JPS53120151A - Watching system of ac power supply - Google Patents

Watching system of ac power supply

Info

Publication number
JPS53120151A
JPS53120151A JP3581877A JP3581877A JPS53120151A JP S53120151 A JPS53120151 A JP S53120151A JP 3581877 A JP3581877 A JP 3581877A JP 3581877 A JP3581877 A JP 3581877A JP S53120151 A JPS53120151 A JP S53120151A
Authority
JP
Japan
Prior art keywords
power supply
watching system
limit
power
watching
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
JP3581877A
Other languages
Japanese (ja)
Inventor
Shoichi Abe
Shunichi Yorimitsu
Shunetsu Takei
Masayoshi Kawai
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.)
NEC Corp
Nippon Telegraph and Telephone Corp
Original Assignee
NEC Corp
Nippon Telegraph and Telephone Corp
Nippon 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 NEC Corp, Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP3581877A priority Critical patent/JPS53120151A/en
Publication of JPS53120151A publication Critical patent/JPS53120151A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To improve an accuracy of a non-stop power supply, by detecting an upper or lower limit of AC power supply and forcing to cut a feed of power to the power supply in a case over the limit, to insure a switching of the power supply to a DC-AC invertor.
COPYRIGHT: (C)1978,JPO&Japio
JP3581877A 1977-03-29 1977-03-29 Watching system of ac power supply Pending JPS53120151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3581877A JPS53120151A (en) 1977-03-29 1977-03-29 Watching system of ac power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3581877A JPS53120151A (en) 1977-03-29 1977-03-29 Watching system of ac power supply

Publications (1)

Publication Number Publication Date
JPS53120151A true JPS53120151A (en) 1978-10-20

Family

ID=12452512

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3581877A Pending JPS53120151A (en) 1977-03-29 1977-03-29 Watching system of ac power supply

Country Status (1)

Country Link
JP (1) JPS53120151A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5911713A (en) * 1982-07-09 1984-01-21 三洋電機株式会社 Abnormality voltage protecting device
JPS6035965A (en) * 1983-08-04 1985-02-23 Meidensha Electric Mfg Co Ltd Controller for inverter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5911713A (en) * 1982-07-09 1984-01-21 三洋電機株式会社 Abnormality voltage protecting device
JPS6035965A (en) * 1983-08-04 1985-02-23 Meidensha Electric Mfg Co Ltd Controller for inverter

Similar Documents

Publication Publication Date Title
JPS5367826A (en) Boosting circuit
JPS53120151A (en) Watching system of ac power supply
JPS5310815A (en) Inverter device
JPS5316831A (en) Control method for inverter
JPS5216647A (en) Protection device for excess voltage
JPS52153612A (en) Booster
JPS5214855A (en) Ac load start regulating device
JPS5270321A (en) Invertor
JPS51150863A (en) Control device for an ultrasonic humidifier
JPS53120127A (en) Operation control device for synchronous machine
JPS53148730A (en) Power interruption compensation system in combustion control system
JPS5231358A (en) Constant power supplying device
JPS53128737A (en) Ac power supply system
JPS5287622A (en) Stopping method for invertor device
JPS5430677A (en) Disposer
JPS53117128A (en) Heater control circuit for auto-choke
JPS5313150A (en) Grounding device
JPS53137049A (en) Automatic welding system
JPS52140831A (en) Surge absorption circuit for power converter
JPS51122584A (en) Feed device in a sandwitch-like plaster packing
JPS5426416A (en) Controller for thyristor leonard
JPS53118966A (en) Delay timer circuit
JPS52106231A (en) Crosscall system for computer non-service interruption power source un it
JPS5354755A (en) Power source connecting system
JPS5385391A (en) Big current supply system