Tap changing assembly for power transformer
    11.
    发明授权
    Tap changing assembly for power transformer 有权
    电动变压器分接组件

    公开(公告)号:US06965217B2

    公开(公告)日:2005-11-15

    申请号:US10790326

    申请日:2004-02-27

    IPC分类号: H01H9/16 G05F1/153

    CPC分类号: H01H9/168 H01H2009/0061

    摘要: A tap changing assembly for power transformers having vacuum interrupters each of which is associated with a radio interrogated surface wave sensor capable of detecting whether the respective vacuum interrupter opens circuit in a timely manner. The sensors are interrogated by an interrogating unit transmitting high-frequency signals to the sensors and associated with a monitoring circuit responsive to signals received by the interrogating unit for signalling the status of the vacuum interrupter.

    摘要翻译: 一种用于具有真空断路器的电力变压器的抽头变换组件,每个组件与能够检测各个真空断路器是否及时打开电路的无线电询问表面波传感器相关联。 传感器被询问单元询问,该询问单元响应于由询问单元接收的信号向传感器发送高频信号并与监视电路相关联,以用于发信号通知真空断续器的状态。

    Method for dehumidifying air and air dehumidifier for oil-insulated transformers, reactance coils and step switches
    12.
    发明授权
    Method for dehumidifying air and air dehumidifier for oil-insulated transformers, reactance coils and step switches 有权
    用于油绝缘变压器,电抗线圈和步进开关的空气和空气除湿机的除湿方法

    公开(公告)号:US07468091B2

    公开(公告)日:2008-12-23

    申请号:US10576157

    申请日:2004-12-03

    IPC分类号: H01F27/14 B01D53/26

    摘要: The invention relates to a method for dehumidifying air and to an air dehumidifier. To this end, a filter element is provided that is filled with granular material that can be regenerated by baking out. For effecting this baking out, a heating device is provided that is only actuated when both a humidity sensor indicates that a humidity limit value has been exceeded as well as a relative pressure sensor or a comparable technical means indicates that, at the moment, no flow toward the oil expansion tank is recorded.

    摘要翻译: 本发明涉及一种对空气和空气除湿器进行除湿的方法。 为此,提供一种填充有能够通过烘烤再生的颗粒材料的过滤元件。 为了实现这种烘烤,提供一种加热装置,其仅当湿度传感器指示已经超过湿度极限值以及相对压力传感器或相当的技术手段表示当时没有流动 朝向油压罐记录。

    Method of monitoring a tap selector
    13.
    发明授权
    Method of monitoring a tap selector 有权
    监控分接选择器的方法

    公开(公告)号:US06124726A

    公开(公告)日:2000-09-26

    申请号:US168008

    申请日:1998-10-07

    摘要: A tap selector for a power transformer switchable under load is monitored by detecting the effective values of current and voltage of the drive motor of the tap changer. The power is calculated and from that the instantaneous torque and the latter is compared with setpoint values either of the torque and position of the tap selector or in terms of characteristic segments of the torque versus time graph with normalized segments of a setpoint graph so that, with serious deviation an immediate shutdown of tap selector operations is ensured or information can be generated as to trends or the need for maintenance.

    摘要翻译: 通过检测分接开关的驱动电机的电流和电压的有效值来监控负载下可切换电源变压器的分接选择器。 计算功率,并从中将瞬时转矩和后者与分接选择器的转矩和位置之一或转矩对时间图的特征段与设定点图的归一化段进行比较, 严重偏差确保分接选择器操作立即关闭,或者可以根据趋势或维护需要生成信息。

    Method of monitoring a tap changer
    14.
    发明授权
    Method of monitoring a tap changer 有权
    监控分接开关的方法

    公开(公告)号:US6100674A

    公开(公告)日:2000-08-08

    申请号:US174566

    申请日:1998-10-16

    CPC分类号: H01H9/0005 H01H2009/0061

    摘要: A method of monitoring a tap changer in which measured values representing the status of the tap change operation are associated with positions of the tap changer and the position range or time range for the tap change is subdivided into partial intervals for which characteristic values of the measurement are calculated by a calculating rule, e.g. averaging. These characteristic values are compared with stored parameter data and operation categories are established which are then used exclusively for the further information processing.

    摘要翻译: 一种监测分接开关的方法,其中表示抽头变换操作的状态的测量值与抽头变换器的位置相关联,并且抽头变化的位置范围或时间范围被分为部分间隔,测量的特征值 通过计算规则计算,例如 平均 将这些特征值与存储的参数数据进行比较,并建立操作类别,然后专门用于进一步的信息处理。

    DRIVE FOR A TAP CHANGER
    15.
    发明申请
    DRIVE FOR A TAP CHANGER 审中-公开
    驱动一个TAP更换

    公开(公告)号:US20150022294A1

    公开(公告)日:2015-01-22

    申请号:US14364965

    申请日:2013-01-15

    IPC分类号: H01H3/32

    摘要: The invention relates to a drive unit for a step switch for actuating switch contacts. The problem addressed by the invention is that of providing a drive unit for a step switch which is arranged closer to the step switch, guarantees a fast and safe actuation of the step switch and also has a compact design. The problem is solved by a drive unit which consists of a lift magnet arranged directly on the switch contact, which opens or closes the switch contact by applying a voltage.

    摘要翻译: 本发明涉及用于致动开关触点的步进开关的驱动单元。 本发明解决的问题在于提供一个靠近台阶开关设置的步进开关的驱动单元,保证了步进开关的快速和安全的动作,并具有紧凑的设计。 该问题由驱动单元解决,驱动单元由直接布置在开关触点上的升降磁体组成,其通过施加电压来打开或闭合开关触点。

    Level gauge for oil-filled transformers, chokes and tap changers
    16.
    发明授权
    Level gauge for oil-filled transformers, chokes and tap changers 失效
    充油变压器,扼流圈和分接开关的液位计

    公开(公告)号:US06708562B2

    公开(公告)日:2004-03-23

    申请号:US10299375

    申请日:2002-11-19

    IPC分类号: G01F2330

    CPC分类号: G01F23/38 H01F27/14

    摘要: A liquid level indicator for an oil-filled transformer, power choke or tap changer in which a sensor part has a float which rises and falls with the oil level and rotates a sensor shaft and the sensor shaft is coupled to an indicator shaft on which a pointer is provided to cooperate with a dial. The gauge also includes a contactless angle encoder operating with a magnetic hub and coupled to the indicator shaft for outputting a signal representing the oil level.

    摘要翻译: 用于充油变压器,功率扼流圈或分接开关的液位指示器,其中传感器部分具有随油位升高和旋转的浮子,并且传感器轴旋转,并且传感器轴联接到指示轴上,在该指示轴上 提供指针与表盘配合。 仪表还包括一个非接触式角度编码器,它与磁性轮毂一起操作,并连接到指示轴上,用于输出表示油位的信号。

    POWER TRANSFORMER WITH ELECTRONIC COMPONENTS
    17.
    发明申请
    POWER TRANSFORMER WITH ELECTRONIC COMPONENTS 有权
    带电子元件的电力变压器

    公开(公告)号:US20150009001A1

    公开(公告)日:2015-01-08

    申请号:US14371212

    申请日:2013-02-18

    摘要: The invention relates to a power transformer with electronic components. The aim of the invention is to arrange the energy supply of the electronic components of a power transformer closer to the components and thus eliminate the disadvantages of the prior art. According to the invention, a stray field collector is brought into a stray field of the power transformer, whereby a voltage is generated.

    摘要翻译: 本发明涉及一种具有电子部件的电力变压器。 本发明的目的是将电力变压器的电子部件的能量供给更靠近部件,从而消除现有技术的缺点。 根据本发明,杂散场收集器被带入电力变压器的杂散场,从而产生电压。

    Method of Drying an Air Dehumidifier
    18.
    发明申请
    Method of Drying an Air Dehumidifier 有权
    干燥空气除湿机的方法

    公开(公告)号:US20090000472A1

    公开(公告)日:2009-01-01

    申请号:US12096837

    申请日:2007-01-31

    IPC分类号: B01D53/96 H01F27/14

    摘要: The invention relates to a method for controlling a heatable dehumidifier. The heating of the dehumidifier is to be actuated only when several congruent time windows within which a temperature gradient is greater than or equal to 0 could be determined during a certain period of time, i.e. the heating is to be actuated only when no air flows into the interior of the expansion vessel of the transformer.

    摘要翻译: 本发明涉及一种用于控制可加热除湿器的方法。 只有当在一定时间内可以确定温度梯度大于或等于0的几个全等时间窗口时,才能启动除湿器的加热,即仅当没有空气流入时才能启动加热 变压器膨胀容器的内部。

    Level gauge for oil-filled transformer, choke, or tap changer
    19.
    发明授权
    Level gauge for oil-filled transformer, choke, or tap changer 有权
    充油变压器,扼流圈或分接开关的液位计

    公开(公告)号:US07191648B2

    公开(公告)日:2007-03-20

    申请号:US11250773

    申请日:2005-10-14

    IPC分类号: G01F23/00

    摘要: An electric power apparatus has a oil-filled vessel in which a float is connected to a float shaft that rotates as the float rises and falls with the level of oil. A level indicator has a display shaft extending along and pivotal about an axis, and coupled to the float shaft. An indicia display adjacent the shaft is swept by a pointer fixed on the shaft and juxtaposed with the indicia display go that the level of the oil in the vessel is indicated by the pointer. A disk fixed to the shaft has an outer periphery with a region of a shape having a radius varying angularly from one end of the region to an opposite end of the region. A noncontact proximity sensor is radially spacedly juxtaposed with the region of the disk for producing an output corresponding to the radial distance between the region and the sensor.

    摘要翻译: 一种电力装置具有充油容器,在该容器中,浮子与浮子轴连接,浮子随着浮子的上升和下降而旋转。 液位指示器具有显示轴,该显示轴沿轴线延伸并且绕轴线枢转,并且联接到浮子轴。 靠在轴上的标记显示器被固定在轴上的指针扫过,并且与标记显示器并置,指示器中指示容器中的油位。 固定到轴的盘具有外周边,其外形具有半径从该区域的一端到该区域的相对端有角度变化的半径。 径向间隔地与盘的区域并置的非接触式接近传感器用于产生对应于区域和传感器之间的径向距离的输出。

    Air dehumidifier for oil-insulated transformers, choke coils and steps switches
    20.
    发明申请
    Air dehumidifier for oil-insulated transformers, choke coils and steps switches 有权
    用于油绝缘变压器,扼流线圈和步进开关的空气除湿器

    公开(公告)号:US20060162304A1

    公开(公告)日:2006-07-27

    申请号:US10547719

    申请日:2004-04-01

    IPC分类号: B01D45/00

    CPC分类号: H01F27/14

    摘要: A dehumidifier for an electrical-equipment air intake has an outer housing wall and a floor of a material with a high specific thermal conductivity downwardly closing the outer housing wall, having a downwardly tapering funnel-shaped inner surface formed with a central downwardly open port, and having a rounded edge where the surface meets the port. An inner air-permeable housing inside the outer housing wall holds a moisture-absorbing mass in the inner housing so that air drawn in through the port can pass through the mass and then into a space between the inner and outer housings. A moisture sensor between the housings and a heater in the mass are connected to a controller that energizes the sensor and cooks moisture out of the mass such that the moisture condenses on the floor and runs over the edge out through the port.

    摘要翻译: 用于电气设备进气的除湿器具有外部壳体壁和具有高比热导率的材料的底板,向下关闭外部壳体壁,具有形成有中心向下开口的向下锥形的漏斗形内表面, 并且具有圆形边缘,其中表面与端口相交。 外壳体内部的透气性内部壳体在内壳体中容纳吸湿物质,使得通过口吸入的空气可穿过物料,然后进入内壳体和外壳体之间的空间。 外壳之间的水分传感器和质量块中的加热器连接到控制器,该控制器为传感器通电并将水分从质量中煮出,使得水分在地板上冷凝并通过端口流过边缘。