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1.发明授权Stator core for large electric generator with dual dovetail slots for engaging wedges 失效具有双楔形槽的大型发电机定子芯，用于接合楔形
公开(公告)号：US4572980A
公开(公告)日：1986-02-25
申请号：US656107
申请日：1984-09-28
摘要： A stator core for a dynamoelectric machine includes two pairs of dovetail slots disposed at respective predetermined radial positions in each armature slot. All stator slots contain armature bars. A few equally spaced stator slots also contain "P" bars atop or radially inward from armature bars. Wedges are installed in the radially outer dovetail slots of stator slots containing only armature bars. Wedges are installed in radially inner dovetail slots in stator slots containing both armature bars and "P" bars.
摘要翻译： 用于电动机的定子铁心包括设置在每个电枢槽中相应的预定径向位置处的两对燕尾槽。 所有定子槽都包含电枢棒。 几个等间隔的定子槽也在电枢杆顶部或径向向内含有“P”棒。 楔子安装在仅包含电枢棒的定子槽的径向外部燕尾槽中。 楔子安装在包含电枢棒和“P”条的定子槽的径向内部燕尾槽中。
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公开(公告)号：US4682068A
公开(公告)日：1987-07-21
申请号：US776331
申请日：1985-09-16
摘要： An excitation system of a large dynamoelectric machine includes an excitation transformer having a liquid coolant system. The coolant system of the transformer is supplied with a liquid coolant, preferably from an existing source of de-ionized water, thereby permitting a smaller transformer to be used and/or the output rating of the transformer (and ultimately the output rating of the machine) to be increased, while using the same size transformer. The transformer may be disposed separate from, yet closely proximate, the machine.
摘要翻译： 大型电动机的励磁系统包括具有液体冷却剂系统的励磁变压器。 变压器的冷却剂系统优选地由现有的去离子水源供应液体冷却剂，从而允许使用较小的变压器和/或变压器的输出额定值（最终输出额定值） ）增加，同时使用相同尺寸的变压器。 变压器可以与机器分开设置，但是紧密接近。
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3.发明授权Coil assembly and support system for a transformer and a transformer employing same 失效用于变压器和采用其的变压器的线圈组装和支撑系统
公开(公告)号：US4663604A
公开(公告)日：1987-05-05
申请号：US818843
申请日：1986-01-14
CPC分类号： H01F27/327 , H01F27/306 , H01F2027/328
摘要： A coil assembly includes a first winding for circumferentially surrounding at least a portion of a leg of a transformer core, a second winding spaced from and circumferentially surrounding at least a portion of the first winding, first supports, such as axially extending insulative rods, disposed between the first and second winding, for inhibiting axial motion of the second winding relative to the first winding and a second support disposed about at least a portion of the outer periphery of the second winding for inhibiting radial motion of the second winding relative to the first winding. Encapsulating material, such as an epoxy resin having glass fibers disposed therethrough, is disposed between the first winding and the leg, between the first and second winding and disposed about the second support for forming a monolithic structure. In a transformer including such a coil assembly, the leg and conductors forming the windings may be fluid cooled. In a method for forming a coil assembly, the encapsulating material is flowed from the bottom of the assembly to fill spaces and to avoid formation of bubbles therein before curing.
摘要翻译： 线圈组件包括用于周向地围绕变压器芯的腿的至少一部分的第一绕组，与第一绕组的至少一部分间隔开并沿周向包围的第二绕组，第一支撑件，例如轴向延伸的绝缘杆，设置在 在所述第一和第二绕组之间，用于阻止所述第二绕组相对于所述第一绕组的轴向运动，以及围绕所述第二绕组的外周的至少一部分设置的第二支撑件，用于阻止所述第二绕组相对于所述第一绕组的径向运动 绕组。 诸如具有穿过玻璃纤维的环氧树脂的封装材料设置在第一绕组和腿之间，在第一和第二绕组之间，并围绕第二支撑件设置以形成整体结构。 在包括这种线圈组件的变压器中，形成绕组的腿和导体可以是流体冷却的。 在用于形成线圈组件的方法中，封装材料从组件的底部流动以填充空间，并且在固化之前避免其中形成气泡。
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公开(公告)号：US4910421A
公开(公告)日：1990-03-20
申请号：US267587
申请日：1988-11-07
CPC分类号： H02K19/28
摘要： A P-bar excitation system employs a generator having means for adjusting the voltage and current available from the P-bars. In some installations, the direct output of the P-bars can be connected directly to the rectifier and control circuit for development of dc excitation power. This permits elimination of the conventional excitation transformer and overall simplification of the excitation system. The voltage and current are adjusted using paired P-bars per phase, wherein each pair of P-bars is connected in series, and angularly displaced from each other about the inner circumference of the armature to attain a vector sum of voltages yielding and desired voltage per phase. In another embodiment, the generator magnetic flux, or equivalently, the number of armature turns is adjusted to yield the desired P-bar voltage and current.
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5.发明授权
公开(公告)号：US4862956A
公开(公告)日：1989-09-05
申请号：US138007
申请日：1988-02-23
IPC分类号： H01F27/10
CPC分类号： H01F27/10
摘要： Apparatus for containing liquid coolant within a liquid cooled transformer includes a vessel having opposing sides for forming a chamber. The chamber is prevented from decreasing below a predetermined volume limit when compressive force is applied to the vessel by providing separation elements which are coupled to at least one of the sides and extend into the chamber for contacting the other side when the limit is reached, thereby preventing further volume reduction of the chamber. When a liquid under pressure is supplied to the chamber the vessel tends to expand, such that when the apparatus is disposed between laminations of a core of a transformer for cooling the transformer, force is exerted on the laminations, thereby ensuring that the laminations do not loosen under adverse operating conditions.
摘要翻译： 在液冷变压器内容纳液体冷却剂的装置包括具有用于形成室的相对侧的容器。 当压缩力施加到容器时，通过提供分离元件，当达到限制时，连接到至少一个侧面并延伸到室中以接触另一侧，防止室被降低到预定体积极限以下，从而 防止腔室进一步减小体积。 当将压力下的液体供应到室时，容器趋于膨胀，使得当将该装置设置在用于冷却变压器的变压器的铁心的叠片之间时，力施加在叠片上，从而确保叠片不 在不利的操作条件下松动。
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