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29 条记录 (耗时 0.009 秒)

    Combined high-voltage current and voltage transformer
    2.
    发明授权
    Combined high-voltage current and voltage transformer 失效
    组合式高压电压互感器

    公开(公告)号：US4731599A

    公开(公告)日：1988-03-15

    申请号：US24682

    申请日：1987-03-11

    申请人： Norbert Preissinger

    发明人： Norbert Preissinger

    IPC分类号： H01F38/36 ,  H01F15/04 ,  H01F27/02 ,  H01F40/08

    CPC分类号： H01F38/36 ,  H01F2029/143

    摘要： A combined high voltage current and voltage transformer of head-type construction with a column of insulating material carrying the top housing whereby the active parts of the current transformer and above the same the active parts of the voltage transformer are arranged within the top housing. A simple manufacture of the top housing and a good seal with as few as possible lead-outs to be sealed off inside of the top housing is made possible by the construction of this invention. At the same time, the primary conductor of the current transformer as also the secondary system of the current transformer and the active parts of the voltage transformer are to be assemblable in a simple manner. This is achieved in that the primary conductor of the current transformer is constructed U-shaped whose base extends at least approximately concentrically through the ring of the secondary system of the current transformer. The two legs of the primary conductor protrude downwardly and are secured exclusively on the closure plate of the top housing from the inside thereof. At least one leg is electrically insulated from the metallic closure plate and is adapted to be contacted through the same from the outside and from below. The ring of the secondary system of the current transformer is also secured exclusively on the closure plate by way of supports.

    摘要翻译： 头式结构的组合高压电流和电压互感器，具有承载顶部壳体的绝缘材料柱，由此电流互感器的有源部分和变压器的有源部分与电压互感器的有源部分相同地布置在顶部壳体内。 通过本发明的构造，能够简单地制造顶部壳体并且通过尽可能少的密封件将顶部壳体内的密封的良好密封件制成。 同时，电流互感器的主导体以及电流互感器的二次系统和变压器的有源部分也可以简单的组装。 这是通过电流互感器的主导体构造成U形的，其基极至少大致同心地延伸通过电流互感器的次级系统的环。 主导体的两条腿向下突出，并且从其内部专门固定在顶部壳体的封闭板上。 至少一条腿与金属封闭板电绝缘，并且适于从外部和从下方与其相接触。 电流互感器的二次系统的环也通过支撑件专门固定在封闭板上。

    Potential-current transformer device
    5.
    发明授权
    Potential-current transformer device 失效
    潜在电流变压器装置

    公开(公告)号：US3729650A

    公开(公告)日：1973-04-24

    申请号：US3729650D

    申请日：1972-02-07

    申请人： COOK R

    发明人： COOK R

    IPC分类号： H01F38/36 ,  H02H7/04

    CPC分类号： H01F38/36

    摘要： The line potential and current measuring device consists of a standard or toroidal bushing current transformer, a desired number of cascaded current transformers connected in parallel with a series of precision or non-precision type grading impedance devices such as resistors, capacitors or the like alone or in conjunction with a low-loss potential transformer. This supplies electrical outputs which make the device suitable for accurately checking line potential and current on an indicating or recording instrument.

    摘要翻译： 线路电位和电流测量装置由标准或环形套管电流互感器组成，所需数量的级联电流互感器与一系列精密或非精密级分级阻抗装置并联连接，例如电阻器，电容器等，或者 结合低损耗电位变压器。 这提供电气输出，使得该装置适合于准确地检查指示或记录仪器上的线路电位和电流。

    Hook-on power factor, volt and ampere meter
    6.
    发明授权
    Hook-on power factor, volt and ampere meter 失效
    HOOK-ON功率因数，VOLT和AMPERE METER

    公开(公告)号：US3584299A

    公开(公告)日：1971-06-08

    申请号：US3584299D

    申请日：1969-07-11

    申请人： SUN OIL CO

    发明人： CSETE FRANK

    IPC分类号： G01R15/18 ,  H01F27/42 ,  H01F38/20 ,  H01F38/36 ,  H01F38/38 ,  G01R25/00 ,  G01R15/12

    CPC分类号： G01R15/185 ,  H01F27/422 ,  H01F38/20 ,  H01F38/36 ,  H01F38/38

    摘要： The split magnetic core or hook-on magnetic core of an alternating current measuring apparatus carries two separate and independent coils. By hooking the core on one-phase conductor of a three-phase electrical circuit and by supplying one coil with compensating current derived from the other phase conductors, the power factor of the circuit may be read on a meter connected to the other coil. By means of a suitable switching system, the core-coil-meter arrangement may also be used to measure either voltage or current in single-phase or polyphase circuits.

    INSTRUMENT TRANSFORMER AND METHOD TO ISOLATE PARTS
    9.
    发明申请
    INSTRUMENT TRANSFORMER AND METHOD TO ISOLATE PARTS 有权

    公开(公告)号：US20220319770A1

    公开(公告)日：2022-10-06

    申请号：US17626582

    申请日：2020-06-17

    申请人： Siemens Energy Global GmbH & Co. KG

    发明人： Fabrizio Negri ,  Dario Santinelli

    IPC分类号： H01F38/36 ,  H01F27/32 ,  H01F41/12 ,  H01F27/02

    摘要： An instrument transformer for high current and/or high voltage conversion has a housing and at least an active part, which is electrically insulated by an isolation material. The isolation material includes particles. A method for the instrument transformer includes the filling of a housing of the instrument transformer with particles, particularly with particles of paper material and/or cellulose, which were impregnated by an insulating fluid, particularly mineral oil and/or a synthetic oil, and/or ester, particularly vegetable esters.

    INSTRUMENT TRANSFORMER AND METHOD TO ISOLATE PARTS
    10.
    发明申请
    INSTRUMENT TRANSFORMER AND METHOD TO ISOLATE PARTS 有权

    公开(公告)号：US20220262560A1

    公开(公告)日：2022-08-18

    申请号：US17626584

    申请日：2020-06-12

    申请人： Siemens Energy Global GmbH & Co. KG

    发明人： Fabrizio Negri

    IPC分类号： H01F27/32 ,  H01F38/36 ,  H01F41/12 ,  H01F38/26 ,  H01B3/47

    摘要： An instrument transformer for high current and/or high voltage conversion includes a housing and at least an active part, which is electrically insulated by an isolation material. The isolation material includes or is a paste and/or pulp. A method for producing the instrument transformer includes the filling of a housing of the instrument transformer with paste and/or pulp, particularly with paste and/or pulp including paper material and/or cellulose, solved in a solvent, particularly at least one ionic liquid.