JPH0428738U - - Google Patents
Info
- Publication number
- JPH0428738U JPH0428738U JP7055590U JP7055590U JPH0428738U JP H0428738 U JPH0428738 U JP H0428738U JP 7055590 U JP7055590 U JP 7055590U JP 7055590 U JP7055590 U JP 7055590U JP H0428738 U JPH0428738 U JP H0428738U
- Authority
- JP
- Japan
- Prior art keywords
- ground
- current
- zero
- event
- passed
- 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
- Emergency Protection Circuit Devices (AREA)
Description
図面第１図は本考案、高圧地絡方向保護装置、
の概略図。１はライン線、２零相電流器、３は地
絡継電器、４は高圧開閉器、５はケーブル線、６
はコンデンサー、７は第一種接地線、８は第一種
接地線〔不接地〕、９は第一種接地極。
Figure 1 of the drawing shows the present invention, high voltage ground fault directional protection device,
Schematic diagram. 1 is a line wire, 2 is a zero-phase current generator, 3 is a ground fault relay, 4 is a high voltage switch, 5 is a cable wire, 6
is a capacitor, 7 is a first-class grounding wire, 8 is a first-class grounding wire (ungrounded), and 9 is a first-class grounding electrode.
Claims (1)
流にほぼ等しい逆向きの電流を零相変流器に通じ
て外部〔保護範囲外〕地絡事故時には動作しない
ことを特徴とする保護装置。[Scope of claim for utility model registration] A current almost equal to the ground charging current in the opposite direction due to the ground capacitance of cable lines, etc. is passed through a zero-phase current transformer so that it will not operate in the event of an external (outside the protection range) ground fault. Features a protective device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7055590U JPH0428738U (en) | 1990-07-02 | 1990-07-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7055590U JPH0428738U (en) | 1990-07-02 | 1990-07-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0428738U true JPH0428738U (en) | 1992-03-06 |
Family
ID=31606805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7055590U Pending JPH0428738U (en) | 1990-07-02 | 1990-07-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0428738U (en) |
-
1990
- 1990-07-02 JP JP7055590U patent/JPH0428738U/ja active Pending
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