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81. 发明专利

JPS58112309A TRANSFORMER 失效
公开(公告)号：JPS58112309A
公开(公告)日：1983-07-04
申请号：JP21237381
申请日：1981-12-25
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： IKEDA MASAMI
IPC分类号： H01F27/00 , H01F27/10 , H01F27/20
摘要： PURPOSE:To detect overload state and mixing of insulation gas in a cooling medium automatically, by a method wherein a bubble detector is installed in a pipeline of a cooling medium circulation circuit. CONSTITUTION:A bubble detector 16 is installed between a cooling duct 9 in a pipeline of a cooling medium circulation circuit and an external cooling device 10, and cooling medium after cooling windings 4, 5 at the cooling duct 9 passes through return pipeline part of the cooling duct 9. The bubble detector 16 detects existence of a bubble contained in the cooling medium liquid flowing in the pipeline of the cooling medium circulation circuit. The detector 16 generates detection signal when the bubble contained in the cooling medium attains a predetermined amount, thereby overload of a transformer in operating state is detected and supervised automatically.

82. 发明专利

JPS58108726A TRANSFORMER 失效
公开(公告)号：JPS58108726A
公开(公告)日：1983-06-28
申请号：JP20831181
申请日：1981-12-23
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： TERANISHI TSUNEJI , IKEDA MASAMI , ISAKA SUSUMU
IPC分类号： H01F27/28 , H01F27/10 , H01F27/18 , H01F27/34
摘要： PURPOSE:To prevent over heat and to offer a separate-type transformer effectively applied to a large-capacity transformer by a method wherein an increase in current density by winding leakage magnetic flux at both end sections of the metal sheets of foil windings is controlled. CONSTITUTION:A low-voltage winding 4 and a high-voltage winding 5 are composed of foil windings wound by superposing metal sheets 7 and insulating sheets 8. An insulating cylinder 3 and an insulating barrier 6 are provided between the low-voltage winding 4 and an iron core 2, and at the gap between windings 4, 5 respectively. Cooling ducts 9 are positioned in concentric circle shape in the inside of each winding 4, 5 at predetermined intervals. In the low- voltage winding 4 and the high-voltage winding 5 contained the cooling ducts 9 composed in this way, leakage magnetic flux in the windings is absorbed to silicon steel plates 15, 15 forming the cooling ducts 9, and eddy current by leakage magnetic flux crossing the silicon steel plates 15, 15 is hardly occurs at both the end sections of the metal sheets 7 to generate no local over heat.

83. 发明专利

JPS58107614A TRANSFORMER 失效
公开(公告)号：JPS58107614A
公开(公告)日：1983-06-27
申请号：JP20667681
申请日：1981-12-21
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： TERANISHI TSUNEJI , IKEDA MASAMI
IPC分类号： H01F27/28 , H01F27/10 , H01F27/18
摘要： PURPOSE:To elongate the distance between guide pipes and enhance dielectric strength at the end of cooling duct by forming ellipsoid or flat cross-section of guide pipe provided at the end of cooling duct and by making parallel the longitudinal direction of cross-section to each other. CONSTITUTION:A guide pipe 15 having the ellipse or flat cross-section is integratingly provided along the circumferencial direction at the end of cooling ducts 9 provided to high voltage windings 5. The pipe 15 is set so that the longitudinal direction of cross-section becomes parallel to each other. Thereby, the insulating distance D of surface of the adjacent pipes 15 becomes larger than that in case the pipe 15 has the circular cross section of which area is equal to an ellipse. Therefore, dielectric strength of pipe 15, in other words, the end of duct 9 can be enhanced.

84. 发明专利

JPS5893204A TRANSFORMER 失效
公开(公告)号：JPS5893204A
公开(公告)日：1983-06-02
申请号：JP19218581
申请日：1981-11-30
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： HIDA TOSHIO
IPC分类号： H01F27/28 , H01F27/10 , H01F27/18
摘要： PURPOSE:To eliminate welded part from a cooling duct and to solve the problem of refrigerant leak through the welded part by a method wherein the cooling duct housed in windings is formed of a fine tube and arranged into a zigzag line. CONSTITUTION:A cooling duct 21 is so manufactured that a long fine tube 20 formed of metal or heat-resistant synthetic resin is arranged into a zigzag line extending in the vertical direction and then bent into the cylindrical form. One end of the fine tube 20 is extended downward to form a refrigerant inlet 22a, while the outer end thereof is extended upward to form a refrigerant outlet 22b. Both refrigerant inlet 22a and outlet 22b of thus arranged cooling duct 21 are connected to introducing pipes adapted to introduce the refrigerant. By so doing, the entire of cooling duct can be formed by the signal fine tube 20, eliminating a need of welding. Thus, it becomes possible to solve the problem of refrigerant leak due to occurrence of corrosion or cracks at the welded part.

85. 发明专利

JPS5891608A FOIL WINDING TRANSFORMER 失效
公开(公告)号：JPS5891608A
公开(公告)日：1983-05-31
申请号：JP18927881
申请日：1981-11-27
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： MURATA KEIJI , HASHIZUME KENICHI
IPC分类号： H01F27/18 , H01F27/10
摘要： PURPOSE:To simplify a coolant circulating circuit, and to unify streams in cooling ducts by a method wherein inlets and outlets for a coolant of the cooling ducts are coupled properly. CONSTITUTION:The coolant is made to flow in parallel or in series in the three cooling ducts by coupling the adjoining three cooling ducts 6 mutually with insulated pipes 20 for coupling, and by connecting the pipes thereof to a liquid collecting tube 10 using two insulated pipes 11. At this time, because the pipes 20 couple the adjoining ducts mutually, length of the pipes can get along with length passably shorter than the pipes 11 to connect the liquid collecting tube and the cooling ducts, and equipment is facilitated. Accordingly, because the number of the long pipes can be reduced, the circulating circuit can be simplified. Moreover, the streams in the cooling ducts can be unified, and local reduction of the cooling capacity can be prevented without increasing the number of the pipes.

86. 发明专利

JPS5889815A FOIL-WOUND TRANSFORMER 失效
公开(公告)号：JPS5889815A
公开(公告)日：1983-05-28
申请号：JP18784381
申请日：1981-11-25
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： HASHIZUME KENICHI
IPC分类号： H01F27/28 , H01F27/10
摘要： PURPOSE:To efficiently refrigerate a coil lead by a method wherein refrigerant ducts are provided at the innermost and outermost sides of each winding and the lead is accommodated in a gap between refrigerant ducts. CONSTITUTION:Refrigerant ducts 6 are provided at the innermost and outermost sides of coils 4, 5 and a lead 15 is accommodated in a gap 16 between the refrigerant ducts 6. The lead 15 being in the neighborhood of the refrigerant ducts 6 and filling up the gap 16, the next turn of the foiled conductor can be installed tight on the previous turn without a gap between the two, which results in an efficient refrigeration for the lead 15.

87. 发明专利

JPS5889814A FOIL-WOUND TRANSFORMER 失效
公开(公告)号：JPS5889814A
公开(公告)日：1983-05-28
申请号：JP18784281
申请日：1981-11-25
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： KOYAMA YOSHIO
IPC分类号： H01F27/28 , H01F27/10 , H01F27/18
摘要： PURPOSE:To enhance refrigerating efficiency by a method wherein a coil is kept from local high temperatures due to a porous board provided at a parallel flow passage inlet in a refrigerant duct. CONSTITUTION:The subject is so constructed that a porous board 23 is provided at the parallel flow passage inlet 22 of a refrigerant duct 21 that a uniform flow is ensured of the refrigerant, supplied by a liquid introducing nozzle into a header 9, running in a parallel flow passage 10. This in turn ensures a uniform refrigerating capability for the refrigerant duct 21. By this, the coil is prevented from a local temperature rise. Such an effect is attained by merely installing a porous board at the parallel flow inlet of a refrigerant duct not subject to the refrigerant duct type or dimensions.

88. 发明专利

JPS5875810A LEAF WOUND TRANSFORMER 失效
公开(公告)号：JPS5875810A
公开(公告)日：1983-05-07
申请号：JP17300181
申请日：1981-10-30
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： KADOMA SHIGEKI
IPC分类号： H01F27/10 , H01F27/20
摘要： PURPOSE:To equalize temperature distribution of a winding body, by a method wherein a leaf conductor and an insulation sheet are overlaid and wound to form a winding body, and a cooling duct and a heat pipe are installed within the winding body. CONSTITUTION:A leaf conductor 2 and an insulation sheet 3 are overlaid and wound thereby winding bodies of low tension side and high tension side are formed. An annular cooling duct 6 is installed within the winding bodies. The cooling duct contains a thin gap and is filled with a cooling medium 10. The cooling medium 10 is circulated from upper side through the cooling duct by means of a pump 7. Heat in the leaf winding bodies is eliminated by the cooling medium 10. The cooling medium subjected to the heat is cooled in a heat exchanger 8 by cooling water and then fed into the winding body by the pump 7. A heat pipe 18 is disposed at intermediate portion between the opposed cooling ducts for eliminating the heat from high temperature portion at lower side and radiates the heat to low temperature portion at upper side.

89. 发明专利

JPS5874023A TRANSFORMER 失效
公开(公告)号：JPS5874023A
公开(公告)日：1983-05-04
申请号：JP17227181
申请日：1981-10-28
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： IKEDA MASAMI
IPC分类号： H01F27/28 , H01F27/10 , H01F27/18
摘要： PURPOSE:To prevent deterioration of cooling capability due to the leakage of refrigerant by once storing refrigerant leaked from components of a refrigerant circulation circuit within a refrigerant pot and by returning this refrigerant to the refrigerant circulation circuit through a refrigerant feedback pipe. CONSTITUTION:A refrigerant A leaking from components of a refrigerant circulation circuit falls along coils 4, 5 etc. and enters the refrigerant pot 15 provided at the center of bottom part 1a of tank 1. When such refrigerant A reaches the predetermined level, such level is detected by a level detector 17. Then, such refrigerant A is transferred to a refrigerant tank 11 through a feedback pipe 16 by means of a pump 18 which is operated by a signal sent from the detector 17. The refrigerant A being transferred is then sent again to the cooling duct 9 together with other refrigerant A by the pump 12. Thereby, even if the refrigerant A leaks, the cooling capability is not deteriorated and the necessary cooling capability can alwasy be maintained.

90. 发明专利

JPS57118613A Refrigerant cooling equipment for electric machine coil 失效
标题翻译：电机线圈冷冻冷却设备
公开(公告)号：JPS57118613A
公开(公告)日：1982-07-23
申请号：JP568581
申请日：1981-01-16
申请人： Kansai Electric Power Co Inc:The , Nissin Electric Co Ltd , Sumitomo Electric Ind Ltd
发明人： MATSUMURA SUSUMU , KUBO HIROSHI , OSHIMIBE MITSUMASA , EJIRI HIROMICHI , KUWATA MINORU
IPC分类号： H01F27/28 , H01F27/10 , H01F27/12
CPC分类号： H01F27/10
摘要： PURPOSE:To cool hollow conductors efficiently by a method wherein two adjacent layers of hollow conductor disc-type coils make one pair and one or a plurality of pairs compose one refrigerant circulation path and the outermost layer of each pair is used as a supplying end and a recovery end of the refrigerant. CONSTITUTION:A hollow conductor is wound in layers along the radius direction to form one unit of disc-type 10 or 11. These units are arranged in plural layers and two adjacent disc-type coils 10 and 11 make ne pair. One of the hollow conductors 10a and 11a which occupy the outermost layers of both unit disc-type coils 10 and 11 respectively is used as a supplying end and another is used as a recovery end of the refrigerant. The refrigrant supplied from the hollow conductor 10a circulates in the disc-type coi 10 toward the hollow conductor 10b which occupies the innermost layer to reach the hollow conductor 11b which occupies the innermost layer of the disc-type coil 11 and is recovered from the hollow conductor 11a. With above cnstitution, the circulation path can be shortened and the hollow conductors can be cooled efficiently.
摘要翻译：目的：通过一种方法来冷却空心导体，其中两个相邻的中空导体盘型线圈形成一对，一对或多对构成一个制冷剂循环路径，并且每对的最外层用作供应端，制冷剂的回收端。构成：空心导体沿着半径方向缠绕成层状，形成一个圆盘型10或11的单元。这些单元布置成多层，两个相邻的盘状线圈10和11形成一对。分别占用两个单元盘型线圈10和11的最外层的空心导体10a和11a中的一个用作供给端，另一个用作制冷剂的回收端。从中空导体10a供给的反射器在圆盘状coi10中朝着占据最内层的中空导体10b流到中空导体11b，中空导体11b占据盘状线圈11的最内层，并从中空部导体11a。通过上述设计，可以缩短循环路径，有效地冷却中空导体。

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