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    • 1. 发明专利
    • Automatic voltage regulator
    • 自动电压调节器
    • JP2014115770A
    • 2014-06-26
    • JP2012268325
    • 2012-12-07
    • Kansai Electric Power Co Inc:The関西電力株式会社Daihen Corp株式会社ダイヘン
    • MATSUURA YASUOMORITA TOMOHIKOKANJA SHOJISHIRATO NORIAKISHOJI KENICHIHISATOMI KAZUO
    • G05F1/20H01F29/04H02J3/12
    • PROBLEM TO BE SOLVED: To provide an automatic voltage regulator which constitutes a tap switching device using an AC thyristor switch of an air specification so as to reduce a cost and enhances easiness of the maintenance.SOLUTION: Tap changeover devices 4u to 4w are constituted by using a three phase alternating current thyristor switch of an air-specification as tap changeover switches A, B, C, T1, T2, and S. The three phase alternating current thyristor switch includes: a main circuit switch for three phases composed of a thyristor; a power supply portion for control for rectifying the three phase voltage taken from one end of the main circuit switch and for outputting a direct current voltage; and a control portion for giving a trigger signal to the thyristor with the output voltage of the power supply for control used as a power supply voltage. The three phase line voltage of all the energization taps connected with the three phase alternating current thyristor is maintained at the minimum operation guarantee voltage or above which is necessary for the three phase alternating current thyristor switch to stably operate by providing a tap te dedicated for grounding other than current-carrying taps ta to td for a low-voltage winding of regulating transformers 3u to 3w.
    • 要解决的问题:提供一种使用空气规格的交流晶闸管开关构成抽头开关装置的自动电压调节器,以降低成本并增加维护的容易度。解决方案:抽头转换装置4u至4w由 使用空气规格的三相交流晶闸管开关作为分接转换开关A,B,C,T1,T2和S.三相交流晶闸管开关包括:三相主电路开关,由三晶闸管 ; 电源部分,用于对从主电路开关的一端取得的三相电压进行整流并输出直流电压; 以及控制部分,用于以用作电源电压的用于控制的电源的输出电压向晶闸管提供触发信号。 与三相交流晶闸管连接的所有通电抽头的三相线电压保持在三相交流晶闸管开关稳定工作所需的最小工作保证电压或以上,提供专用于接地的接头 调压变压器3u〜3w的低压绕组以外的载流用抽头ta〜td。
    • 3. 发明专利
    • Transformer
    • 变压器
    • JP2014146719A
    • 2014-08-14
    • JP2013014926
    • 2013-01-30
    • Daihen Corp株式会社ダイヘン
    • HISATOMI KAZUOJOKO KAZUYOSHIOISHI MASANORIOSHIMA HIROSHI
    • H01F27/24H01F27/25H01F41/02
    • PROBLEM TO BE SOLVED: To provide a transformer which can be made compact without deteriorating magnetic characteristics of an iron core and by suppressing a height of a wrapped part of a wound core.SOLUTION: A wound core 1 is formed from a block Band a plurality of magnetic band plates S forming the block B. One of the plurality of magnetic band plates is wound while mutually overlapping both end portions to be a joint portion. A plurality of blocks are laminated while deviating the magnetic band plate to be overlapped at an outer circumferential side more in a winding direction with respect to the joint portion of neighboring magnetic band plates for one of the plurality of blocks. When the number of magnetic band plates forming a block Bof the wound core is defined as L and the number of magnetic band plates constituting a block Badjacent closer to the outer circumference than the block Bis defined as N, a relation between the numbers of magnetic band plates in at least neighboring sets of blocks becomes L
    • 要解决的问题:提供一种变压器,其可以在不劣化铁芯的磁特性并且抑制卷绕的芯的缠绕部分的高度的情况下制造而成。解决方案:卷绕芯1由块带形成多个 的磁带板S形成块B.多个磁带板中的一个缠绕在两个端部上作为接合部分相互重叠。 相对于多个块中的一个块的相邻磁带板的接合部分,多个块被层叠,同时使磁带板在外圆周侧更多地沿着卷绕方向重叠。 当形成卷绕铁芯的块B的磁带的数量被定义为L和构成比限定为N的块Bis更靠近外圆的块的磁带的数量时,磁带数之间的关系 至少相邻组块中的板变为L