JPH0443348U - - Google Patents
Info
- Publication number
- JPH0443348U JPH0443348U JP8634490U JP8634490U JPH0443348U JP H0443348 U JPH0443348 U JP H0443348U JP 8634490 U JP8634490 U JP 8634490U JP 8634490 U JP8634490 U JP 8634490U JP H0443348 U JPH0443348 U JP H0443348U
- Authority
- JP
- Japan
- Prior art keywords
- high voltage
- power supply
- ground fault
- fault current
- supply device
- 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
- 239000004020 conductor Substances 0.000 claims description 7
- 230000007935 neutral effect Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 231100001261 hazardous Toxicity 0.000 claims 1
- 239000012212 insulator Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案中性点接地式高圧給電装置の一
実施例における、地絡電流帰還用導体の接地点外
で地絡した場合の装置全体の模式図、第２図は同
上における高圧ケーブルの横断面図、第３図は地
絡電流帰還用導体の接地点内で地絡した場合の本
装置全体の模式図、第４図は同上における高圧ケ
ーブルの横断面図である。第５図は従来装置全体
の模式図、第６図は同上における高圧ケーブルの
横断面図である。
１……高圧発電機、２……高圧母線、３……高
圧ケーブル、３ａ……電源用導体、３ｂ……金属
シールド、３ｃ……地絡電流帰還用裸導体、４…
…負荷、５……地絡電流検出器、６……接地抵抗
、７……地絡発生点、８……地絡電流、９……危
険区画、１０……ケーブル内を流れる地絡電流、
１１……危険区画を流れる地絡電流。
Figure 1 is a schematic diagram of the entire device when a ground fault occurs outside the grounding point of the ground fault current return conductor in one embodiment of the neutral point grounding type high voltage power supply device of the present invention, and Figure 2 is a high voltage cable in the same embodiment. 3 is a schematic diagram of the entire device when a ground fault occurs within the grounding point of the ground fault current return conductor, and FIG. 4 is a cross sectional view of the high voltage cable in the same. FIG. 5 is a schematic diagram of the entire conventional device, and FIG. 6 is a cross-sectional view of the high-voltage cable in the same. 1... High voltage generator, 2... High voltage bus, 3... High voltage cable, 3a... Power supply conductor, 3b... Metal shield, 3c... Bare conductor for ground fault current return, 4...
...Load, 5...Ground fault current detector, 6...Grounding resistance, 7...Ground fault occurrence point, 8...Ground fault current, 9...Dangerous area, 10...Ground fault current flowing in the cable,
11...Earth fault current flowing through a dangerous area.
Claims (1)
される中性点接地式高圧給電装置において、電源
用導体を金属シールドで巻きその周りを絶縁体で
包んだ高圧ケーブル内に地絡電流帰還用導体を配
設し、その一端を上記接地抵抗へ接続し他端を危
険区画を越えた地点へ接地したことを特徴とする
中性点接地式高圧給電装置。 (2) 上記地絡電流帰還用導体を裸線とし上記金
属シールドと接触させて配線したことを特徴とす
る請求項(1)記載の中性点接地式高圧給電装置。[Scope of Claim for Utility Model Registration] (1) In a neutral point grounding type high voltage power supply device that is grounded via a ground fault current detector and a grounding resistor, the power supply conductor is wrapped with a metal shield and the surrounding area is wrapped with an insulator. A neutral point grounding type high voltage power supply device characterized in that a ground fault current return conductor is disposed within the high voltage cable, one end of which is connected to the above grounding resistor, and the other end is grounded to a point beyond the hazardous area. . (2) The neutral point grounding type high voltage power supply device according to claim (1), wherein the ground fault current feedback conductor is a bare wire and is wired in contact with the metal shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8634490U JPH0443348U (en) | 1990-08-17 | 1990-08-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8634490U JPH0443348U (en) | 1990-08-17 | 1990-08-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0443348U true JPH0443348U (en) | 1992-04-13 |
Family
ID=31635859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8634490U Pending JPH0443348U (en) | 1990-08-17 | 1990-08-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0443348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6416387U (en) * | 1987-07-17 | 1989-01-26 |
-
1990
- 1990-08-17 JP JP8634490U patent/JPH0443348U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6416387U (en) * | 1987-07-17 | 1989-01-26 |
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