公开(公告)号：US20100073012A1

公开(公告)日：2010-03-25

申请号：US11993471

申请日：2006-06-22

申请人： Yoshiyuki Inoue ,  Hideyuki Shimada ,  Shinobu Sekito ,  Hiroshi Hasegawa ,  Hiroshi Kaneiwa ,  Shinji Uemoto ,  Junichi Hirai

发明人： Yoshiyuki Inoue ,  Hideyuki Shimada ,  Shinobu Sekito ,  Hiroshi Hasegawa ,  Hiroshi Kaneiwa ,  Shinji Uemoto ,  Junichi Hirai

IPC分类号： H01H31/12

CPC分类号： H02K9/24 ,  H02K11/20

摘要： According to the present invention, a method of detecting water leakage in a coil, which determines whether or not cooling water leaks into an insulation layer, the water being supplied to a conductor of a coil covered with the insulation layer, including: applying an AC voltage to the conductor; bringing a surface electrode device into pressure contact with the insulation layer; grounding the surface electrode device through an impedance; measuring a potential of the surface electrode device; and determining that the cooling water leaks from the conductor into the insulation layer when a measured potential is higher than a potential of a normal coil

摘要翻译： 根据本发明，一种检测线圈中漏水的方法，其确定冷却水是否泄漏到绝缘层中，所述水被供应到被绝缘层覆盖的线圈的导体，包括：施加AC 导体电压; 使表面电极器件与绝缘层压力接触; 通过阻抗使表面电极器件接地; 测量表面电极器件的电位; 并且当测量电位高于正常线圈的电位时，确定冷却水从导体泄漏到绝缘层中

公开(公告)号：US20070139056A1

公开(公告)日：2007-06-21

申请号：US11676932

申请日：2007-02-20

申请人： Hiroshi KANEIWA ,  Masahiro Sakai ,  Yoshiyuki Inoue ,  Shinobu Sekito

发明人： Hiroshi KANEIWA ,  Masahiro Sakai ,  Yoshiyuki Inoue ,  Shinobu Sekito

IPC分类号： H01H9/50

CPC分类号： G01R31/1227 ,  G01R31/34 ,  G01R31/346

摘要： A partial discharge detection apparatus of an electrical rotating machine includes a metal frame connected to a stator frame of the electrical rotating machine, a power line connected to one of a stator winding corresponding to one phase of three phases in the metal frame and a neutral point lead line connected to a neutral point of three-phase stator windings and arranged in the metal frame to propagate a partial discharge signal generated by degradation of the stator winding, a sensor including a rod antenna which is installed around the power line or neutral point lead line in the metal frame to electrostatically and magnetically induce the partial discharge signal propagated to the power line or neutral point lead line, and a detector which receives, via a signal lead line, a signal generated in the sensor and detects partial discharge by signal processing.

摘要翻译： 旋转电机的局部放电检测装置包括连接到旋转电机的定子框架的金属框架，连接到对应于金属框架中的三相一相的定子绕组中的一个的电力线，以及中性点 引线连接到三相定子绕组的中性点并且布置在金属框架中以传播由定子绕组的劣化产生的局部放电信号，传感器包括安装在电力线或中性点引线周围的杆状天线 金属框架中的线路静电并且磁感应传播到电力线或中性点引线的局部放电信号，以及检测器，其经由信号引线接收在传感器中产生的信号并且通过信号处理检测局部放电 。

公开(公告)号：US5736655A

公开(公告)日：1998-04-07

申请号：US660591

申请日：1996-06-11

申请人： Shinobu Sekito ,  Yukio Kanazawa ,  Norikazu Arima ,  Hiromichi Ito ,  Susumu Nagano ,  Makoto Tari ,  Takeshi Tanii

发明人： Shinobu Sekito ,  Yukio Kanazawa ,  Norikazu Arima ,  Hiromichi Ito ,  Susumu Nagano ,  Makoto Tari ,  Takeshi Tanii

IPC分类号： H02K11/00 ,  G01N33/00 ,  G01N33/20 ,  G01N33/44 ,  G01R31/06 ,  H02K15/04 ,  H02H7/08

CPC分类号： G01R31/346 ,  G01N33/20

摘要： A remaining life of a stator coil resulting from galvanic corrosion between different kinds of metals in a rotating machine adopting a water cooling system and remaining life of a stator coil's insulating layer resulting from a wet heat degeneration can be positively and integrally evaluated according to the present invention by sampling a brazing section between the stator coil clip and copper wires, cutting off the sampled brazing section in a copper wire array direction, measuring a joined section brazed with a brazing material as a copper wire direction length and finding an effective sealing length of that brazing section or sampling an insulating layer of the stator coil, finding infrared spectra of the insulating layer, comparing the infrared spectra of the insulating layer of the stator coil with infrared spectra of a healthy stator coil's insulating layer not penetrated by water, finding difference spectra of an ester group of an epoxy resin used as a bonding agent of the insulating layer and predicting a period of water penetration into the stator coil's insulating layer as a wet heat degeneration period, on the basis of the difference spectra of an ester group, with the use of a relation between the difference spectra of the ester group initially found and an aging time.

摘要翻译： 由采用水冷系统的旋转机械中的不同种类的金属之间的电偶腐蚀导致的定子线圈的剩余寿命和根据本发明的定子线圈的绝缘层的剩余寿命可以根据现在进行积极且一体的评估 通过对定子线圈夹和铜线之间的钎焊部进行取样来切断铜线排列方向的取样钎焊部，测定钎焊钎焊材料的接合部的铜线方向长度，求出有效密封长度 对该定子线圈的绝缘层进行钎焊，或者对定子线圈的绝缘层进行取样，找到绝缘层的红外光谱，将定子线圈的绝缘层的红外光谱与健康的定子线圈绝缘层的红外光谱进行比较， 用作绝缘体的粘合剂的环氧树脂的酯基的光谱 基于酯基的差分光谱，使用最初发现的酯基的差分谱之间的关系来预测作为湿热变性周期的水渗入定子线圈绝缘层的时间段 和老化时间。

公开(公告)号：US07507911B2

公开(公告)日：2009-03-24

申请号：US11757788

申请日：2007-06-04

申请人： Katsuhiko Yoshida ,  Noriyuki Iwata ,  Hiroshi Hatano ,  Susumu Nagano ,  Shinobu Sekito ,  Toshimitsu Yamada ,  Makoto Kawahara

发明人： Katsuhiko Yoshida ,  Noriyuki Iwata ,  Hiroshi Hatano ,  Susumu Nagano ,  Shinobu Sekito ,  Toshimitsu Yamada ,  Makoto Kawahara

IPC分类号： H01B7/00

CPC分类号： H02K3/30 ,  H02K3/345

摘要： A coil for an electric rotating machine is configured with a conductor which is formed by bundling a plurality of square strands and stacking the square strands like a coil with Roebel transposition, mica tape which is wound a plurality of layers around an outer surface of the conductor and made up of mica paper and glass cloth backing, and an insulation wall formed by impregnating and curing resin between wound layers of the mica tape. Inorganic particles are supported with the glass cloth backing on the mica tape using an adhesive containing glue insoluble in the impregnated resin as an indispensable component.

摘要翻译： 用于旋转电机的线圈被配置有导体，该导体通过捆扎多个正方形的线束并且如Roebel转置堆叠方形线圈一样的线圈而形成，云母带围绕导体的外表面缠绕多层 并且由云母纸和玻璃布背衬构成，并且通过在云母带的缠绕层之间浸渍和固化树脂形成的绝缘壁。 无机颗粒用云母带上的玻璃布背衬支撑，使用含有不溶于浸渍树脂的胶水的粘合剂作为不可或缺的组分。

公开(公告)号：US20090072654A1

公开(公告)日：2009-03-19

申请号：US12043100

申请日：2008-03-05

申请人： Hiroshi Hatano ,  Katsuhiko Yoshida ,  Toshimitsu Yamada ,  Shinobu Sekito ,  Susumu Nagano ,  Hiroyoshi Tsuchiya

发明人： Hiroshi Hatano ,  Katsuhiko Yoshida ,  Toshimitsu Yamada ,  Shinobu Sekito ,  Susumu Nagano ,  Hiroyoshi Tsuchiya

IPC分类号： H02K3/34

CPC分类号： H02K3/40

摘要： A coil insulator of an electrical rotating machine used as a main insulator for insulating a bundle of conductors formed of a plurality of insulated wires to form an armature coil provided in a slot of a rotor core or a stator core of an electrical rotating machine, wherein the coil insulator includes a mica layer including at least one of a peeled-off mica and a composite mica, a woven- or unwoven cloth including at least one of inorganic and organic materials, hexagonal crystal boron nitride particles having a graphitization index of 1.8 or more, and thermosetting polymer organic resin which integrally connects the mica layer and the hexagonal crystal boron nitride particles to each other, and the hexagonal crystal boron nitride particles is oriented in a longitudinal direction of the coil.

摘要翻译： 一种旋转电机的线圈绝缘体，用作绝缘体，用于绝缘由多根绝缘导线形成的导体束，以形成设置在旋转电机的转子芯或定子芯的槽中的电枢线圈，其中 线圈绝缘体包括云母层，其包括剥离云母和复合云母中的至少一种，包含无机和有机材料中的至少一种的织造或非织造布，石墨化指数为1.8的六方晶结晶氮化硼颗粒或 和将云母层和六方晶结晶氮化硼颗粒彼此整体连接的热固性聚合物有机树脂，并且六方晶系氮化硼颗粒沿着线圈的纵向取向。

公开(公告)号：US07973243B2

公开(公告)日：2011-07-05

申请号：US12043100

申请日：2008-03-05

申请人： Hiroshi Hatano ,  Katsuhiko Yoshida ,  Toshimitsu Yamada ,  Shinobu Sekito ,  Susumu Nagano ,  Hiroyoshi Tsuchiya

发明人： Hiroshi Hatano ,  Katsuhiko Yoshida ,  Toshimitsu Yamada ,  Shinobu Sekito ,  Susumu Nagano ,  Hiroyoshi Tsuchiya

IPC分类号： H01B17/00

CPC分类号： H02K3/40

摘要： A coil insulator of an electrical rotating machine used as a main insulator for insulating a bundle of conductors formed of a plurality of insulated wires to form an armature coil provided in a slot of a rotor core or a stator core of an electrical rotating machine, wherein the coil insulator includes a mica layer including at least one of a peeled-off mica and a composite mica, a woven- or unwoven cloth including at least one of inorganic and organic materials, hexagonal crystal boron nitride particles having a graphitization index of 1.8 or more, and thermosetting polymer organic resin which integrally connects the mica layer and the hexagonal crystal boron nitride particles to each other, and the hexagonal crystal boron nitride particles is oriented in a longitudinal direction of the coil.

摘要翻译： 一种旋转电机的线圈绝缘体，用作绝缘体，用于绝缘由多根绝缘导线形成的导体束，以形成设置在旋转电机的转子芯或定子芯的槽中的电枢线圈，其中 线圈绝缘体包括云母层，其包括剥离云母和复合云母中的至少一种，包含无机和有机材料中的至少一种的织造或非织造布，石墨化指数为1.8的六方晶结晶氮化硼颗粒或 和将云母层和六方晶结晶氮化硼颗粒彼此整体连接的热固性聚合物有机树脂，并且六方晶系氮化硼颗粒沿着线圈的纵向取向。

公开(公告)号：US07294788B2

公开(公告)日：2007-11-13

申请号：US10690644

申请日：2003-10-23

申请人： Katsuhiko Yoshida ,  Noriyuki Iwata ,  Hiroshi Hatano ,  Susumu Nagano ,  Shinobu Sekito ,  Toshimitsu Yamada ,  Makoto Kawahara

发明人： Katsuhiko Yoshida ,  Noriyuki Iwata ,  Hiroshi Hatano ,  Susumu Nagano ,  Shinobu Sekito ,  Toshimitsu Yamada ,  Makoto Kawahara

IPC分类号： H01B7/00

CPC分类号： H02K3/30 ,  H02K3/345

摘要： A coil for an electric rotating machine is configured with a conductor which is formed by bundling a plurality of square strands and stacking the square strands like a coil with Roebel transposition, mica cape which is wound a plurality of layers around an outer surface of the conductor and made up of mica paper and glass cloth backing, and an insulation wall formed by impregnating and curing resin between wound layers of the mica tape. Inorganic particles are supported with the glass cloth backing on the mica tape using an adhesive containing glue insoluble in the impregnated resin as an indispensable component.

摘要翻译： 用于旋转电机的线圈配置有导体，该导体通过捆扎多个正方形的线并且将方形线如Roebel转置的线圈堆叠而形成，云母帽围绕导体的外表面缠绕多层 并且由云母纸和玻璃布背衬构成，并且通过在云母带的缠绕层之间浸渍和固化树脂形成的绝缘壁。 无机颗粒用云母带上的玻璃布背衬支撑，使用含有不溶于浸渍树脂的胶水的粘合剂作为不可或缺的组分。