JPS57151100A - Electric well pump - Google Patents
Electric well pumpInfo
- Publication number
- JPS57151100A JPS57151100A JP3536881A JP3536881A JPS57151100A JP S57151100 A JPS57151100 A JP S57151100A JP 3536881 A JP3536881 A JP 3536881A JP 3536881 A JP3536881 A JP 3536881A JP S57151100 A JPS57151100 A JP S57151100A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- motor
- switch
- thermo
- pump function
- 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
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
- F04D15/0263—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump the condition being temperature, ingress of humidity or leakage
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
PURPOSE:To ensure preservation of pump function by catching abnormal temperature rise of the pump on the surface of a capacitor in a power supply box and opening an electric circuit just before the capacitor temperature reaches the level at which the dielectric loss tangent varies. CONSTITUTION:A capacitor 130 and relay 120 for preventing a motor from seizure are accommodated in a power supply box 3, and a thermo-switch 160 is housed in a thermo switch housing recess 40 located above the capacitor 130. For example, when overcurrent supposed to occur in case of a lock of a motor 1 or the like flows and just before the capacitor 130 temperature reaches the level at which the dielectric loss tangent varies, a relay 120 for preventing the motor from seizure is operated to cut an electric circuit for protecting the pump function. Next, when contacts are not opened because of failure of a pressure switch 19 although the predetermined pressure is reached, and temperature of each portion rises abnormally because of sealed operation or the like, the thermo switch 160 is operated to open the contacts, cut the circuit and stop the operation similarly for ensuring preservation of the pump function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3536881A JPS57151100A (en) | 1981-03-13 | 1981-03-13 | Electric well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3536881A JPS57151100A (en) | 1981-03-13 | 1981-03-13 | Electric well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57151100A true JPS57151100A (en) | 1982-09-18 |
Family
ID=12439951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3536881A Pending JPS57151100A (en) | 1981-03-13 | 1981-03-13 | Electric well pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57151100A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261340A (en) * | 2010-05-28 | 2011-11-30 | 贵州大学 | Method and device for protecting running of water pump |
| JP2020020336A (en) * | 2018-07-23 | 2020-02-06 | 株式会社荏原製作所 | Water supply device |
-
1981
- 1981-03-13 JP JP3536881A patent/JPS57151100A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261340A (en) * | 2010-05-28 | 2011-11-30 | 贵州大学 | Method and device for protecting running of water pump |
| JP2020020336A (en) * | 2018-07-23 | 2020-02-06 | 株式会社荏原製作所 | Water supply device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2981195A (en) | Fluid flow motor control | |
| US4234819A (en) | Underwater light circuit and installation | |
| US4871924A (en) | Safety power receptacle with hot wire switch-through | |
| JPS57151100A (en) | Electric well pump | |
| US2975347A (en) | Liquid level control system | |
| US2972708A (en) | Protective means for submersible pump-motors | |
| US1475313A (en) | Circuit controller | |
| CN108899875B (en) | Motor starting protector with double protection functions | |
| JPS57122183A (en) | Electric well pump | |
| EP0450846A2 (en) | Power source circuit for microwave oven | |
| GB1426589A (en) | Circuit breaker with barrier | |
| CA1171460A (en) | Capacitor unit with a discharge resistor switch | |
| EP1109264B1 (en) | Terminal protector for multipolar electrical devices | |
| SU829979A1 (en) | Explosion-proof self-sustained power source | |
| DE3464176D1 (en) | Protective fault-current switch or protective circuit breaker with a switch for a neutral conductor | |
| JPS57179387A (en) | Electric well pump | |
| JPS6316591B2 (en) | ||
| FR2353258A1 (en) | Electrical household appliance - has lead connection closing opening in housing | |
| JPS5598683A (en) | Package type compressor | |
| CA1101507A (en) | Electrical junction box and method of making the same | |
| AU8363382A (en) | Starter circuit arrangement | |
| SU940265A1 (en) | Electric connector | |
| KR890002776Y1 (en) | Self-interrupters of electrolytic capacitor | |
| SU1738858A1 (en) | Beet cutter with device for drive interlock | |
| GB1287821A (en) |