JPS53109140A - Momentary power-interruption detector device - Google Patents

Momentary power-interruption detector device

Info

Publication number
JPS53109140A
JPS53109140A JP2265677A JP2265677A JPS53109140A JP S53109140 A JPS53109140 A JP S53109140A JP 2265677 A JP2265677 A JP 2265677A JP 2265677 A JP2265677 A JP 2265677A JP S53109140 A JPS53109140 A JP S53109140A
Authority
JP
Japan
Prior art keywords
momentary power
detector device
interruption detector
change
interruption
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
JP2265677A
Other languages
Japanese (ja)
Inventor
Toshiaki Okuyama
Yuzuru Kubota
Hiroshi Nagase
Katsunori Suzuki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2265677A priority Critical patent/JPS53109140A/en
Publication of JPS53109140A publication Critical patent/JPS53109140A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To detect momentary power-interruption and increased distortion in voltage wave of an AC power source by providing a change detection circuit for producing an output signal in accordance with the secondary current change in a wound-rotor type induction machine and utilizing said change exceeding predetermined value.
COPYRIGHT: (C)1978,JPO&Japio
JP2265677A 1977-03-04 1977-03-04 Momentary power-interruption detector device Pending JPS53109140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2265677A JPS53109140A (en) 1977-03-04 1977-03-04 Momentary power-interruption detector device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2265677A JPS53109140A (en) 1977-03-04 1977-03-04 Momentary power-interruption detector device

Publications (1)

Publication Number Publication Date
JPS53109140A true JPS53109140A (en) 1978-09-22

Family

ID=12088874

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2265677A Pending JPS53109140A (en) 1977-03-04 1977-03-04 Momentary power-interruption detector device

Country Status (1)

Country Link
JP (1) JPS53109140A (en)

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