JPS6288423U - - Google Patents
Info
- Publication number
- JPS6288423U JPS6288423U JP17903085U JP17903085U JPS6288423U JP S6288423 U JPS6288423 U JP S6288423U JP 17903085 U JP17903085 U JP 17903085U JP 17903085 U JP17903085 U JP 17903085U JP S6288423 U JPS6288423 U JP S6288423U
- Authority
- JP
- Japan
- Prior art keywords
- ground fault
- neutral point
- bus
- point resistance
- winding
- 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
- 238000004804 winding Methods 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Emergency Protection Circuit Devices (AREA)
Description
第１図は本考案の３巻線変圧器の地絡保護装置
の実施例の単線接続図、第２図は第１図の地絡保
護インターロツク説明図、第３図は従来の３巻線
変圧器の地絡保護装置の単線接続図、第４図は第
３図の地絡保護インターロツク説明図である。
１……３巻線変圧器、２，３……受電しや断器
、４，５……中性点抵抗接地装置。
Figure 1 is a single-line connection diagram of an embodiment of the ground fault protection device for a three-winding transformer of the present invention, Figure 2 is an explanatory diagram of the ground fault protection interlock of Figure 1, and Figure 3 is a conventional three-winding transformer. A single line connection diagram of a ground fault protection device for a transformer, and FIG. 4 is an explanatory diagram of the ground fault protection interlock of FIG. 3. 1... 3-winding transformer, 2, 3... Power receiving and disconnecting switch, 4, 5... Neutral point resistance grounding device.
Claims (1)
変電所設備の２次電圧と３次電圧が同一の中性点
抵抗接地方式の３巻線変圧器において、２次、３
次の中性点抵抗接地装置を共用し、地絡過電流継
電器とブス地絡過電圧継電器のインターロツク条
件で、地絡事故のＢＵＳを判定するように構成し
たことを特徴とする３巻線変圧器の地絡保護装置
。 In various power generation plants such as thermal power, nuclear power, hydropower, etc. and substation equipment, the secondary voltage and tertiary voltage are the same in neutral point resistance grounded type 3-winding transformers.
A three-winding transformer characterized by sharing the following neutral point resistance grounding device and configured to determine the BUS of a ground fault accident under the interlock conditions of a ground fault overcurrent relay and a bus ground fault overvoltage relay. earth fault protection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17903085U JPS6288423U (en) | 1985-11-22 | 1985-11-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17903085U JPS6288423U (en) | 1985-11-22 | 1985-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6288423U true JPS6288423U (en) | 1987-06-05 |
Family
ID=31121719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17903085U Pending JPS6288423U (en) | 1985-11-22 | 1985-11-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6288423U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011061903A (en) * | 2009-09-07 | 2011-03-24 | Toshiba Corp | Grounding protection system for distribution unit substation |
-
1985
- 1985-11-22 JP JP17903085U patent/JPS6288423U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011061903A (en) * | 2009-09-07 | 2011-03-24 | Toshiba Corp | Grounding protection system for distribution unit substation |
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