JPS5458812A - Power failure restart circuit - Google Patents

Power failure restart circuit

Info

Publication number
JPS5458812A
JPS5458812A JP12515177A JP12515177A JPS5458812A JP S5458812 A JPS5458812 A JP S5458812A JP 12515177 A JP12515177 A JP 12515177A JP 12515177 A JP12515177 A JP 12515177A JP S5458812 A JPS5458812 A JP S5458812A
Authority
JP
Japan
Prior art keywords
timer
excited
power failure
preset time
contact
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
JP12515177A
Other languages
Japanese (ja)
Inventor
Toshiaki Kondo
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12515177A priority Critical patent/JPS5458812A/en
Publication of JPS5458812A publication Critical patent/JPS5458812A/en
Pending legal-status Critical Current

Links

Landscapes

  • Motor And Converter Starters (AREA)

Abstract

PURPOSE: To improve reliability by constituting a circuit by combining a timer without using an automatic restart relay be means of capacitor charge and discharge when a motor is restarted after power failure is recovered.
CONSTITUTION: An electromagnetic conractor CT is excited through the contact TR2A of a timer TR2 by closing an operation switch CS1 at start and a motor starts its operation. The electromagnetic contactor CT, timers TR1, TR2, and TR3 and auxiliary relay Z are de-excited the contact TR1A of the timer TR1 closes after the preset time. If power failure is recovered within this preset time, the auxiliary relay Z operates and a contact ZA2 closes. Accordingly the timer TR1 is re-excited and the timer TR2 operates after its preset time. The electromagne ticcontactor CT is excited and restart operation occurs. As a result, reliability can be imprvoed by timer structure only
COPYRIGHT: (C)1979,JPO&Japio
JP12515177A 1977-10-20 1977-10-20 Power failure restart circuit Pending JPS5458812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12515177A JPS5458812A (en) 1977-10-20 1977-10-20 Power failure restart circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12515177A JPS5458812A (en) 1977-10-20 1977-10-20 Power failure restart circuit

Publications (1)

Publication Number Publication Date
JPS5458812A true JPS5458812A (en) 1979-05-11

Family

ID=14903123

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12515177A Pending JPS5458812A (en) 1977-10-20 1977-10-20 Power failure restart circuit

Country Status (1)

Country Link
JP (1) JPS5458812A (en)

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