JPS5676055A - Electronic type wattmeter - Google Patents

Electronic type wattmeter

Info

Publication number
JPS5676055A
JPS5676055A JP15342979A JP15342979A JPS5676055A JP S5676055 A JPS5676055 A JP S5676055A JP 15342979 A JP15342979 A JP 15342979A JP 15342979 A JP15342979 A JP 15342979A JP S5676055 A JPS5676055 A JP S5676055A
Authority
JP
Japan
Prior art keywords
circuit
current
supplied
circuits
voltage range
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.)
Granted
Application number
JP15342979A
Other languages
Japanese (ja)
Other versions
JPS631814B2 (en
Inventor
Yoshinobu Ueda
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.)
OSAKI DENKI KOGYO KK
Osaki Electric Co Ltd
Original Assignee
OSAKI DENKI KOGYO KK
Osaki 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 OSAKI DENKI KOGYO KK, Osaki Electric Co Ltd filed Critical OSAKI DENKI KOGYO KK
Priority to JP15342979A priority Critical patent/JPS5676055A/en
Publication of JPS5676055A publication Critical patent/JPS5676055A/en
Publication of JPS631814B2 publication Critical patent/JPS631814B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

PURPOSE: To surely actuate corresponding breakers and to have it retain a current limiting function by a method wherein in a distribution system, every time a load current exceeds multistage rated values, corresponding breaking currents are transmitted.
CONSTITUTION: An electric power is detected in a circuit 5 based on a load voltage V and a load current I and this is converted into a frequency 6 and thereafter, it is displayed in a counter 8 as an electric energy. And further, from a detection power, an AC current is introduced through a circuit 9 and it is rectified through a circuit 10. It is supplied to current time limiting circuits 12W16 according to each given value and to a circuit 11 which identifies and specifies a voltage range corresponding to circuits 12W16. A trigger circiut 18 is actuated by means of any one of each time limiting circuit 12W16 and the pulse width of the trigger signal output from the circuit 18 is modulated through the circuit 19 in corresponding to the voltage range specified from the identification circuit 11 and passes through an outpt circuit 20 and supplied as breaking signals P1WP5 to the corresponding breakers.
COPYRIGHT: (C)1981,JPO&Japio
JP15342979A 1979-11-27 1979-11-27 Electronic type wattmeter Granted JPS5676055A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15342979A JPS5676055A (en) 1979-11-27 1979-11-27 Electronic type wattmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15342979A JPS5676055A (en) 1979-11-27 1979-11-27 Electronic type wattmeter

Publications (2)

Publication Number Publication Date
JPS5676055A true JPS5676055A (en) 1981-06-23
JPS631814B2 JPS631814B2 (en) 1988-01-14

Family

ID=15562314

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15342979A Granted JPS5676055A (en) 1979-11-27 1979-11-27 Electronic type wattmeter

Country Status (1)

Country Link
JP (1) JPS5676055A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5986618U (en) * 1982-12-03 1984-06-12 エヌオーケー株式会社 Breaker circuit selection type breaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5986618U (en) * 1982-12-03 1984-06-12 エヌオーケー株式会社 Breaker circuit selection type breaker

Also Published As

Publication number Publication date
JPS631814B2 (en) 1988-01-14

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