JPS52151071A - Maximum value detecting apparatus of 3 phase a.c. electricity quantities - Google Patents

Maximum value detecting apparatus of 3 phase a.c. electricity quantities

Info

Publication number
JPS52151071A
JPS52151071A JP6827276A JP6827276A JPS52151071A JP S52151071 A JPS52151071 A JP S52151071A JP 6827276 A JP6827276 A JP 6827276A JP 6827276 A JP6827276 A JP 6827276A JP S52151071 A JPS52151071 A JP S52151071A
Authority
JP
Japan
Prior art keywords
phase
maximum value
detecting apparatus
value detecting
electricity quantities
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
JP6827276A
Other languages
Japanese (ja)
Inventor
Masaru Toyoda
Kenji Shibata
Shuhei Shinno
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP6827276A priority Critical patent/JPS52151071A/en
Publication of JPS52151071A publication Critical patent/JPS52151071A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

PURPOSE: To detect the maximum values of current, voltage, etc. within a minimum time by subsequently operating 3-phase a.c. electricity quantities through first to fifth arithmetic circuits.
COPYRIGHT: (C)1977,JPO&Japio
JP6827276A 1976-06-10 1976-06-10 Maximum value detecting apparatus of 3 phase a.c. electricity quantities Pending JPS52151071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6827276A JPS52151071A (en) 1976-06-10 1976-06-10 Maximum value detecting apparatus of 3 phase a.c. electricity quantities

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6827276A JPS52151071A (en) 1976-06-10 1976-06-10 Maximum value detecting apparatus of 3 phase a.c. electricity quantities

Publications (1)

Publication Number Publication Date
JPS52151071A true JPS52151071A (en) 1977-12-15

Family

ID=13368945

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6827276A Pending JPS52151071A (en) 1976-06-10 1976-06-10 Maximum value detecting apparatus of 3 phase a.c. electricity quantities

Country Status (1)

Country Link
JP (1) JPS52151071A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07181207A (en) * 1993-05-21 1995-07-21 Hiroshi Yokose Method of measuring instantaneous value of multi-phase ac voltage

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4825676A (en) * 1971-08-06 1973-04-03

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4825676A (en) * 1971-08-06 1973-04-03

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07181207A (en) * 1993-05-21 1995-07-21 Hiroshi Yokose Method of measuring instantaneous value of multi-phase ac voltage

Similar Documents

Publication Publication Date Title
JPS5375828A (en) Semiconductor circuit
JPS52135797A (en) Apparatus for detecting phase change of liquid
JPS5229938A (en) Detection apparatus for the operation of electric machiens
JPS5346785A (en) Phase discriminator circuit
JPS52151071A (en) Maximum value detecting apparatus of 3 phase a.c. electricity quantities
JPS52154055A (en) Fault point locator
JPS5319080A (en) Speed detector
JPS5315169A (en) 3-phase ac detection circuit
JPS53804A (en) Failure detector for rotary rectifier
JPS5357878A (en) Peak value detector
JPS51129643A (en) Load-current/phase-lack detecting circuit for three-phase circuit
JPS52112138A (en) High frequency heater
JPS5284439A (en) Ac load broken line detector
JPS52104277A (en) Phase detection circuit
JPS5376444A (en) Arc power detecting system for each phase in three-phase arc furnace
JPS5288747A (en) Protecting system for inverter
JPS5341745A (en) Overcurrent protector for intermittent load
JPS5279192A (en) Sequence controller which enables fault detection of output element
JPS5314320A (en) Detector of inverter operating condition
JPS51133740A (en) Disconnection detection system
JPS5389949A (en) Power source anomalousness detector for rotary machine
JPS52127273A (en) Step-out detector for synchronous motor
JPS5237758A (en) Phase discrimination circuit
JPS5298957A (en) Interrupter for wiring
JPS51116926A (en) D.c. converter