JPH0451739U - - Google Patents
Info
- Publication number
- JPH0451739U JPH0451739U JP9318590U JP9318590U JPH0451739U JP H0451739 U JPH0451739 U JP H0451739U JP 9318590 U JP9318590 U JP 9318590U JP 9318590 U JP9318590 U JP 9318590U JP H0451739 U JPH0451739 U JP H0451739U
- Authority
- JP
- Japan
- Prior art keywords
- vacuum switch
- protection circuit
- power source
- load
- frequency
- 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
- 239000003990 capacitor Substances 0.000 claims 1
- 230000015556 catabolic process Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Description
第１図はこの考案の一実施例による真空開閉器
の保護回路を示す構成図、第２図及び第３図は実
施例の動作を示す電流波形を示す波形図、第４図
及び第５図はこの考案の他の実施例による真空開
閉器の保護回路を示す構成図、第６図は従来の真
空開閉器を用いた電力系統回路を示す構成図、第
７図は従来の真空開閉器を流れるアーク電流波形
を示す波形図である。
２は真空開閉器、３は負荷、４は保護回路。な
お、図中、同一符号は同一、又は相当部分を示す
。
Fig. 1 is a configuration diagram showing a protection circuit of a vacuum switch according to an embodiment of this invention, Figs. 2 and 3 are waveform diagrams showing current waveforms showing the operation of the embodiment, and Figs. 4 and 5. is a block diagram showing a protection circuit of a vacuum switch according to another embodiment of this invention, FIG. 6 is a block diagram showing a power system circuit using a conventional vacuum switch, and FIG. 7 is a block diagram showing a power system circuit using a conventional vacuum switch. FIG. 3 is a waveform diagram showing a flowing arc current waveform. 2 is a vacuum switch, 3 is a load, and 4 is a protection circuit. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
点間絶縁破壊した場合に、アーク電流を遮断する
真空開閉器の保護回路において前記負荷と並列に
接続され、共振周波数が前記電源の周波数よりも
高いコイルとコンデンサとの直列回路を備えたこ
とを特徴とする真空開閉器の保護回路。 When a vacuum switch installed between a power source and a load suffers dielectric breakdown between its contacts, the vacuum switch is connected in parallel with the load in a protection circuit that cuts off arc current, and the resonant frequency is lower than the frequency of the power source. A vacuum switch protection circuit characterized by having a series circuit with a high-performance coil and a capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9318590U JPH0451739U (en) | 1990-09-05 | 1990-09-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9318590U JPH0451739U (en) | 1990-09-05 | 1990-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0451739U true JPH0451739U (en) | 1992-04-30 |
Family
ID=31830199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9318590U Pending JPH0451739U (en) | 1990-09-05 | 1990-09-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0451739U (en) |
-
1990
- 1990-09-05 JP JP9318590U patent/JPH0451739U/ja active Pending
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