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    • 1. 发明授权
    • Circuit arrangement for large power transformers
    • 大功率变压器的电路布置
    • US4678927A
    • 1987-07-07
    • US662239
    • 1984-10-18
    • Werner SteinWalter Muller
    • Werner SteinWalter Muller
    • H01F27/34H01F29/02H01F37/00
    • H01F27/343H01F29/02
    • A circuit arrangement for large power transformers with a low-voltage winding, a main high-voltage winding and a step winding as well as a step switching device at a Y-point side thereof, includes, at a location between a point connecting the step winding to the high-voltage main winding and the Y-point of the transformer, a capacitor in series with a resistor is connected electrically parallel to respectively current-carrying steps of the step winding, the capacitor and the resistor being of such dimensions as to decrease resonance amplitudes of the connecting point to ground, the capacitor being constructed of spirally wound strip lines formed of a resistance alloy, the strip lines being also of such dimensions as to reduce resonance amplitudes of the connecting points.
    • 具有低压绕组,主高压绕组和阶梯绕组的大型电力变压器以及其Y点侧的台阶开关装置的电路装置包括在连接步骤 绕组到变压器的高压主绕组和Y点,与电阻器串联的电容器与级联绕组的分别电流传输步骤电并联连接,电容器和电阻器的尺寸等于 降低连接点对地的谐振幅度,电容器由由电阻合金形成的螺旋卷绕带状线构成,带状线也具有减小连接点的共振幅度的尺寸。
    • 2. 发明授权
    • Process for the preparation of fine droplet-reacted aluminosilicates of
the smallest particle size
    • 制备最小粒径的微滴反应铝硅酸盐的方法
    • US4275048A
    • 1981-06-23
    • US105255
    • 1979-12-19
    • Werner SteinPeter Christophliemk
    • Werner SteinPeter Christophliemk
    • C01B33/26C01B33/46C01B39/02C01B39/16C01B39/22C11D3/12C01B33/28
    • C11D3/128C01B33/26C01B33/2823C01B39/02Y02P20/129
    • A process for the preparation of fine droplet-reacted sodium aluminosilicates with the smallest particle sizes, containing less than 0.1% by weight of granules exceeding 25 .mu.m in size, said aluminosilicates being insoluble in water and containing some bound water, of the general formulaxNa.sub.2 O.Al.sub.2 O.sub.3.y SiO.sub.2in which x is a number from 0.2 to 1.5 and y is a number from 1.5 to 10, prepared by reacting aqueous sodium aluminate with aqueous sodium silicate in the presence of an excess of aqueous sodium hydroxide and subsequent filtration, comprising the step of separately passing a solution of sodium aluminate with a composition corresponding to the molar ratios:1 Al.sub.2 O.sub.3 :1 to 10 Na.sub.2 O:20 to 200 H.sub.2 Oand a solution of sodium silicate with a composition corresponding to the molar ratios:Na.sub.2 O:SiO.sub.2 from 0.1 to 10 andH.sub.2 O:SiO.sub.2 from 5 to 200to a spray head, spraying the two solutions into intimate contact, at a ratio by weight corresponding the desired total composition within the molar ratios of:1.5 to 15 Na.sub.2 O:1 Al.sub.2 O.sub.3 :1 to 15 SiO.sub.2 :50 to 400 H.sub.2 Oat a temperature of between 0.degree. and 103.degree. C., employing a spray system with at least one spray head with at least two liquid channels, each terminating in a jet spray nozzle, one for each solution, in such a manner that the two solutions meet only after leaving the spray head at a velocity sufficient to form a fine mist of droplets, whereby the two reactants undergo reaction while still in the fine mist of droplets stage, with the formation of an X-ray-amorphous sodium aluminosilicate gel, allowing the droplets to settle and recovering an aqueous suspension of said X-ray-amorphous sodium aluminosilicate in a form adapted for crystallization.
    • 制备具有最小粒径的微小液滴反应的硅铝酸钠的方法,其含有小于0.1重量%的超过25μm的颗粒,所述铝硅酸盐不溶于水并含有一些结合水,通式 xNa2O.Al2O3.y SiO2,其中x为0.2至1.5的数,y为1.5至10的数,通过在过量的氢氧化钠水溶液存在下反应,使铝酸钠与硅酸钠水溶液反应制备,随后过滤, 包括分别通过铝酸钠溶液,其组成对应于摩尔比:Al 2 O 3:1至10Na 2 O:20至200H 2 O和具有对应于Na 2 O:SiO 2摩尔比的组成的硅酸钠溶液 将0.1至10和H 2 O:SiO 2从5至200喷雾至喷雾头,将两种溶液以相对于所需总组成的重量比例紧密接触,以摩尔比o f:1.5至15 Na 2 O:1 Al 2 O 3:1至15SiO 2:50至400H 2 O,温度为0至103℃,采用具有至少一个具有至少两个液体通道的喷头的喷雾系统 终止于每个溶液中的一个喷射喷嘴,使得两个溶液仅在以足以形成细小雾滴的速度离开喷头之后才会聚,由此两种反应物在仍处于细微状态下进行反应 形成液滴阶段,形成X射线无定形硅铝酸钠凝胶,允许液滴以适于结晶的形式沉淀并回收所述X射线无定形硅铝酸钠的水性悬浮液。