JPS5421515A - Rotation switching system - Google Patents
Rotation switching systemInfo
- Publication number
- JPS5421515A JPS5421515A JP8644877A JP8644877A JPS5421515A JP S5421515 A JPS5421515 A JP S5421515A JP 8644877 A JP8644877 A JP 8644877A JP 8644877 A JP8644877 A JP 8644877A JP S5421515 A JPS5421515 A JP S5421515A
- Authority
- JP
- Japan
- Prior art keywords
- power source
- switching system
- rotation switching
- switching
- low frequency
- 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
Abstract
PURPOSE: To make shockless when switching from low frequency power source equipment to commercial power source, by lightening load and gradually increasing the frequency of low frequency power source equipment then accelerating the motor smoothly and switching to commercial power source.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8644877A JPS5421515A (en) | 1977-07-18 | 1977-07-18 | Rotation switching system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8644877A JPS5421515A (en) | 1977-07-18 | 1977-07-18 | Rotation switching system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5421515A true JPS5421515A (en) | 1979-02-17 |
Family
ID=13887200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8644877A Pending JPS5421515A (en) | 1977-07-18 | 1977-07-18 | Rotation switching system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5421515A (en) |
-
1977
- 1977-07-18 JP JP8644877A patent/JPS5421515A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5236965A (en) | Magnetron | |
JPS5421515A (en) | Rotation switching system | |
JPS5221630A (en) | Anti-overcurrent and starting device of dc power transmission system | |
JPS5367853A (en) | Power-factor controlling apparatus | |
JPS5339425A (en) | Converter power source | |
JPS5240715A (en) | Starting system for motor | |
JPS53149627A (en) | Drive system for power converter | |
JPS53107632A (en) | Operating dc power transmission system | |
JPS51120637A (en) | Signal transmission system | |
JPS5232547A (en) | Three phase solid relay | |
JPS51119938A (en) | Receiving switch system to power system | |
JPS5438517A (en) | Variable frequency converter | |
JPS5241854A (en) | Power circuit | |
JPS5233023A (en) | Source circuit of motor | |
JPS5336354A (en) | Electric razor | |
JPS5224453A (en) | Frequency-voltage converter | |
JPS5212419A (en) | Thyristor invertor | |
JPS53141423A (en) | Control system for ac motor | |
JPS51126543A (en) | Power source equipment for an electric oven | |
JPS538754A (en) | Circuit for preventing rush current | |
JPS5272417A (en) | Variable speed control system for cage type induction motor | |
JPS5221616A (en) | Inverter | |
JPS52127643A (en) | High frequency heating equipment | |
JPS5325944A (en) | Radar range | |
JPS5237490A (en) | Method of slinging astral rays of microsprindias |