JPS5940863U - Three-phase AC abnormal voltage detector - Google Patents
Three-phase AC abnormal voltage detectorInfo
- Publication number
- JPS5940863U JPS5940863U JP13582982U JP13582982U JPS5940863U JP S5940863 U JPS5940863 U JP S5940863U JP 13582982 U JP13582982 U JP 13582982U JP 13582982 U JP13582982 U JP 13582982U JP S5940863 U JPS5940863 U JP S5940863U
- Authority
- JP
- Japan
- Prior art keywords
- phase
- voltage detector
- abnormal voltage
- sections
- rectifying
- 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
- Measurement Of Current Or Voltage (AREA)
- Emergency Protection Circuit Devices (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図は従来の三相交流異常電圧検出器を示すブロック
図、第２図は本考案による三相交流異常電圧検出器の一
実施例を示す回路ブロック図である。
ｌａ、 ｌｂ、 １ｃ−−−入力端子、２ａ、 ２
ｂ、 ２ｃｍ人カドランス部、３ａ、 ３ｂ、 ３
ｃ・・・整流、平滑部、４ａ、 ４ｂ、 ４ｃ・・
・電圧比較回路、５・・・異常上昇または低下信号出力
、６・・・基準電圧回路。FIG. 1 is a block diagram showing a conventional three-phase AC abnormal voltage detector, and FIG. 2 is a circuit block diagram showing an embodiment of the three-phase AC abnormal voltage detector according to the present invention. la, lb, 1c---input terminal, 2a, 2
b, 2cm quadrangle part, 3a, 3b, 3
c... Rectification, smoothing part, 4a, 4b, 4c...
- Voltage comparison circuit, 5... Abnormal rise or fall signal output, 6... Reference voltage circuit.
Claims (1)
、第２、第３トランス部と、前記第１、第２、第３トラ
ンス部の出力をそれぞれ直流交換する第１、第２、第３
整流、平滑部と、前記第１、第２、第３の整流、平滑部
出力のいずれか２つの相電圧間または線間電圧を比較す
る第１、第２、′ 第３電圧比較回路とを含み
、三相電圧の不平−を検出するように構成したことを特
徴とする三相交流異常電圧検出器。The first input is one phase, two phases, and three phases of three-phase alternating current.
, second and third transformer sections, and first, second and third transformer sections that exchange DC outputs of the first, second and third transformer sections, respectively.
a rectifying/smoothing section, and first, second, and third voltage comparison circuits for comparing phase voltages or line voltages of any two of the outputs of the first, second, and third rectifying/smoothing sections; A three-phase AC abnormal voltage detector, characterized in that it is configured to detect abnormalities in three-phase voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13582982U JPS5940863U (en) | 1982-09-07 | 1982-09-07 | Three-phase AC abnormal voltage detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13582982U JPS5940863U (en) | 1982-09-07 | 1982-09-07 | Three-phase AC abnormal voltage detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5940863U true JPS5940863U (en) | 1984-03-15 |
Family
ID=30305596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13582982U Pending JPS5940863U (en) | 1982-09-07 | 1982-09-07 | Three-phase AC abnormal voltage detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5940863U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006280071A (en) * | 2005-03-29 | 2006-10-12 | Sanden Corp | Control method and control device of motor |
| JP2012205328A (en) * | 2011-03-24 | 2012-10-22 | Sanyo Electric Co Ltd | System interconnection device |
-
1982
- 1982-09-07 JP JP13582982U patent/JPS5940863U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006280071A (en) * | 2005-03-29 | 2006-10-12 | Sanden Corp | Control method and control device of motor |
| JP2012205328A (en) * | 2011-03-24 | 2012-10-22 | Sanyo Electric Co Ltd | System interconnection device |
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