JPS5572862A - Electronic watt-hour meter - Google Patents
Electronic watt-hour meterInfo
- Publication number
- JPS5572862A JPS5572862A JP14608778A JP14608778A JPS5572862A JP S5572862 A JPS5572862 A JP S5572862A JP 14608778 A JP14608778 A JP 14608778A JP 14608778 A JP14608778 A JP 14608778A JP S5572862 A JPS5572862 A JP S5572862A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- wattmeter
- hour meter
- electronic watt
- current
- 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
Abstract
PURPOSE: To eliminate the need for the current input terminal of an electronic watt- hour meter, by detecting a load current by a current detection part provided with a through hole with a meter through hole.
CONSTITUTION: Through type current transformer 23 provided with a through hole coaxial with through hole 22 of electronic watt-hour meter 21 is provided in wattmeter 21 and a load current flowing through conductor 24 penetrating hole 22 is detected through transformer 23, so that integrated power will be displayed by wattmeter 21 through the multiplication of power detection part 6 with a detected voltage by integrating part 6, counter 7, etc., without providing a current input terminal to display unit 8. Therefore, the need of a large terminal of large calorific power is eliminated to miniaturize the wattmeter and the fault, breakdown of the wattmeter due to a defective connection, etc., of a terminal part can be prevented from occurring.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14608778A JPS5572862A (en) | 1978-11-28 | 1978-11-28 | Electronic watt-hour meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14608778A JPS5572862A (en) | 1978-11-28 | 1978-11-28 | Electronic watt-hour meter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5572862A true JPS5572862A (en) | 1980-06-02 |
Family
ID=15399825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14608778A Pending JPS5572862A (en) | 1978-11-28 | 1978-11-28 | Electronic watt-hour meter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5572862A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104769445A (en) * | 2012-03-12 | 2015-07-08 | 松下电器产业株式会社 | Power meter |
JP2016042045A (en) * | 2014-08-15 | 2016-03-31 | 日本電気計器検定所 | Test device for watthour meter |
-
1978
- 1978-11-28 JP JP14608778A patent/JPS5572862A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104769445A (en) * | 2012-03-12 | 2015-07-08 | 松下电器产业株式会社 | Power meter |
JP2016042045A (en) * | 2014-08-15 | 2016-03-31 | 日本電気計器検定所 | Test device for watthour meter |
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