Title:
電動ポンプシステム
Document Type and Number:
Japanese Patent JP7293916
Kind Code:
B2
Abstract:
To provide an electric pump system capable of early detecting that an electric pump is out of order.SOLUTION: An electric pump system 100 comprises a control circuit unit 81a that operates submersible electric pumps 3a and 3b alternately, and based on the fact that operation of any one of the submersible electric pumps 3a and 3b has stopped, detects an insulation resistance R1 of the submersible electric pump 3a and an insulation resistance R2 of the submersible electric pump 3b by an insulation resistance detection unit 83.SELECTED DRAWING: Figure 3
Inventors:
Tsuyoshi Suzuki
Application Number:
JP2019121744A
Publication Date:
June 20, 2023
Filing Date:
June 28, 2019
Export Citation:
Assignee:
Tsurumi Manufacturing Co., Ltd.
International Classes:
F04D15/00; G01R31/34
Domestic Patent References:
| JP8201469A | ||||
| JP2017145746A | ||||
| JP61034485U | ||||
| JP5061488U | ||||
| JP2008102096A | ||||
| JP2017173176A | ||||
| JP6043195A | ||||
| JP2004251689A |
Attorney, Agent or Firm:
Hirokazu Miyazono
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