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1. 发明专利

JPS58220415A Transformer for gas insulation instrument 失效
标题翻译：气体绝缘仪表用变压器
公开(公告)号：JPS58220415A
公开(公告)日：1983-12-22
申请号：JP10304782
申请日：1982-06-17
申请人： Toshiba Corp
发明人： MIZUTANI MASAAKI
IPC分类号： H01F38/24 , H01F38/38
CPC分类号： H01F38/38
摘要： PURPOSE:To make it easy to inspect gas insulated closed switches by connecting one end of a high-voltage coil that is wound on an iron coil and grounding the other end and effecting the grounding through a cable with high insulation resistance and a switch that is separately provided from a high-voltage conductor. CONSTITUTION:A high-voltage coil 105 is put in a case 103 that constitutes a high-voltage apparatus 102 for a gas insulation instrument, and one end of the coil 105 is connected to a high-voltage conductor 101 in a gas insulation closed switch that is covered with an outer cover. Next, the other end of the coil 105 is grounded in such a way that a high-voltage grounding bushing 104 is pierced through the bottom plate of each case 103, and a cable 106 with high insulation resistance is connected to the bushing, and they are surrounded with a wiring pipe 107, and in the end of the pipe 107 where those wires gather a plurality of switches 109 are placed, and an insulation resistance measurement box 108 that is grounded is provided. When, with this construction, one of transformers 102 is to be inspected, the corresponding switch 109 is operated during that time.
摘要翻译：目的：通过连接缠绕在铁线圈上的高压线圈的一端并将另一端接地并通过绝缘电阻高的电缆进行接地来实现气体绝缘闭合开关的检查，分别由高压导体提供。构成：将高压线圈105放置在构成气体绝缘器具的高电压装置102的壳体103中，线圈105的一端与气体绝缘用开关中的高压导体101连接被外盖覆盖。接下来，线圈105的另一端以高电压接地衬套104穿过每个壳体103的底板的方式接地，并且具有高绝缘电阻的电缆106连接到衬套，并且它们被布线管107包围，并且在布置有多个开关109的管107的末端，并且设置接地的绝缘电阻测量盒108。在这种结构中，当要检查变压器102中的一个时，相应的开关109在此期间被操作。

2. 发明专利

JPH0581950A GAS INSULATED CAPACITOR-TYPE BUSHING 失效
公开(公告)号：JPH0581950A
公开(公告)日：1993-04-02
申请号：JP24082591
申请日：1991-09-20
申请人： TOSHIBA CORP
发明人： MIZUTANI MASAAKI
IPC分类号： H01B17/28
摘要： PURPOSE:To remove water in the inside of a layer and prevent the slippage of a layer and improve the reliability while bearing the mechanical force by using a plastic film in which a plurality of recessed grooves and projected mountain parts are formed as a thin insulating material to compose an insulating layer. CONSTITUTION:A plurality of stripes of recessed grooves with 5mum or more depth and 0.5mm or more width are formed on one side of a plastic film 12 on the external circumference of a center conductor 1 and projected mountain parts with the same size are formed in the same sites on the other side. The film 12 is so wound as to interlock the recessed grooves and the projected mountain parts while making the grooves and the projected mountain parts in harmony with the longitudinal direction of the conductor 1 and by inserting an equalizer electrode 3 in every prescribed size, a capacitor core 4 is manufactured. Consequently, even if the winding length becomes long due to that the bushing is made to have the high voltage and large size, drying and vacuum impregnation can be carried out completely within a short time, so that it is manufactured easily. Further, it can has stable function against mechanical force, so that it becomes economical and has high quality and improved reliability.

3. 发明专利

JPS61135107A Gas insulated transformer for instrument 失效
标题翻译：气体绝缘变压器用于仪器
公开(公告)号：JPS61135107A
公开(公告)日：1986-06-23
申请号：JP25792384
申请日：1984-12-06
申请人： Toshiba Corp
发明人： MIZUTANI MASAAKI
IPC分类号： H01F38/24 , H01F27/36
CPC分类号： H01F27/362
摘要： PURPOSE:To make shorten the insulation distance to the optimum value and to the transformer small and light by constituting the high tension shield composed of four parts by a methode wherein the high tension shield is divided into two parts in the least radius direction and is furthermore divided into two parts in the peripheral direction which are assembled to make a high tension shield. CONSTITUTION:The high tension shield 101 has a cross section of bag form with at least three kinds of curvature radius. The first part has the radius r1 at least necessary to decrease the electric stress along the surface of the high tension coil 4. The second part has the radius r2 determined by the insulating distance (a) from the grounding shield 6. The third part has the radius r3 determined by the insulating distance (c) from the tank 8. These are divided into two parts in the radius direction, and furthermore the peripheral surfaces are divided at the contact point of the r2 part and r3 part, resulting in four parts. As the cross section of the high tension shield has a bag form, such curvature radius as making the insulating distance from the grounding part shortest can be arbitrarily selected. The grounding part confronts with the high tension shield. The size of the fixing washer of the high tension shield can also be freely selected within the size of the cross section of bag form. Thus the high tension shield is made small and the insulation distance is shortened to the optimum value.
摘要翻译：目的：通过将高压屏蔽件在最小半径方向上分成两部分的方法，通过构成由四部分组成的高压屏蔽件来缩短绝缘距离达到最佳值的变压器和变压器小而轻沿圆周方向分为两部分组装成高张力屏蔽。构成：高张力护罩101具有至少三种曲率半径的袋形截面。第一部分具有至少必须减小沿着高压线圈4的表面的电应力的半径r1。第二部分具有由距离接地屏蔽6的绝缘距离（a）确定的半径r2。第三部分具有半径r3由罐8的绝缘距离（c）决定。这些半径r3在半径方向上分为两部分，此外，在r2部分和r3部分的接触点处分割圆周面，得到四部分。由于高张力防护罩的横截面为袋形，所以可以任意地选择使离开接地部的绝缘距离最短的曲率半径。接地部分面对高压屏蔽。高压屏蔽固定垫圈的尺寸也可以在袋子形状的横截面尺寸内自由选择。因此，高张力屏蔽变小，绝缘距离缩短到最佳值。

4. 发明专利

JPH07161553A GAS INSULATED POTENTIAL TRANSFORMER 失效
公开(公告)号：JPH07161553A
公开(公告)日：1995-06-23
申请号：JP31029493
申请日：1993-12-10
申请人： TOSHIBA CORP
发明人： MIZUTANI MASAAKI
IPC分类号： H01F38/24
摘要： PURPOSE:To provide a gas-insulated potential transformer, in which wound cores for a large number of high-voltage windings can be set by the main shaft of a winding machine and the rotational displacement of the high-voltage windings can be prevented and which has high efficiency and high reliability. CONSTITUTION:A high-voltage winding 3 wound around a wound core 20 is inserted into one leg of a core 1, and a high-voltage shield 4 is mounted on the outer circumference of the high-voltage winding 3. The four corners of the core 1 are held firmly by clamps 8 for increasing the mechanical strength of the voltage transforming section. A projection 21 formed at one end of the core is also held firmly by the clamps 8 at the same time, a guide 16 is inserted into a recessed notch 22 formed at the other end, and the guide 16 is retained strongly by clamps 8, thus securely maintaining the wound core 20 by the clamps 8.

5. 发明专利

JPS639912A GAS-INSULATED INSTRUMENT TRANSFORMER 失效
公开(公告)号：JPS639912A
公开(公告)日：1988-01-16
申请号：JP15351886
申请日：1986-06-30
申请人： TOSHIBA CORP
发明人： MIZUTANI MASAAKI
IPC分类号： H01F27/22
摘要： PURPOSE:To facilitate making outside diagnosis of whether an external force which exceeds the allowable external force of a high voltage coil is applied or not by a method wherein an impact force controller in which a mass system is made to oscillate by the external force applied to the high voltage coil is provided. CONSTITUTION:An impact force controller which is constituted by an oscillation system element 15 composed of a mass 13 and a plurality of springs 14 supporting the mass 13 and a sensor 16 which senses an external force which exceeds the allowable external force of a high voltage coil 3 by the amplitude of the mass 13 is attached to the outside of a tank 8 which houses and encloses a voltage transformer. When an external force is applied to the weakest direction of the high voltage coil 3, the horizontal oscillation of the oscillation system element 15 of the impact force controller is induced and the mass 13 starts reciprocal movement along the direction of the external force application. Is the amplitude of the mass 13 is proportional to the external force, the sensor 16 is provided at the position of the maximum amplitude when the external force corresponding to the allowable value of the high voltage coil 3 and, if the mass 13 touches the sensor 16, it is judged that the external force exceeds the allowable external force of the high voltage coil 3. With this constitution, reliability of operation can be improved.

6. 发明专利

JPS61201410A GAS INSULATED VOLTAGE TRANSFORMER 失效
公开(公告)号：JPS61201410A
公开(公告)日：1986-09-06
申请号：JP4235785
申请日：1985-03-04
申请人： TOSHIBA CORP
发明人： MIZUTANI MASAAKI
IPC分类号： H01F38/24 , H01F27/36 , H01F38/26
摘要： PURPOSE:To eliminate a fine gas gap and reduce an electrical stress at a flat part of a high voltage shielding by a method wherein a metal tape is applied around an insulation applied to a high voltage coil and the high voltage coil insulation is separated from the high voltage shielding by a predetermined distance. CONSTITUTION:Metal tapes 10, which have breaks so as not to make one complete turn to the direction of interlinkage with a core, are inserted between a high voltage shielding 4 and both ends of the outer circumference of an insulation of a high voltage coil 3 in order to avoid a fine gap between the high voltage coil 3 and the high voltage shielding 4. A crossing point P between the insulation of the high voltage coil 3 and a vertical line O-A drawn from a center O of bending radius (r) of both ends of the high voltage shielding 4 is positioned in such a manner that, if a winding thickness (build) of the high voltage coil 3 is H, a distance H1 from the high voltage shielding 4 to the point P is kept to be not less than 0.2H. With this constitution, the electrical stress at the upper part of the high voltage coil 3. where the electrical stress is the highest, or at the flat part of the high voltage coil 3 is relieved so that the size and the weight of a gas insulated VT can be reduced.

7. 发明专利

JPH0581954A MANUFACTURE OF GAS INSULATION CAPACITOR TYPE BUSHING 失效
公开(公告)号：JPH0581954A
公开(公告)日：1993-04-02
申请号：JP24082291
申请日：1991-09-20
申请人： TOSHIBA CORP
发明人： MIZUTANI MASAAKI
IPC分类号： H01B17/28 , H01B19/00
摘要： PURPOSE:To surely remove molsture from the inner portion of an insulating layer so as to improve the long-term insulating reliability of a gas insulation capacitor type bushing by winding a plastic film forming the insulating layer under such environment that humidity and temperature are sufficiently controlled. CONSTITUTION:When a plastic film 12 is wound round the outer circumference of a central conductor 1, the process is carried out under such environment that relative humidity is kept at not more than 60 percent. Moreover, the film 12 is connectively wound while heat control is being carried out in such a manner that the circumferential temperature of the film 12 given at a point of time when the film 12 is wound round via a heating device 13 may come to a constant temperature ranging from 40 to 80 degrees centigrade, and then a capacitor core 4 is formed while an equalizer electrode 3 is being inserted between the turns of the film for each specified size. The film can thus be wound round in such a condition that moisture whose molecular size does not much exceed several tens of angstroms, while being attached to the surface of the film 12, has been completely removed through a heating process under the environment of low humidity even if a bushing is formed for high-voltage service and in a large size to increase the wound width of the film 12. The process of drying the film is accordingly curtailed to facilitate manufacture of the bushing, and also the long- term insulation reliability of the bushing can be improved.

8. 发明专利

JPH02103914A TRANSFORMER FOR GAS INSULATED METER 失效
公开(公告)号：JPH02103914A
公开(公告)日：1990-04-17
申请号：JP25768888
申请日：1988-10-13
申请人： TOSHIBA CORP
发明人： MIZUTANI MASAAKI
IPC分类号： H01F38/24
摘要： PURPOSE:To promote weight reduction and to simplify the manufacturing of a sealed vessel and to make it compact and cheap by mounting the ancillary parts of a transformer intensively in a unit box which has strength capable of with-standing insulating gas pressure, being attached to the sealed vessel. CONSTITUTION:A polyhedral unit box 12 has communication holes 13a-13e communicating with inner space 12a, and one face among them is fastened air-tightly to a coupling unit seat 14 being formed at the copper plate 5' of a sealed vessel 5 and is communicating with the inside of the vessel 5. The box 12 is so formed as to enough withstand the pressure of insulating gas 4 pressurized in the vessel 5. Ancillary parts such as a bushing 7, a low pressure terminal 8, an insulating gas charging valve 9, a pressure switch 10, a pressure avoiding device, etc., are fastened air-tightly to the communication holes 13a-13e parts respectively, and necessary connections with voltage transforming element in the sealed vessel 5 are done.

9. 发明专利

JPS63244726A GAS-INSULATED POTENTIAL TRANSFORMER 失效
公开(公告)号：JPS63244726A
公开(公告)日：1988-10-12
申请号：JP7851587
申请日：1987-03-31
申请人： TOSHIBA CORP
发明人： MIZUTANI MASAAKI
IPC分类号： H01F38/24
摘要： PURPOSE:To contrive miniaturization of the title transformer, to improve the reliability of its sealing part and to contrive reduction in the processing work of sealing by a method wherein, among each part constituting an airtight tank, a tank and a base are formed in an integral structure by welding, the space in which a voltage transforming part will be firmly fixed is provided. CONSTITUTION:A cover 8 and a flange 11b to be used to fasten the cover are provided on the upper part of a tank 11a, the lower part of the tank 11a has the outside diameter coinciding with the diameter of a tank 11, and the tabular base 11c on which a hole 11e is provided on the inside is formed into integral structure by welding leaving the space necessary to fix a voltage transforming part 5. Besides, a mirror-faced plate 11d, having the diameter coinciding with the diameter of the hole 11e of the base 11c, is integrally constructed with the base 11c by welding. The voltage transforming part 5 is suspended from the aperture part of the upper flange 11b of the airtight tank 11 formed in integral structure as above-mentioned, and said voltage transforming part 5 is securely fastened to the base 11c with a bolt using a special jig. Subsequently, the cover 8 and a spacer 9 are airtightly fastened through the intermediary of the sealing material such as a gasket and the like. As a result, the weight of the title transformer can be decreased substantially by the reduction in outside diameter and by hollowing the center part.

10. 发明专利

JPS6182411A Gas insulated potential transformer 失效
标题翻译：气体绝缘电位变压器
公开(公告)号：JPS6182411A
公开(公告)日：1986-04-26
申请号：JP20485384
申请日：1984-09-29
申请人： Toshiba Corp
发明人： MIZUTANI MASAAKI
IPC分类号： H01F38/24 , H01F38/26
CPC分类号： H01F38/26
摘要： PURPOSE:To enhance iron resonance suppressing effect and to remove an excess space by mounting a saturable reactor as an iron resonance suppressor on a low voltage lead bushing seat, and connecting a low voltage coil with the lead bushing of the coil. CONSTITUTION:A saturable reactor is mounted to surround a low voltage lead bushing seat inside a tank of the low voltage lead bushing seat. Insulating plates 16 having a plenty of electric insulation are disposed at both ends of a saturable reactor 15 inside a tank 8 of the low voltage lead bushing seat 14, a plurality of clamping parts 18 are disposed on the outer periphery of a metal retainer 17 and the reactor 15, and mounted on the seat 14. Thus, the lead of the reactor 15 can be extremely shortened as compared with the conventional one. Therefore, the resistance value of the reactor 15 including the leads decreases to increase the resistance loss when the reactor 15 operates as an iron resonance suppressor increases, thereby enhancing the suppressing effect.
摘要翻译：目的：通过在低压铅套座上安装作为铁共振抑制器的可饱和电抗器，并将低压线圈与线圈的引线衬套连接，来提高铁共振抑制效果并消除过剩空间。构成：一个可饱和电抗器被安装在低压引线座底座的低压引线衬套座内。具有大量电绝缘的绝缘板16设置在低压引线衬套座14的罐8内的可饱和电抗器15的两端，多个夹紧部18布置在金属保持器17的外周上，反应器15，并且安装在座椅14上。因此，与常规的相比，反应器15的引线可以极大地缩短。因此，包含引线的电抗器15的电阻值随着铁谐振抑制器的增加而减小反应器15的工作时的电阻损耗，能够提高抑制效果。

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