APPARATUS AND METHOD FOR DETECTING A LIQUID CONTAMINANT IN A ROTATING CAVITY OF AN ELECTRIC MACHINE

    公开(公告)号:US20240003975A1

    公开(公告)日:2024-01-04

    申请号:US18255734

    申请日:2021-12-02

    CPC classification number: G01R31/34 F03B13/10 H02K11/20 H02K7/1823

    Abstract: The apparatus can be used for detecting a liquid contaminant in a rotating cavity of an electric machine. The apparatus can have a magnetic field source mounted to a non-rotary base and transmitting a magnetic field across a gap between the base a housing of the cavity, an interrogation circuit having a coil magnetically coupled to the magnetic field source across the gap via the magnetic field, and a distal circuit portion having electrical contacts separated by a spacing fluidly communicating with the cavity; and a detection circuit mounted to the base and having a coil magnetically coupled to the magnetic field and a detector detecting a variation occurring in the detection circuit upon change of a permittivity of the liquid across the spacing, the variation being indicative of the liquid contaminant.

    System and method for vibration severity assessment independently of vibration frequency
    3.
    发明授权
    System and method for vibration severity assessment independently of vibration frequency 有权
    独立于振动频率的振动严重性评估系统和方法

    公开(公告)号:US09595179B2

    公开(公告)日:2017-03-14

    申请号:US14430013

    申请日:2012-09-26

    CPC classification number: G08B21/182 G01H1/00 G01H1/003

    Abstract: The method includes receiving a real-time signal containing information pertaining to amplitude and frequency of vibrations of a machine component over a frequency spectrum including a first analysis bandwidth and a second analysis bandwidth, and using the real-time signal to determine values indicative of the severity of vibrations occurring at frequencies in the first analysis bandwidth in a first unit of one of displacement, velocity, and acceleration, and determine values indicative of the severity of vibrations occurring at frequencies in the second analysis bandwidth in a second unit of one of displacement, velocity and acceleration, the second unit being different from the first unit; and associating the determined values in a common unit representing comparable severity of vibrations in the first analysis bandwidth and the second analysis bandwidth.

    Abstract translation: 该方法包括在包括第一分析带宽和第二分析带宽的频谱上接收包含关于机器组件的振动的振幅和频率的信息的实时信号,并且使用该实时信号来确定指示 以位移,速度和加速度之一的第一单位中的第一分析带宽中的频率发生的振动的严重性,以及确定在第二分析带宽中以位移,速度和加速之一的第二单位中的频率发生的振动的严重性的值 速度和加速度,第二单元不同于第一单元; 以及将所确定的值与表示第一分析带宽和第二分析带宽中的相当的振动严重度的公共单元相关联。

    METHOD FOR THE DETECTION OF SHORTED TURNS ON SALIENT POLES OF ROTORS OF ELECTRIC ROTATING MACHINES
    4.
    发明申请
    METHOD FOR THE DETECTION OF SHORTED TURNS ON SALIENT POLES OF ROTORS OF ELECTRIC ROTATING MACHINES 审中-公开
    检测电动旋转机转子倾角短路的方法

    公开(公告)号:US20140070775A1

    公开(公告)日:2014-03-13

    申请号:US14022580

    申请日:2013-09-10

    Inventor: Marius CLOUTIER

    CPC classification number: G01R31/346 G01R31/343

    Abstract: A method for detecting shorted turns in the windings of salient rotor poles of an electric rotating machine, the method comprising: for each one of the salient rotor poles, measuring a radial magnetic flux between a stator of the electric rotating machine and the salient rotor pole, and measuring a thickness of an air-gap between the stator and the salient rotor pole; for each one of the salient rotor poles, determining an expected radial flux using the measured radial magnetic flux and the measured thickness of the air-gap; and identifying shorted turns by comparing, for each one of the salient rotor poles, the measured radial magnetic flux to the expected radial magnetic flux.

    Abstract translation: 一种用于检测旋转电机的转子极的绕组中的短路匝数的方法,所述方法包括:对于每个所述凸极转子极,测量所述旋转电机的定子与所述凸极转子极之间的径向磁通量 测量定子和凸极转子极之间的气隙的厚度; 对于每个突出的转子极,使用所测量的径向磁通量和所测量的气隙厚度来确定期望的径向磁通量; 并且通过将每个所述显着转子极比较所测量的径向磁通量与预期的径向磁通量进行比较来识别短路匝数。

    Fiber optic temperature sensor
    5.
    发明授权
    Fiber optic temperature sensor 有权
    光纤温度传感器

    公开(公告)号:US08277119B2

    公开(公告)日:2012-10-02

    申请号:US11978538

    申请日:2007-10-29

    CPC classification number: G01K11/3206 G01D5/268 G01D5/34 G01K5/52

    Abstract: A temperature sensor, capable of operating in electromagnetic and/or electric environments such as electrical generators, motors and transformers and/or in environments where vibratory conditions are frequent or continuous, contains at least one light emitting optic fiber and one light receiving optic fiber and an electrically non-conductive dilatable object which variably occults the emitted light as the object's temperature varies. The light receiving optic fiber transmits light intensity and light intensity changes to an electronic device that may include a photometer and light-to-temperature computing equipment.

    Abstract translation: 能够在诸如发电机,电动机和变压器的电磁和/或电气环境中和/或在振动条件频繁或连续的环境中操作的温度传感器包含至少一个发光光纤和一个光接收光纤, 当物体的温度变化时,可变地遮蔽发射的光的不导电的可扩展物体。 光接收光纤将光强度和光强变化传输到可包括光度计和光温计算设备的电子设备。

    SYSTEM AND METHOD FOR STATE MANAGEMENT
    6.
    发明公开

    公开(公告)号:US20230195063A1

    公开(公告)日:2023-06-22

    申请号:US17846090

    申请日:2022-06-22

    CPC classification number: G05B19/042 G05B2219/2642

    Abstract: The method can include building a current local state for the managed devices including retrieving from the managed devices, via a local network, a plurality of current states of corresponding managed devices, and integrating the plurality of current states into the current local state; retrieving, from a remote computer, via a telecommunications network, a target local state for the managed devices; computing a difference between the target local state and the current local state; computing actions based on the difference between the target local state and the current local state, said actions to be executed by the managed devices for bringing the current local state into compliance with the target local state; and communicating the actions to the managed devices, via the local network, for execution.

    SYSTEM AND METHOD FOR MANAGING MONITORTING EQUIPMENT OF A LARGE ELECTRIC MACHINE

    公开(公告)号:US20230194610A1

    公开(公告)日:2023-06-22

    申请号:US17846088

    申请日:2022-06-22

    CPC classification number: G01R31/343 H04L67/12 H02K7/1823

    Abstract: The method can include computing actions corresponding to the difference between a current local state of the managed devices and a target local state for the managed devices, said actions to be executed by the managed devices for bringing the current local state into compliance with the target local state; communicating the actions to the managed devices, via the local network, for execution; subsequently to said communicating instructions, monitoring current states of the managed devices, including detecting a change in the current states of the managed devices, the change reflecting the execution of at least one of the actions at the managed devices, and updating the current local state to reflect the change; computing updated actions corresponding to an updated difference between the current local state and the target local state, following said updating, said at least one executed action being absent from the updated actions; communicate the updated actions to the managed devices, via the local network.

    System and method for managing monitoring equipment of a large electric machine

    公开(公告)号:US12085616B2

    公开(公告)日:2024-09-10

    申请号:US17846088

    申请日:2022-06-22

    CPC classification number: G01R31/343 H04L67/12 H02K7/1823

    Abstract: The method can include computing actions corresponding to the difference between a current local state of the managed devices and a target local state for the managed devices, said actions to be executed by the managed devices for bringing the current local state into compliance with the target local state; communicating the actions to the managed devices, via the local network, for execution; subsequently to said communicating instructions, monitoring current states of the managed devices, including detecting a change in the current states of the managed devices, the change reflecting the execution of at least one of the actions at the managed devices, and updating the current local state to reflect the change; computing updated actions corresponding to an updated difference between the current local state and the target local state, following said updating, said at least one executed action being absent from the updated actions; communicate the updated actions to the managed devices, via the local network.

    Capacitive sensor
    10.
    发明授权

    公开(公告)号:US11125795B2

    公开(公告)日:2021-09-21

    申请号:US16568795

    申请日:2019-09-12

    Abstract: The capacitive sensor can have a sensing body having two flat conductor elements positioned parallel to one another and held spaced apart from one another, and having a thickness normal to the flat conductor elements, the sensing body having at least one aperture formed across its thickness. The capacitive sensor can be used to measure an air gap between a stator and rotor of a rotary electric machine, and the presence of the apertures can facilitate ventilation and/or improve linearization process of capacitive sensor through redistribution of its current vs distance signal along the measuring range, thus potentially increasing signal to noise ratio where it is the challenging to do so.

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