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1. 发明专利

JP2009016768A Transformer for gas insulated meter 审中-公开
标题翻译：气体绝缘仪用变压器
公开(公告)号：JP2009016768A
公开(公告)日：2009-01-22
申请号：JP2007180297
申请日：2007-07-09
申请人： Nissin Electric Co Ltd , 日新電機株式会社
发明人： KAWABUCHI YOSHIKI , AOYANAGI MASAHITO
IPC分类号： H01F38/24
摘要： PROBLEM TO BE SOLVED: To solve the problem wherein large power for displacement action is needed in a gas VT which performs connection and separation with high voltage circuit with displacement in a longitudinal direction, which also causes an increase in size of the gas VT and an increase in weight of a joint with GIS. SOLUTION: A transformer for a gas insulated meter comprises: a high voltage conductor 10 connectable to a high voltage circuit; a voltage transforming element 18 which is faced with the high voltage conductor 10 and has a contact 11; and a mechanism 14 which is connected to the voltage transforming element 18 and turns it circumferentially to put the contact 11 in touch with the high voltage conductor 10 or separate them. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题为了解决在长度方向上发生位移的高压电路进行连接和分离的气体VT中需要用于位移动作的大功率的问题，这也导致气体的尺寸增加 VT和与GIS联合的重量增加。解决方案：用于气体绝缘表的变压器包括：可连接到高压电路的高压导体10; 电压转换元件18，其面对高压导体10并具有触点11; 以及机构14，其连接到电压转换元件18并使其周向旋转以将触点11与高压导体10接触或分离。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2000077248A Transformer for gas insulated instrument 审中-公开
标题翻译：气体绝缘仪表变压器
公开(公告)号：JP2000077248A
公开(公告)日：2000-03-14
申请号：JP24126898
申请日：1998-08-27
申请人： Nissin Electric Co Ltd , 日新電機株式会社
发明人： KAWABUCHI YOSHIKI , NAKAJIMA SOICHI
IPC分类号： H01R4/66 , H01F27/28 , H01F38/24
摘要： PROBLEM TO BE SOLVED: To reduce in the potential rise of a transformer container itself due to a high-frequency surge by directly connecting the low-pressure side of the primary coil of a transformer body to a connection line without through the transformer container. SOLUTION: In a transformer 1 for a gas insulated instrument, a ground terminal plate 19 is provided at a bottom part 6a in the terminal box 6 by electrically insulating from a terminal box 6 and a transformer container 2 by an insulator 18. The low-voltage side of the primary coil of a transformer body airtightly passes through the side wall of the transformer container 2 through a bushing 8 for leading to the outside, at the same time, passes through the bottom plate 6a of the terminal box 6 for introducing into the terminal box 6, and is electrically connected to the ground terminal plate 19 in the terminal box 6 via a grounding wire 9. The ground terminal plate 19 is grounded to a ground wire 12. Then, a gap-fixing plate 20 is fixed to the ground terminal plate 19, and a pair of gap formation electrodes 21 for suppressing the increase in the potential of the ground wire 12 is placed on the gap-fixing plate 20.
摘要翻译：要解决的问题：为了通过将变压器主体的初级线圈的低压侧直接连接到连接线而不通过变压器容器，由于高频浪涌而减小变压器容器本身的电位上升。解决方案：在用于气体绝缘仪器的变压器1中，接地端子板19通过绝缘体18与接线盒6和变压器容器2电绝缘而设置在接线盒6的底部6a处。变压器主体的初级线圈的电压侧通过用于引导到外部的衬套8气密地穿过变压器容器2的侧壁，同时穿过接线盒6的底板6a以引入接线盒6通过接地线9与接线盒6中的接地端子板19电连接。接地端子板19接地到地线12.然后，将间隙固定板20固定到接地端子板19和用于抑制接地线12的电位增加的一对间隙形成电极21被放置在间隙固定板20上。

3. 发明专利

JPH08148348A VOLTAGE TRANSFORMER 失效
公开(公告)号：JPH08148348A
公开(公告)日：1996-06-07
申请号：JP29095394
申请日：1994-11-25
申请人： NISSIN ELECTRIC CO LTD
发明人： KAWABUCHI YOSHIKI , TAKAHASHI TERUYUKI
IPC分类号： H01F27/32 , H01F38/24
摘要： PURPOSE: To obtain a voltage transformer in which the heat resistance can be enhanced while suppressing the cost increase CONSTITUTION: A winding 2 for primary coil is wound through a layer insulation film layer 3 to constitute a primary coil. The layer insulation film layer 3 employs an insulation film, having heat resistance higher than that of an intermediate layer insulation film 3b, as a surface layer insulation film 3a touching the winding 2 for primary coil.

4. 发明专利

JPH06204060A INSTRUMENT TRANSFORMER 失效
公开(公告)号：JPH06204060A
公开(公告)日：1994-07-22
申请号：JP122093
申请日：1993-01-07
申请人： NISSIN ELECTRIC CO LTD
发明人： KANO TAKAHARU , KAWABUCHI YOSHIKI
IPC分类号： H01C7/02 , H01F38/24 , H01F40/04
摘要： PURPOSE:To suppress secondary overcurrent without using a fuse by connecting an overcurrent suppressing impedance, which has such property that the resistance value becomes small when the current in a secondary winding is not more than a rated value, and that the resistance value goes up sharply by temperature rise when the current exceeds the rated value, in series to the secondary winding. CONSTITUTION:An overcurrent suppressing impedance 5 is connected in series to a secondary winding 2. The overcurrent suppressing impedance 5 has such a property that the resistance value becomes small when the current in the secondary winding 2 is not more that the rated value and that it sharply increases by temperature rise when the current in the secondary winding 2 exceeds the set value set larger than the rated value. Moreover, this overcurrent suppressing impedance 5 is constituted of an object where a parallel resistor being constituted by connecting a temperature sensing resistor element and a fixed resistor element with each other in parallel is connected in series.

5. 发明专利

JPS61137307A Gas insulated potential transformer 失效
标题翻译：气体绝缘电位变压器
公开(公告)号：JPS61137307A
公开(公告)日：1986-06-25
申请号：JP25973084
申请日：1984-12-08
申请人： Nissin Electric Co Ltd
发明人： HIGAKI SHIGEO , KAWABUCHI YOSHIKI
IPC分类号： H01F38/24 , H01F27/02 , H01F38/26
CPC分类号： H01F27/02 , H01F38/26
摘要： PURPOSE:To prevent entrance of the external air into an exclusive tank even in case a pressure tank is opened, by providing an exclusive tank having a hermetically sealed structure which is resistive to a little pressure difference and valves communicating with internal and external sides and also providing a gas insulated potential transformer. CONSTITUTION:A gas insulated potential transformer 3 is previously filled with insulation gas and is stored under the condition that an automatic valve 7 is closed. At the time of assembling, the transformer 3 is housed together with an exclusive tank 2 within a pressure tank 1. After the assembling of interior, the tank 1 undergoes sealing, vacuum exhaustion and supply of gas. Namely, in the case of vacuum exhaustion, the valve 7 operates and opens depending on a pressure difference between internal and external pressure. Therefore, an excessive pressure difference is not applied on the tank 2. For the supply of gas, the valve 7 operates and opens depending on the pressure difference when the tank 1 is filled with the insulation gas, the insulation gas flows into the tank 2 from the tank 1, not generating an excessive pressure difference. Thereby, the transformer 3 holds initial insulation performance and it is enough for the tank 2 to have the sealed structure which is resistive to an internal and external pressure difference of about 0.3-0.4kg/cm .
摘要翻译：目的：为了防止外部空气进入专用水箱，即使在打开压力罐的情况下，通过提供具有阻力小的压力差的气密结构的专用油箱和与内部和外部相通的阀也可以提供气体绝缘电位变压器。构成：气体绝缘电压互感器3预先填充有绝缘气体，并在自动阀7关闭的条件下储存。在组装时，变压器3与专用箱2一起容纳在压力罐1内。在组装内部之后，箱1经历密封，真空排气和供应气体。也就是说，在真空耗尽的情况下，阀7根据内压和外压之间的压差而运行和打开。因此，不会对罐2施加过大的压力差。为了供给气体，阀7根据当罐1填充有绝缘气体时的压差而动作开启，绝缘气体流入槽2 来自罐1，不产生过大的压力差。因此，变压器3保持初始绝缘性能，并且足以使罐2具有耐大约0.3-0.4kg / cm 2的内部和外部压力差的密封结构。

6. 发明专利

JP2000068137A VOLTAGE TRANSFORMER 失效
公开(公告)号：JP2000068137A
公开(公告)日：2000-03-03
申请号：JP23409098
申请日：1998-08-20
申请人： NISSIN ELECTRIC CO LTD
发明人： KAWABUCHI YOSHIKI , NAGAOKA NORIAKI
IPC分类号： H01F38/24
摘要： PROBLEM TO BE SOLVED: To reduce the installation space of a voltage transformer for measuring a line voltage. SOLUTION: A non-grounded single phase transformer main body 13 is housed inside a transformer container 12. To the opening part of the transformer container 12, a 3-phase insulation spacer 15 supporting three through conductors 14a, 14b and 14c is attached. Both ends of the primary winding 16 of the transformer main body 13 are connected to the optional two through conductors 14a and 14b of the insulation spacer 15, and both ends of the secondary winding 17 of the transformer main body 13 are connected to a pair of through terminals 18a and 18b provided on the transformer container 12.

7. 发明专利

JPH09199358A TRANSFORMER FOR METER 失效
公开(公告)号：JPH09199358A
公开(公告)日：1997-07-31
申请号：JP921996
申请日：1996-01-23
申请人： NISSIN ELECTRIC CO LTD
发明人： SHIOJIRI TAKESHI , KANO TAKAHARU , KAWABUCHI YOSHIKI
IPC分类号： H01F27/26 , H01F38/24
摘要： PROBLEM TO BE SOLVED: To provide a transformer for a meter capable of readily fitting a winding. SOLUTION: A core clamper 2 clamps a laminated iron core 1 having an upper leg part 1A; a lower leg part 1B; a first yoke part 1C and a second yoke part 1D in a stacking direction. The core clamper 2 is divided into an L-shaped first clamper 2A for clamping the first yoke part 1C and the lower leg part 1B and an I-shaped second clamper 2B for clamping the second yoke part 1D. Under a condition that the yoke part 1C of a U-shaped iron core portion comprising the first yoke part 1C, the upper leg part 1A and the lower leg part 1B, and the lower leg part 1B are clamped by the first clamper 2A, a winding 6 is coiled on the upper leg part 1A, and after the second yoke part 1D is fitted, the second clamper 2B is fitted on the second yoke part 1D.

8. 发明专利

JPH0992557A PRIMARY WINDING OF TRANSFORMER FOR METER 失效
公开(公告)号：JPH0992557A
公开(公告)日：1997-04-04
申请号：JP24955095
申请日：1995-09-27
申请人： NISSIN ELECTRIC CO LTD
发明人： SHIOJIRI TAKESHI , KANO TAKAHARU , KAWABUCHI YOSHIKI
IPC分类号： H01F27/28 , H01F38/24 , H01F41/10
摘要： PROBLEM TO BE SOLVED: To provide the primary winding of a transformer for a meter, which can prevent voltage between layers from becoming high and interlayer insulating layer from becoming thick on the inner side part of a winding. SOLUTION: Groups W1 to Wn of winding layers are wound on the outer periphery of a spool B in a state that insulating layers L1 to Ln-1 are made to interpose between the winding layers, and the sectional form of the half of the whole winding is formed into a trapezoid shape. The groups of the winding layers are divided into the first groups W1 to Wm of the winding layers, which are positioned on the side close to the spool, and the second groups Wm+1 to Wn of the winding layers, which are positioned on the outsides of the first groups of the winding layers. The first groups W1 to Wm of the winding layers are formed by winding two parallel conductors C1 and C2 and the second groups Wm+1 to Wn of the winding layers are formed by winding one conductor C.

9. 发明专利

JPH07131927A SECONDARY SHORT CIRCUIT PROTECTOR FOR TRANSFORMER FOR METER 失效
公开(公告)号：JPH07131927A
公开(公告)日：1995-05-19
申请号：JP27451393
申请日：1993-11-02
申请人： NISSIN ELECTRIC CO LTD
发明人： KAWABUCHI YOSHIKI
IPC分类号： H02H9/02 , H02H7/04
摘要： PURPOSE:To provide a secondary short circuit protector for transformer for a meter, which can prevent an overcurrent from flowing at secondary short circuit and causing burn-out of a winding, without using a fuse. CONSTITUTION:A protection switch 1 is interposed between the secondary winding w2 of a transformer VT for a meter and secondary load L, and overcurrent suppressing impedances 2 are connected in parallel on both sides of the protective switches 1. The protection switch 1 is recovered into ON stage by providing a voltage detector 3, which detects the voltage across the secondary load 5 and generates an ON command when the detection value of voltage gets over the set value, and giving this ON command to the protection switch 1.

10. 发明专利

JPH04247609A TRANSFORMER FOR METER 失效
公开(公告)号：JPH04247609A
公开(公告)日：1992-09-03
申请号：JP1345291
申请日：1991-02-04
申请人： NISSIN ELECTRIC CO LTD
发明人： KAWABUCHI YOSHIKI
IPC分类号： H01F38/24
摘要： PURPOSE:To raise residual voltage to be induced to one of secondary windings when the other secondary windings of a transformer for meters provided with a plurality of secondary windings is short-circuited. CONSTITUTION:An adjustment impedance 8 is connected in series to at least one of secondary windings 1 of secondary windings 2, 3 which are provided in a plural number. Voltage generated on at least a part of the adjustment impedance is applied via an auxiliary transformer 9 to the other secondary winding 3.

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