JPS5612876A - Capacitor motor - Google Patents
Capacitor motorInfo
- Publication number
- JPS5612876A JPS5612876A JP8643379A JP8643379A JPS5612876A JP S5612876 A JPS5612876 A JP S5612876A JP 8643379 A JP8643379 A JP 8643379A JP 8643379 A JP8643379 A JP 8643379A JP S5612876 A JPS5612876 A JP S5612876A
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- turned
- voltage
- capacitor
- motor
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/42—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor
- H02P1/44—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor by phase-splitting with a capacitor
- H02P1/445—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor by phase-splitting with a capacitor by using additional capacitors switched at start up
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
Abstract
PURPOSE:To improve the reliability of a capacitor motor in operation and the reduction of power consumption by turning on or off a semiconductor switching element with a signal electrically detecting the conduting state to switch the capacitor capacity at starting time and after acceleration. CONSTITUTION:Since a transistor Tr6 is turned on with its base voltage lowered while a transistor Tr5 is turned off when starting a capacitor motor, a transistor Tr8 is turned on to conduct is thyristor S. Accordingly, an auxiliary winding A is connected to phase dividing and starting capacitors CR and CS. When the motor speed is raised to cause the potential across the winding A to become high so that the detected voltage by a detector 1 exceeds set voltage of constant-voltage diode 9, a current flows through the base of the transistor Tr5 to conduct the Tr5 while turn off the Tr6. Accordingly, the gate signal of the thyristor S is eliminated, and it is thereafter turned off in half cycle of applied AC voltage to automatically isolate only the capacitor CS. In this manner it can improve the reliability in operation of the motor and reduce the power consumption.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8643379A JPS5612876A (en) | 1979-07-10 | 1979-07-10 | Capacitor motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8643379A JPS5612876A (en) | 1979-07-10 | 1979-07-10 | Capacitor motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5612876A true JPS5612876A (en) | 1981-02-07 |
Family
ID=13886766
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8643379A Pending JPS5612876A (en) | 1979-07-10 | 1979-07-10 | Capacitor motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5612876A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6110977A (en) * | 1984-06-25 | 1986-01-18 | Mitsubishi Electric Corp | Capacitor motor |
JP2002374688A (en) * | 2001-06-14 | 2002-12-26 | Shin Meiwa Ind Co Ltd | Submergible pump and control method therefor |
-
1979
- 1979-07-10 JP JP8643379A patent/JPS5612876A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6110977A (en) * | 1984-06-25 | 1986-01-18 | Mitsubishi Electric Corp | Capacitor motor |
JP2002374688A (en) * | 2001-06-14 | 2002-12-26 | Shin Meiwa Ind Co Ltd | Submergible pump and control method therefor |
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