JPH0626444B2 - Substation for small capacity distribution - Google Patents
Substation for small capacity distributionInfo
- Publication number
- JPH0626444B2 JPH0626444B2 JP2130950A JP13095090A JPH0626444B2 JP H0626444 B2 JPH0626444 B2 JP H0626444B2 JP 2130950 A JP2130950 A JP 2130950A JP 13095090 A JP13095090 A JP 13095090A JP H0626444 B2 JPH0626444 B2 JP H0626444B2
- Authority
- JP
- Japan
- Prior art keywords
- transformer
- gas
- voltage
- substation
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000020169 heat generation Effects 0.000 claims description 7
- 239000004020 conductor Substances 0.000 description 13
- 238000009413 insulation Methods 0.000 description 12
- 239000008186 active pharmaceutical agent Substances 0.000 description 8
- 238000004804 winding Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 101000874141 Homo sapiens Probable ATP-dependent RNA helicase DDX43 Proteins 0.000 description 5
- 102100035724 Probable ATP-dependent RNA helicase DDX43 Human genes 0.000 description 5
- 101000581533 Homo sapiens Methylcrotonoyl-CoA carboxylase beta chain, mitochondrial Proteins 0.000 description 4
- 102100027320 Methylcrotonoyl-CoA carboxylase beta chain, mitochondrial Human genes 0.000 description 4
- 230000002411 adverse Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 102100022907 Acrosin-binding protein Human genes 0.000 description 2
- 101000756551 Homo sapiens Acrosin-binding protein Proteins 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Gas-Insulated Switchgears (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、小容量配電用変電塔に関するものである。TECHNICAL FIELD The present invention relates to a substation for small capacity power distribution.
［従来の技術］ 計器用変成器、開閉器及び変圧器を含む高圧側機器を備
えてなる高圧盤と低圧側機器を備えてなる低圧盤とから
なる小容量配電用変電塔が受変電設備に用いられてい
る。従来の小容量発電用変電塔では、気中の配電盤中に
高圧盤と低圧盤とを配置していた。そのため例えば従来
の６．６ｋＶ，１５０ｋＶＡクラスまたはそれ以下の小
容量の変電塔では、気中負荷開閉器、油入変圧器または
モールド形変圧器、モールド形計器用変成器等を用いて
いる。また従来の変電塔では絶縁の信頼性が低いため
に、計器用変圧器及び変圧器に対してヒューズを直列に
接続していた。[Prior Art] A small-capacity distribution substation consisting of a high-voltage panel equipped with high-voltage side equipment including a transformer for switches, switches and transformers and a low-voltage panel equipped with low-voltage side equipment is used as a substation facility. It is used. In a conventional small-capacity power generation substation, a high-voltage board and a low-voltage board are arranged in a distribution board in the air. Therefore, for example, in a conventional substation with a small capacity of 6.6 kV, 150 kVA class or less, an air load switch, an oil-filled transformer or a mold type transformer, a transformer for a mold type instrument, etc. are used. Further, in the conventional substation, since the insulation reliability is low, the fuse is connected in series to the instrument transformer and the transformer.
［発明が解決しようとする課題］ 従来の変電塔のように気中の配電盤に高圧盤及び低圧盤
を配置した場合には、高圧係機器間の配線や高圧側機器
本体の一部が気中に露出することになり、絶縁の信頼性
が低下する問題がある上、また湿度や塵埃等の外部から
の影響を受けやすい問題がある。また気中に高圧側機器
を配置する場合には、各機器の保守点検を１年毎に定期
的を行う必要があり、更にヒューズを使用する場合に
は、ヒューズを交換する等のメンテナンスが必要になる
問題があった。[Problems to be Solved by the Invention] When a high-voltage board and a low-voltage board are arranged in a distribution board in the air like a conventional substation, wiring between high-voltage devices and a part of the high-voltage side equipment body are in the air. In addition, there is a problem that the reliability of insulation is lowered, and there is a problem that humidity, dust, and the like are easily affected from the outside. In addition, when locating high-voltage equipment in the air, it is necessary to perform maintenance and inspection of each equipment periodically every year, and when using fuses, maintenance such as replacement of fuses is required. There was a problem.
本発明の目的は、絶縁の信頼度が高く且つメンテナンス
フリー化を図ることができる小容量配電用変電塔を提供
することにある。An object of the present invention is to provide a small-capacity substation for power distribution that has high insulation reliability and can be maintenance-free.
［課題を解決するための手段］ 本発明は、少なくとも計器用変成器、開閉器及び変圧器
を含む高圧側機器を備えてなる高圧盤と低圧側機器を備
えてなる低圧盤とを配電盤に収納してなる小容量配電用
変電塔を対象とする。本発明においては、開閉器として
変圧器の励磁電流のみを開閉する断路器を用い、また変
圧器として発熱量を抑制したガス絶縁変圧器を用いる。
そして高圧側機器を絶縁ガスが封入されたガス容器内に
収納する。[Means for Solving the Problems] The present invention stores a high-voltage panel including a high-voltage side device including at least an instrument transformer, a switch, and a transformer, and a low-voltage panel including a low-voltage side device in a switchboard. The target is a small-capacity substation for distribution. In the present invention, a disconnector that opens and closes only the exciting current of the transformer is used as the switch, and a gas-insulated transformer that suppresses heat generation is used as the transformer.
Then, the high-voltage side device is housed in a gas container in which an insulating gas is sealed.
計器用変性器として、機器用変圧器及び変流器の少なく
とも１つを設ければよい。この計器用変圧器はガス絶縁
計器用変成器またはモールド形機器用変成器のいずれで
もよい。At least one of a device transformer and a current transformer may be provided as the instrument modifier. The instrument transformer may be either a gas-insulated instrument transformer or a molded instrument transformer.
また断路器にはその受電側を接地する接地開閉器を付属
構造として設けてもよい。Further, the disconnecting switch may be provided with a grounding switch for grounding the power receiving side as an attached structure.
［作 用］ 変圧器として小容量で且つ発熱量を抑制した変圧器を用
いたので、変圧器の発熱により絶縁ガスの温度を、開閉
器（断路器）の動作に悪影響を与えるほどに上昇させる
ことがない。また開閉器として断路器を用いて、開閉器
で開閉（遮断）する電流を変圧器の励磁電流のみとした
ので、断路器が動作する際に発生する絶縁ガスの分解ガ
スの量を変圧器の絶縁物に悪影響を与えない程度に抑制
することができる。従って本発明によれば、１個のガス
容器内に高圧側機器を一括して配置することが可能にな
る。[Operation] Since a transformer with a small capacity and reduced calorific value was used as the transformer, the heat of the transformer raises the temperature of the insulating gas to such an extent that it adversely affects the operation of the switch (disconnector). Never. Also, since a disconnector is used as a switch and the current that is opened and closed (interrupted) by the switch is only the exciting current of the transformer, the amount of decomposition gas of the insulating gas generated when the disconnector operates can It can be suppressed to such an extent that the insulator is not adversely affected. Therefore, according to the present invention, it is possible to collectively arrange the high-pressure side devices in one gas container.
本発明のように高圧側機器を絶縁ガスが封入された１個
のガス容器内に収納してガス絶縁を行えば、受電端子部
を除き高圧側機器の本体及び各高圧側機器間の配線をガ
ス絶縁することができ、絶縁の信頼性を大幅に向上させ
ることができる。また密封したガス容器内に高圧側機器
が配置されることから、高圧側機器が湿度や塵埃の影響
を全く受けることがない。絶縁の信頼性を高くできるこ
と及び外部からの影響を受けないことから、計器用変圧
器及び変圧器に対してヒューズを設ける必要性がなくな
り、変電塔のメンテナンスフリー化を図れる利点があ
る。As in the present invention, if the high-voltage side device is housed in a single gas container in which an insulating gas is sealed and gas insulation is performed, the main body of the high-voltage side device and the wiring between each high-voltage side device are excluded except for the power receiving terminal portion. Gas insulation can be performed, and the reliability of insulation can be significantly improved. Moreover, since the high-pressure side device is arranged in the sealed gas container, the high-pressure side device is not affected by humidity or dust at all. Since the insulation can be made highly reliable and is not affected by the outside, it is not necessary to provide a fuse for the instrument transformer and the transformer, and there is an advantage that the substation can be maintenance-free.
［実施例］ 以下図面を参照して本発明の実施例を詳細に説明する。Embodiments Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図は、本発明の一実施例の変電塔の単線結線図であ
り、２本の回線Ａ，Ｂに接続された導体Ｌの途中に変流
器ＣＴ１が配置され、また計器用変圧器ＰＴが２相の導
体間に接続されている。導体Ｌｉには接地開閉器を備え
たガス絶縁断路器ＤＳ／ＥＳを介してガス絶縁変圧器Ｔ
Ｒの一次巻線（高圧側巻線）が接続され、変圧器ＴＲの
二次巻せ（低圧側巻線）には低圧遮断器ＭＣＣＢが接続
されている。配電線Ｌ０には低圧側の変流器ＣＴ２が配
置さている。本実施例では、高圧側機器（ＣＴ１，Ｐ
Ｔ，ＤＳ／ＥＳ，ＴＲ）が共通のガス絶縁された１個の
ガス容器ＧＣ内に収納されている。FIG. 1 is a single wire connection diagram of a transformer tower according to an embodiment of the present invention, in which a current transformer CT1 is arranged in the middle of a conductor L connected to two lines A and B, and an instrument transformer. The PT is connected between the two-phase conductors. The conductor Li is connected to the gas-insulated transformer T via the gas-insulated disconnector DS / ES equipped with a ground switch.
A primary winding (high-voltage side winding) of R is connected, and a low-voltage circuit breaker MCCB is connected to a secondary winding (low-voltage side winding) of the transformer TR. A low-voltage-side current transformer CT2 is arranged on the distribution line L 0 . In this embodiment, the high voltage side device (CT1, P
(T, DS / ES, TR) are housed in a common gas-insulated gas container GC.
第２図（Ａ）ないし（Ｄ）は、第１図の結線図に基づい
て構成した三相一括形の小容量配電用変電塔の実施例の
概略縦断面図、第２図（Ａ）のＢ−Ｂ線断面図、Ｃ−Ｃ
線断面図、Ｄ−Ｄ線断面図である。これらの図において
１は、建屋形式の配置盤であり、この配電盤の内部には
ガス容器ＧＣが配置されている。ガス容器ＧＣには、鉄
製で気密構造に構成されており、ガス容器ＧＣの低壁部
ＧＣ１には、ガス絶縁式の三相変圧器ＴＲが載置されて
いる。この三相変圧器ＴＲには、第２図（Ａ）に概略的
に示すように無電圧タップ切換器ＴＣが備え付けられて
おり、この無電圧タップ切換器ＴＣにより所望の電圧を
得ることができる。なお予め変電塔の使用条件が判って
いる場合には、所定を変圧比の変圧器ＴＲを用意すれば
よく、無電圧タップ切換器ＴＣを設ける必要はない。な
お変圧器ＴＲは、６．６ｋＶ，１５０ｋＶＡ程度の小容
量の変圧器で、できる限り発熱量が少ないものを用い
る。変圧器の発熱を抑制するためには、鉄損及び銅損を
少なくすればよく、そのためには鉄心及び巻線としてで
きる限り損失の少ないものを用いる。2 (A) to 2 (D) are schematic vertical cross-sectional views of an embodiment of a three-phase batch type small capacity distribution substation constructed based on the wiring diagram of FIG. 1, and FIG. BB line sectional view, CC
It is a line sectional view and a DD sectional view. In these drawings, reference numeral 1 denotes a building-type arrangement board, and a gas container GC is arranged inside the distribution board. The gas container GC is made of iron and has an airtight structure, and a gas insulation type three-phase transformer TR is mounted on the lower wall portion GC1 of the gas container GC. The three-phase transformer TR is provided with a non-voltage tap changer TC as schematically shown in FIG. 2 (A), and a desired voltage can be obtained by the non-voltage tap changer TC. . If the usage conditions of the substation are known in advance, a transformer TR having a predetermined transformation ratio may be prepared, and it is not necessary to provide the non-voltage tap changer TC. The transformer TR is a small-capacity transformer of about 6.6 kV and 150 kVA, and uses a heat generation amount that is as small as possible. In order to suppress the heat generation of the transformer, it is sufficient to reduce the iron loss and the copper loss, and for that purpose, the iron core and the winding having the least loss are used.
変圧器ＴＲの上部には、ガス絶縁式の３台の変流器ＣＴ
11〜ＣＴ13が配置されている。これらの変流器は巻線形
の変流器であり、その励磁導体は導体Ｌ11〜Ｌ13にそれ
ぞれ接続されている。導体Ｌ11〜Ｌ13は、ガス容器ＧＣ
の側壁ＧＣ２に気密に固定された端子盤２の対応する２
つの端子に電気的に接続されている。端子盤２には３本
の接続端子からなる端子列が上下２列に配設されてお
り、上方端子列にはＡ回線のケーブル導体３が接続さ
れ、下方の端子例にはＢ回線のケーブル導体３が接続さ
れている。配電盤１の底部から立ち上げられたケーブル
導体３…の先端にはＬ形コネクタ４…が取付けられてお
り、端子盤２の外部に露出する受電端子部はＬ形コネク
タ４…によって包囲されている。変流器ＣＴ11及びＣＴ
12の励磁導体間にはガス絶縁形の計器用変圧器ＰＴが接
続されている。なおこれら変流器ＣＴ11〜ＣＴ13及び計
器用変圧器ＰＴの二次出力は、図示しない端子盤を介し
てガス容器ＧＣの外部に引き出されている 第２図（Ｂ）及び（Ｃ）に示すように、３台の変流器Ｃ
Ｔ11〜ＣＴ13の上部には、受電側（ケーブル３側）を接
地する接地開閉器を備えた三相分の断路器ＤＳ／ＥＳが
設けられている。断路器ＤＳ／ＥＳは、ガス容器ＧＣの
両側壁に回転自在に支持された回転軸５と、該回転軸５
に対して絶縁した状態で固定された３個の接触子６…
と、変流器ＣＴ11〜ＣＴ13の励磁導体が接続された３個
の端子７…と、該端子７…に一端が接続され他端が対応
する接触子６…に常時接触して接触子６…を端子７…に
電気的に接続する３個の接触片８…と、三相変圧器ＴＲ
の各単相変圧器の一次巻線に接続された３個の第１の接
点端子９…と、ガス容器ＧＣの壁部に設けた図示しない
接地端子に電気的に接続された３個の第２の接点端子１
０…とから構成されている。第２図（Ａ）に示した状態
は、断路器ＤＳ／ＥＳの接触子６…がいずれの接点端子
にも接触していない状態であり、給電を行う場合には接
触子６…が第１の接点端子９…に接触し、断路と接地と
を行う場合には接触子６…が第２の接点端子１０…に接
触する。断路器の操作はガス容器ＧＣの外側に設けた断
路器操作器１１を用いて行う。断路器操作器１１の回動
アーム１２が時計回り方向に回動すると途中まで図示し
た連結アーム１３が移動して回転軸５に連結して設けた
図示しない回動アームが時計回り方向に回動し、接触子
６…は第２の接点端子１０に接続される。Above the transformer TR, three gas-insulated current transformers CT
11 to CT13 are arranged. These current transformers are winding type current transformers, and their exciting conductors are connected to the conductors L11 to L13, respectively. The conductors L11 to L13 are gas containers GC.
Corresponding 2 of the terminal board 2 airtightly fixed to the side wall GC2 of the
Electrically connected to two terminals. The terminal board 2 is provided with terminal rows consisting of three connection terminals arranged in upper and lower two rows, the cable conductor 3 of the A line is connected to the upper terminal row, and the cable line of the B line is connected to the lower terminal example. The conductor 3 is connected. L-shaped connectors 4 are attached to the tips of the cable conductors 3 that are erected from the bottom of the switchboard 1, and the power receiving terminal portions exposed to the outside of the terminal board 2 are surrounded by the L-shaped connectors 4. . Current transformer CT11 and CT
A gas-insulated instrument transformer PT is connected between the 12 exciting conductors. The secondary outputs of the current transformers CT11 to CT13 and the instrument transformer PT are drawn to the outside of the gas container GC via a terminal board (not shown), as shown in FIGS. 2 (B) and (C). And three current transformers C
Above T11 to CT13, a three-phase disconnector DS / ES having a grounding switch for grounding the power receiving side (cable 3 side) is provided. The disconnector DS / ES includes a rotary shaft 5 rotatably supported on both side walls of the gas container GC, and the rotary shaft 5
3 contacts 6 fixed in an insulated state with respect to
, The three terminals 7 connected to the exciting conductors of the current transformers CT11 to CT13, and the contact 6 having one end connected to the terminal 7 and the other end constantly contacting the corresponding contact 6. Of the three contact pieces 8 for electrically connecting the terminals 7 to the terminals 7 ... and the three-phase transformer TR
, Three first contact terminals 9 connected to the primary winding of each single-phase transformer, and three third electrically connected ground terminals (not shown) provided on the wall of the gas container GC. 2 contact terminals 1
0 ... and. The state shown in FIG. 2 (A) is a state in which the contacts 6 ... Of the disconnecting switch DS / ES are not in contact with any contact terminals, and when power is supplied, the contacts 6 ... Contacting the contact terminals 9 of the above and contacting the second contact terminals 10 when disconnecting and grounding. The operation of the disconnector is performed by using the disconnector operator 11 provided outside the gas container GC. When the rotating arm 12 of the disconnector operating device 11 rotates in the clockwise direction, the connecting arm 13 shown in the figure moves partway to rotate the rotating arm (not shown) connected to the rotating shaft 5 in the clockwise direction. The contacts 6 ... Are connected to the second contact terminal 10.
第２図（Ａ）及び（Ｄ）に示すように三相変圧器ＴＲの
二次巻線の出力端子は、ガス容器ＧＣの壁部ＧＣ３に気
密に固定された４個のブッシング１４…の導体の一端に
接続されている。ブッシング１４の導体の他端（ガス容
器の外側の端部）は、低圧遮断器ＭＣＣＢの対応する入
力端子にそれぞれ接続されている。低圧遮断器ＭＣＣＢ
から出力される配電線Ｌ01〜Ｌ03には低圧側変流器ＣＴ
21〜ＣＴ23が設けられている。As shown in FIGS. 2A and 2D, the output terminal of the secondary winding of the three-phase transformer TR is a conductor of four bushings 14 ... Airtightly fixed to the wall portion GC3 of the gas container GC. Is connected to one end of. The other end of the conductor of the bushing 14 (the outer end of the gas container) is connected to the corresponding input terminal of the low-voltage circuit breaker MCCB. Low voltage circuit breaker MCCB
The distribution line L 0 1 to L 0 3 output from the low voltage side current transformer CT
21 to CT23 are provided.
鉄製のガス容器ＧＣ内には、不燃性の極めて安定したＳ
Ｆ６ガスが封入されており、防災上の安全性は極めて優
れている。In the gas container GC made of iron, non-combustible and extremely stable S
Since F6 gas is enclosed, safety in disaster prevention is extremely excellent.
上記実施例においては、三相変圧器ＴＲとして小容量で
且つ発熱量を抑制した変圧器を用いているので、変圧器
ＴＲの発熱により絶縁ガスであるＳＦ６ガスの温度を、
断路器ＤＳ／ＥＳの動作に悪影響を与えるほどに上昇さ
せることがない。また開閉器として断路器ＤＳ／ＥＳを
用いて、開閉器で開閉する電流を変圧器ＴＲの励磁電流
のみとしたので、断路器が動作する際に発生するＳＦ６
ガスの分解ガスの量を少なくして、この分解ガスにより
変圧器の絶縁物が悪影響を受けるのを抑制することがで
きる。In the above-described embodiment, since the transformer having a small capacity and suppressing the heat generation amount is used as the three-phase transformer TR, the temperature of the SF6 gas, which is the insulating gas, is changed by the heat generation of the transformer TR.
It does not rise to the extent that it adversely affects the operation of the disconnector DS / ES. Further, since the disconnecting switch DS / ES is used as the switch and only the exciting current of the transformer TR is used as the current to be opened / closed by the switch, SF6 generated when the disconnecting switch operates.
By reducing the amount of gas decomposed, it is possible to prevent the insulator of the transformer from being adversely affected by the gas decomposed.
上記実施例のように１個のガス容器ＧＣ内に高圧側機器
を収納配置すれば、ガス漏れ監視等の保護装置を一系統
にすることができ、保護装置の構成を簡略化することが
できる。また絶縁性能が高くなるために、計器用変圧器
及び三相変圧器に対して保護用のヒューズを設ける必要
がなくなり、変電塔のメンテナンスフリー化を図ること
ができる。更に受電側の端子部を充電部が露出しない脱
着式のケーブル端末（Ｌ形コネクタ）で覆っているた
め、高圧側の充電部が全く露出しない構造となり、絶縁
性を極めて高くして安全性を高めることができる。If the high-pressure side device is housed and arranged in one gas container GC as in the above-described embodiment, the protection device for gas leakage monitoring or the like can be integrated into one system, and the configuration of the protection device can be simplified. . Further, since the insulation performance is improved, it is not necessary to provide a protective fuse for the instrument transformer and the three-phase transformer, and the substation can be maintenance-free. Furthermore, since the power receiving side terminal is covered with a removable cable terminal (L-type connector) where the charging part is not exposed, the structure is such that the charging part on the high voltage side is not exposed at all, and the insulation is extremely high for safety. Can be increased.
上記実施例においては、断路器として接地開閉器を付属
した構造のものを用いたが、接地開閉器の機能を付属さ
せることは必須の要件ではない。また計器用変成器（Ｃ
Ｔ及びＰＴ）はガス絶縁変成器またはエポキシモールド
品のモールド式変成器のどちらを設けてもよい。In the above-described embodiment, a structure having a grounding switch attached as a disconnecting switch is used, but it is not essential to attach the function of the grounding switch. In addition, the instrument transformer (C
T and PT) may be either gas insulated transformers or molded transformers of epoxy molded products.
［発明の効果］ 本発明によれば、変圧器として小容量で且つ発熱量を抑
制した変圧器を用い且つ断路器で遮断する電流を変圧器
の励磁電流のみとしたので、１個のガス容器内に高圧側
機器を一括して配置することができ、その結果受電端子
部を除き高圧側機器の本体及び各高圧側機器間の配線を
ガス絶縁することができて、絶縁の信頼性を大幅に向上
させることができる。また密封したガス容器内に高圧機
器を配置したので、高圧側機器が湿度や塵埃の影響を全
く受けることがなく、絶縁の信頼性を高くできることと
相俟って、計器用変圧器及び変圧器に対してヒューズを
設ける必要性をなくして、変電塔のメンテナンスフリー
化を図れる利点がある。[Effect of the Invention] According to the present invention, since a transformer having a small capacity and suppressing heat generation is used as the transformer and the current interrupted by the disconnector is only the exciting current of the transformer, one gas container is used. It is possible to place all high-voltage side devices together in a single unit, and as a result, the main body of the high-voltage side device and the wiring between each high-voltage side device can be gas-insulated except for the power-receiving terminal section, greatly increasing the reliability of insulation Can be improved. In addition, since the high-voltage equipment is placed in a sealed gas container, the high-voltage equipment is not affected by humidity or dust at all, and the insulation reliability can be improved. There is an advantage that the substation can be maintenance-free by eliminating the need to provide a fuse.
第１図は本発明の実施例の変電塔の単線結線図であり、
第２図（Ａ）は第１図の結線図に基づいて構成した三相
一括形の小容量配電用変電塔の実施例の概略縦断面図、
第２図（Ｂ）は第２図（Ａ）のＢ−Ｂ線断面図、第２図
（Ｃ）は第２図（Ａ）のＣ−Ｃ線断面図、第２図（Ｄ）
は第２図（Ａ）のＤ−Ｄ線断面図である。 ＣＴ１，ＣＴ11〜ＣＴ13……変流器、ＰＴ……計器用変
圧器、ＴＲ……三相変圧器、ＧＣ……ガス容器、ＤＳ／
ＥＳ……接地開閉器付き断路器、ＭＣＣＢ……低圧遮断
器、ＣＴ２，ＣＴ21〜ＣＴ23……低圧側変流器、１……
配電盤、２……端子盤、３……ケーブル、４……Ｌ形コ
ネクタ、１１……断路器操作器、１４……ブッシング。FIG. 1 is a single wire connection diagram of a substation of an embodiment of the present invention,
FIG. 2 (A) is a schematic vertical cross-sectional view of an embodiment of a three-phase batch type small capacity distribution substation constructed based on the wiring diagram of FIG. 1,
2 (B) is a sectional view taken along line BB of FIG. 2 (A), FIG. 2 (C) is a sectional view taken along line CC of FIG. 2 (A), and FIG. 2 (D).
FIG. 3 is a sectional view taken along line DD of FIG. 2 (A). CT1, CT11 to CT13 ... Current transformer, PT ... Instrument transformer, TR ... Three-phase transformer, GC ... Gas container, DS /
ES: disconnecting switch with earthing switch, MCCB: low-voltage circuit breaker, CT2, CT21 to CT23 ... low-voltage side current transformer, 1 ...
Switchboard, 2 ... Terminal board, 3 ... Cable, 4 ... L-type connector, 11 ... Disconnector operation device, 14 ... Bushing.
Claims (1)
器を含む高圧側機器を備えてなる高圧盤と低圧側機器を
備えてなる低圧盤とを配電盤に収納してなる小容量配電
用変電塔において、 前記開閉器として前記変圧器の励磁電流のみを開閉する
断路器を用い、前記変圧器として発熱量を抑制したガス
絶縁変圧器を用い、前記高圧側機器を絶縁ガスが封入さ
れた１個のガス容器内に収納したことを特徴とする小容
量配電用変電塔。1. A small-capacity distribution substation in which a high-voltage panel including a high-voltage side device including at least an instrument transformer, a switch, and a transformer and a low-voltage panel including a low-voltage side device are housed in a switchboard. In the tower, a disconnector that opens and closes only the exciting current of the transformer is used as the switch, a gas-insulated transformer that suppresses heat generation is used as the transformer, and the high-voltage side device is filled with an insulating gas. A small-capacity substation for power distribution characterized by being housed in individual gas containers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2130950A JPH0626444B2 (en) | 1990-05-21 | 1990-05-21 | Substation for small capacity distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2130950A JPH0626444B2 (en) | 1990-05-21 | 1990-05-21 | Substation for small capacity distribution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0426308A JPH0426308A (en) | 1992-01-29 |
| JPH0626444B2 true JPH0626444B2 (en) | 1994-04-06 |
Family
ID=15046444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2130950A Expired - Fee Related JPH0626444B2 (en) | 1990-05-21 | 1990-05-21 | Substation for small capacity distribution |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0626444B2 (en) |
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| CN102185262A (en) * | 2011-02-10 | 2011-09-14 | 山东计保电气有限公司 | Intelligent integrated substation |
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| CN102522711A (en) * | 2011-12-29 | 2012-06-27 | 青岛特锐德电气股份有限公司 | Combined substation |
| CN102623912A (en) * | 2012-03-20 | 2012-08-01 | 无锡市宇超电气科技有限公司 | Box-type transformer substation |
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| CN103362327B (en) * | 2013-07-31 | 2016-06-29 | 国家电网公司 | Staircase built-in fully-guarded intelligent power distribution station transformer |
| CN104167681A (en) * | 2014-09-11 | 2014-11-26 | 何成祥 | Safety type preassembled transformer substation |
| CN104538879A (en) * | 2015-01-14 | 2015-04-22 | 黄河科技学院 | Box type fixed alternating-current metal-enclosed switchgear |
| CN111525431A (en) * | 2020-06-05 | 2020-08-11 | 天晟电气股份有限公司 | A high and low voltage prefabricated substation with built-in partitions and multiple channels |
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1990
- 1990-05-21 JP JP2130950A patent/JPH0626444B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767140A (en) * | 2015-04-24 | 2015-07-08 | 河北高晶电器设备有限公司 | Intelligent on-load capacity regulating and voltage regulating box-type substation |
| CN106451168A (en) * | 2016-10-26 | 2017-02-22 | 成都交大许继电气有限责任公司 | Prefabricated intelligent traction substation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0426308A (en) | 1992-01-29 |
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| LAPS | Cancellation because of no payment of annual fees |