JPS5392902A - Pump gear - Google Patents

Pump gear

Info

Publication number
JPS5392902A
JPS5392902A JP588577A JP588577A JPS5392902A JP S5392902 A JPS5392902 A JP S5392902A JP 588577 A JP588577 A JP 588577A JP 588577 A JP588577 A JP 588577A JP S5392902 A JPS5392902 A JP S5392902A
Authority
JP
Japan
Prior art keywords
pump gear
prevent
transformer
well
secondary side
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
JP588577A
Other languages
Japanese (ja)
Inventor
Shigetomo Yoshihara
Akira Maejima
Takao Shibata
Naoaki Tejima
Makoto Hisada
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 JP588577A priority Critical patent/JPS5392902A/en
Publication of JPS5392902A publication Critical patent/JPS5392902A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

PURPOSE: To prevent danger on an electric leakage as well as to prevent electric shock accidents during trouble shooting, by arranging various detectors on the secondary side of a transformer.
COPYRIGHT: (C)1978,JPO&Japio
JP588577A 1977-01-24 1977-01-24 Pump gear Pending JPS5392902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP588577A JPS5392902A (en) 1977-01-24 1977-01-24 Pump gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP588577A JPS5392902A (en) 1977-01-24 1977-01-24 Pump gear

Publications (1)

Publication Number Publication Date
JPS5392902A true JPS5392902A (en) 1978-08-15

Family

ID=11623343

Family Applications (1)

Application Number Title Priority Date Filing Date
JP588577A Pending JPS5392902A (en) 1977-01-24 1977-01-24 Pump gear

Country Status (1)

Country Link
JP (1) JPS5392902A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61283793A (en) * 1985-06-10 1986-12-13 Yashima Denki Kk Well pump controller
JPS6229795A (en) * 1985-07-31 1987-02-07 Matsushita Electric Ind Co Ltd Pump protector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61283793A (en) * 1985-06-10 1986-12-13 Yashima Denki Kk Well pump controller
JPS6229795A (en) * 1985-07-31 1987-02-07 Matsushita Electric Ind Co Ltd Pump protector

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