JPS5516215A - Power source for stain test - Google Patents

Power source for stain test

Info

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
Application number
JP8831478A
Other languages
Japanese (ja)
Inventor
Seigoro Nishiwaki
Tadashi Yoshida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8831478A priority Critical patent/JPS5516215A/en
Publication of JPS5516215A publication Critical patent/JPS5516215A/en
Pending legal-status Critical Current

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  • 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
JP8831478A 1978-07-21 1978-07-21 Power source for stain test Pending JPS5516215A (en)

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)

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