JPS5575652A - Watt-hour meter for a number of housings - Google Patents
Watt-hour meter for a number of housingsInfo
- Publication number
- JPS5575652A JPS5575652A JP14893778A JP14893778A JPS5575652A JP S5575652 A JPS5575652 A JP S5575652A JP 14893778 A JP14893778 A JP 14893778A JP 14893778 A JP14893778 A JP 14893778A JP S5575652 A JPS5575652 A JP S5575652A
- Authority
- JP
- Japan
- Prior art keywords
- current
- voltage
- watt
- fed
- detected
- 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 reduce the installation space of watt-hour meters and to make small the size of cubicles, by replacing the voltage coil in common use with a plurality of watt-hour meters into one pulse width modulator.
CONSTITUTION: The voltage of the common power supply 31 fed to the loads, 32W 34 is detected with the transformer 35 and the pulse signal having the width in proportion to the instant value of the detected voltage is obtained from the modulator 36. On the other hand, the current of the loads 32W34 is detected from the transformers 37W39, this current signal is fed to the current frequency converters 43W45 via the switches 40W42. Specified integration is made and the frequency proportional to power is outputted and fed to the display units 49W51 via the frequency dividers 46W48. In this case, the output pulse of the modulator 36 controls the switches 40W42 and the current output Io of each switch takes the value proportional to the instant voltage and current of each load.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14893778A JPS5575652A (en) | 1978-12-01 | 1978-12-01 | Watt-hour meter for a number of housings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14893778A JPS5575652A (en) | 1978-12-01 | 1978-12-01 | Watt-hour meter for a number of housings |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5575652A true JPS5575652A (en) | 1980-06-07 |
Family
ID=15463986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14893778A Pending JPS5575652A (en) | 1978-12-01 | 1978-12-01 | Watt-hour meter for a number of housings |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5575652A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5924261A (en) * | 1982-07-29 | 1984-02-07 | リウ・ユンホ− | Separation type electric energy meter |
JPS6061667U (en) * | 1983-10-04 | 1985-04-30 | 東京電力株式会社 | Socket type power measurement device |
CN102317797A (en) * | 2009-08-07 | 2012-01-11 | 路特克股份有限公司 | Multi-line power-measuring system which improves efficiency and simplicity |
-
1978
- 1978-12-01 JP JP14893778A patent/JPS5575652A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5924261A (en) * | 1982-07-29 | 1984-02-07 | リウ・ユンホ− | Separation type electric energy meter |
JPS6061667U (en) * | 1983-10-04 | 1985-04-30 | 東京電力株式会社 | Socket type power measurement device |
CN102317797A (en) * | 2009-08-07 | 2012-01-11 | 路特克股份有限公司 | Multi-line power-measuring system which improves efficiency and simplicity |
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