JPS5559350A - Simple corona test method for insulating spacer - Google Patents
Simple corona test method for insulating spacerInfo
- Publication number
- JPS5559350A JPS5559350A JP13229978A JP13229978A JPS5559350A JP S5559350 A JPS5559350 A JP S5559350A JP 13229978 A JP13229978 A JP 13229978A JP 13229978 A JP13229978 A JP 13229978A JP S5559350 A JPS5559350 A JP S5559350A
- Authority
- JP
- Japan
- Prior art keywords
- spacer
- insulating
- voltage
- defect
- dielectric constant
- 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.)
- Granted
Links
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
PURPOSE: To secure a simple and high-accuracy detection for the defect of the insulating spacer with a low level of the test voltage by filling the insulating oil of a fixed specific dielectric constant between the insulating spacer and the test electrode near the spacer and then applying a high electric field to the spacer.
CONSTITUTION: Cone-shaped insulating spacer 6 or the like which gives insulation between high-voltage shield 2 and the earthed low-voltage shield is attached to test tank 3a, and at the same time electrodes 10 and 11 are distributed near spacer 6 to secure the same potential as shields 2 and 5 each. Then insulating oil 13 featuring the dielectric constant of 2W6 is injected to tank 3a, and thus the area between spacer 6 and electrodes 10 and 11 is filled by the insulating oil featuring nearly the identical dielectric constant to spacer 6. And with application of the voltage between tank 3a and conductor 1a connected to shield 2 and if the defect such as the air void or the like occurs at spacer 6, the corona discharge is produced between electrodes 10 and 11 due to the high electric field. In such way, the defect of the insulating spacer can be detected in a simple and high-accuracy way and with a low level of the test voltage.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13229978A JPS5559350A (en) | 1978-10-27 | 1978-10-27 | Simple corona test method for insulating spacer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13229978A JPS5559350A (en) | 1978-10-27 | 1978-10-27 | Simple corona test method for insulating spacer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5559350A true JPS5559350A (en) | 1980-05-02 |
JPS6226426B2 JPS6226426B2 (en) | 1987-06-09 |
Family
ID=15078038
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13229978A Granted JPS5559350A (en) | 1978-10-27 | 1978-10-27 | Simple corona test method for insulating spacer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5559350A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105606962A (en) * | 2015-09-10 | 2016-05-25 | 广州供电局有限公司 | Casing pipe insulation air gap defect simulation device and manufacturing method thereof |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7021069B2 (en) | 2015-08-03 | 2022-02-16 | ハネウェル・インターナショナル・インコーポレーテッド | Friction-free forged aluminum alloy sputtering target with improved properties |
US10900102B2 (en) | 2016-09-30 | 2021-01-26 | Honeywell International Inc. | High strength aluminum alloy backing plate and methods of making |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5082398U (en) * | 1973-11-30 | 1975-07-15 |
-
1978
- 1978-10-27 JP JP13229978A patent/JPS5559350A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5082398U (en) * | 1973-11-30 | 1975-07-15 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105606962A (en) * | 2015-09-10 | 2016-05-25 | 广州供电局有限公司 | Casing pipe insulation air gap defect simulation device and manufacturing method thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS6226426B2 (en) | 1987-06-09 |
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