows of non-magnetic parallel splitter plates, a pair of spaced conductors each having a stationary contact element spanning both the front and rear arc extinguishing chambers, power supply terminals connected to the respective spaced conductors, magnetic plates disposed in front of the front chamber and in back of the back chamber having magnetic means providing a magnetic path externally around the chambers, permanent magnets magnetically coupled to at least one of the magnetic plates providing a magnetic field across the respective chambers, a movable contact movable normal to a front to rear direction into and out of bridging engagement with the stationary contacts, and an electromagnetic drive motor disposed coextensive with said arc extinguishing chambers coupled at a lower end to the movable contact. Bifurcated arc runners of the conductors lead from the stationary contact elements into respective front and rear chambers, and a conductor surrounds the laterally spaced arc extinguishing chambers to cooperate with the respective arc runners therein. Arcs established between the stationary and movable contact elements are moved from the contacts into either the front or rear chambers by the magneteic field according to polarity of the power applied to the respective terminals. The electromagnetic motor is readily and inexpensively manufacatured and assembled by utilizing molded housing parts to position and retain elements of the motor. The apparatus is particularly well suited for high voltage, high current applications requiring lightweight, compact apparatus.
    • 6. 发明授权
    • Electrical contactor employing a rotary disc
    • 使用旋转盘的电接触器
    • US5319167A
    • 1994-06-07
    • US27971
    • 1993-03-08
    • Mark A. JudsBruce C. BeihoffRichard G. SmithWilliam R. NelsonDaniel A. WycklendtPeter J. TheisenJerome K. HastingsPeter K. Moldovan
    • Mark A. JudsBruce C. BeihoffRichard G. SmithWilliam R. NelsonDaniel A. WycklendtPeter J. TheisenJerome K. HastingsPeter K. Moldovan
    • H01H1/36H01H9/32H01H9/36H01H9/44H01H71/68H01H73/04H01H77/10H01H33/02
    • H01H77/107H01H1/365H01H1/2041H01H71/68H01H9/32H01H9/36H01H9/446
    • An electrical contractor device (80) for controlling the flow of electrical power from a source of electrical power to an electrical device according to a command signal from a controller utilizing a rotary disc assembly (90) rotated by an actuator (169) where the rotary disc assembly (90) is comprised of a rotary disc (100) supporting a disc conductor (102) having a pair of contact pads (106, 108) joined by a pair of conductor legs (109, 113) and a center section (111) where the conductor legs (109, 113) are parallel and offset one from the other straddling an axis of rotation (103) where high flow of electrical current through the disc conductor (102) generates an electro-magnetic torque in the rotary disc assembly (90). The disc contacts (106, 108) make electrical contact with a corresponding number of stationary contacts (110,112) of a "turn back" design one of which is connected one to a source of electrical power and the second to the device whose operation is to be controlled were as the rotary disc (100) is rotated by the actuator means (169), the disc contacts (106, 108) make electrical connection with the stationary contacts (110, 112) and when the actuator (169) is not energized a return spring (176) causes the rotary disc (100) to rotate in an opposite direction thereby causing the stationary contacts (110, 112) to be forced away from the rotary disc (100) by a separation ramp (140, 142). A disc conductor (102) is formed to induce a rotary torque in the rotary disc (100) when an abnormally high electrical current is conducted thereby breaking the conduction path by rotating the rotary disc (100) in conjunction with the return spring (176) to overcome the spring (180) connecting actuator (169) and open the contactor device (80).
    • 一种用于根据来自控制器的命令信号来控制从电源到电气设备的电力的电气承包设备(80),所述控制器利用由致动器(169)旋转的旋转盘组件(90),旋转盘组件 盘组件(90)包括支撑盘导体(102)的旋转盘(100),该盘导体具有通过一对导体腿(109,113)和中心部分(111)连接的一对接触垫(106,108) ),其中导体腿(109,113)平行并偏离另一个跨越旋转轴线(103),其中通过盘导体(102)的高流量电流在旋转盘组件中产生电磁转矩 (90)。 光盘触点(106,108)与相应数量的“回转”设计的固定触点(110,112)电接触,其中一个连接到一个电源,第二个固定触点(110,112)的操作是 当旋转盘(100)由致动器装置(169)旋转时,盘接触件(106,108)与固定触头(110,112)电连接,并且当致动器(169)未通电时 复位弹簧(176)使旋转盘(100)沿相反的方向旋转,从而通过分离斜坡(140,142)使固定触点(110,112)被迫离开旋转盘(100)。 当导体异常高的电流导致旋转盘(100)中的旋转扭矩时,形成盘形导体(102),从而通过与回转弹簧(176)结合旋转旋转盘(100)来破坏传导路径, 以克服弹簧(180)连接致动器(169)并打开接触器装置(80)。
    • 9. 发明授权
    • Photovotaic system including hybrid bi-directional DC contactors and method of detection and isolation of faults therein
    • 包括混合双向直流接触器的光伏系统及其中的故障的检测和隔离方法
    • US08587906B2
    • 2013-11-19
    • US13440275
    • 2012-04-05
    • Vijay BhavarajuTiefu ZhaoPeter J. Theisen
    • Vijay BhavarajuTiefu ZhaoPeter J. Theisen
    • H02H3/00
    • H02J3/383H01L31/02021Y02E10/563Y10T307/696
    • 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.
    • 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。