JPH0397335U - - Google Patents
Info
- Publication number
- JPH0397335U JPH0397335U JP270990U JP270990U JPH0397335U JP H0397335 U JPH0397335 U JP H0397335U JP 270990 U JP270990 U JP 270990U JP 270990 U JP270990 U JP 270990U JP H0397335 U JPH0397335 U JP H0397335U
- Authority
- JP
- Japan
- Prior art keywords
- current transformer
- phase
- earth
- grounding
- grounding 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
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 1
Description
第１図、第２図は本考案の実施例を示す図、第
３図から第５図は従来技術による実施例を示す図
である。
図において、１，１１……変電所、４……変流
器、４ａ，４ｂ，４ｃ……変流器４の各一相分、
４ａｇ，４ｂｇ，４ｃｇ……変流器４の三次巻線
用変流器、４ｚ……誘導電流キヤンセル用の変流
器、５……接地装置、５ａ，５ｂ，５ｃ……接地
装置５の各一相分の接地装置、８……継電器、８
ａ……過電流継電器、８ｂ……地絡継電器、であ
る。
1 and 2 are diagrams showing an embodiment of the present invention, and FIGS. 3 to 5 are diagrams showing an embodiment according to the prior art. In the figure, 1, 11... substation, 4... current transformer, 4a, 4b, 4c... one phase each of current transformer 4,
4ag, 4bg, 4cg... current transformer for the tertiary winding of current transformer 4, 4z... current transformer for canceling induced current, 5... grounding device, 5a, 5b, 5c... each of grounding device 5 Grounding device for one phase, 8...Relay, 8
a...overcurrent relay, 8b...ground fault relay.
Claims (1)
た継電器を有する電気所の、送電線に接続される
三相接地装置において、該接地装置と大地を接続
する接地回路を、三相接続した後、変流器１個を
介して大地に接続した接地装置。 In a three-phase grounding device connected to a power transmission line at an electric station that has a current transformer that detects fault current and a relay connected to the current transformer, the grounding circuit that connects the grounding device and the earth is connected to a three-phase After connection, the earthing device is connected to the earth through one current transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP270990U JPH0397335U (en) | 1990-01-18 | 1990-01-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP270990U JPH0397335U (en) | 1990-01-18 | 1990-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0397335U true JPH0397335U (en) | 1991-10-07 |
Family
ID=31506567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP270990U Pending JPH0397335U (en) | 1990-01-18 | 1990-01-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0397335U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008183395A (en) * | 2007-01-29 | 2008-08-14 | Joy Magic Co Ltd | Smokeless roaster and roasting table provided with the same |
-
1990
- 1990-01-18 JP JP270990U patent/JPH0397335U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008183395A (en) * | 2007-01-29 | 2008-08-14 | Joy Magic Co Ltd | Smokeless roaster and roasting table provided with the same |
| JP4671240B2 (en) * | 2007-01-29 | 2011-04-13 | ジョイ マジック カンパニー リミテッド | Smokeless roaster and roasting table with it |
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