JPS5833618Y2 - Coaxial low impedance power cable - Google Patents
Coaxial low impedance power cableInfo
- Publication number
- JPS5833618Y2 JPS5833618Y2 JP1979012907U JP1290779U JPS5833618Y2 JP S5833618 Y2 JPS5833618 Y2 JP S5833618Y2 JP 1979012907 U JP1979012907 U JP 1979012907U JP 1290779 U JP1290779 U JP 1290779U JP S5833618 Y2 JPS5833618 Y2 JP S5833618Y2
- Authority
- JP
- Japan
- Prior art keywords
- phase
- power cable
- low impedance
- impedance
- impedance power
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/04—Concentric cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
Landscapes
- Communication Cables (AREA)
Description
【考案の詳細な説明】
本考案は３相電カケ−プルの各相のインピーダンスのバ
ランスした同軸型低インピーダンス電カケープルに関す
るものである。[Detailed Description of the Invention] The present invention relates to a coaxial type low impedance electric cable in which the impedance of each phase of the three-phase electric cable is balanced.
近時大気流通電を必要とする電カケープルの需要が増大
しつつあり、このような電カケープルにはインビニダン
スの小さいものが要望され、この目的にそうものとして
３相の各相の導体を同軸状に配置した同軸型電カケープ
ルが知られている。Recently, the demand for electric power cables that require atmospheric current flow has been increasing, and such electric power cables are required to have small invinidance, and for this purpose, conductors for each of the three phases are Coaxial type electric cables arranged coaxially are known.
この同軸型電カケープルは第３図に示すように絶縁芯体
１′の周りに３個の円形導体線心２ｔ’、２゜′、２３
′を相互に絶縁３′シて同軸状に配置したもので最外層
には保護シース４′を施している。As shown in Fig. 3, this coaxial type electric cable has three circular conductor wire cores 2t', 2゜', 23 around an insulating core 1'.
' are mutually insulated 3' and arranged coaxially, and the outermost layer is provided with a protective sheath 4'.
３個の円形導体線心２、／、２２’、２３’をＲ８Ｔの
３相の導体として使用するもので、同軸状に配置されて
いるから低インピーダンスであるが第３図から明かなよ
うにＳ相はＴ相に、Ｒ相はＴ相Ｓ相に包まれた形状をな
し低インピーダンスではあるがアンバランスを生じ、３
相に不平衡電流が流れそれだけ損失が増加する欠点があ
った。Three circular conductor cores 2, 22', and 23' are used as the three-phase conductors of R8T, and because they are arranged coaxially, the impedance is low, as is clear from Figure 3. The S phase is wrapped in the T phase, and the R phase is wrapped in the T phase and the S phase, and although they have low impedance, they create an unbalance.
The disadvantage was that unbalanced currents flow through the phases, which increases losses accordingly.
本考案はこれに鑑み低インピーダンスでしかも３相のイ
ンピーダンスがバランスするようにしたもので、同軸状
に相互に絶縁して配置した３個の円形導体線心の各円形
導体線心を絶縁体を介し３相に分割したことを特徴とし
ている。In view of this, the present invention is designed to have low impedance and balance the impedance of the three phases.Three circular conductor cores are arranged coaxially and insulated from each other, and each of the circular conductor cores is insulated. It is characterized by being divided into three phases.
次にこれを図面に基づいてさらに詳細に説明する。Next, this will be explained in more detail based on the drawings.
第１図は本考案になる同軸型低インピーダンス電カケー
プルの一例を示したもので、従来の同軸型電カケープル
と同様に絶縁芯体１の周囲に相互に塩化ビニル、ポリエ
チレン等で絶縁３した３個の円形導体線心２□、２２
、２３が同軸状に配置されているが本考案においては円
形導体線心２゜、２□、２３のそれぞれをポリエチレン
のような絶縁体５を介し３相Ｒｔ、 Ｓｌ、 ＴＩ、
Ｒ２，Ｓ２． Ｔ２． Ｒ３，Ｓａ、 Ｔ３に分割した
のである。Fig. 1 shows an example of a coaxial type low impedance electric cable according to the present invention.Similar to the conventional coaxial type electric cable, the insulating core 1 is surrounded by two layers of insulation 3 each made of vinyl chloride, polyethylene, etc. circular conductor cores 2□, 22
, 23 are arranged coaxially, but in the present invention, each of the circular conductor wire cores 2°, 2□, 23 is connected to three phases Rt, Sl, TI, through an insulator 5 such as polyethylene.
R2, S2. T2. It was divided into R3, Sa, and T3.
図中４はケーブルの最外層に設けた塩化ビニルの保護シ
ースを示す。In the figure, 4 indicates a vinyl chloride protective sheath provided on the outermost layer of the cable.
このような本考案になる電カケープルを使用するには第
２図に示すようにＲ，Ｓ、Ｔ３相は電カケープル内でＲ
相はＲ，、Ｒ２，Ｒ３，Ｓ相はＳｌ、Ｓ２゜Ｓ３．Ｔ相
はＴ工、Ｔ２．Ｔ３と分流し各相は３個の円形導体線心
２□、２□、２３を流れ、したがって各相のバランスは
保持され低インピーダンスでその値は均等化され、不平
衡を生ずることなくしたがって損失の小さい同軸型電カ
ケープルが得られる。To use the power cable according to the present invention, as shown in Figure 2, the R, S, and T3 phases are connected to R within the power cable.
The phases are R, , R2, R3, and the S phase is Sl, S2°S3. T phase is T engineering, T2. T3 and shunt, each phase flows through three circular conductor wire cores 2□, 2□, 23, therefore the balance of each phase is maintained and its value is equalized with low impedance, without causing unbalance and therefore loss. A small coaxial power cable can be obtained.
次に実施例として３ Ｘ ２２ ｋｖ 、２５０ ｍｍ
２ノ３相同軸型電カケ−プルについて説明すれば従来の
もののインピーダンスは第一層Ｒ相０．４Ω／ｋｍ、第
２層Ｓ相０．２Ｑ／ｋｍ、第３層Ｔ相０．０７ Ｑ ／
ｋｍとアンバランスがあったが本考案のものは各相とも
０．２Ｑ／ｋｍとアンバランスがなくインピーダンスの
低減化ができたインピーダンスの測定は４００止で行っ
た）。Next, as an example, 3 x 22 kv, 250 mm
Regarding the 2/3 phase coaxial type electric cable, the impedance of the conventional one is 0.4Ω/km for the first layer R phase, 0.2Q/km for the second layer S phase, and 0.07Q for the third layer T phase. /
km and unbalance, but in the case of the present invention, there was no unbalance at 0.2Q/km for each phase, and the impedance was reduced.The impedance measurement was performed at 400 stop).
以上説明したように本考案によれば同軸型電カケープル
の各層の円形導体線心を絶縁体を介し３相に分割したの
で各相のインピーダンスはバランスした低インピーダン
スとすることができ損失の少ない電カケープルが容易に
得られる利点がある。As explained above, according to the present invention, the circular conductor core of each layer of the coaxial power cable is divided into three phases via an insulator, so the impedance of each phase can be made low and balanced, and the power loss can be reduced. It has the advantage that capeple can be easily obtained.
第１図は本考案になる同軸型低インピーダンス電カケー
プルの一例を示す断面図、第２図は同定カケープルの使
用例を示す説明図、第３図は従来の同軸型電カケープル
の断面図である。
２□、２２．２３・・・・・・相互に絶縁３した３個の
円形導体線心、５・・・・・・絶縁体。Fig. 1 is a sectional view showing an example of the coaxial type low impedance power cable according to the present invention, Fig. 2 is an explanatory view showing an example of the use of the identification cable, and Fig. 3 is a sectional view of a conventional coaxial type power cable. . 2□, 22.23...Three circular conductor cores insulated from each other, 5...Insulator.
Claims (1)
有し、各円形導体線心を絶縁体を介し３相に分割したこ
とを特徴とする同軸型低インピーダンス電カケープル。A coaxial low-impedance electric cable comprising three circular conductor cores arranged coaxially and insulated from each other, each of which is divided into three phases via an insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979012907U JPS5833618Y2 (en) | 1979-02-05 | 1979-02-05 | Coaxial low impedance power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979012907U JPS5833618Y2 (en) | 1979-02-05 | 1979-02-05 | Coaxial low impedance power cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55114114U JPS55114114U (en) | 1980-08-12 |
| JPS5833618Y2 true JPS5833618Y2 (en) | 1983-07-27 |
Family
ID=28830022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979012907U Expired JPS5833618Y2 (en) | 1979-02-05 | 1979-02-05 | Coaxial low impedance power cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5833618Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018102551A2 (en) | 2016-12-02 | 2018-06-07 | General Cable Technologies Corporation | Anti-power theft cables and methods |
-
1979
- 1979-02-05 JP JP1979012907U patent/JPS5833618Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55114114U (en) | 1980-08-12 |
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