JPH0214238U - - Google Patents
Info
- Publication number
- JPH0214238U JPH0214238U JP9215688U JP9215688U JPH0214238U JP H0214238 U JPH0214238 U JP H0214238U JP 9215688 U JP9215688 U JP 9215688U JP 9215688 U JP9215688 U JP 9215688U JP H0214238 U JPH0214238 U JP H0214238U
- Authority
- JP
- Japan
- Prior art keywords
- transformer
- relay
- current
- main protection
- fail
- 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
- 230000005284 excitation Effects 0.000 claims 3
- 238000006243 chemical reaction Methods 0.000 claims 2
- 230000007257 malfunction Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000001012 protector Effects 0.000 claims 1
- 230000009466 transformation Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Protection Of Transformers (AREA)
Description
第1図は、実施例に係る変圧器保護制御装置の
ブロツク図、第2図は一系統の変圧器に関するシ
ステム全体を示す図、第3図は、一系統の変圧器
に関する保護制御システム全体を収容した筐体の
外観を示す図、第4図は、従来の変圧器制御部を
示す図。
3……変圧器、5a,5b……第1のCT、6
……変圧器主保護リレー、7……フエイルセーフ
リレー、8……第2のCT、9……変圧器制御部
、11……表示部。
FIG. 1 is a block diagram of a transformer protection and control device according to an embodiment, FIG. 2 is a diagram showing the entire system for one transformer, and FIG. 3 is a diagram showing the entire protection and control system for one transformer. FIG. 4 is a diagram showing the appearance of the housing housing the transformer, and FIG. 4 is a diagram showing a conventional transformer control unit. 3...Transformer, 5a, 5b...First CT, 6
...Transformer main protection relay, 7...Fail safe relay, 8...Second CT, 9...Transformer control section, 11...Display section.
Claims (1)
流突入時に自らのリレー動作を抑制する変圧器主
保護リレーと、変圧器主保護リレーの誤不動作を
補償するフエイルセーフリレーと、負荷の大きさ
に応じて変圧器の巻線比を調整して受電端の電位
を目標値にする変圧器制御部とを具備する装置に
おいて、 上記変圧器主保護リレーが、変圧器の一次側と
二次側に流れる電流量に比例した信号をデイジタ
ル信号に変換し、一次側と二次側との変換データ
の差に基いて変圧器内部の故障検出を行なうと共
に、励磁突入電流の高調波成分を分折して励磁電
流突入時に自らのリレー動作を抑制するするもの
であり、 上記フエイルセーフリレーと変圧器制御部とが
共通の演算処理手段に組み込まれ、該演算処理手
段により、上記変換データほ基いて変圧器内部の
故障検出を行なうと共に、負荷電流、および線路
電圧に基いて受電端の電位を目標値にする変圧比
を算出するものであることを特徴とする変圧器保
護制御装置。[Scope of claim for utility model registration] A transformer main protection relay that detects faults inside the transformer and suppresses its own relay operation when excitation current rushes, and a fail protector that compensates for malfunction of the transformer main protection relay. In a device comprising a safe relay and a transformer control unit that adjusts the winding ratio of the transformer according to the size of the load and sets the potential at the receiving end to a target value, the transformer main protection relay A signal proportional to the amount of current flowing through the primary and secondary sides of the transformer is converted into a digital signal, and based on the difference in conversion data between the primary and secondary sides, faults inside the transformer are detected, and excitation inrush is detected. The system splits the harmonic components of the current and suppresses its own relay operation when the excitation current rushes in. The fail-safe relay and the transformer control section are incorporated into a common calculation processing means, and the calculation processing The method is characterized in that the means detects a fault inside the transformer based on the conversion data, and calculates a transformation ratio that brings the potential at the receiving end to a target value based on the load current and line voltage. Transformer protection control device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9215688U JPH0214238U (en) | 1988-07-11 | 1988-07-11 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9215688U JPH0214238U (en) | 1988-07-11 | 1988-07-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0214238U true JPH0214238U (en) | 1990-01-29 |
Family
ID=31316611
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9215688U Pending JPH0214238U (en) | 1988-07-11 | 1988-07-11 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0214238U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5067180U (en) * | 1973-10-29 | 1975-06-16 | ||
JP2014064354A (en) * | 2012-09-20 | 2014-04-10 | Fanuc Ltd | Digitally-controlled power supply having failure detection function |
JP2017510234A (en) * | 2014-02-24 | 2017-04-06 | マシイネンフアブリーク・ラインハウゼン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Power system connection point for distribution system, regulation transformer for power system connection point, and method for operating power system connection point |
-
1988
- 1988-07-11 JP JP9215688U patent/JPH0214238U/ja active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5067180U (en) * | 1973-10-29 | 1975-06-16 | ||
JP2014064354A (en) * | 2012-09-20 | 2014-04-10 | Fanuc Ltd | Digitally-controlled power supply having failure detection function |
JP2017510234A (en) * | 2014-02-24 | 2017-04-06 | マシイネンフアブリーク・ラインハウゼン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Power system connection point for distribution system, regulation transformer for power system connection point, and method for operating power system connection point |
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