JPS57135368A - Voltage detector for insulated wire - Google Patents
Voltage detector for insulated wireInfo
- Publication number
- JPS57135368A JPS57135368A JP56020462A JP2046281A JPS57135368A JP S57135368 A JPS57135368 A JP S57135368A JP 56020462 A JP56020462 A JP 56020462A JP 2046281 A JP2046281 A JP 2046281A JP S57135368 A JPS57135368 A JP S57135368A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- electrode
- insulated wire
- variation
- hollow pipe
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/24—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices
- G01R15/241—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using electro-optical modulators, e.g. electro-absorption
- G01R15/242—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using electro-optical modulators, e.g. electro-absorption based on the Pockels effect, i.e. linear electro-optic effect
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
PURPOSE:To fetch variation of a voltage as variation of the transmission quantity of light, by using a photoelectric converting element such as Bi12SiO20 being a voltage-optical sensor, when detecting the voltage of an insulated wire. CONSTITUTION:An electrode plate 2 is made to tightly adhere to a part of the circumference of an insulator of an insulated wire 1. This electrode plate 2 is coupled with the primary electrode of a voltage divider 3, the secondary electrode and the tertiary electrode of the voltage divider 3 are connected to a sensor 4 of a photoelectric converting element 6, and a variation of voltage is fetched as a variation of the quantity of light. Said voltage divider 3 is formed by the primary electrode for high voltage 31, the secondary electrode for ground 32 and the tertiary electrode for voltage division 33, and these electrodes 31- 33 are plate-like electrodes and are placed in parallel with each other. Also, to the secondary electrode 32, a hollow pipe is connected, a metallic rod insulated from the hollow pipe is made to pass through this hollow pipe, and this rod is connected to the tertiary electrode 33. In this way, voltage of an electric conductor can be detected and measured from the outside of the covering of the insulated wire 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56020462A JPS57135368A (en) | 1981-02-15 | 1981-02-15 | Voltage detector for insulated wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56020462A JPS57135368A (en) | 1981-02-15 | 1981-02-15 | Voltage detector for insulated wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57135368A true JPS57135368A (en) | 1982-08-20 |
Family
ID=12027745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56020462A Pending JPS57135368A (en) | 1981-02-15 | 1981-02-15 | Voltage detector for insulated wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57135368A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60169771A (en) * | 1984-02-14 | 1985-09-03 | Sumitomo Electric Ind Ltd | Electrostatic potential detection apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4944911A (en) * | 1972-09-06 | 1974-04-27 | ||
| JPS5049623A (en) * | 1973-08-10 | 1975-05-02 |
-
1981
- 1981-02-15 JP JP56020462A patent/JPS57135368A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4944911A (en) * | 1972-09-06 | 1974-04-27 | ||
| JPS5049623A (en) * | 1973-08-10 | 1975-05-02 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60169771A (en) * | 1984-02-14 | 1985-09-03 | Sumitomo Electric Ind Ltd | Electrostatic potential detection apparatus |
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