公开(公告)号：US07089145B2

公开(公告)日：2006-08-08

申请号：US10450578

申请日：2001-12-14

申请人： Bengt-Olof Stenestam ,  Gunnar Andersson

发明人： Bengt-Olof Stenestam ,  Gunnar Andersson

IPC分类号： G01K1/00

CPC分类号： G01R31/027 ,  G01R31/3274 ,  G01R31/333 ,  H01F29/04 ,  H01H2009/0061

摘要： A method and apparatus for condition diagnosing of a tap changer immersed in a cooling fluid, controlling and regulating an inductive power device, such as a transformer or reactor. The diagnosing method compares and evaluates expected heat exchanges between the tap changer and ambient air and the inductive power device, an expected amount of heat generated by the tap changer during operation, together with an actual temperature of the fluid. From the actual temperature, expected heat exchanges and expected generated heat, the heat balance in the system may be obtained and is used for disgnosing the operation conditions of the tap changer. The results from the condition diagnosing may be used as indicators that can alarm operators or may be sent as a data signal to remote and/or portable display means, such as a computer.

摘要翻译： 用于状态诊断浸入冷却流体中的抽头变换器的方法和装置，控制和调节诸如变压器或反应器的感应功率器件。 诊断方法比较和评估分接开关与环境空气和感应功率器件之间期望的热交换，在分接开关在运行期间产生的预期热量以及流体的实际温度。 从实际的温度，预期的热交换和期望的产生的热量，可以获得系统中的热平衡，并用于断开分接开关的操作条件。 来自状态诊断的结果可以用作可以将报警操作者或作为数据信号发送到诸如计算机的远程和/或便携式显示装置的指示器。

公开(公告)号：US06529858B1

公开(公告)日：2003-03-04

申请号：US09914189

申请日：2001-08-23

申请人： Dieter Dohnal ,  Karsten Viereck ,  Mario Schmeckebier

发明人： Dieter Dohnal ,  Karsten Viereck ,  Mario Schmeckebier

IPC分类号： G05F4147

CPC分类号： H01H9/0005 ,  H01H9/0027 ,  H01H2009/0061 ,  H02P13/06

摘要： A method of controlling a step switch. From the measured values of current, voltage and phase angle at an electric drive motor during actuation of the step switch the individual picked-up active output is calculated. From the active output the corresponding torque at the drive motor is calculated. The torque in the step switch which is crucial for controlling is determined on the basis of the torque by using a specifically calculated transfer function. The transfer function is newly determined every time the switch is actuated, with the values of the preceding switch operation or the preceding switch operations being taken as a basis of the new calculation.

摘要翻译： 一种控制步进开关的方法。 根据步进开关动作期间电动驱动电机的电流，电压和相位角的测量值，计算各个拾取有功输出。 从有效输出计算驱动电机的相应扭矩。 通过使用专门计算的传递函数，基于转矩来确定对于控制至关重要的步进开关中的转矩。 每次启动开关时，新确定传递功能，将前面的开关操作或先前开关操作的值作为新计算的依据。

公开(公告)号：US06215408B1

公开(公告)日：2001-04-10

申请号：US09302287

申请日：1999-04-30

申请人： François Léonard ,  Marc Foata ,  Claude Rajotte

发明人： François Léonard ,  Marc Foata ,  Claude Rajotte

IPC分类号： G08B2100

CPC分类号： G01R31/3274 ,  G01R31/3275 ,  H01H2009/0061

摘要： In the present method and apparatus for processing a vibro-acoustic signal emitted by a high-voltage switching system, the vibro-acoustic signal is converted into a digital signal. The digital signal is rectified and the resulting rectified signal is applied to a convolutional filter with a spectral window to produce a smoothed signal. The smoothed signal is decimated to produce a decimated signal representing an envelope of the vibro-acoustic signal. A time realignment of the decimated signal is carried out with respect to a reference signature to produce a realigned signal. Time deviation values generate an alarm if they exceed a limit threshold. The realigned signal is added as a factor of means providing a reference signature and an actualized signature. Variances of the realigned signal are calculated with respect to the reference and actualized signatures. The realigned signal is compared with the actualized and reference signatures to detect a gradual behavior change or a sudden defect, taking the variances into consideration.

摘要翻译： 在用于处理由高压开关系统发射的振动声信号的本方法和装置中，振动声信号被转换为数字信号。 整流数字信号，并将得到的整流信号施加到具有频谱窗口的卷积滤波器，以产生平滑的信号。 平滑信号被抽取以产生表示振动声信号的包络的抽取信号。 针对参考签名执行抽取信号的时间重新排列以产生重新排列的信号。 如果时间偏差值超过极限阈值，则会产生报警。 将重新排列的信号作为提供参考签名和实际签名的手段的因素被添加。 相对于参考和实际签名计算重新排列的信号的差异。 将重新排列的信号与实际和参考签名进行比较，以检测逐渐行为变化或突发缺陷，考虑到差异。

公开(公告)号：US6023036A

公开(公告)日：2000-02-08

申请号：US296003

申请日：1999-04-21

申请人： Bruce W. Nichols

发明人： Bruce W. Nichols

IPC分类号： H01H1/00 ,  H01H33/02 ,  H01H33/75

CPC分类号： H01H1/0015 ,  H01H2001/0026 ,  H01H2009/0061

摘要： The design of electrical switches that operate under load (with current flowing) requires replacement of the electrical contact after erosion and wear experienced by arcing and raised temperatures reduce functionality below acceptable limits.A quantity of trace element or compound is implanted at a depth representative of the point at which wear or erosion requires contact replacement. When exposed by wear or erosion, the quantity of the trace element is released into the oil or other medium surrounding the contact, providing an indication of excessive wear.

摘要翻译： 在负载（电流流动）下工作的电气开关的设计需要更换电气接触器后，电弧和磨损经历的磨损和升高的温度将功能降低到可接受的极限以下。 在代表磨损或侵蚀需要接触更换的点的深度处植入一定量的微量元素或化合物。 当磨损或腐蚀暴露时，微量元素的量被释放到油或围绕接触的其它介质中，提供过度磨损的迹象。

公开(公告)号：US4185177A

公开(公告)日：1980-01-22

申请号：US882583

申请日：1978-03-02

申请人： Clyde Gilker ,  Arland D. Lamke

发明人： Clyde Gilker ,  Arland D. Lamke

IPC分类号： G01R31/00 ,  G05F1/147 ,  H01F27/40 ,  H01F29/02 ,  H02H7/055 ,  H01H3/00

CPC分类号： H02H7/055 ,  G01R31/00 ,  G05F1/147 ,  H01F27/402 ,  H01F29/02 ,  H01H2009/0061

摘要： A tap-changing transformer system, utilized for voltage regulation of the line potential applied to a load from a source of energy, has a non-arcing switch to protect tap contacts during a tap change. A fail-safe circuit is utilized to determine that the non-arcing switch and its associated circuitry are operating properly before a movable tap contact is transferred from one stationary tap to another. In the event that the fail-safe circuit detects an improper operation of the non-arcing switch, the source is connected directly to the load to preclude the passage of any load current through the tap-changing transformer. A particular form of transfer switch useful in effecting the connection of the source directly to the load employs a current-limiting impedance arrangement.

摘要翻译： 用于对来自能源的负载施加的线路电位的电压调节的分接变压变压器系统具有非起弧开关以在分接变换期间保护抽头接触。 使用故障安全电路来确定非起弧开关及其相关联的电路在可移动的分接触头从一个固定接头传送到另一个固定接头之前正常工作。 在故障安全电路检测到非起弧开关的不正确操作的情况下，源直接连接到负载，以阻止任何负载电流通过分接变换变压器。 用于实现源极与负载的连接的特定形式的转换开关采用限流阻抗布置。

公开(公告)号：US4090225A

公开(公告)日：1978-05-16

申请号：US761011

申请日：1977-01-21

申请人： Clyde Gilker ,  Arland D. Lamke

发明人： Clyde Gilker ,  Arland D. Lamke

IPC分类号： G01R31/00 ,  G05F1/147 ,  H01F27/40 ,  H01F29/02 ,  H02H7/055 ,  H02H7/22 ,  H02P13/04

CPC分类号： H01F29/02 ,  G01R31/00 ,  G05F1/147 ,  H01F27/402 ,  H02H7/055 ,  H01H2009/0061

摘要： A tap-changing transformer system, utilized for voltage regulation of the line potential applied to a load from a source of energy, has a non-arcing switch to protect tap contacts during a tap change. A fail-safe circuit is utilized to determine that the non-arcing switch and its associated circuitry are operating properly before a movable tap contact is transferred from one stationary tap to another. In the event that the fail-safe circuit detects an improper operation of the non-arcing switch, the source is connected directly to the load to preclude the passage of any load current through the tap-changing transformer. A particular form of transfer switch useful in effecting the connection of the source directly to the load employs a current-limiting impedance arrangement.

摘要翻译： 用于对来自能源的负载施加的线路电位的电压调节的分接变压变压器系统具有非起弧开关以在分接变换期间保护抽头接触。 使用故障安全电路来确定非起弧开关及其相关联的电路在可移动的分接触头从一个固定接头传送到另一个固定接头之前正常工作。 在故障安全电路检测到非起弧开关的不正确操作的情况下，源直接连接到负载，以阻止任何负载电流通过分接变换变压器。 用于实现源极与负载的连接的特定形式的转换开关采用限流阻抗布置。