FIELD: controlling submersible motor-driven pump by means of electric-contact pressure gage.
SUBSTANCE: proposed relay-type device makes use of electric-contact pressure gage mounted on pipeline feeding water to gravity tank for automatic control of submersible motor-driven pump. The latter is energized in response to closure of low-pressure level contact of electric-contact pressure gage and is accordingly deenergized when high-pressure level contact closes. Time relay inserted in circuits passing control signal from electric-contact pressure gage functions to protect motor-driven pump against unwanted closing and opening of its power circuit on operation of electric-contact pressure gage due to water hammers. Only one time relay is used in circuit for on- and off-operation signals.
EFFECT: simplified design.
1 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| AUTOMATIC CONTROL DEVICE FOR SUBMERSIBLE PUMP MOTOR | 2003 |
|
RU2248654C1 |
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| DEVICE FOR REMOTE CONTROL OF PUMP UNIT | 2019 |
|
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| DEVICE FOR AUTOMATIC CONTROL OF ELECTRICALLY DRIVEN PUMP UNIT | 2010 |
|
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|
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| DEVICE FOR EMERGENCY-DUTY PROTECTION OF INDUCTION MOTOR | 0 |
|
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|
SU1377952A1 |
