JPS5554450A - Electric current measuring instrument - Google Patents
Electric current measuring instrumentInfo
- Publication number
- JPS5554450A JPS5554450A JP8770178A JP8770178A JPS5554450A JP S5554450 A JPS5554450 A JP S5554450A JP 8770178 A JP8770178 A JP 8770178A JP 8770178 A JP8770178 A JP 8770178A JP S5554450 A JPS5554450 A JP S5554450A
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- magnetic field
- power
- transmission line
- detection part
- 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
- 230000005540 biological transmission Effects 0.000 abstract 11
- 238000001514 detection method Methods 0.000 abstract 7
- 239000012212 insulator Substances 0.000 abstract 1
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
PURPOSE: To miniaturize a transmission current measuring instrument and also to lower its cost by suspending a magnetic field detection part, transmission part and power part driving the both by a transmission line and then by providing a reception part spatially away from the transmission line.
CONSTITUTION: Magnetic field detection part 2 detects a magnetic field generated around transmission line 1, and transmission part 3 converts an analog-value magnetic field detection signals given from magnetic detection part 2 into a digital value, code it and then sent it out to the space. Further, power transformer 4 and power circuit 5 forming a power supply part supply driving power to magnetic detection part 2 or transmission part 3. Then, those magnetic detection part 2, transmission part 3 and power supply part are suspended by transmission line 1. Reception part 6 is spatially isolated from magnetic field detection part and transmission part 3 and receives a surge signal from transmission part 3 to perfrom digital display of the current value. In this constitution, a high-dielectric-strength insulator can be omitted, so that the unit can be miniaturized and priced low.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8770178A JPS5554450A (en) | 1978-07-20 | 1978-07-20 | Electric current measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8770178A JPS5554450A (en) | 1978-07-20 | 1978-07-20 | Electric current measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5554450A true JPS5554450A (en) | 1980-04-21 |
Family
ID=13922213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8770178A Pending JPS5554450A (en) | 1978-07-20 | 1978-07-20 | Electric current measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5554450A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6373158A (en) * | 1986-06-09 | 1988-04-02 | ナイアガラ モ−ホ−ク パワ− コ−ポレ−シヨン | Monitoring equipment for sensor module of transmission line |
-
1978
- 1978-07-20 JP JP8770178A patent/JPS5554450A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6373158A (en) * | 1986-06-09 | 1988-04-02 | ナイアガラ モ−ホ−ク パワ− コ−ポレ−シヨン | Monitoring equipment for sensor module of transmission line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU1363992A (en) | Meter for measuring power consumption of an electrical appliance | |
| AU547941B2 (en) | Circuit interrupter with remote indicator and power supply | |
| EP0294635A3 (en) | Current sensor for universal application | |
| EP0294636A3 (en) | Mrs current sensor | |
| GB2013351B (en) | Signal comparator and indicator circuit | |
| JPS5310235A (en) | Simple type wire telecommunication unit | |
| JPS5554443A (en) | Electric current measuring instrument | |
| JPS5554450A (en) | Electric current measuring instrument | |
| GB2005111A (en) | A telephone charge pulse receiver circuit | |
| JPS5587961A (en) | System for identifying fault point of power transmission line | |
| GB1513038A (en) | Electrical transformers of the kind employing a magnetic core | |
| AU506618B2 (en) | Circuit breaker pole unit | |
| JPS5543420A (en) | Metallic material examination device | |
| JPS54124602A (en) | Radiotelephony system | |
| JPS5665223A (en) | Electric power supply control system | |
| JPS55149860A (en) | Electric signal measuring circuit | |
| JPS5384142A (en) | Remote making circuit of electric source switch | |
| JPS547228A (en) | Pedestal clamp circuit | |
| JPS5437223A (en) | All wave rectifying circuit | |
| JPS551660A (en) | Signal detection circuit | |
| DE2965170D1 (en) | Circuit arrangement for the reception of single current and double current telegraph signals | |
| JPS52114940A (en) | Digital protective relay unit of multiple terminal transmission line | |
| JPS51146878A (en) | Detected torque modifying system in electric dinamometer | |
| JPS52115344A (en) | Digital protective relay device | |
| JPS5611365A (en) | Remote measuring method for resistance value of balance cable |