JPS6044435U - overcurrent relay - Google Patents
overcurrent relayInfo
- Publication number
- JPS6044435U JPS6044435U JP13694983U JP13694983U JPS6044435U JP S6044435 U JPS6044435 U JP S6044435U JP 13694983 U JP13694983 U JP 13694983U JP 13694983 U JP13694983 U JP 13694983U JP S6044435 U JPS6044435 U JP S6044435U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- detection circuit
- breaker
- output
- overcurrent relay
- 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
- Protection Of Transformers (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図は従来の過電流継電器のブロック図である。第２
図はこの考案の実施例である過電流継電器のブロック図
、第３図は同過電流継電器のタイムチャートである。
２・・・・・・過電流継電器、５・・・・・・瞬時要素
検出回路、６・・・・・・変流器、Ａ・・・・・・しゃ
断器、８・・・・・・投入検出回路、９・・・・・・計
器用変圧器、１０・・・・・・電圧検出回路、１１・・
・・・・タイマ回路、１２・・・・・・スイッチ回路、
ＸＴ・・・・・・トリップ用リレー。FIG. 1 is a block diagram of a conventional overcurrent relay. Second
The figure is a block diagram of an overcurrent relay that is an embodiment of this invention, and FIG. 3 is a time chart of the same overcurrent relay. 2... Overcurrent relay, 5... Instantaneous element detection circuit, 6... Current transformer, A... Breaker, 8... - Closing detection circuit, 9... Instrument transformer, 10... Voltage detection circuit, 11...
...Timer circuit, 12...Switch circuit,
XT...Trip relay.
Claims (3)
より瞬時要素検出回路が検出するとトリップ用リレーが
動作してしゃ断器をトリップする過電流継電器において
、しゃ断器を投入したことを検出すると出力を発する投
入検出回路と、この投入検出回路の出力を受けると所定
時間後に出力を発するタイマ回路と、このタイマ回路が
出力を発しないときには瞬時要素検出回路を過電、
流継電器の回路と切り離し、このタイマ回路の出力を
受けると瞬時要素検出回路を過電流継電器の回路に接続
するスイッチ回路とを設けたことを特徴とする過電流継
電器。(1) When the instantaneous element detection circuit detects that the current in the electrical circuit exceeds a predetermined value using a current transformer, the trip relay operates and trips the breaker.In an overcurrent relay, it is detected that the breaker has been closed. Then, there is an input detection circuit that generates an output, a timer circuit that generates an output after a predetermined period of time when it receives the output of this input detection circuit, and an instantaneous element detection circuit that is overpowered when this timer circuit does not generate an output.
An overcurrent relay comprising: a switch circuit that is separated from the current relay circuit and connects an instantaneous element detection circuit to the overcurrent relay circuit upon receiving the output of the timer circuit.
用変圧器と電圧検出回路とで検出することにより、しゃ
断器を投入したことを検出する回路である実用新案登録
請求の範囲第１項記載の過電流継電器。(2) The closing detection circuit is a circuit that detects that the breaker has been closed by detecting the voltage on the load side of the breaker using an instrument transformer and a voltage detection circuit. The overcurrent relay described in item 1.
補助接点を設け、この補助接点が閉じたことを検出する
ことにより、しゃ断器を投入した゛ことを検出する回路
である実用新案登録請求の範囲第１項記載の過電流継電
器。(3) A utility model in which the closing detection circuit is a circuit that detects that the breaker has been closed by providing an auxiliary contact that interlocks with the main contact part of the breaker and detecting that the auxiliary contact is closed. An overcurrent relay according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13694983U JPS6044435U (en) | 1983-09-02 | 1983-09-02 | overcurrent relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13694983U JPS6044435U (en) | 1983-09-02 | 1983-09-02 | overcurrent relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6044435U true JPS6044435U (en) | 1985-03-28 |
Family
ID=30307755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13694983U Pending JPS6044435U (en) | 1983-09-02 | 1983-09-02 | overcurrent relay |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6044435U (en) |
-
1983
- 1983-09-02 JP JP13694983U patent/JPS6044435U/en active Pending
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