公开(公告)号：US3824355A

公开(公告)日：1974-07-16

申请号：US36709873

申请日：1973-06-05

Applicant: ASEA AB

Inventor： NORMAN S ,  SYREN J ,  ZETTERLUND U

IPC: H01H1/42 ,  H01H15/08 ,  H01H15/06

CPC classification number: H01H15/08 ,  H01H1/42 ,  H01H9/0027

Abstract: A de-energized tap changer for transformers comprises a frame of insulating material, a slide which carries movable contacts, the slide being displaceable in the frame, and a drive for the slide. The frame of the tap changer is manufactured in one piece and consists of a terminal bar with attachment means for connections from the transformer windings, a carrier member carrying the drive, and cross-bars connecting the terminal bar and the carrier member. The movable slide is displaceable in grooves in the cross-bars and can be inserted in the grooves only when situated outside its ordinary working area.

Abstract translation: 用于变压器的断电分接开关包括绝缘材料框架，承载可移动触点的滑块，滑架可移动到框架中，以及用于滑块的驱动器。 分接开关的框架制造成一体，由具有用于从变压器绕组连接的附接装置的端子条，承载驱动器的承载构件和连接端子条和承载构件的横杆组成。 可移动的滑块可以在横杆中的槽中移动，并且仅当位于其普通工作区域的外部时才能插入槽中。

公开(公告)号：US3821608A

公开(公告)日：1974-06-28

申请号：US34875173

申请日：1973-04-06

Applicant: ASEA AB

Inventor： JOHANSSON A ,  LYCKSTEDT B

IPC: H01T4/20 ,  H02H1/04

CPC classification number: H01T4/20

Abstract: A surge diverter is mounted in an inner casing of electrically insulating material which is enclosed in an outer housing of electrically conducting material which is connected to earth. In the space between the inner casing and the housing a number of grading rings in the form of toroid rings are fastened to the inner casing at a distance from it. The grading rings are arranged at a distance from each other which increases counting from the top of the diverter.

公开(公告)号：US3798344A

公开(公告)日：1974-03-19

申请号：US3798344D

申请日：1973-06-21

Applicant: ASEA AB

Inventor： ANDERSSON C

IPC: H05B6/16 ,  F27D11/06 ,  H05B6/20 ,  H05B5/12

CPC classification number: H05B6/20

Abstract: A channel type induction furnace with a furnace body having a hearth and an inductor arranged below the hearth has melt channels opening into the hearth below the normal surface of the bath. The melt channels are vertically directed. At least two disc cores of substantially greater height than thickness are provided with their windings located substantially parallel to the plane of the channel and positioned on both sides of all the channels except the outermost one.

Abstract translation: 具有炉底和布置在炉膛下方的电感器的通道式感应炉具有通向浴槽正常表面下方的炉底的熔体通道。 熔体通道垂直定向。 具有比厚度大得多的高度的至少两个盘芯设置有它们的绕组，其基本上平行于通道的平面定位，并且位于除了最外面的通道之外的所有通道的两侧。

公开(公告)号：US3797314A

公开(公告)日：1974-03-19

申请号：US3797314D

申请日：1972-07-10

Applicant: ASEA AB

Inventor： LAMPE W ,  SPICAR E ,  PERSSON B

IPC: G01K1/14 ,  G01K5/00 ,  H01F27/40 ,  G01K13/02 ,  G01K5/32 ,  H01F27/12

CPC classification number: G01K5/00 ,  G01K1/14 ,  H01F27/402 ,  H01F2027/404 ,  H01F2027/406

Abstract: For determining the highest oil temperature in a transformer, a temperature-sensitive transducer in the form of a hollow closed body is arranged adjacent the point in the upper part of the winding where the oil temperature is assumed to be highest and is connected by a conducting tube to a measuring device located outside the transformer. The transducer and the connecting tube are filled with a liquid having a higher coefficient of expansion than the material of the transducer and a boiling point which is higher than the highest permissible oil temperature. The tube has a volume which is small in relation to the volume of the transducer.

Abstract translation: 为了确定变压器中最高的油温，以中空封闭体的形式的温度敏感传感器布置在绕组上部的点处，其中假定油温度最高并通过传导 管到位于变压器外部的测量装置。 换能器和连接管填充有比换能器材料更高的膨胀系数的液体，并且沸点高于最高允许的油温。 管的体积相对于换能器的体积小。

公开(公告)号：US3780554A

公开(公告)日：1973-12-25

申请号：US3780554D

申请日：1972-02-07

Applicant: ASEA AB

Inventor： NILSSON J

IPC: B21C23/22 ,  B21C25/02

CPC classification number: B21C23/22 ,  B21C25/02

Abstract: A rod or wire having an aluminum or aluminum alloy core and a copper or copper alloy casing is produced by hydrostatic extrusion of a compound billet through a die having a conical inlet with a cone angle of between 93* and 115*.

公开(公告)号：US3779863A

公开(公告)日：1973-12-18

申请号：US3779863D

申请日：1970-02-12

Applicant: ASEA AB

Inventor： WAHREN D

IPC: D21F1/06 ,  D21F1/08

CPC classification number: D21F1/06

Abstract: Stock feed to a paper machine headbox is controlled by a stock (fan) pump which is controlled to run at variable speeds, the input of stock to the pump originating from a thick stock containing conduit and a conduit containing mixing water. The speed of the pump motor is controlled by a signal from a control element which is responsive to measurements of the stock level or pressure within the headbox and an adjusted value of the forming wire speed. In addition, a thick stock pump located in the thick stock conduit is adjusted to run at a variable speed by a control device which is responsive to signals indicating the pressure drop across an orifice in the thick stock conduit and a signal based on the web speed. Alternatively, the thick stock pump may run at a constant speed and the control device can be used to control an orifice opening or throttling device located in the thick stock conduit between the pressure-drop determining orifice and the stock (fan) pump.

Abstract translation: 供纸到造纸机流浆箱的库存料由控制为以可变速度运行的库存（风扇）泵控制，库存输送到源自含有粗料的管道的泵和含有混合水的管道。 泵马达的速度由来自控制元件的信号控制，控制元件响应于流浆箱内的库存水平或压力的测量以及成形线速度的调整值。 另外，通过控制装置调节位于粗库存管道中的厚库存泵，该控制装置响应于指示穿过厚库存管道中的孔口的压降的信号，以及基于卷筒纸速度的信号 。 或者，厚库存泵可以以恒定速度运行，并且控制装置可以用于控制位于压力下降确定孔口和库存（风扇）泵之间的粗料管道中的孔口开口或节流装置。

公开(公告)号：US3778284A

公开(公告)日：1973-12-11

申请号：US3778284D

申请日：1971-12-16

Applicant: ASEA AB

Inventor： AKERBLOM C

IPC: C09D105/00 ,  C09J105/00 ,  H01B3/32 ,  C08B25/00

CPC classification number: C09J105/00 ,  C09D105/00 ,  H01B3/32 ,  Y10T428/265 ,  Y10T428/31714

Abstract: ELECTRICAL STEEL SHEET IS VARNISHED WITH A VARNISH PRODUCED BY OXIDIZING A CARBOHYDRATE SO THAT CARBOXYL GROUPS ARE FORMED IN THE MOLECULE AND ADDING FURFURAL TO THE OXIDIZED CARBOHYDRATE.

公开(公告)号：US3776476A

公开(公告)日：1973-12-04

申请号：US3776476D

申请日：1971-09-09

Applicant: ASEA AB

Inventor： SANDBLOM H ,  TOROK V

IPC: D21B1/20 ,  B24B49/16 ,  D21B1/06 ,  H02P29/00 ,  B02C25/00

CPC classification number: D21B1/063 ,  B24B49/16 ,  H02P29/40

Abstract: Grinding mills for wood wherein the wood is fed to a grinding stone require regulation to produce pulp of good quality. A signal measuring the friction coefficient between the wood and grinding stone is derived and this signal controls the wood feeding to keep the friction coefficient constant.

Abstract translation: 用于木材的研磨机将木材送入磨石需要调节以产生质量好的纸浆。 得出测量木材与研磨石之间的摩擦系数的信号，该信号控制木材进给以保持摩擦系数恒定。

公开(公告)号：US3772009A

公开(公告)日：1973-11-13

申请号：US3772009D

申请日：1972-10-18

Applicant: ASEA AB

Inventor： ISAKSSON S

IPC: B22F3/14 ,  B22F3/15 ,  B30B11/00 ,  C22C33/02 ,  F27B17/00 ,  B22F3/16

CPC classification number: B30B11/002 ,  B22F3/15 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  B22F3/16 ,  C22C33/02 ,  B22F3/1208 ,  B22F2201/20

Abstract: In a procedure in which a body formed of an iron-based alloy is manufactured from powder by isostatic compression, the powder is placed in a flexible container and subjected to isostatic pressure and heat. The isostatic hot pressing is carried out at two temperatures, at one of which the iron-based alloy is at least 25 percent in Alpha -phase and at the other of which the iron-based alloy is in gamma -phase. If the treatment at the temperature for gamma -phase is carried out first, the body is cooled below the temperature level at which it is at least 25 percent in Alpha -phase to prevent retention of the gamma phase and then raised to the temperature at which it is at least 25 percent in Alpha -phase.

Abstract translation: 在由等离子体压缩的粉末制造由铁基合金形成的本体的过程中，将粉末放置在柔性容器中并进行等静压和加热。 等温热压在两个温度下进行，其中一个铁基合金在α-相中至少为25％，另一个铁基合金处于γ相。 如果首先进行γ相温度的处理，则将体冷却至低于α相的至少25％的温度水平，以防止γ相的滞留，然后升高至 在alpha相中至少为25％。

公开(公告)号：US3768001A

公开(公告)日：1973-10-23

申请号：US3768001D

申请日：1972-01-20

Applicant: ASEA AB

Inventor： THORBORG K

IPC: H02J9/06 ,  H02M7/515 ,  H02M7/757 ,  H02M7/48

CPC classification number: H02M7/515 ,  H02J9/062 ,  H02M7/7575 ,  Y02E60/60

Abstract: An oscillator-controlled, self-commutated inverter connection for generating a single- or multi-phase alternating voltage and transmitting power from a direct voltage source to an alternating voltage consumer includes two inverter units, each including capacitor bank connected to the AC terminals of the inverter unit and a converter of the line-commutated type. The AC outputs of the converter are connected to the AC terminals of the inverter unit and the DC outputs are connected to the DC source. Reactor connections connect the DC outputs of the converter to the poles of the DC source. A second converter of the line-commutated type is connected by its DC outputs to the DC source. The two converters are anti-parallel connected to the DC source.

Abstract translation: 用于产生单相或多相交流电压并且将功率从直流电压源传输到交流电压消耗器的振荡器控制的自换向逆变器连接器包括两个逆变器单元，每个逆变器单元包括连接到 逆变器单元和线路换向型转换器。 变频器的交流输出连接到变频器单元的交流端子，直流输出连接到直流电源。 反应器连接将转换器的直流输出连接到直流电源极。 线路换向型的第二个转换器通过其直流输出连接到直流电源。 两个转换器反向并联连接到直流电源。