JPS5414779A - Power factor measuring method of 3-phase circuits - Google Patents

Power factor measuring method of 3-phase circuits

Info

Publication number
JPS5414779A
JPS5414779A JP7979077A JP7979077A JPS5414779A JP S5414779 A JPS5414779 A JP S5414779A JP 7979077 A JP7979077 A JP 7979077A JP 7979077 A JP7979077 A JP 7979077A JP S5414779 A JPS5414779 A JP S5414779A
Authority
JP
Japan
Prior art keywords
measuring method
power factor
phase circuits
factor measuring
equivalent power
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
JP7979077A
Other languages
Japanese (ja)
Inventor
Kazuo Kojima
Masayuki Niitsuma
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP7979077A priority Critical patent/JPS5414779A/en
Publication of JPS5414779A publication Critical patent/JPS5414779A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measuring Phase Differences (AREA)

Abstract

PURPOSE: To make possible converting equivalent power factors to d.c. voltage in a circuit manner without using any intricate measuring elements by measuring the sum of the phase angles of differential current and differential voltage between the respective two phases of a 3-phase circuit, and letting the sum of these phase angles be a measure of equivalent power factors or the phase angles corresponding to equivalent power factors.
COPYRIGHT: (C)1979,JPO&Japio
JP7979077A 1977-07-06 1977-07-06 Power factor measuring method of 3-phase circuits Pending JPS5414779A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7979077A JPS5414779A (en) 1977-07-06 1977-07-06 Power factor measuring method of 3-phase circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7979077A JPS5414779A (en) 1977-07-06 1977-07-06 Power factor measuring method of 3-phase circuits

Publications (1)

Publication Number Publication Date
JPS5414779A true JPS5414779A (en) 1979-02-03

Family

ID=13700001

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7979077A Pending JPS5414779A (en) 1977-07-06 1977-07-06 Power factor measuring method of 3-phase circuits

Country Status (1)

Country Link
JP (1) JPS5414779A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6058221U (en) * 1983-09-30 1985-04-23 東京濾器株式会社 Air cleaner element
JPS60193519A (en) * 1984-03-15 1985-10-02 Nippon Paionikusu Kk Oil removing apparatus
JPS61107916A (en) * 1984-10-30 1986-05-26 Shoketsu Kinzoku Kogyo Co Ltd Oil mist filter
JPS6377615U (en) * 1986-11-07 1988-05-23

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5145565A (en) * 1974-10-17 1976-04-19 Fuji Electric Co Ltd Sansokairono rikiritsusokuteihoho

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5145565A (en) * 1974-10-17 1976-04-19 Fuji Electric Co Ltd Sansokairono rikiritsusokuteihoho

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6058221U (en) * 1983-09-30 1985-04-23 東京濾器株式会社 Air cleaner element
JPS60193519A (en) * 1984-03-15 1985-10-02 Nippon Paionikusu Kk Oil removing apparatus
JPS61107916A (en) * 1984-10-30 1986-05-26 Shoketsu Kinzoku Kogyo Co Ltd Oil mist filter
JPS6377615U (en) * 1986-11-07 1988-05-23

Similar Documents

Publication Publication Date Title
JPS5262068A (en) Electronic watthour meter
JPS5414779A (en) Power factor measuring method of 3-phase circuits
JPS5253252A (en) Constant current circuit
NO784195L (en) PROCEDURE FOR CARRYING OUT CONNECTIONS IN A THREE-PHASE HIGH VOLTAGE CIRCUIT
JPS5441419A (en) Three-phase.two-phase power conversion transformer
JPS5385468A (en) Polyphase power detector
JPS52154055A (en) Fault point locator
JPS5440669A (en) Detector for multi-phase ac flectricity
JPS53109155A (en) Rush current tester
JPS52150674A (en) Electricity quantity measuring apparatus
JPS5357941A (en) Multiplier using hall element
JPS5429082A (en) Phase separation bus bar joint box
JPS53113739A (en) Power source apparatus of single phase direct current arc welding
JPS5388934A (en) Fault position standardizer
JPS51146272A (en) Measuring device for current, power-factor and power etc.
JPS548562A (en) Power-factor measuring circuit for 3-phase 4-wire unbalanced currents
JPS5339778A (en) Power-factor measuring circuit for three-phase four-line unbalance current
JPS531845A (en) Digital protective relay
JPS53129816A (en) Constant voltage and frequency power supply
JPS52151071A (en) Maximum value detecting apparatus of 3 phase a.c. electricity quantities
JPS53118753A (en) Reverse excitation detecting circuit
JPS5360673A (en) Converter for power-factor and dc signal
JPS5432735A (en) Lacked phase detector
JPS5376077A (en) Voltage applied current measuring circuit
JPS52141676A (en) Measuring method for output current of rectifier