JPS57113991A - Operating process of motor for pump - Google Patents
Operating process of motor for pumpInfo
- Publication number
- JPS57113991A JPS57113991A JP9281A JP9281A JPS57113991A JP S57113991 A JPS57113991 A JP S57113991A JP 9281 A JP9281 A JP 9281A JP 9281 A JP9281 A JP 9281A JP S57113991 A JPS57113991 A JP S57113991A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- squirrel
- controller
- wound
- rotor type
- 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
Links
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
PURPOSE: To provide operation of high efficiency using a motor of proper capacity for the existent load in such a way that an operation powr discriminating function is added to a controller, and a wound-rotor type motor with ancillary mission in starting stage is stopped to switch the operation over to a squirrel- cage motor, in normal steady operation.
CONSTITUTION: A wound-rotor type motor 5A with ancillary mission in starting stage is started by means of a controller 6 by receiving starting command from outside. When the rated rotational speed is obtained, a primary breaker 8 of a squirrel-cage motor 5B for driving in normal steady operation is closed, to open the ejection valve 2 of a high pressure pump 1. Since the rated rotational speed of the squirrel-cage motor 5B has been already obtained, there is no flow of inrush current even if starting is done by means of direct current input. Then, output is received from a power converter 9 for said two motors 5A, 5B, and the controller 6 disconnects the primary breaker 8 of the wound-rotor type motor 5A by means of operation power discriminating function of the controller 6. Thus, high efficiency operation can be obtained in normal steady operation, by means of squirrel-cage motor 5B in its proper capacity for the existent load.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9281A JPS57113991A (en) | 1981-01-06 | 1981-01-06 | Operating process of motor for pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9281A JPS57113991A (en) | 1981-01-06 | 1981-01-06 | Operating process of motor for pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57113991A true JPS57113991A (en) | 1982-07-15 |
Family
ID=11464468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9281A Pending JPS57113991A (en) | 1981-01-06 | 1981-01-06 | Operating process of motor for pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57113991A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106979148A (en) * | 2017-05-19 | 2017-07-25 | 中煤特殊凿井有限责任公司 | A kind of control method of step-less adjustment high powered water pump or fan operation |
-
1981
- 1981-01-06 JP JP9281A patent/JPS57113991A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106979148A (en) * | 2017-05-19 | 2017-07-25 | 中煤特殊凿井有限责任公司 | A kind of control method of step-less adjustment high powered water pump or fan operation |
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