JPH0310653Y2 - - Google Patents

Description

【考案の詳細な説明】 本案は内装形変流器装置の改良に関する。内装
形変流器装置はガス絶縁開閉装置、母線装置等の
容器内に収納して使用される。ところで、変流器
装置は、定格の変動によつて鉄心の高さが変動す
る。[Detailed Description of the Invention] The present invention relates to an improvement of an internal current transformer device. An internal current transformer device is used by being housed in a container such as a gas insulated switchgear or busbar device. Incidentally, in a current transformer device, the height of the iron core changes due to a change in rating.

従来は定格の変動による鉄心の高さに応じ得る
よう部品を用意していた。従つて、部品の種類が
多くなる欠点があつた。 Previously, parts were prepared to accommodate the height of the iron core due to fluctuations in rating. Therefore, there was a drawback that the number of types of parts increased.

本案はこの点に鑑み部品の標準化を計つた内装
形変流器装置を提供することを目的とする。 In view of this point, the purpose of this proposal is to provide an internal current transformer device in which parts are standardized.

以下、図面の実施例を参照して本案を説明す
る。第１図において１は接地電位におかれた金属
製の容器で、内部にはSF₆ガスの如き絶縁媒体２
が所定圧力で充填されている。３は容器１中の配
設された内装形変流器装置、４は装置３と直列接
続された遮断器、５，６は遮断器４の両側に設け
られた接地装置である。 The present invention will be described below with reference to embodiments of the drawings. In Figure 1, 1 is a metal container placed at ground potential, and inside is an insulating medium 2 such as SF ₆ gas.
is filled at a predetermined pressure. 3 is an internal current transformer device disposed in the container 1, 4 is a circuit breaker connected in series with the device 3, and 5 and 6 are grounding devices provided on both sides of the circuit breaker 4.

前記変流器装置３はこの実施例では各相共通の
支え板７、各相共通の押え板８、支え板７で支持
された各相の鉄心９、各相共通の鉄心押え板１
０、板７，８，１０を貫通する総ネジのスタツド
１１、スタツド１１に螺入されたナツト１２、支
え板用のシールド１３、押え板用シールド１４、
一次導体１５等より成つている。１６，１７，１
８は絶縁スペーサ、１９は端蓋である。 In this embodiment, the current transformer device 3 includes a support plate 7 common to each phase, a holding plate 8 common to each phase, an iron core 9 of each phase supported by the support plate 7, and a core holding plate 1 common to each phase.
0, a fully threaded stud 11 that passes through the plates 7, 8, and 10, a nut 12 screwed into the stud 11, a shield 13 for the support plate, a shield 14 for the presser plate,
It consists of a primary conductor 15 and the like. 16,17,1
8 is an insulating spacer, and 19 is an end cover.

シールド１３は板７の下側に、シールド１４は
板８の上側にそれぞれ当てがわれたうえ、互に接
近する如く挿入される。２０はシールド１３，１
４で１ターンが形成されるのを防止するための絶
縁リングである。また、シールド１４の鉄心覆い
部は対向する充電部、即ち遮断器４の側に設けら
れている。 The shield 13 is applied to the lower side of the plate 7, and the shield 14 is applied to the upper side of the plate 8, and they are inserted so as to be close to each other. 20 is shield 13,1
This is an insulating ring to prevent one turn from being formed by 4. Further, the core cover portion of the shield 14 is provided on the opposing live portion, that is, on the side of the circuit breaker 4.

鉄心９は第２図の如く３相分が狭い容器１内で
遮断器４との距離を確保する如く容器側壁に沿つ
て配設されている。３相分の鉄心９は１枚の支え
板７で支持されている。支え板７は、鉄心３相分
の外形に略々沿つた包絡線を形成しており、第３
図の如く、一次導体１５の貫通孔７ａとスタツド
１１の貫通孔７ｂが設けられている。２１は容器
１の内側に設けられた装置支持用の取付板であ
る。 As shown in FIG. 2, the iron core 9 is arranged along the side wall of the container so as to ensure a distance from the circuit breaker 4 within the narrow container 1 for three phases. The iron cores 9 for three phases are supported by one support plate 7. The support plate 7 forms an envelope that roughly follows the outer shape of the three phases of the iron core.
As shown in the figure, a through hole 7a for the primary conductor 15 and a through hole 7b for the stud 11 are provided. 21 is a mounting plate provided inside the container 1 for supporting the device.

前記スタツド１１は支え板７、押え板８、鉄心
押え板１０をそれぞれ挿通している。ナツト１２
によつて、支え板７、押え板８間は最大許容寸法
にセツトされ、固定されている。鉄心９は、支え
板７上に載置され押え板１０で押付固定されてい
る。鉄心押え板１０はこれを支持固定するナツト
１２の調整により総ネジを切つたスタツド１１上
の任意の位置に固定できる。従つて定格変動等に
より鉄心１の長さ方向の寸法が変動しても同一部
品で対応する。内装形変流器装置３のふれが必配
な場合は押え板８又はシールド１４を容器１に固
定しても良い。 The stud 11 passes through the support plate 7, the presser plate 8, and the core presser plate 10, respectively. nut 12
Accordingly, the distance between the support plate 7 and the presser plate 8 is set to the maximum allowable dimension and is fixed. The iron core 9 is placed on the support plate 7 and is pressed and fixed by a presser plate 10. The core holding plate 10 can be fixed at any position on the fully threaded stud 11 by adjusting the nut 12 that supports and fixes it. Therefore, even if the longitudinal dimension of the iron core 1 changes due to rating fluctuations, etc., the same parts can be used. If deflection of the internal current transformer device 3 is unavoidable, the holding plate 8 or the shield 14 may be fixed to the container 1.

以上の実施例では、鉄心押え板１０に総ネジの
スタツドを挿通したので、鉄心押え板１０を支え
板７、押え板８間の所定位置に固定し得、従つて
定格変動その他による鉄心９の高さの変動があつ
ても同一の部品で対処でき、部品の種類を削減で
きる。また、スタツド１１が取付板２１を挿通す
れば内挿形変流器装置３の容器１に対する支持の
ために別の部材を要せず便利である。さらに、支
え板７、押え板８、鉄心押え板１０を同一の形状
とすれば部品の種類がより少なくなり便利であ
る。 In the above embodiment, since the fully threaded stud is inserted into the core holding plate 10, the core holding plate 10 can be fixed at a predetermined position between the supporting plate 7 and the holding plate 8, and therefore, the core holding plate 10 can be fixed at a predetermined position between the supporting plate 7 and the holding plate 8. Even if the height changes, it can be handled with the same parts, reducing the number of parts. Further, if the stud 11 is inserted through the mounting plate 21, it is convenient because no separate member is required to support the internal current transformer device 3 to the container 1. Furthermore, if the support plate 7, presser plate 8, and core presser plate 10 have the same shape, the number of types of parts will be reduced, which is convenient.

なお、上記実施例では３相のものについて説明
したが単相のものにも適用できることは勿論であ
る。 In the above embodiment, a three-phase system has been described, but it goes without saying that it can also be applied to a single-phase system.

以上詳述した如く、本案によれば、総ネジのス
タツドを用いたので鉄心押え板を支え板と押え板
間の任意の位置に固定でき、同一部品で高さの異
なる鉄心に対処可能となり、部品の標準化を計つ
た内装形変流器を提供し得る効果がある。 As detailed above, according to the present invention, since a fully threaded stud is used, the core holding plate can be fixed at any position between the supporting plate and the holding plate, and the same component can be used for cores of different heights. This has the effect of providing an internal current transformer with standardized parts.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本案の１実施例を示す簡略側断面図、
第２図は第１図の−線に沿う縦断面図、第３
図は第１図のものの分解斜視図である。なお、第
１図、第３図は３相のうち１相分のみを示してい
る。 １：容器、２：絶縁媒体、７：支え板、８：押
え板、９：鉄心、１０：鉄心押え板、１１：スタ
ツド、１２：ナツト。 FIG. 1 is a simplified side sectional view showing one embodiment of the present invention;
Figure 2 is a longitudinal sectional view taken along the - line in Figure 1;
The figure is an exploded perspective view of the one shown in FIG. 1. Note that FIGS. 1 and 3 show only one of the three phases. 1: Container, 2: Insulating medium, 7: Support plate, 8: Holding plate, 9: Iron core, 10: Core holding plate, 11: Stud, 12: Nut.

Claims (1)

【実用新案登録請求の範囲】 (1) 絶縁媒体を充填した容器内で支え板と押え板
との間に配設された鉄心押え板と、前記鉄心押
え板で前記支え板との間に固定され且つ一次導
体が貫通した鉄心と、前記鉄心押え板を挿通し
前記支え板と押え板に達する総ネジを有するス
タツドと、このスタツドに前記鉄心押え板を固
定する固定手段とを備えて成ることを特徴とす
る内装形変流器装置。 (2) スタツドが支え板と押え板と鉄心押え板とを
挿通している実用新案登録請求の範囲第１項記
載の内装形変流器装置。 (3) 支え板と押え板と鉄心押え板が同一形状であ
る実用新案登録請求の範囲第１項記載の内装形
変流器装置。[Scope of Claim for Utility Model Registration] (1) A core holding plate disposed between a support plate and a holding plate in a container filled with an insulating medium, and a core holding plate fixed between the supporting plate and the core holding plate. and a stud having a full screw that passes through the core holding plate and reaches the supporting plate and the holding plate, and fixing means for fixing the core holding plate to the stud. An internal current transformer device featuring: (2) The internal current transformer device according to claim 1 of the utility model registration claim, in which the stud passes through the supporting plate, the holding plate, and the core holding plate. (3) The internal current transformer device according to claim 1, wherein the supporting plate, the holding plate, and the core holding plate have the same shape.