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公开(公告)号：EP0124967A1
公开(公告)日：1984-11-14
申请号：EP84301501.7
申请日：1984-03-07
IPC分类号： G01R19/20
CPC分类号： G01R15/185 , G01R19/14
摘要： A D.C. current transformer (CT) (used to measure D.C.) comprising a common primary winding (B) and a pair of saturable magnetic cores (C1, C2) on which respective secondary windings (W1, W2) are wound and connected in opposite senses in series to a source of alternating e.m.f. (E1), is provided with phase-sensitive means (2) for determining the sense of the unknown D.C. (11) in the primary winding. The phase sensitive means periodically senses and integrates the voltage (V1 + V2) (whose waveform is the -45° to +45° portion of a sine wave) across at least one of the secondary windings. The sense of the integrated waveform depends on whether said voltage is initially positive or negative, and is determined by the sense of the unknown D.C. in the primary winding.
Preferably said voltage is sensed at each half cycle of said alternating e.m.f.-
公开(公告)号：EP0117103A2
公开(公告)日：1984-08-29
申请号：EP84300848.3
申请日：1984-02-10
发明人： Ward, Philip Alan
CPC分类号： H02P1/42
摘要： A self-starting single phase induction motor wherein the required quasi-second phase for starting is provided by controlling the phase of the voltage applied to one stator winding (91) of the motor relative to the phase of the voltage applied to another stator winding (87) of the motor by means of an electronic switching arrangement (93) and an associated control circuit (95).
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公开(公告)号：EP0018401B1
公开(公告)日：1983-07-27
申请号：EP79900824.8
申请日：1979-07-25
CPC分类号： G02B6/449 , Y10S57/902
摘要： A continuous elongate strength member for reinforcing an optical fibre cable consists of an assembly of aromatic polyamide filaments impregnated with a synthetic resin, in which the filaments are individually coated with the resin, and the filaments of at least an outer layer of the assembly are helically stranded. The impregnation is carried out by separating the filaments and immersing them in a low viscosity dispersion of the resin in a liquid medium; the filaments are then stranded, and the resin is cured. Apparatus for manufacturing the strength member and various forms of cable incorporating one or more strength members.
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公开(公告)号：EP0082160A1
公开(公告)日：1983-06-29
申请号：EP82901852.0
申请日：1982-06-25
CPC分类号： G05F1/44 , H02J3/1864 , Y02E40/12
摘要： Un compensateur réactif statique polyphasé comprend un réacteur saturé principal (SR1) connecté en série avec un certain nombre de réacteurs saturés plus petits (SR2-4) de tension nominale calibrée. Les réacteurs plus petits sont shuntés par les commutateurs à thyristors respectifs (TV2-TV4) de sorte que des combinaisons sélectionnées de réacteurs peuvent être obtenues pour assurer une commande de la tension totale de fonctionnement. La pente de la caractéristique générale peut être commandée par commutation au travers de combinaisons successives des réacteurs. Une amélioration ultérieure de la caractéristique générale peut être obtenue grâce à la commande de phase des commutateurs à thyristors (TV3) du réacteur le plus petit (SR4) ou, dans une forme alternative de l'invention, par l'utilisation d'un seul réacteur (SR1) possédant un enroulement primaire, un enroulement secondaire à maille fermée (19) et un réacteur auxiliaire commandé en phase (AR, ACR) représentant une charge sur l'enroulement à maille fermée. Les deux formes de la présente invention peuvent être combinées en un seul équipement.
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45.发明公开Manufacture of cables by hydrostatic extrusion 失效Kabelherstellung durch hydrostatisches Extrudieren。
公开(公告)号：EP0535835A1
公开(公告)日：1993-04-07
申请号：EP92308547.6
申请日：1992-09-18
CPC分类号： H01B13/004 , B21C23/007
摘要： A cable is formed by extruding an extrusible sheath through a die by applying pressure to a non-compressible fluid surrounding the sheath, the sheath having held within it at least one extrusible conductor, spaced from the sheath by pressure-transmitting material, such as compacted powdered insulating material.
摘要翻译： 通过将压力施加到围绕护套的不可压缩流体上，通过将模压件挤压通过模头而形成电缆，护套在其内保持有至少一个可压缩导体，该压缩导体通过压力传递材料例如压实 绝缘材料粉末。
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公开(公告)号：EP0420479A3
公开(公告)日：1992-06-17
申请号：EP90310222.6
申请日：1990-09-19
发明人： Murphy, Richard John
IPC分类号： H01B13/32
CPC分类号： H01B13/322
摘要： A method of protecting a bare overhead conductor wherein a grease composition containing a plastics agent cross-linkable under the influence of ultra-violet radiation is applied to the conductor during its fabrication. The conductor when secured in place overhead is exposed to the ultra-violet radiation present in sunlight which causes cross-linking of the plastics agent present at the surface of the grease composition exposed to the sunlight, and thereby hardening of the grease composition at this surface. Such hardening prevents denudation of the conductor of the grease composition.
摘要翻译： 一种保护裸露架空导体的方法，其中含有在紫外辐射影响下可交联的塑料剂的润滑脂组合物在其制造过程中被施加到导体上。 固定在顶部的导体暴露于阳光下存在的紫外线辐射，导致存在于暴露于阳光下的润滑脂组合物表面的塑料剂的交联，从而在该表面上硬化润滑脂组合物 。 这种硬化防止润滑脂组合物的导体剥离。
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公开(公告)号：EP0420479A2
公开(公告)日：1991-04-03
申请号：EP90310222.6
申请日：1990-09-19
发明人： Murphy, Richard John
IPC分类号： H01B13/32
CPC分类号： H01B13/322
摘要： A method of protecting a bare overhead conductor wherein a grease composition containing a plastics agent cross-linkable under the influence of ultra-violet radiation is applied to the conductor during its fabrication. The conductor when secured in place overhead is exposed to the ultra-violet radiation present in sunlight which causes cross-linking of the plastics agent present at the surface of the grease composition exposed to the sunlight, and thereby hardening of the grease composition at this surface. Such hardening prevents denudation of the conductor of the grease composition.
摘要翻译： 一种保护裸露架空导体的方法，其中含有在紫外辐射影响下可交联的塑料剂的润滑脂组合物在其制造过程中被施加到导体上。 固定在顶部的导体暴露于阳光下存在的紫外线辐射，导致存在于暴露于阳光下的润滑脂组合物表面的塑料剂的交联，从而在该表面上硬化润滑脂组合物 。 这种硬化防止润滑脂组合物的导体剥离。
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公开(公告)号：EP0413602A2
公开(公告)日：1991-02-20
申请号：EP90309059.5
申请日：1990-08-17
CPC分类号： H01B13/004 , B23K9/0253 , H01B13/262
摘要： Apparatus and a process for manufacturing mineral-insulated cable (10) has seam-welding heads for welding a travelling strip simultaneously at two or more spaced points (F1, F2, F3) to form a tubular sheath for the cable.
In another aspect of the invention, in start-up or shut-down of a process for manufacturing mineral-insulated cable wherein a strip is seam-welded to form a tubular sheath for the cable (10), the same quality of seam-weld (100) is ensured as for the steady state condition by controlling the arc current and voltage as a function of the speed of conveyance of the strip.摘要翻译： 用于制造矿物绝缘电缆（10）的装置和方法具有用于在两个或更多个间隔点（F1，F2，F3）处同时焊接移动带的缝焊头，以形成用于电缆的管状护套。 在本发明的另一方面，在用于制造矿物绝缘电缆的方法的启动或关闭中，其中将条缝合焊接以形成用于电缆（10）的管状护套，相同质量的缝焊 （100）通过控制电弧电流和电压作为条的传送速度的函数来确保稳定状态条件。
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公开(公告)号：EP0211031B1
公开(公告)日：1989-12-06
申请号：EP86900816.9
申请日：1986-01-27
CPC分类号： H01H33/6661 , B22F1/0003 , C22C1/0416 , H01H3/42 , H02B13/075
摘要： An interrupter/isolator assembly having a conducting member (16) connected to one contact of a vacuum switch (V) and movable to engage either an earth contact (19) or an isolator contact (7) incorporates a cam member (17) for operating the conducting member (16) and actuating the switch contacts, there being a degree of lost motion between the cam member (17) and conducting member (16) such that making or breaking of a current path between the second contact and either the isolator (7) or earth contact (9) occurs within the vacuum switch (V) and not at the isolator (7) or earth contact (9).
摘要翻译： 具有连接到真空开关（V）的一个触点并且可移动以接合接地触点（19）或隔离触点（7）的导电构件（16）的断续器/隔离器组件包括用于操作的凸轮构件（17） 所述导电构件（16）和所述开关触头的致动，所述凸轮构件（17）与所述导电构件（16）之间存在一定程度的空转运动，使得在所述第二触头与所述隔离器之间形成或断开电流路径 7）或接地触点（9）发生在真空开关（V）内而不是隔离开关（7）或接地触点（9）处。
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公开(公告)号：EP0283132A3
公开(公告)日：1989-10-18
申请号：EP88301290.8
申请日：1988-02-17
摘要： A mineral insulated electric cable which incorporates a hydrophobic substance has, within the sheath, an additive material. This material may either 1) release carbon dioxide on reaching a predetermined temperature or 2) react with the hydrophobic material (or the degradation products thereof) or 3) react to produce oxygen. The hydrophobic material is commonly a silicone.
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