JPS5366029A - Process for sensing inferior insulation portions in low frequency induction furnace - Google Patents
Process for sensing inferior insulation portions in low frequency induction furnaceInfo
- Publication number
- JPS5366029A JPS5366029A JP14249776A JP14249776A JPS5366029A JP S5366029 A JPS5366029 A JP S5366029A JP 14249776 A JP14249776 A JP 14249776A JP 14249776 A JP14249776 A JP 14249776A JP S5366029 A JPS5366029 A JP S5366029A
- Authority
- JP
- Japan
- Prior art keywords
- sensing
- low frequency
- frequency induction
- induction furnace
- insulation portions
- 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: DC voltage having a constant value to be adjusted by DC power supply and a variable resistor is applied between the adjacent windings having a different polarity and thereby an inferior insulation portion may easily be sensed by a variation in electric current flowing in said windings.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14249776A JPS5366029A (en) | 1976-11-26 | 1976-11-26 | Process for sensing inferior insulation portions in low frequency induction furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14249776A JPS5366029A (en) | 1976-11-26 | 1976-11-26 | Process for sensing inferior insulation portions in low frequency induction furnace |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5366029A true JPS5366029A (en) | 1978-06-13 |
Family
ID=15316697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14249776A Pending JPS5366029A (en) | 1976-11-26 | 1976-11-26 | Process for sensing inferior insulation portions in low frequency induction furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5366029A (en) |
-
1976
- 1976-11-26 JP JP14249776A patent/JPS5366029A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5316811A (en) | Controller for commutatorless motor | |
JPS5246415A (en) | Control device for ac motor | |
JPS5366029A (en) | Process for sensing inferior insulation portions in low frequency induction furnace | |
JPS5317732A (en) | Method and device for charging by corona discharge | |
JPS5388115A (en) | Controller for alternating current motors | |
JPS523115A (en) | Power source device | |
JPS5335926A (en) | Self exciting inverter control circuit | |
JPS568562A (en) | Measuring device for reactance change | |
JPS52122944A (en) | Induction heating device | |
JPS5312058A (en) | Dc power controlling apparatus | |
JPS5379250A (en) | Electric machine | |
JPS5321437A (en) | Induction heating device | |
JPS52111624A (en) | Alternating current wave form transforming apparatus | |
JPS532741A (en) | Inductive heating unit | |
GR3001833T3 (en) | Three-phase current motor | |
JPS53131447A (en) | Control of power invertor in use for power trfnsmission | |
JPS5694981A (en) | Stabilized frequency power unit | |
JPS5313912A (en) | Magnetic tape copying device | |
JPS5299443A (en) | Inrush current reducing device of positive temperature coefficient res istance element | |
JPS5336754A (en) | High frequency induction heating device | |
JPS5340849A (en) | Switching circuit for ac load | |
JPS56103510A (en) | Mobile power amplifier for automobile | |
JPS5523549A (en) | Electric device | |
JPS5383052A (en) | Zero-cross swtching circuit | |
JPS5719153A (en) | Voltage controller of electrical soldering iron |