ATE299243T1 - METHOD FOR OPERATING A PUMP BASED ON CURRENT ANALYSIS - Google Patents
METHOD FOR OPERATING A PUMP BASED ON CURRENT ANALYSISInfo
- Publication number
- ATE299243T1 ATE299243T1 AT02290925T AT02290925T ATE299243T1 AT E299243 T1 ATE299243 T1 AT E299243T1 AT 02290925 T AT02290925 T AT 02290925T AT 02290925 T AT02290925 T AT 02290925T AT E299243 T1 ATE299243 T1 AT E299243T1
- Authority
- AT
- Austria
- Prior art keywords
- phase
- motor
- current
- measuring
- pump
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
- F04D15/0245—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump
- F04D15/0254—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump the condition being speed or load
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
- F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
- F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
- F04D15/0236—Lack of liquid level being detected by analysing the parameters of the electric drive, e.g. current or power consumption
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Control Of Electric Motors In General (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Amplifiers (AREA)
- Measurement Of Current Or Voltage (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Flow Control (AREA)
Abstract
The motor pump includes a high liquid level sensor (6) connected to an input of a microprocessor (8) and out of phase measuring system for measuring so as to send a start signal to the motor or pump only when the sensors detects a high liquid level. An out of phase stability monitoring unit includes a system for measuring the current level and includes an intermediate liquid level sensor (7) which detects a level between high and low corresponding to motor voltage cutoff. The immersed motor/pump unit includes a pump (2) and AC motor (1) having at least a working phase and a microprocessor integrated in one of the inputs to which a supply voltage is applied and to another input from which is sent a signal representing the current absorbed in the motor phase. The microprocessor includes a system for measuring the phase difference between voltage and current. The microprocessor includes: (a) A system for continuous monitoring of the phase difference stability after it has settled at a constant value; (b) Memory for storing out of phase values, and; (c) Supply voltage cutoff switches which interrupt the supply voltage to the motor when, after out of phase is stabilized, the out of phase value, during a set time period, reaches a value greater than the stabilized value and the signal representing the absorbed current is the current passing only through the working phase.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0106106A FR2824600B1 (en) | 2001-05-09 | 2001-05-09 | MOTOR PUMP GROUP WHICH SHUT DOWN BY CURRENT ANALYSIS |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE299243T1 true ATE299243T1 (en) | 2005-07-15 |
Family
ID=8863069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT02290925T ATE299243T1 (en) | 2001-05-09 | 2002-04-12 | METHOD FOR OPERATING A PUMP BASED ON CURRENT ANALYSIS |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1256723B1 (en) |
AT (1) | ATE299243T1 (en) |
DE (1) | DE60204923T2 (en) |
DK (1) | DK1256723T3 (en) |
ES (1) | ES2246005T3 (en) |
FR (1) | FR2824600B1 (en) |
PT (1) | PT1256723E (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2860271B1 (en) * | 2003-09-30 | 2008-05-02 | Realisations Electroniques Eur | DEVICE FOR PROTECTING IMMERED PUMPS |
FR2896048B1 (en) * | 2006-01-11 | 2008-07-04 | Realisations Electroniques Eur | METHOD AND DETECTION SYSTEM FOR AN ELECTRICAL DEVICE |
FR2951267B1 (en) * | 2009-10-14 | 2011-10-28 | Peugeot Citroen Automobiles Sa | DEVICE FOR DETECTING THE LEVEL OF LIQUID IN A RESERVOIR |
DE102009053322B4 (en) | 2009-11-17 | 2019-10-17 | Endo-Technik Wolfgang Griesat Gmbh | Device for controlling the flow of a peristaltic pump |
CN203962360U (en) * | 2014-07-11 | 2014-11-26 | 君禾泵业股份有限公司 | The automatic control of pump electronic water level switch |
CN104481891B (en) * | 2014-11-27 | 2019-01-15 | 浙江富士精工科技有限公司 | Air-conditioning drainage pump |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4473338A (en) * | 1980-09-15 | 1984-09-25 | Garmong Victor H | Controlled well pump and method of analyzing well production |
US5015151A (en) * | 1989-08-21 | 1991-05-14 | Shell Oil Company | Motor controller for electrical submersible pumps |
US5833437A (en) * | 1996-07-02 | 1998-11-10 | Shurflo Pump Manufacturing Co. | Bilge pump |
-
2001
- 2001-05-09 FR FR0106106A patent/FR2824600B1/en not_active Expired - Fee Related
-
2002
- 2002-04-12 DK DK02290925T patent/DK1256723T3/en active
- 2002-04-12 DE DE60204923T patent/DE60204923T2/en not_active Expired - Lifetime
- 2002-04-12 PT PT02290925T patent/PT1256723E/en unknown
- 2002-04-12 AT AT02290925T patent/ATE299243T1/en active
- 2002-04-12 ES ES02290925T patent/ES2246005T3/en not_active Expired - Lifetime
- 2002-04-12 EP EP02290925A patent/EP1256723B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2246005T3 (en) | 2006-02-01 |
DE60204923D1 (en) | 2005-08-11 |
EP1256723A1 (en) | 2002-11-13 |
FR2824600B1 (en) | 2004-02-20 |
FR2824600A1 (en) | 2002-11-15 |
DK1256723T3 (en) | 2005-10-17 |
DE60204923T2 (en) | 2006-05-24 |
PT1256723E (en) | 2005-11-30 |
EP1256723B1 (en) | 2005-07-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification |
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