JPH02227622A - Temperature measuring method for cable conductor - Google Patents
Temperature measuring method for cable conductorInfo
- Publication number
- JPH02227622A JPH02227622A JP4897489A JP4897489A JPH02227622A JP H02227622 A JPH02227622 A JP H02227622A JP 4897489 A JP4897489 A JP 4897489A JP 4897489 A JP4897489 A JP 4897489A JP H02227622 A JPH02227622 A JP H02227622A
- Authority
- JP
- Japan
- Prior art keywords
- cable
- conductor
- temperature
- cable conductor
- lead wire
- 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.)
- Pending
Links
- 239000004020 conductor Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims description 7
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 5
- 229920003020 cross-linked polyethylene Polymers 0.000 abstract description 4
- 239000004703 cross-linked polyethylene Substances 0.000 abstract description 4
- 239000012212 insulator Substances 0.000 abstract description 4
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は、通電しながらケーブルの所定位置の導体温度
を直接測定できるようにしたケーブル導体の温度測定方
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a method for measuring the temperature of a cable conductor, which allows the temperature of a conductor at a predetermined position of a cable to be directly measured while electricity is being applied.
（従来の技術）
従来、ケーブルに通電しながらその導体温度を監視する
場合には、測定対象のケーブルに通電しながらケーブル
防食層の温度を測定して、ケーブル防食層の温度から求
めた発熱量とケーブルの熱抵抗から計算により導体温度
を推定する方法がとられていた。(Prior art) Conventionally, when monitoring the conductor temperature of a cable while energizing it, the temperature of the cable anti-corrosion layer is measured while the cable is being energized, and the amount of heat generated is determined from the temperature of the cable anti-corrosion layer. The method used was to estimate the conductor temperature by calculation from the thermal resistance of the cable.
（発明が解決しようとする問題点）
しかしながら、このような従来の方法では、計算のもと
になる各定数のバラツキにより誤差が生じる上に、過渡
現象であるため導体温度をリアルタイムで監視すること
ができないという問題があった。(Problems to be solved by the invention) However, with such conventional methods, errors occur due to variations in each constant used as the basis of calculation, and since it is a transient phenomenon, it is difficult to monitor the conductor temperature in real time. The problem was that it was not possible.
本発明は、このような従来の問題を解消すべくなされた
もので、所定位置の導体温度をリアルタイムで測定する
ことを可能とした電力ケーブルを提供することを目的と
する。The present invention was made to solve these conventional problems, and an object of the present invention is to provide a power cable that makes it possible to measure the conductor temperature at a predetermined position in real time.
［発明の構成］
（問題点を解決するための手段）
本発明のケーブル導体の温度測定方法は、ケーブル導体
の中空部に予めリードワイヤーを引込んで成るケーブル
を延線し、延線後にケーブルの他端側から前記リードワ
イヤーを引出して前記リードワイヤーの一端に予め取着
した温度センサーをケーブル導体の所定位置の中空部内
に引込み、この温度センサーによってケーブル導体の所
定位置の温度を測定することを特徴としている。[Structure of the Invention] (Means for Solving the Problems) The method for measuring the temperature of a cable conductor according to the present invention involves extending a cable formed by drawing a lead wire into a hollow part of the cable conductor in advance, and then extending the cable after drawing the lead wire into the hollow part of the cable conductor. The lead wire is pulled out from the other end, a temperature sensor attached in advance to one end of the lead wire is drawn into a hollow portion at a predetermined position of the cable conductor, and the temperature at the predetermined position of the cable conductor is measured by this temperature sensor. It is a feature.
（作 用）
本発明においては、ケーブル導体の所定位置の中空部に
直接温度センサーを配設してケーブルの導体温度を測定
するので、誤差がほとんどなくなり、またリアルタイム
でケーブルの導体温度の測定を行うことができる。(Function) In the present invention, since the temperature sensor is placed directly in the hollow part of the cable conductor at a predetermined position to measure the cable conductor temperature, there is almost no error, and the cable conductor temperature can be measured in real time. It can be carried out.
（実施例） 以下本発明の一実施例を図面を参照しながら説明する。(Example) An embodiment of the present invention will be described below with reference to the drawings.
第１図に示すように、本発明において使用するケーブル
１は、中空撚線導体等から成るケーブル導体２上に、半
導電層３を介して架橋ポリエチレン絶縁体４が被覆され
、さらにその外周に外部半導電層５を介してその外側に
塩化ビニル樹脂シース６が形成されている。そしてケー
ブル導体１の中空部内には、導体の圧縮加工や分割導体
のセグメント撚合せ加工に耐え得るに充分な強度を有す
る金属管、例えばアルミパイプ７が内挿されており、こ
のアルミパイプ７内には予めリードワイヤー８が延線さ
れ、その端部は第２図に示すように、ケーブル導体２の
アルミパイプ７を通ってケーブル外へ引き出されている
。As shown in FIG. 1, a cable 1 used in the present invention has a cable conductor 2 made of a hollow stranded conductor or the like coated with a cross-linked polyethylene insulator 4 via a semiconducting layer 3, and further coated on the outer periphery of the cable conductor 2. A vinyl chloride resin sheath 6 is formed on the outside of the outer semiconductive layer 5. A metal pipe, for example, an aluminum pipe 7 , which has sufficient strength to withstand compression processing of the conductor and segment twisting processing of divided conductors, is inserted into the hollow portion of the cable conductor 1 . A lead wire 8 is extended in advance, and the end thereof is drawn out of the cable through the aluminum pipe 7 of the cable conductor 2, as shown in FIG.
なお、リードワイヤー８の一端には、順次熱電対９およ
び補償導線１１が接続されている。Note that a thermocouple 9 and a compensation conducting wire 11 are sequentially connected to one end of the lead wire 8.
しかして、かかる構成のケーブル１を延線し、延線後に
ケーブル１の他端側からリードワイヤー８を引き出して
、温度センサーすなわち熱電対９をケーブル導体のアル
ミパイプ７内の所定位置（例えば垂直布設路の対流によ
るホットポイントとなるＸ点１０）に引き込む。After the cable 1 having such a configuration is extended, the lead wire 8 is pulled out from the other end of the cable 1, and the temperature sensor, that is, the thermocouple 9 is placed at a predetermined position (e.g. vertically) inside the aluminum pipe 7 of the cable conductor. It is drawn into point X 10), which is a hot point due to convection in the installation path.
一方、このケーブル１の端末部には、第３図に示すよう
に、Ｅ１０変換器１２が配置され、補償導線１１はこの
Ｅ１０変換器１２に接続されて熱電対９の電圧信号はこ
こで光信号に変換される。On the other hand, as shown in FIG. 3, an E10 converter 12 is arranged at the end of the cable 1, and the compensation conductor 11 is connected to this E10 converter 12, so that the voltage signal of the thermocouple 9 is transmitted to the optical signal. converted into a signal.
そして光信号に変換された信号は絶縁体である光ファイ
バー１３により大地電位レベルでＯ／Ｅ変換器１４に送
られ、ここで０／Ｅ変換されて測定器１５に送られる。The signal converted into an optical signal is sent to the O/E converter 14 at the ground potential level through the optical fiber 13, which is an insulator, where it is converted to O/E and sent to the measuring device 15.
なお、以上の実施例では、本発明を架橋ポリエチレン電
カケープルに適用した例について説明したが、ＯＦケー
ブル、その池の電カケープルにも同様に適用できること
は勿論である。In the above embodiments, an example in which the present invention is applied to a cross-linked polyethylene power cable is described, but it goes without saying that the present invention can be similarly applied to an OF cable and its battery power cable.
［発明の効果］
以上説明したように、本発明のケーブル導体の温度測定
方法においては、温度センサーを、ケーブル導体内の所
定位置に直接挿入しているので、ケーブルの導体温度を
リアルタイムで測定することができる。[Effects of the Invention] As explained above, in the cable conductor temperature measurement method of the present invention, the temperature sensor is inserted directly into a predetermined position within the cable conductor, so the cable conductor temperature can be measured in real time. be able to.
従って、本発明においては、変動する負荷および周囲温
度に応じて最大効率でケーブルの運転をすることができ
る。Therefore, the present invention allows the cable to be operated with maximum efficiency in response to varying loads and ambient temperatures.
また通電を同時に行う試験用途にも利用することができ
る。It can also be used for testing purposes in which electricity is applied at the same time.
第１図は本発明において使用するケーブルの横断面図、
第２図は熱電対および補償導線の引込状況を示す説明図
、第３図は本発明のケーブルの測定回路の構成を概略的
に示す図である。
１・・・・・・・・・・・・ケーブル
２・・・・・・・・・・・・ケーブル導体３．５・・・
・・・半導電層
４・・・・・・・・・・・・架橋ポリエチレン絶縁体６
・・・・・・・・・・・・塩化ビニル［１１１シース７
・・・・・・・・・・・・アルミパイプ８・・・・・・
・・・・・・リードワイヤー９・・・・・・・・・・・
・熱電対
１０・・・・・・・・・ホットポイント１１・・・・・
・・・・補償導線
１２・・・・・・・・・Ｅ１０変換器
１３・・・・・・・・・光ファイバー
１４・・・・・・・・・Ｏ／Ｅ変換器
第
図
第３図FIG. 1 is a cross-sectional view of the cable used in the present invention;
FIG. 2 is an explanatory diagram showing how the thermocouple and compensation lead wire are drawn in, and FIG. 3 is a diagram schematically showing the configuration of the cable measuring circuit of the present invention. 1......Cable 2...Cable conductor 3.5...
...Semiconducting layer 4...Crosslinked polyethylene insulator 6
・・・・・・・・・・・・ Vinyl chloride [111 sheath 7
・・・・・・・・・・・・Aluminum pipe 8・・・・・・
・・・・・・Lead wire 9・・・・・・・・・・・・
・Thermocouple 10...Hot point 11...
...Compensation conductor 12...E10 converter 13...Optical fiber 14...O/E converter Fig.3
Claims (1)
成るケーブルを延線し、延線後にケーブルの他端側から
前記リードワイヤーを引出して前記リードワイヤーの一
端に予め取着した温度センサーをケーブル導体の所定位
置の中空部内に引込み、この温度センサーによってケー
ブル導体の所定位置の温度を測定することを特徴とする
ケーブル導体の温度測定方法。A cable is extended by drawing a lead wire into a hollow part of the cable conductor in advance, and after drawing out the lead wire from the other end of the cable, a temperature sensor previously attached to one end of the lead wire is attached to the cable conductor. A method for measuring the temperature of a cable conductor, the method comprising: drawing the cable conductor into a hollow portion at a predetermined position, and measuring the temperature at the predetermined position of the cable conductor using the temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4897489A JPH02227622A (en) | 1989-02-28 | 1989-02-28 | Temperature measuring method for cable conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4897489A JPH02227622A (en) | 1989-02-28 | 1989-02-28 | Temperature measuring method for cable conductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02227622A true JPH02227622A (en) | 1990-09-10 |
Family
ID=12818239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4897489A Pending JPH02227622A (en) | 1989-02-28 | 1989-02-28 | Temperature measuring method for cable conductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02227622A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097927A (en) * | 2020-08-13 | 2020-12-18 | 华南理工大学 | Installation fixing device of thermal resistance |
-
1989
- 1989-02-28 JP JP4897489A patent/JPH02227622A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097927A (en) * | 2020-08-13 | 2020-12-18 | 华南理工大学 | Installation fixing device of thermal resistance |
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