JPS55112623A - Power supply connection and disconnection unit - Google Patents

Power supply connection and disconnection unit

Info

Publication number
JPS55112623A
JPS55112623A JP1991079A JP1991079A JPS55112623A JP S55112623 A JPS55112623 A JP S55112623A JP 1991079 A JP1991079 A JP 1991079A JP 1991079 A JP1991079 A JP 1991079A JP S55112623 A JPS55112623 A JP S55112623A
Authority
JP
Japan
Prior art keywords
power supply
contact
switch
coils
excited
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
JP1991079A
Other languages
Japanese (ja)
Other versions
JPS6256731B2 (en
Inventor
Yoshihiko Tone
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 JP1991079A priority Critical patent/JPS55112623A/en
Publication of JPS55112623A publication Critical patent/JPS55112623A/en
Publication of JPS6256731B2 publication Critical patent/JPS6256731B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Power Sources (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

PURPOSE: To prevent the abnormal operation and failure of unit due to the production in momentary interruption, by disconnecting the power supply once at the production of instantaneous interruption of power supply and automatically applying the power supply through the estimate of the time when the power supply is stable.
CONSTITUTION: The power supply voltage is divided with the resistors 1 and 2, rectified at the full wave rectifier 3 and the capacitor 4 is charged. The semiconductor switch 5 is operated at the terminal voltage across C4, and the coils 6, 7, 8 of the first, second and third electromagnetic switches are excited via the delay operation brake contact 71 of the second electromagnetic switch, Even if the contact 71 is open the coils 6, 7, 8 are excited with the self hold contact 61 of the switch 6 and the power supply is fed to the computer system from the contacts 81, 82. If momentary interruption of a half cycle is happened, one cycle interruption is made with the operation threshold value of the switch 5, the contact 61 is open, the excitation to the coil 8 is eliminated, and the power supply to the systm is disconnected. The contact 71 is restored several seconds after into closing, the coils 6, 7, 8 are excited and power supply is supplied to the system.
COPYRIGHT: (C)1980,JPO&Japio
JP1991079A 1979-02-22 1979-02-22 Power supply connection and disconnection unit Granted JPS55112623A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1991079A JPS55112623A (en) 1979-02-22 1979-02-22 Power supply connection and disconnection unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1991079A JPS55112623A (en) 1979-02-22 1979-02-22 Power supply connection and disconnection unit

Publications (2)

Publication Number Publication Date
JPS55112623A true JPS55112623A (en) 1980-08-30
JPS6256731B2 JPS6256731B2 (en) 1987-11-27

Family

ID=12012361

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1991079A Granted JPS55112623A (en) 1979-02-22 1979-02-22 Power supply connection and disconnection unit

Country Status (1)

Country Link
JP (1) JPS55112623A (en)

Also Published As

Publication number Publication date
JPS6256731B2 (en) 1987-11-27

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