JPS55110018A - Condenser-type potential transformer - Google Patents
Condenser-type potential transformerInfo
- Publication number
- JPS55110018A JPS55110018A JP1728279A JP1728279A JPS55110018A JP S55110018 A JPS55110018 A JP S55110018A JP 1728279 A JP1728279 A JP 1728279A JP 1728279 A JP1728279 A JP 1728279A JP S55110018 A JPS55110018 A JP S55110018A
- Authority
- JP
- Japan
- Prior art keywords
- reactor
- transformer
- flux density
- magnetic flux
- resonance
- 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
- Transformers For Measuring Instruments (AREA)
Abstract
PURPOSE: To eliminate the secondary short-circuit protective gap for a condenser- type potential transformer and to simplify the constitution with the initial performance maintained for a long period of times, by using a magnetic material with a low saturation magnetic flux density and a high permeability for the iron core of the resonance reactor of the transformer.
CONSTITUTION: The potential transformer consists of a main capacitor C1 and a voltage-dividing capacitor C2 in series, and a transformer T and a resonance reactor L' in series connected across the capacitor C2. In this constituton, a magnetic material with a low saturation magnetic flux density and a high permeability, such as permalloy, is used for the iron core of the resonance reactor L'. Thus, even if the secondary short-circuit occurs and the terminal voltage of the reactor L' is raised, it is saturated at around from two to five times the rated voltage due to the low saturation magnetic flux density, so that the resonance condition of the parallel impedance the capacitances C1, C2 and the reactor L' is detuned, and the short-circuit current is restrained. Therefore, a protective gap for the reactor L' can be eliminated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1728279A JPS55110018A (en) | 1979-02-19 | 1979-02-19 | Condenser-type potential transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1728279A JPS55110018A (en) | 1979-02-19 | 1979-02-19 | Condenser-type potential transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55110018A true JPS55110018A (en) | 1980-08-25 |
Family
ID=11939618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1728279A Pending JPS55110018A (en) | 1979-02-19 | 1979-02-19 | Condenser-type potential transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55110018A (en) |
-
1979
- 1979-02-19 JP JP1728279A patent/JPS55110018A/en active Pending
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