JPS5674664A - Dielectric deterioration deciding method of range insulation winding of rotary electric machine - Google Patents
Dielectric deterioration deciding method of range insulation winding of rotary electric machineInfo
- Publication number
- JPS5674664A JPS5674664A JP15132679A JP15132679A JPS5674664A JP S5674664 A JPS5674664 A JP S5674664A JP 15132679 A JP15132679 A JP 15132679A JP 15132679 A JP15132679 A JP 15132679A JP S5674664 A JPS5674664 A JP S5674664A
- Authority
- JP
- Japan
- Prior art keywords
- residual
- deterioration
- winding
- coordinates
- coil
- 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
- 230000006866 deterioration Effects 0.000 title abstract 5
- 238000004804 winding Methods 0.000 title abstract 4
- 238000009413 insulation Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 230000015556 catabolic process Effects 0.000 abstract 2
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
Landscapes
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Testing Relating To Insulation (AREA)
Abstract
PURPOSE: To prevent an accident by making the X-Y coordinates of the maximum discharging charge and a value relating to the mean discharge energy, plotting a measuring point of the winging, adding the tendency of dielectric deterioration of the winding to the residual dielectric breakdown voltage, and deciding the result.
CONSTITUTION: The measuring point of the range insulation winding is plotted on the X-Y coordinates where the maximum discharge charge Qm and the value W relating to the mean discharge energy (for instance, γ) have been graduated in the two axis directions. According to this graph, the farther the position is separated from the position of the initial coil group O, the lower the AC dielectric breakdown voltage (residual BDV) becomes for the residual short time of the winding, but the normal deterioration coil and the abnormal deterioration coil go forward in the straight line N and A, respectively. Also, when suitable value is put into the expression of VR=100-k1(W-W')-k2 log (Qm/Qm'), and a curve which has made VRa param eter is drawn on the X-Y coordinates which have been graduated by log Qm and γ, it becomes a parallel straight line group. In this way, since not only t he deterioration tendency but also the residual BDV are decided easily, an accident is prevented.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15132679A JPS5674664A (en) | 1979-11-24 | 1979-11-24 | Dielectric deterioration deciding method of range insulation winding of rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15132679A JPS5674664A (en) | 1979-11-24 | 1979-11-24 | Dielectric deterioration deciding method of range insulation winding of rotary electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5674664A true JPS5674664A (en) | 1981-06-20 |
Family
ID=15516158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15132679A Pending JPS5674664A (en) | 1979-11-24 | 1979-11-24 | Dielectric deterioration deciding method of range insulation winding of rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5674664A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02159563A (en) * | 1988-12-12 | 1990-06-19 | Hitachi Ltd | diagnostic system |
| JP2006162481A (en) * | 2004-12-08 | 2006-06-22 | Tokuyama Corp | Deterioration diagnosis method for motors |
-
1979
- 1979-11-24 JP JP15132679A patent/JPS5674664A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02159563A (en) * | 1988-12-12 | 1990-06-19 | Hitachi Ltd | diagnostic system |
| JP2006162481A (en) * | 2004-12-08 | 2006-06-22 | Tokuyama Corp | Deterioration diagnosis method for motors |
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