JPS5516215A - Power source for stain test - Google Patents
Power source for stain testInfo
- Publication number
- JPS5516215A JPS5516215A JP8831478A JP8831478A JPS5516215A JP S5516215 A JPS5516215 A JP S5516215A JP 8831478 A JP8831478 A JP 8831478A JP 8831478 A JP8831478 A JP 8831478A JP S5516215 A JPS5516215 A JP S5516215A
- Authority
- JP
- Japan
- Prior art keywords
- transformer
- voltage
- generator
- leakage current
- short
- 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
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
PURPOSE: To control the potential variation due to an increase of leakage current by providing a parallel transformer and a series transformer which has thyristor switch in the secondary side between the short-circuit generator and test transformer.
CONSTITUTION: The parallel transformer TP and series transformer TS which has thyristor switches in the secondary winding are placed between the short-circuit generator G and test transformer T, both the secondary windings of both the transformers TP, TS are connected. Also produced voltages Vi (V1, V2, ---) of the transformer TS are made reverse to voltage E of the generator G. When a leakage current of the trial piece P increases and applied voltage drops, the voltage divider PD detects it, the control unit C operates the switches S when the value exceeds a previously set range. As a result, the secondary side of transformer TS is shorted, reverse voltage Vi are extinguished, voltage of the transformer TP is increased, the voltage applied to the trial piece P is raised. Thus the voltage variation rate can be improved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8831478A JPS5516215A (en) | 1978-07-21 | 1978-07-21 | Power source for stain test |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8831478A JPS5516215A (en) | 1978-07-21 | 1978-07-21 | Power source for stain test |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5516215A true JPS5516215A (en) | 1980-02-04 |
Family
ID=13939462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8831478A Pending JPS5516215A (en) | 1978-07-21 | 1978-07-21 | Power source for stain test |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5516215A (en) |
-
1978
- 1978-07-21 JP JP8831478A patent/JPS5516215A/en active Pending
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