JPS5572678A - Preventive system abnormal operation of pump - Google Patents

Preventive system abnormal operation of pump

Info

Publication number
JPS5572678A
JPS5572678A JP14411078A JP14411078A JPS5572678A JP S5572678 A JPS5572678 A JP S5572678A JP 14411078 A JP14411078 A JP 14411078A JP 14411078 A JP14411078 A JP 14411078A JP S5572678 A JPS5572678 A JP S5572678A
Authority
JP
Japan
Prior art keywords
relay
motor
pump
uct
timer
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
JP14411078A
Inventor
Keiji Wakai
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP14411078A priority Critical patent/JPS5572678A/en
Publication of JPS5572678A publication Critical patent/JPS5572678A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To prevent an abnormal operation of pump by a system wherein the pump is shut down through a simple circuit comprising an under-current relay, a timer circuit, a counter circuit, etc. when primary current of a motor detected first becomes lower than a set point or pulsative.
CONSTITUTION: A motor is checked for primary current with an undercurrent relay UC, which is actuated for occurrence of undercurrent. If this condition lasts longer than a time set on timer UCT, the coil of a main contactor 88 for motor operation is turned off by a contact UCT-b of the timer UCT. Then, where an input current is pulsative, the undercurrent relay UC repeats ON/OFF operation. The number of times for repetition is counted on an electromagnetic counter 6 and where it exceeds a set number of times, a tripping relay is excited, the main contactor 88 is turned off by a contact UCC-b of a tripping relay UCC to stop the motor 1, thus preventing an abnormal operation.
COPYRIGHT: (C)1980,JPO&Japio
JP14411078A 1978-11-24 1978-11-24 Preventive system abnormal operation of pump Pending JPS5572678A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14411078A JPS5572678A (en) 1978-11-24 1978-11-24 Preventive system abnormal operation of pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14411078A JPS5572678A (en) 1978-11-24 1978-11-24 Preventive system abnormal operation of pump

Publications (1)

Publication Number Publication Date
JPS5572678A true JPS5572678A (en) 1980-05-31

Family

ID=15354411

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14411078A Pending JPS5572678A (en) 1978-11-24 1978-11-24 Preventive system abnormal operation of pump

Country Status (1)

Country Link
JP (1) JPS5572678A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5076763A (en) * 1984-12-31 1991-12-31 Rule Industries, Inc. Pump control responsive to timer, delay circuit and motor current
US5324170A (en) * 1984-12-31 1994-06-28 Rule Industries, Inc. Pump control apparatus and method
US5549456A (en) * 1994-07-27 1996-08-27 Rule Industries, Inc. Automatic pump control system with variable test cycle initiation frequency
US9371829B2 (en) 2003-12-08 2016-06-21 Pentair Water Pool And Spa, Inc. Pump controller system and method
US9404500B2 (en) 2004-08-26 2016-08-02 Pentair Water Pool And Spa, Inc. Control algorithm of variable speed pumping system
US9551344B2 (en) 2004-08-26 2017-01-24 Pentair Water Pool And Spa, Inc. Anti-entrapment and anti-dead head function
US9568005B2 (en) 2010-12-08 2017-02-14 Pentair Water Pool And Spa, Inc. Discharge vacuum relief valve for safety vacuum release system
US9726184B2 (en) 2008-10-06 2017-08-08 Pentair Water Pool And Spa, Inc. Safety vacuum release system
US9777733B2 (en) 2004-08-26 2017-10-03 Pentair Water Pool And Spa, Inc. Flow control
US9885360B2 (en) 2012-10-25 2018-02-06 Pentair Flow Technologies, Llc Battery backup sump pump systems and methods
US9932984B2 (en) 2004-08-26 2018-04-03 Pentair Water Pool And Spa, Inc. Pumping system with power optimization
US10240604B2 (en) 2004-08-26 2019-03-26 Pentair Water Pool And Spa, Inc. Pumping system with housing and user interface

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5324170A (en) * 1984-12-31 1994-06-28 Rule Industries, Inc. Pump control apparatus and method
US5076763A (en) * 1984-12-31 1991-12-31 Rule Industries, Inc. Pump control responsive to timer, delay circuit and motor current
US5549456A (en) * 1994-07-27 1996-08-27 Rule Industries, Inc. Automatic pump control system with variable test cycle initiation frequency
US10409299B2 (en) 2003-12-08 2019-09-10 Pentair Water Pool And Spa, Inc. Pump controller system and method
US9371829B2 (en) 2003-12-08 2016-06-21 Pentair Water Pool And Spa, Inc. Pump controller system and method
US9399992B2 (en) 2003-12-08 2016-07-26 Pentair Water Pool And Spa, Inc. Pump controller system and method
US10241524B2 (en) 2003-12-08 2019-03-26 Pentair Water Pool And Spa, Inc. Pump controller system and method
US10289129B2 (en) 2003-12-08 2019-05-14 Pentair Water Pool And Spa, Inc. Pump controller system and method
US10416690B2 (en) 2003-12-08 2019-09-17 Pentair Water Pool And Spa, Inc. Pump controller system and method
US9777733B2 (en) 2004-08-26 2017-10-03 Pentair Water Pool And Spa, Inc. Flow control
US9605680B2 (en) 2004-08-26 2017-03-28 Pentair Water Pool And Spa, Inc. Control algorithm of variable speed pumping system
US9551344B2 (en) 2004-08-26 2017-01-24 Pentair Water Pool And Spa, Inc. Anti-entrapment and anti-dead head function
US9932984B2 (en) 2004-08-26 2018-04-03 Pentair Water Pool And Spa, Inc. Pumping system with power optimization
US10240604B2 (en) 2004-08-26 2019-03-26 Pentair Water Pool And Spa, Inc. Pumping system with housing and user interface
US10240606B2 (en) 2004-08-26 2019-03-26 Pentair Water Pool And Spa, Inc. Pumping system with two way communication
US9404500B2 (en) 2004-08-26 2016-08-02 Pentair Water Pool And Spa, Inc. Control algorithm of variable speed pumping system
US10415569B2 (en) 2004-08-26 2019-09-17 Pentair Water Pool And Spa, Inc. Flow control
US9726184B2 (en) 2008-10-06 2017-08-08 Pentair Water Pool And Spa, Inc. Safety vacuum release system
US9568005B2 (en) 2010-12-08 2017-02-14 Pentair Water Pool And Spa, Inc. Discharge vacuum relief valve for safety vacuum release system
US9885360B2 (en) 2012-10-25 2018-02-06 Pentair Flow Technologies, Llc Battery backup sump pump systems and methods

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