JPS57169685A - Layer testing method for coil for armature winding - Google Patents
Layer testing method for coil for armature windingInfo
- Publication number
- JPS57169685A JPS57169685A JP5434981A JP5434981A JPS57169685A JP S57169685 A JPS57169685 A JP S57169685A JP 5434981 A JP5434981 A JP 5434981A JP 5434981 A JP5434981 A JP 5434981A JP S57169685 A JPS57169685 A JP S57169685A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- voltage
- coils
- impulse
- applying
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
Abstract
PURPOSE:To perform testing with min. required impulse voltages without damaging insulation to ground by disconnecting the one coil nearest the line side from other coils, applying the impulse voltages between conductors and an iron core and performing a layer test. CONSTITUTION:In the case of applying an impulse voltage E0 simultaneously to all coils with respect to a coil group 1 of single pole and single phase nearest the line side, about >=50% voltage is shared to the coil 3 at the applied end of the voltage. Hence, it is satisfactory to apply the shared voltage E1 lower than E0 independently to the coil 3 and to apply the E2 lower than the E0 independently to the remaining coil group 4. Hence, it is possible to select the min. required inpulse voltage value and to verify the reliability of the dielectric strength between turns sufficiently without damaging the insultion to ground by disconnectig the one coil neareset the line side from the other coils, applying the impulse voltage between the conductors and an iron core separately from the other coil groups and performing layer tests.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5434981A JPS57169685A (en) | 1981-04-13 | 1981-04-13 | Layer testing method for coil for armature winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5434981A JPS57169685A (en) | 1981-04-13 | 1981-04-13 | Layer testing method for coil for armature winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57169685A true JPS57169685A (en) | 1982-10-19 |
Family
ID=12968145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5434981A Pending JPS57169685A (en) | 1981-04-13 | 1981-04-13 | Layer testing method for coil for armature winding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57169685A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003075500A (en) * | 2001-09-05 | 2003-03-12 | Denso Corp | Winding failure inspection method |
-
1981
- 1981-04-13 JP JP5434981A patent/JPS57169685A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003075500A (en) * | 2001-09-05 | 2003-03-12 | Denso Corp | Winding failure inspection method |
| JP4561019B2 (en) * | 2001-09-05 | 2010-10-13 | 株式会社デンソー | Winding abnormality inspection method |
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