JPS61117546U - - Google Patents
Info
- Publication number
- JPS61117546U JPS61117546U JP20085284U JP20085284U JPS61117546U JP S61117546 U JPS61117546 U JP S61117546U JP 20085284 U JP20085284 U JP 20085284U JP 20085284 U JP20085284 U JP 20085284U JP S61117546 U JPS61117546 U JP S61117546U
- Authority
- JP
- Japan
- Prior art keywords
- thyristor
- power factor
- turn
- switching element
- gate
- 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 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
Landscapes
- Control Of Electrical Variables (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Description
第１図はこの考案の一実施例に係る力率継電器
の要部を示す回路図、第２図はこの考案の一実施
例に係る力率継電器の全体構成を示すブロツク図
である。
１……送配電線路、２……誘導モータ、４……
進相装置、５……トライアツク、６……力率検出
回路、７……投入・解放判定回路、７１……投入
指令用の発光ダイオード、７２……解放指令用の
発光ダイオード、８……トライアツク制御回路、
８１，８２……フオトトランジスタ、８４……サ
イリスタ（ＳＣＲ）、８６……ゼロクロスパルス
発生回路、８５……トランジスタ。
FIG. 1 is a circuit diagram showing the main parts of a power factor relay according to an embodiment of this invention, and FIG. 2 is a block diagram showing the overall structure of a power factor relay according to an embodiment of this invention. 1...Power transmission and distribution line, 2...Induction motor, 4...
Phase advancing device, 5...triack, 6...power factor detection circuit, 7...closing/release judgment circuit, 71...light emitting diode for closing command, 72...light emitting diode for releasing command, 8...triack control circuit,
81, 82...Phototransistor, 84...Thyristor (SCR), 86...Zero cross pulse generation circuit, 85...Transistor.
Claims (1)
ツクのゲート制御をなすサイリスタと、 力率改善動作の開始時にオン作動して前記サイ
リスタをターンオンさせるゼロクロスパルスを発
生させ、力率改善動作の終了時にオフ作動して該
サイリスタがターンオフするように動作する第１
のスイツチング素子を備えた力率継電器において
、 前記サイリスタのゲート・カソード間に接続さ
れる第２のスイツチング素子と、 前記サイリスタがターンオフされる期間、前記
第２のスイツチング素子をオン作動させる駆動手
段とを設けたことを特徴とする力率継電器。[Scope of Claim for Utility Model Registration] A thyristor that controls the gate of a triax that connects and releases a phase advancing device to a power transmission and distribution line, and a zero-cross pulse that is activated to turn on the thyristor at the start of a power factor correction operation, A first thyristor that operates to turn off and turn off the thyristor at the end of the power factor correction operation.
A power factor relay comprising a switching element, comprising: a second switching element connected between the gate and cathode of the thyristor; and a driving means for turning on the second switching element during a period when the thyristor is turned off. A power factor relay characterized by being provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20085284U JPS61117546U (en) | 1984-12-29 | 1984-12-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20085284U JPS61117546U (en) | 1984-12-29 | 1984-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61117546U true JPS61117546U (en) | 1986-07-24 |
Family
ID=30762087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20085284U Pending JPS61117546U (en) | 1984-12-29 | 1984-12-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61117546U (en) |
-
1984
- 1984-12-29 JP JP20085284U patent/JPS61117546U/ja active Pending