JPS5572862A - Electronic watt-hour meter - Google Patents

Electronic watt-hour meter

Info

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
Application number
JP14608778A
Other languages
Japanese (ja)
Inventor
Haruo Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14608778A priority Critical patent/JPS5572862A/en
Publication of JPS5572862A publication Critical patent/JPS5572862A/en
Pending legal-status Critical Current

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
JP14608778A 1978-11-28 1978-11-28 Electronic watt-hour meter Pending JPS5572862A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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