JPS61122575U - - Google Patents
Info
- Publication number
- JPS61122575U JPS61122575U JP422285U JP422285U JPS61122575U JP S61122575 U JPS61122575 U JP S61122575U JP 422285 U JP422285 U JP 422285U JP 422285 U JP422285 U JP 422285U JP S61122575 U JPS61122575 U JP S61122575U
- Authority
- JP
- Japan
- Prior art keywords
- utility
- model registration
- cable sheath
- power source
- ammeter
- 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.)
- Granted
Links
- 238000009413 insulation Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 3
- 230000035945 sensitivity Effects 0.000 claims 2
- 238000005259 measurement Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Insulated Conductors (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Description
第１図は本考案実施例の等価回路図、第２図は
その使用法を示す概略図、第３図および第４図は
これに用いられる電流計の正面図、第５図は異な
る実施例の等価回路図である。
１…電力ケーブル、５…シース、１０…ケーブ
ルシース絶縁判定装置、１１，１２…電源、１３
，１４…抵抗体、１５，１６…電流計、１７…切
換え開閉器。
Fig. 1 is an equivalent circuit diagram of an embodiment of the present invention, Fig. 2 is a schematic diagram showing its usage, Figs. 3 and 4 are front views of an ammeter used in this, and Fig. 5 is a different embodiment. FIG. DESCRIPTION OF SYMBOLS 1... Power cable, 5... Sheath, 10... Cable sheath insulation determination device, 11, 12... Power supply, 13
, 14...Resistor, 15, 16...Ammeter, 17...Switching switch.
Claims (1)
圧値に応じて異なる抵抗値をもつ２つの抵抗体と
、ケーブルシースに高い電圧値の電源を高い抵抗
値の抵抗体を介してまたは低い電圧値の電源を低
い抵抗値の抵抗体を介して選択的に接続する切換
え接続手段と、ケーブルシースを通る電流を異な
る感度で検出する電流検出手段とを備えているこ
とを特徴とする、電力ケーブルのシース絶縁判定
装置。 ２ 電源として直流電源を使用することを特徴と
する、実用新案登録請求の範囲第１項に記載の装
置。 ３ 切換え接続手段として切換え開閉器が設けら
れることを特徴とする、実用新案登録請求の範囲
第１項に記載の装置。 ４ 電流検出手段として２つの電流計が用いられ
ることを特徴とする、実用新案登録請求の範囲第
１項に記載の装置。 ５ 電流検出手段として、感度変化用分流抵抗体
を接続される１つの電流計が用いられることを特
徴とする、実用新案登録請求の範囲第１項に記載
の装置。 ６ 電流計にケーブルシースの測定電流値と測定
抵抗値が目盛されていることを特徴とする、実用
新案登録請求の範囲第４項または第５項に記載の
装置。 ７ 電流計にケーブルシースの絶縁の良否に関す
る範囲が表示されていることを特徴とする、実用
新案登録請求の範囲第４項ないし第６項のいずれ
か１つに記載の装置。 ８ 測定を電力ケーブルのしやへい層と接地され
るシースとの間で行なうことを特徴とする、実用
新案登録請求の範囲第１項に記載の装置。[Claims for Utility Model Registration] 1. Two power supplies with different voltage values, two resistors with different resistance values depending on these voltage values, and a cable sheath with a high voltage power source and a high resistance resistor. comprising switching connection means for selectively connecting a power source of low voltage value through the body or through a resistor of low resistance value, and current detection means for detecting the current passing through the cable sheath with different sensitivities. A power cable sheath insulation determination device characterized by: 2. The device according to claim 1 of the utility model registration claim, which uses a DC power source as a power source. 3. The device according to claim 1 of the utility model registration claim, characterized in that a switching switch is provided as the switching connection means. 4. The device according to claim 1 of the utility model registration, characterized in that two ammeters are used as the current detection means. 5. The device according to claim 1 of the utility model registration, characterized in that one ammeter connected to a sensitivity changing shunt resistor is used as the current detection means. 6. The device according to claim 4 or 5 of the utility model registration, characterized in that the ammeter is scaled with the measured current value and measured resistance value of the cable sheath. 7. The device according to any one of claims 4 to 6, characterized in that the ammeter displays a range related to the quality of the insulation of the cable sheath. 8. The device according to claim 1 of the utility model registration, characterized in that the measurement is carried out between the flexible layer of the power cable and the sheath that is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP422285U JPH0453581Y2 (en) | 1985-01-18 | 1985-01-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP422285U JPH0453581Y2 (en) | 1985-01-18 | 1985-01-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61122575U true JPS61122575U (en) | 1986-08-01 |
| JPH0453581Y2 JPH0453581Y2 (en) | 1992-12-16 |
Family
ID=30479589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP422285U Expired JPH0453581Y2 (en) | 1985-01-18 | 1985-01-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0453581Y2 (en) |
-
1985
- 1985-01-18 JP JP422285U patent/JPH0453581Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0453581Y2 (en) | 1992-12-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4423373A (en) | Test probe | |
| CA2246935A1 (en) | Multimeter with current sensor | |
| GB8800081D0 (en) | Resistive fault location means & device for use on electrical cables | |
| JPS61122575U (en) | ||
| CN111141957A (en) | Measuring circuit and testing equipment for contact resistance of quick-change connector and electric automobile | |
| JPH01117780U (en) | ||
| JPS5851274U (en) | Tester for switchboard testing | |
| JPS63132328U (en) | ||
| JPH03109180U (en) | ||
| JPS6358763U (en) | ||
| JPS61173018U (en) | ||
| JPS5393072A (en) | Earthing resistance measuring apparatus | |
| JPS5615103A (en) | Trolley line height difference detector at transition | |
| JPS6258774U (en) | ||
| SU712777A1 (en) | Resistance measuring method | |
| JPH03125275U (en) | ||
| JPS62150671U (en) | ||
| JPS6463877A (en) | Earthing resistance measuring apparatus | |
| JPH0378277U (en) | ||
| JPH01135374U (en) | ||
| JPH01180776U (en) | ||
| JPS6319281U (en) | ||
| JPH0397673U (en) | ||
| JPH01105179A (en) | Induced voltage discriminating device | |
| JPS636339U (en) |