Nothing Special   »   [go: up one dir, main page]

JPS55101785A - Controlling method for parallel running of pump by time limit relay - Google Patents

Controlling method for parallel running of pump by time limit relay

Info

Publication number
JPS55101785A
JPS55101785A JP4943878A JP4943878A JPS55101785A JP S55101785 A JPS55101785 A JP S55101785A JP 4943878 A JP4943878 A JP 4943878A JP 4943878 A JP4943878 A JP 4943878A JP S55101785 A JPS55101785 A JP S55101785A
Authority
JP
Japan
Prior art keywords
pump
pumps
started
operated
starting
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
JP4943878A
Other languages
Japanese (ja)
Inventor
Hiroshi Kato
Keizo Shinkai
Shozo Yuge
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.)
TAKASAGO IRON WORKS
Takasago Tekko KK
Original Assignee
TAKASAGO IRON WORKS
Takasago Tekko KK
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 TAKASAGO IRON WORKS, Takasago Tekko KK filed Critical TAKASAGO IRON WORKS
Priority to JP4943878A priority Critical patent/JPS55101785A/en
Publication of JPS55101785A publication Critical patent/JPS55101785A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE: To make possible to omit a detector and a detecting circuit to detect the conditions of stopping succeedingly operated pumps by starting the succeedingly operated pumps when their starting conditions are detected and running them for a certain time by time limit relays.
CONSTITUTION: Pumps which are operated succeedingly are started when their starting conditions are detected and operated continuously for a certain time by time limit relays TLR. When there are more than two pumps, the circuit of a pump started after the second pump is constructed so that it can be started by detecting its starting condition with just the same starting condition detector as that of a pump started immediately before during a period from the time when a certain time has passed after the pump started just before was started to the time when it is stopped. By so doing, a detector to detect stopping conditions is not required and plural pumps can be controlled with only one starting condition detector increasing or decreasing the number of operated pumps as required, therefore, the construction of this system can be simplified and the costs can be reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP4943878A 1978-04-25 1978-04-25 Controlling method for parallel running of pump by time limit relay Pending JPS55101785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4943878A JPS55101785A (en) 1978-04-25 1978-04-25 Controlling method for parallel running of pump by time limit relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4943878A JPS55101785A (en) 1978-04-25 1978-04-25 Controlling method for parallel running of pump by time limit relay

Publications (1)

Publication Number Publication Date
JPS55101785A true JPS55101785A (en) 1980-08-04

Family

ID=12831106

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4943878A Pending JPS55101785A (en) 1978-04-25 1978-04-25 Controlling method for parallel running of pump by time limit relay

Country Status (1)

Country Link
JP (1) JPS55101785A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57120782U (en) * 1981-01-20 1982-07-27

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57120782U (en) * 1981-01-20 1982-07-27

Similar Documents

Publication Publication Date Title
JPS52119836A (en) Calculator control system
JPS55101785A (en) Controlling method for parallel running of pump by time limit relay
JPS51126646A (en) Elevator control system
JPS5353166A (en) Water discharge control system for totally automatic washing machine
JPS535388A (en) Bus running control system
JPS53106420A (en) Detector system for commutation faulure
JPS53127246A (en) Control program check system
JPS5264781A (en) Escalator
JPS5267714A (en) Motor start control system
JPS5433989A (en) Self cheque nechanism for anti-sid controller
JPS5344903A (en) Pumping apparatus
JPS5291253A (en) Apparatus for detecting abnormal condition of elevator
JPS51150046A (en) Setting up detecting relay device
JPS5373335A (en) Relay system for detecting departure from harmony
JPS5274792A (en) Abnormality detector of anti skid controller
JPS5793670A (en) Protecting method for engine and its accessories
JPS522787A (en) Solvent extracting method and its device
JPS5549703A (en) Detection unit
JPS5391247A (en) Elevator operation system
JPS53133349A (en) Terminal control unit for central control unit at fault occurrence time
JPS54110421A (en) Chopper controller
JPS5340843A (en) Detector for step-out
JPS52122431A (en) Load control unit of machine provided with printer
JPS51120146A (en) System for detecting abnormalities of central processing unit
JPS55156875A (en) Fault detecting circuit for motor speed controller