JPS581170U - Short circuit detection device - Google Patents
Short circuit detection deviceInfo
- Publication number
- JPS581170U JPS581170U JP9547081U JP9547081U JPS581170U JP S581170 U JPS581170 U JP S581170U JP 9547081 U JP9547081 U JP 9547081U JP 9547081 U JP9547081 U JP 9547081U JP S581170 U JPS581170 U JP S581170U
- Authority
- JP
- Japan
- Prior art keywords
- short circuit
- transformer
- input
- detection device
- circuit
- 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
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はインバータ式電力変換装置から負荷へ電力を供
給する系統の従来例を示す回路図、第２図は短絡発生時
の変流器の出力電流波形を示すタイムチャート、第３図
は本考案の一実施例を示す回路図、第４図は本考案の一
実施例を示すタイムチャートである。
１・・・・・・発電機、２・・・・・・交流−直流変換
部、３・・・・・・直流リアクトル、４・・・・・・サ
イリスクインバータ、５・・・・・・交流リアクトル、
６・曲・しゃ断器、７・・曲母線、訃・・・・・負荷、
９・・・・・・同期調相機、１３・・回置圧器、１４・
・・・・・整流器、１５・・・・・・分圧抵抗、１６・
・・・・・比較器、１７・・・・・・設定器。Figure 1 is a circuit diagram showing a conventional example of a system that supplies power from an inverter-type power converter to a load, Figure 2 is a time chart showing the output current waveform of a current transformer when a short circuit occurs, and Figure 3 is a diagram of the present invention. FIG. 4 is a circuit diagram showing an embodiment of the invention, and FIG. 4 is a time chart showing an embodiment of the invention. 1... Generator, 2... AC-DC converter, 3... DC reactor, 4... Sirisk inverter, 5...・AC reactor,
6.Curved circuit breaker, 7.Curved generatrix, end...Load,
9... Synchronous phase adjuster, 13... Circulating pressure machine, 14...
... Rectifier, 15 ... Voltage dividing resistor, 16.
...Comparator, 17...Setter.
Claims (1)
アクドルとを備えた電力変換装置から負荷へ電力を供給
するように構成した系統の短絡検出装置において、 上記リアクトルに並列に接続された１次巻線を有する変
圧器と、この変圧器のゑ次巻線に接続され変圧器出力を
所定の直流電圧に変換する変換回路と、この変換回路の
出力端子に一方の入力端子が接続され且つ他方の入力端
子が設定器の出力端子に接続された比較器とを備え、 系統の負荷側において短絡事故が発生して上記リアクト
ルに短絡電流が流れたとき、このリアクトルに発生する
電圧を上記変圧器及び上記変換回路を経て上記比較器に
入力し、この比較器において上記変換回路を経て入力さ
れた電圧を上記設定器に設定された基準値と比較して短
絡の発生を検出することを特徴とする短絡検出装置。[Claims for Utility Model Registration] In a short-circuit detection device for a system configured to supply power to a load from a power conversion device comprising an inverter and an accelerator connected to the output side of the inverter, a transformer having a primary winding connected to the transformer; a conversion circuit connected to the primary winding of the transformer for converting the transformer output into a predetermined DC voltage; and one input connected to the output terminal of the conversion circuit. It is equipped with a comparator whose terminal is connected and the other input terminal is connected to the output terminal of the setting device, and when a short circuit accident occurs on the load side of the system and a short circuit current flows through the reactor, the The voltage input through the transformer and the conversion circuit is input to the comparator, and the comparator compares the voltage input through the conversion circuit with a reference value set in the setting device to detect the occurrence of a short circuit. A short circuit detection device characterized by detecting a short circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9547081U JPS581170U (en) | 1981-06-26 | 1981-06-26 | Short circuit detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9547081U JPS581170U (en) | 1981-06-26 | 1981-06-26 | Short circuit detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS581170U true JPS581170U (en) | 1983-01-06 |
Family
ID=29890374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9547081U Pending JPS581170U (en) | 1981-06-26 | 1981-06-26 | Short circuit detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS581170U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59156450U (en) * | 1983-04-07 | 1984-10-20 | セイレイ工業株式会社 | Anti-wrapping device for straw cutter of combine harvester |
-
1981
- 1981-06-26 JP JP9547081U patent/JPS581170U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59156450U (en) * | 1983-04-07 | 1984-10-20 | セイレイ工業株式会社 | Anti-wrapping device for straw cutter of combine harvester |
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